671 Subpart L—Chemical Cartridge Respirators

§ 83.19 42 CFR Ch. I (10–1–20 Edition)

the deliberations of the Board prior to mate the radiation doses incurred by the issuance of the recommendations of individual members of the class the Board under § 83.15. The panel shall through dose reconstructions con- consider whether HHS substantially ducted under the requirements of 42 complied with the procedures of this CFR part 82. part, the factual accuracy of the infor- (b) Before canceling a final decision mation supporting the final decision, to add a class or modifying a final deci- and the principal findings and rec- sion to reduce the scope of a class, the ommendations of NIOSH and those of Secretary intends to follow evaluation the Board issued under § 83.15. procedures that are substantially simi- (c) The Secretary will decide whether lar to those described in this part for or not to revise a final decision con- adding a class of employees to the Co- tested by the petitioner(s) under this hort. The procedures will include the section after considering information following: and recommendations provided to the (1) Publication of a notice in the FED- Secretary by the Director of NIOSH, ERAL REGISTER informing the public of the Board, and from the HHS adminis- the intent of the Secretary to review trative review conducted under para- the final decision on the basis of new graph (b) of this section. HHS will information and describing procedures transmit a report of the decision to the for this review; petitioner(s). (2) An analysis by NIOSH of the util- (d) If the Secretary decides under ity of the new information for con- paragraph (c) of this section to change ducting dose reconstructions under 42 a designation under § 83.17(a) of this CFR part 82; the analysis will be per- part or a determination under § 83.16(c) formed consistently with the require- of this part, the Secretary will trans- ments for analysis of a petition by mit to Congress a report providing NIOSH under §§ 83.13(c)(1) and (2), and such change to the designation or de- 83.13(c)(2) and (3); termination, including an iteration of (3) A recommendation by the Board the relevant criteria, as specified under to the Secretary as to whether or not § 83.13(c), and a summary of the infor- the Secretary should cancel or modify mation and findings on which the deci- his final decision that added the class sion is based. HHS will also publish a to the Cohort, based upon a review by notice summarizing the decision in the the Board of the NIOSH analysis under FEDERAL REGISTER. paragraph (b)(2) of this section and any (e) A new designation of the Sec- other relevant information considered retary under this section will take ef- by the Board; fect 30 calendar days after the date on (4) An opportunity for members of which the report of the Secretary the class to contest a proposed decision under paragraph (d) of this section is to cancel or modify the prior final deci- submitted to Congress, unless Congress sion that added the class to the Cohort, takes an action that reverses or expe- including a reasonable and timely ef- dites the designation. Such new des- fort by the Secretary to notify mem- ignations and related congressional ac- bers of the class of this opportunity; tions will be further reported by the and Secretary pursuant to paragraphs (d) (5) Publication in the FEDERAL REG- and (e) of § 83.17. ISTER of a final decision to cancel or [70 FR 75953, Dec. 22, 2005] modify the prior final decision that added the class to the Cohort. § 83.19 How can the Secretary cancel or modify a final decision to add a [69 FR 30780, May 28, 2004. Redesignated at 70 class of employees to the Cohort? FR 75953, Dec. 22, 2005] (a) The Secretary can cancel a final PART 84—APPROVAL OF decision to add a class to the Cohort, or can modify a final decision to reduce RESPIRATORY PROTECTIVE DEVICES the scope of a class added by the Sec- retary, if HHS obtains records relevant Subpart A—General Provisions to radiation exposures of members of Sec. the class that enable NIOSH to esti- 84.1 Purpose.

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84.2 Definitions. 84.65 Conduct of examinations, inspections, 84.3 Respirators for mine rescue or other and tests by the Institute; assistance by emergency use in mines. applicant; observers; recorded data; public demonstrations. Subpart B—Application for Approval 84.66 Withdrawal of applications. 84.10 Application procedures. Subpart H—Self-Contained Breathing 84.11 Contents of application. Apparatus 84.12 Delivery of respirators and components by applicant; requirements. 84.70 Self-contained breathing apparatus; description. Subpart C—Fees 84.71 Self-contained breathing apparatus; required components. 84.20 Establishment of fees. 84.72 Breathing tubes; minimum require- 84.21 Fee calculation. ments. 84.22 Fee administration. 84.73 Harnesses; installation and construc- 84.23 Fee revision. tion; minimum requirements. 84.24 Authorization for additional examina- 84.74 Apparatus containers; minimum re- tions, inspections, tests, and fees. quirements. 84.75 Half-mask facepieces, full facepieces, Subpart D—Approval and Disapproval mouthpieces; fit; minimum requirements. 84.30 Certificates of approval; scope of ap- 84.76 Facepieces; eyepieces; minimum re- proval. quirements. 84.31 Certificates of approval; contents. 84.77 Inhalation and exhalation valves; min- 84.32 Notice of disapproval. imum requirements. 84.33 Approval labels and markings; ap- 84.78 Head harnesses; minimum require- proval of contents; use. ments. 84.34 Revocation of certificates of approval. 84.79 Breathing gas; minimum require- 84.35 Changes or modifications of approved ments. respirators; issuance of modification of 84.80 Interchangeability of oxygen and air certificate of approval. prohibited. 84.36 Delivery of changed or modified ap- 84.81 Compressed breathing gas and lique- proved respirator. fied breathing gas containers; minimum requirements. Subpart E—Quality Control 84.82 Gas pressure gages; minimum requirements. 84.40 Quality control plans; filing require- 84.83 Timers; elapsed time indicators; re- ments. maining service life indicators; minimum 84.41 Quality control plans; contents. requirements. 84.42 Proposed quality control plans; ap- 84.84 Hand-operated valves; minimum re- proval by the Institute. quirements. 84.43 Quality control records; review by the 84.85 Breathing bags; minimum require- Institute; revocation of approval. ments. 84.86 Component parts exposed to oxygen Subpart F—Classification of Approved Res- pressures; minimum requirements. pirators; Scope of Approval; Atmos- 84.87 Compressed gas filters; minimum re- pheric Hazards; Service Time quirements. 84.88 Breathing bag test. 84.50 Types of respirators to be approved; 84.89 Weight requirement. scope of approval. 84.90 Breathing resistance test; inhalation. 84.51 Entry and escape, or escape only; clas- 84.91 Breathing resistance test; exhalation. sification. 84.92 Exhalation valve leakage test. 84.52 Respiratory hazards; classification. 84.93 Gas flow test; open-circuit apparatus. 84.53 Service time; classification. 84.94 Gas flow test; closed-circuit apparatus. Subpart G—General Construction and 84.95 Service time test; open-circuit appa- Performance Requirements ratus. 84.96 Service time test; closed-circuit appa- 84.60 Construction and performance require- ratus. ments; general. 84.97 Test for carbon dioxide in inspired gas; 84.61 General construction requirements. open- and closed-circuit apparatus; max- 84.62 Component parts; minimum require- imum allowable limits. ments. 84.98 Tests during low temperature oper- 84.63 Test requirements; general. ation. 84.64 Pretesting by applicant; approval of 84.99 Man tests; testing conditions; general test methods. requirements.

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84.100 Man tests 1, 2, 3, and 4; requirements. 84.140 Air velocity and noise levels; hoods 84.101 Man test 5; requirements. and helmets; minimum requirements. 84.102 Man test 6; requirements. 84.141 Breathing gas; minimum require- 84.103 Man tests; performance requirements. ments. 84.104 Gas tightness test; minimum require- 84.142 Air supply source; hand-operated or ments. motor driven air blowers; Type A sup- TABLES TO SUBPART H OF PART 84 plied-air respirators; minimum requirements. Subpart I—Gas Masks 84.143 Terminal fittings or chambers; Type B supplied-air respirators; minimum re- 84.110 Gas masks; description. quirements. 84.111 Gas masks; required components. 84.144 Hand-operated blower test; minimum 84.112 Canisters and cartridges in parallel; requirements. resistance requirements. 84.145 Motor-operated blower test; min- 84.113 Canisters and cartridges; color and imum requirements. markings; requirements. 84.114 Filters used with canisters and car- 84.146 Method of measuring the power and tridges; location; replacement. torque required to operate blowers. 84.115 Breathing tubes; minimum require- 84.147 Type B supplied-air respirator; min- ments. imum requirements. 84.116 Harnesses; installation and construc- 84.148 Type C supplied-air respirator, con- tion; minimum requirements. tinuous-flow class; minimum require- 84.117 Gas mask containers; minimum re- ments. quirements. 84.149 Type C supplied-air respirator, de- 84.118 Half-mask facepieces, full facepieces, mand and pressure demand class; min- and mouthpieces; fit; minimum require- imum requirements. ments. 84.150 Air-supply line tests; minimum re- 84.119 Facepieces; eyepieces; minimum requirements. quirements. 84.151 Harness test; minimum requirements. 84.120 Inhalation and exhalation valves; 84.152 Breathing tube test; minimum re- minimum requirements. quirements. 84.121 Head harnesses; minimum require- 84.153 Airflow resistance test, Type A and ments. Type AE supplied-air respirators; min- 84.122 Breathing resistance test; minimum imum requirements. requirements. 84.154 Airflow resistance test; Type B and 84.123 Exhalation valve leakage test. Type BE supplied-air respirators; min- 84.124 Facepiece tests; minimum require- imum requirements. ments. 84.155 Airflow resistance test; Type C sup- 84.125 Particulate tests; canisters con- plied-air respirator, continuous flow taining particulate filters; minimum re- class and Type CE supplied-air res- quirements. pirator; minimum requirements. 84.126 Canister bench tests; minimum re- 84.156 Airflow resistance test; Type C sup- quirements. plied-air respirator, demand class; min- TABLES TO SUBPART I OF PART 84 imum requirements. 84.157 Airflow resistance test; Type C sup- Subpart J—Supplied-Air Respirators plied-air respirator, pressure-demand class; minimum requirements. 84.130 Supplied-air respirators; description. 84.158 Exhalation valve leakage test. 84.131 Supplied-air respirators; required 84.159 Man tests for gases and vapors; sup- components. plied-air respirators; general perform- 84.132 Breathing tubes; minimum require- ance requirements. ments. 84.160 Man test for gases and vapors; Type A 84.133 Harnesses; installation and construc- and Type AE respirators; test require- tion; minimum requirements. ments. 84.134 Respirator containers; minimum requirements. 84.161 Man tests for gases and vapors; Type 84.135 Half-mask facepieces, full facepieces, B and Type BE respirators; test require- hoods, and helmets; fit; minimum re- ments. quirements. 84.162 Man test for gases and vapors; Type C 84.136 Facepieces, hoods, and helmets; eye- respirators, continuous-flow class and pieces; minimum requirements. Type CE supplied-air respirators; test re- 84.137 Inhalation and exhalation valves; quirements. check valves; minimum requirements. 84.163 Man test for gases and vapors; Type C 84.138 Head harnesses; minimum require- supplied-air respirators, demand and ments. pressure-demand classes; test require- 84.139 Head and neck protection; supplied- ments. air respirators; minimum requirements. TABLES TO SUBPART J OF PART 84

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Subpart K—Air-Purifying Particulate 84.207 Bench tests; gas and vapor tests; min- Respirators imum requirements; general. TABLES TO SUBPART L OF PART 84 84.170 Air-purifying particulate respirators; description. Subpart M [Reserved] 84.171 Required components and attributes. 84.172 Airflow resistance test. Subpart N—Special Use Respirators 84.173 Exhalation valve leakage test. 84.174 Filter efficiency level determination 84.250 Vinyl chloride respirators; descrip- test—non-powered series N, R, and P fil- tion. tration. 84.251 Required components. 84.175 Instantaneous filter efficiency level 84.252 Gas masks; requirements and tests. determination test—PAPR series HE, 84.253 Chemical-cartridge respirators; re- PAPR100–N, and PAPR100–P filtration. quirements and tests. 84.176 Fit test—PAPR classes HE and 84.254 Powered air-purifying respirators; re- PAPR100. quirements and tests. 84.177 Total noise level test—PAPR classes 84.255 Requirements for end-of-service-life HE and PAPR100. indicator. 84.256 Quality control requirements. 84.178 Breath response type, airflow resist- 84.257 Labeling requirements. ance test—PAPR classes HE and PAPR100. Subpart O—Closed-Circuit Escape 84.179 Silica dust loading test—PAPR series HE filtration. Respirators 84.180 Particulate loading test—PAPR se- 84.300 Closed-circuit escape respirator; de- ries PAPR100–N and PAPR100–P filtra- scription. tion. 84.301 Applicability to new and previously 84.181 Communication performance test— approved CCERs. PAPR class PAPR100. 84.302 Required components, attributes, and instructions. Subpart L—Chemical Cartridge Respirators 84.303 General testing conditions and requirements. 84.190 Chemical cartridge respirators: de- 84.304 Capacity test requirements. scription. 84.305 Performance test requirements. 84.191 Chemical cartridge respirators; re- 84.306 Wearability test requirements. quired components. 84.307 Environmental treatments. 84.192 Cartridges in parallel; resistance re- 84.308 Additional testing. quirements. 84.309 Additional testing and requirements 84.193 Cartridges; color and markings; re- for dockable CCERs. quirements. 84.310 Post-approval testing. 84.194 Filters used with chemical cartridges; 84.311 Registration of CCER units upon pur- location; replacement. chase. 84.195 Breathing tubes; minimum requirements. Subparts P–JJ [Reserved] 84.196 Harnesses; installation and construction; minimum requirements. AUTHORITY: 29 U.S.C. 651 et seq.; 30 U.S.C. 3, 84.197 Respirator containers; minimum re- 5, 7, 811, 842(h), 844. quirements. 84.198 Half-mask facepieces, full facepieces, SOURCE: 60 FR 30355, June 8, 1995, unless mouthpieces, hoods, and helmets; fit; otherwise noted. minimum requirements. EDITORIAL NOTE: Nomenclature changes to 84.199 Facepieces, hoods, and helmets; eye- part 84 appear at 69 FR 18803, Apr. 9, 2004. pieces; minimum requirements. 84.200 Inhalation and exhalation valves; minimum requirements. Subpart A—General Provisions 84.201 Head harnesses; minimum requirements. § 84.1 Purpose. 84.202 Air velocity and noise levels; hoods The purpose of the regulations con- and helmets; minimum requirements. tained in this part 84 is: 84.203 Breathing resistance test; minimum (a) To establish procedures and pre- requirements. scribe requirements which must be met 84.204 Exhalation valve leakage test; min- in filing applications for approval by imum requirements. 84.205 Facepiece test; minimum require- the National Institute for Occupational ments. Safety and Health of respirators or 84.206 Particulate tests; respirators with fil- changes or modifications of approved ters; minimum requirements; general. respirators;

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(b) To establish a schedule of fees to dBA means sound pressure levels in be charged each applicant for the in- decibels, as measured with the A- spections, examinations, and testing weighted network of a standard sound conducted by the Institute under the level meter using slow response. provisions of this part; Dust means a solid mechanically pro- (c) To provide for the issuance of cer- duced particle with a size ranging from tificates of approval or modifications submicroscopic to macroscopic. of certificates of approval for res- A facepiece or mouthpiece is a respirators which have met the applicable pirator component designed to provide construction, performance, and res- a gas-tight or dust-tight fit with the piratory protection requirements set face and may include headbands, forth in this part; and valves, and connections for canisters, (d) To specify minimum require- cartridges, filters, or respirable gas ments and to prescribe methods to be source. employed by the Institute and by the Final inspection means that activity applicant in conducting inspections, carried out on a product after all man- examinations, and tests to determine ufacturing and assembly operations are the effectiveness of respirators used completed to insure completeness and during entry into or escape from haz- adherence to performance or other ardous atmospheres. specifications, including satisfactory appearance. § 84.2 Definitions. Fume means a solid condensation par- As used in this part— ticle, generally less than 1 micrometer Applicant means an individual, part- in diameter. nership, company, corporation, asso- Gas means an aeriform fluid which is ciation, or other organization that de- in a gaseous state at ordinary tempera- signs, manufactures, assembles, or con- ture and pressure. trols the assembly of a respirator and Hazardous atmosphere means: who seeks to obtain a certificate of ap- (1) Any atmosphere containing a proval for such respirator. toxic or disease producing gas, vapor, Approval means a certificate or for- dust, fume, mist, or pesticide, either mal document issued by the Institute immediately or not immediately dan- stating that an individual respirator or gerous to life or health; or combination of respirators has met the (2) Any oxygen-deficient atmosphere. minimum requirements of this part, A hood or helmet is a respirator com- and that the applicant is authorized to ponent which covers the wearer’s head use and attach an approval label to any and neck, or head, neck, and shoulders, respirator, respirator container, or in- and is supplied with incoming res- struction card for any respirator manu- pirable air for the wearer to breathe. It factured or assembled in conformance may include a headharness and connec- with the plans and specifications upon tion for a breathing tube. which the approval was based, as evi- Immediately dangerous to life or health dence of such approval. means conditions that pose an imme- Approved means conforming to the diate threat to life or health or condi- minimum requirements of this part. tions that pose an immediate threat of Auxiliary equipment means a self-con- severe exposure to contaminants, such tained breathing apparatus, the use of as radioactive materials, which are which is limited in underground mine likely to have adverse cumulative or rescue and recovery operations to situ- delayed effects on health. ations where the wearer has ready ac- Incoming inspection means the activ- cess to fresh air and at least one crew ity of receiving, examining, and ac- equipped with approved self-contained cepting only those materials and parts breathing apparatus of 2 hours or whose quality conforms to specifica- longer rating, is in reserve at a fresh- tion requirements. air base. In-process inspection means the con- Compressed-breathing gas means oxy- trol of products at the source of pro- gen or air stored in a compressed state duction and at each step of the manu- and supplied to the wearer in gaseous facturing process, so that departures form. from specifications can be corrected

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before defective components or mate- protection against inhalation of a haz- rials are assembled into the finished ardous atmosphere. product. Respirators for entry into and escape Institute or NIOSH means the Na- from means respiratory devices pro- tional Institute for Occupational Safe- viding protection during entry into and ty and Health, Department of Health escape from hazardous atmospheres. and Human Services. Respirators for escape only means res- Liquefied-breathing gas means oxygen piratory devices providing protection or air stored in liquid form and sup- only during escape from hazardous plied to the wearer in a gaseous form. atmospheres. Loose fitting means respiratory inlet Respiratory inlet covering means that covering that covers the wearer’s head portion of a respirator that forms the and neck, or head, neck, and shoulders, protective barrier between the user’s or whole body (when integral to the de- respiratory tract and an air-purifying sign). device or breathing air source, or both. Mist means a liquid condensation par- (Single-use respirator means a res- ticle with a size ranging from sub- pirator that is entirely discarded after microscopic to macroscopic. excessive resistance, sorbent exhaus- MSHA means the Mine Safety and tion, or physical damage renders it un- Health Administration, U.S. Depart- suitable for further use. ment of Labor. Tight fitting means a respiratory inlet National Personal Protective Tech- covering that forms a complete gas nology Laboratory (NPPTL) means the tight or dust tight seal with the face or National Personal Protective Tech- nology Laboratory, National Institute neck. for Occupational Safety and Health Vapor means the gaseous state of a (NIOSH), Centers for Disease Control substance that is solid or liquid at or- and Prevention, Department of Health dinary temperature and pressure. and Human Services, P.O. Box 18070, 626 Warning device is a component of a Cochrans Mill Road, Pittsburgh, PA respiratory protective device that in- 15236. NPPTL administers the NIOSH forms the wearer to take some action. conformity assessment program for [60 FR 30355, June 8, 1995, as amended at 80 respiratory protective devices, replac- FR 3906, Jan. 26, 2015; 85 FR 20607, Apr. 14, ing the former Certification and Qual- 2020] ity Assurance Branch within the Divi- sion of Safety Research, Appalachian § 84.3 Respirators for mine rescue or Laboratory for Occupational Safety other emergency use in mines. and Health, NIOSH. (a)(1) NIOSH and the Mine Safety and Not immediately dangerous to life or Health Administration (MSHA), U.S. health means any hazardous atmosphere which may produce physical dis- Department of Labor, shall jointly re- comfort immediately, chronic poi- view and issue certifications for res- soning after repeated exposure, or pirators used for mine emergencies and acute adverse physiological symptoms mine rescue, including any associated after prolonged exposure. service-life plans, users’ manuals and Oxygen-deficient atmosphere means an other supporting documentation. atmosphere which contains an oxygen (2) Each certification for a respirator partial pressure of less than 148 milli- designed for mine rescue or other meters of mercury (19.5 percent by vol- emergency use in mines shall include, ume at sea level). as a condition of approval, any use lim- Powered air-purifying respirator means itations related to mine safety and a device equipped with a facepiece, health. hood, or helmet, breathing tube, can- (b) NIOSH and MSHA shall jointly ister, cartridge, filter, canister with determine appropriate recall and ret- filter, or cartridge with filter, and a rofit remedies for field complaints or blower. identified deficiencies involving any Respirator means any device designed respirators used in the mining environ- to provide the wearer with respiratory ment.

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Subpart B—Application for struction of the respirator and of the Approval materials used. (b) Drawings shall be titled, num- § 84.10 Application procedures. bered, and dated; any revision dates shall be shown on the drawings, and (a) Inspection, examination, and test- the purpose of each revision being ing leading to the approval of the types sought shall be shown on the drawing of respirators classified in subpart F of or described on an attachment to the this part shall be undertaken by the In- drawing to which it applies. stitute only pursuant to written appli- (c) Each application for approval cations which meet the minimum re- shall contain a proposed plan for qual- quirements set forth in this subpart B. ity control which meets the minimum (b) Applications must be submitted requirements set forth in subpart E of in accordance with the Standard Appli- this part. cation Procedure for the Certification of (d) Each application shall contain a Respirators under 42 CFR 84, (Standard statement that the respirator has been Application Procedure) available on the pretested by the applicant as pre- NPPTL Web site, to Records Room, Na- scribed in § 84.64, and shall include the tional Personal Protective Technology results of such tests. Laboratory, P.O. Box 18070, 626 Coch- (e) Each application for approval rans Mill Road, Pittsburgh, PA 15236. shall contain a statement that the res- (c) Except as provided in § 84.64, the pirator and component parts submitted examination, inspection, and testing of for approval are either prototypes, or all respirators will be conducted or made on regular production tooling, caused to be conducted by the National with no operation included which will Personal Protective Technology Lab- not be incorporated in regular produc- oratory. tion processing. (d) Applicants, manufacturers, or their representatives may visit or com- (The information collections contained in municate with the National Personal this section are approved under OMB control Protective Technology Laboratory in number 0920–0109) order to discuss the requirements for § 84.12 Delivery of respirators and approval of any respirator or the pro- components by applicant; require- posed designs thereof. No charge will ments. be made for such consultation and no (a) Each applicant shall, when an ap- written report will be issued to appli- plication is filed pursuant to § 84.10, be cants, manufacturers, or their rep- advised by the Institute of the total resentatives by the Institute as a re- number of respirators and component sult of such consultation. parts required for testing. (e) Respirators having electrical or (b) The applicant will deliver, at his electronic components that are re- or her own expense, the number of quired to be permissible under chapter completely assembled respirators and I of title 30 shall be tested in accord- component parts required for their ex- ance with 30 CFR part 18. Applications amination, inspection, and testing, to for approval of such respirators by the National Personal Protective Tech- MSHA shall be submitted in writing to: nology Laboratory. MSHA, Approval and Certification Cen- (c) Respirators and component parts ter, Box 251, Industrial Park Road, submitted for approval must be made Triadelphia, West Virginia 26059. from materials specified in the applica- [60 FR 30355, June 8, 1995, as amended at 80 tion. FR 3906, Jan. 26, 2015] (d) One completely assembled respirator approved under the provisions § 84.11 Contents of application. of this part may be retained by the In- (a) Each application for approval stitute as a laboratory exhibit, the re- shall contain a complete written de- maining respirators may be returned to scription of the respirator for which the applicant at his own expense, upon approval is requested together with written request within 30 days after no- drawings and specifications (and lists tice of approval. If no such request is thereof) showing full details of con- made, the respirators will be disposed

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of by the Institute in such manner as it (3) Site qualification. Initial review deems appropriate. and approval, as specified under 42 CFR (e) Where a respirator fails to meet part 84 subpart E—Quality Control, of the requirements for approval set forth manufacturing facilities that may be in this part, all respirators and compo- used to manufacture respirators, prin- nents delivered in accordance with this cipal components, and/or subassem- section may be returned to the appli- blies; cant at his own expense, upon written (4) Quality assurance maintenance. request within 30 days after notice of Quality site audits to verify conform- disapproval. If no such request is made, ance to the requirements of §§ 84.33, the respirators will be disposed of by 84.40, 84.41, 84.42, 84.43; and the Institute in such manner as it (5) Maintenance of product perform- deems appropriate. ance. Product audits to verify the performance of commercially available [60 FR 30355, June 8, 1995, as amended at 80 respirators which have been granted a FR 3906, Jan. 26, 2015] NIOSH certificate of approval. (c) Fees will not be charged for: Subpart C—Fees (1) Technical assistance not related to application processing; SOURCE: 80 FR 3906, Jan. 26, 2015, unless (2) Technical programs including de- otherwise noted. velopment of new technology programs; § 84.20 Establishment of fees. (3) Participation in research; and (4) Regulatory review activities, in- (a) This section establishes a system cluding participation in the develop- under which NIOSH charges a fee for ment of health and safety standards, services provided to applicants for con- regulations, and legislation. formity assessment activities conducted by NIOSH for respiratory pro- § 84.21 Fee calculation. tective devices under 42 CFR part 84. (a) This section explains the process This section specifies the purposes for NIOSH uses to calculate estimates of which fees will be assessed and the cost the direct and indirect costs of services factors for such assessments. provided in the course of application (b) Fees will be charged for: processing. (1) Respirator certification application, (b) Upon completion of an initial ad- approval, approval modification, records ministrative review of the application, maintenance, and testing. Application NIOSH will calculate a fee estimate for processing under this Part by engi- each application, including the max- neers, technicians and other special- imum cost of conducting additional ists, including administrative review of tests under § 84.24, and will provide that applications, analysis of drawings, estimate, with payment details, to the technical evaluation, testing, test set applicant. The fee estimate will be de- up and tear down, and consultation on rived using the current schedules of applications, clerical services, com- fees published by NIOSH in Part 84. puter tracking and status reporting, NIOSH will begin the technical evalua- records control and security, and docu- tion once the applicant accepts the ment preparation directly supporting terms of the fee estimate and author- application processing. This fee also izes payment. contributes to a proportionate share of (c) If NIOSH determines that actual management, administration and oper- costs for application processing and re- ation of the NIOSH National Personal lated testing will exceed the fee esti- Protective Technology Laboratory; mate provided to the applicant, NIOSH (2) Maintenance of testing and approval will provide a revised fee estimate for facilities and test equipment. Amortiza- completing the application review be- tion of facility improvements and de- fore exceeding the previously-author- preciation of buildings and equipment ized fees. The applicant will have the used for testing and evaluation or oth- option of either withdrawing the appli- erwise directly associated with applica- cation and paying for services already tion processing; performed or authorizing payment of

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the revised estimate, in which case (c) The current fee schedules will be NIOSH will continue the application published in Appendix A and Appendix review and testing. B of this part and will remain in effect (d) If the actual cost of processing until the effective date of the new fee the application is less than the fee esti- schedules published in the FEDERAL mate NIOSH provided to the applicant, REGISTER. NIOSH will charge the actual cost. (e) If the applicant withdraws an ap- § 84.24 Authorization for additional ex- plication, the applicant will be aminations, inspections, tests, and invoiced for services already performed fees. by NIOSH. Withdrawal of an applica- NIOSH will conduct or cause to be tion will be effective on the first busi- conducted any additional examina- ness day following the date NIOSH re- tions, inspections, or tests it deems ceives a withdrawal notice from the ap- necessary to determine the quality and plicant in writing. Withdrawal notices effectiveness of any respirator sub- will be submitted to NIOSH in accord- mitted to NIOSH for the purposes of ance with the Standard Application Pro- seeking a certificate of approval. The cedure using the address specified in § 84.10. costs of such examinations, inspections, or tests will be paid by the appli- § 84.22 Fee administration. cant prior to issuance of a certificate of approval for the subject respirator. (a) Applicants will be invoiced for all fees incurred in the processing of an application when all required reviews, Subpart D—Approval and analyses, evaluations, and tests are Disapproval completed or the application is with- drawn. Invoices will contain specific § 84.30 Certificates of approval; scope payment instructions and identify au- of approval. thorized methods of payment. (a) The Institute shall issue certifi- (b) Applicants who hold active and/or cates of approval pursuant to the pro- obsolete certificates of approval will be visions of this subpart only for indi- invoiced by NIOSH annually for appli- vidual, completely assembled res- cable maintenance fees, in accordance pirators which have been examined, in- with the fee schedule published in Ap- spected, and tested, and which meet pendix A of this part. the minimum requirements set forth in (c) NIOSH reserves the right to im- subparts H through L of this part, as pose sanctions for any missed payment, applicable. and will administer such penalties (b) The Institute will not issue cer- after assessing the circumstances of tificates of approval for any respirator the manufacturer and the needs of component or for any respirator sub- other stakeholders. Sanctions may include but are not limited to: assembly. (1) Refusal to accept future applica- (c) The Institute shall not issue an tions for approval; informal notification of approval. How- (2) Stop-sale of all approved product; ever, if the application for approval, and submitted in accordance with § 84.11, (3) Engaging appropriate government states that the submitted respirator authorities to initiate debt collection and component parts are only proto- procedures for the unpaid fees. types, the Institute will examine, inspect, and test such respirator and § 84.23 Fee revision. component parts in accordance with (a) Each fee schedule will remain in the provisions of this part. If, upon effect for at least 2 years and will be completion of such examinations, in- revised as needed to reflect cost inspections and tests, it is found that the creases identified in biennial reviews. prototype meets the minimum require- (b) Fee schedule updates will be pro- ments set forth in this part, the Insti- posed in a notice of proposed rule- tute may inform the applicant, in writ- making published in the FEDERAL REG- ing, of the results of the examinations, ISTER. inspections, and tests, and may require

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him to resubmit respirators and com- § 84.32 Notice of disapproval. ponent parts made on regular produc- (a) If, upon the completion of the ex- tion tooling, with no operations in- aminations, inspections, and tests re- cluded which will not be incorporated quired to be conducted in accordance in regular production processing, for with the provisions of this part, it is further examination, inspection, and found that the respirator does not meet testing, prior to issuance of the certifi- the minimum requirements set forth in cate of approval. this part, the Institute shall issue a (d) Applicants required to resubmit written notice of disapproval to the ap- respirators and component parts made plicant. on regular production tooling, with no (b) Each notice of disapproval shall operation included which will not be be accompanied by all pertinent data incorporated in regular production or findings with respect to the defects processing, shall be charged fees in ac- of the respirator for which approval cordance with subpart C of this part. was sought with a view to the possible correction of any such defects. § 84.31 Certificates of approval; con- (c) The Institute shall not disclose, tents. except to the applicant or as required by statute or regulation, any data, (a) The certificate of approval shall findings, or other information with re- contain a classification and a descrip- spect to any respirator for which a no- tion of the respirator or combination of tice of disapproval is issued. respirators for which it is issued, as provided in this part. § 84.33 Approval labels and markings; (b) The certificate of approval shall approval of contents; use. specifically set forth any restrictions (a) Full-scale reproductions of ap- or limitations on the respirator’s use proval labels and markings, and a in hazardous atmospheres. sketch or description of the method of (c) Each certificate of approval shall application and position on the har- be accompanied by the drawings and ness, container, canister, cartridge, fil- specifications (and lists thereof) sub- ter, or other component, together with mitted by the applicant in accordance instructions for the use and maintenance of the respirator shall be sub- with § 84.11. These drawings and speci- mitted to the Institute for approval. fications shall be referenced in the cer- (b) Approval labels shall bear the em- tificate of approval, and shall be main- blem of the National Institute for Oc- tained by the applicant. The drawings cupational Safety and Health and the and specifications listed in each certifi- seal of the Department of Health and cate of approval shall set forth in de- Human Services, the applicant’s name tail the design and construction re- and address, an approval number as- quirements which shall be met by the signed by the Institute and, where ap- applicant during commercial produc- propriate, restrictions or limitations tion of the respirator. placed upon the use of the respirator (d) Each certificate of approval shall by the Institute. The approval number be accompanied by a reproduction of assigned by the Institute shall be des- the approval label design to be em- ignated by the prefix TC and a serial ployed by the applicant with each ap- number. proved respirator, as provided in § 84.33. (c) The Institute shall, where nec- (e) No test data or specific laboratory essary, notify the applicant when addi- findings will accompany any certifi- tional labels, markings, or instructions cate of approval, however, the Institute will be required. will release pertinent test data and (d) Approval labels and markings shall only be used by the applicant to specific findings upon written request whom they were issued. by the applicant, or as required by (e) Legible reproductions or abbre- statute or regulation. viated forms of the label approved by (f) Each certificate of approval shall the Institute for use on each respirator also contain the approved quality con- shall be attached to or printed at the trol plan as specified in § 84.42. following locations:

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Respirator type Label type Location

Self-contained breathing appa- Entire ...... Harness assembly and canister (where applicable). ratus. Gas mask ...... Entire ...... Mask container and canister. Supplied air respirator ...... do ...... Respirator container or instruction card. Particulate respirator ...... do ...... Respirator container and filter container. Abbreviated ...... Filters. Chemical-cartridge respirator ... Entire ...... Respirator container, cartridge container, and filter containers (where applicable). Abbreviated ...... Cartridges and filters and filter containers.

(f) The use of any Institute approval (b) Applications shall be submitted as label obligates the applicant to whom for an original certificate of approval, it is issued to maintain or cause to be with a request for a modification of the maintained the approved quality con- existing certificate to cover any pro- trol sampling schedule and the accept- posed change. able quality level for each char- (c) The application shall be accom- acteristic tested, and to assure that it panied by appropriate drawings and is manufactured according to the draw- specifications, and by a proposed qual- ings and specifications upon which the ity control plan which meets the re- certificate of approval is based. quirements of subpart E of this part. (g) Each respirator, respirator com- (d) The application for modification, ponent, and respirator container shall, together with the accompanying mate- as required by the Institute to assure rial, shall be examined by the Institute quality control and proper use of the to determine whether testing will be respirator, be labeled distinctly to required. show the name of the applicant, and (e) The Institute shall inform the ap- the name and letters or numbers by plicant of the fee required for any addi- which the respirator or respirator com- tional testing and the applicant will be ponent is designated for trade purposes, and the lot number, serial num- charged for the actual cost of any ex- ber, or approximate date of manufac- amination, inspection, or test required, ture. and such fees shall be submitted in accordance with the provisions of subpart § 84.34 Revocation of certificates of ap- C of this part. proval. (f) If the proposed change or modi- The Institute reserves the right to fication meets the requirements of this revoke, for cause, any certificate of ap- part, a formal certificate of modifica- proval issued pursuant to the provi- tion will be issued, accompanied, where sions of this part. Such causes include, necessary, by a list of new and revised but are not limited to, misuse of ap- drawings and specifications covering proval labels and markings, misleading the change(s) and reproductions of re- advertising, and failure to maintain or vised approval labels. cause to be maintained the quality (The information collections contained in control requirements of the certificate this section are approved under OMB control of approval. number 0920–0109)

§ 84.35 Changes or modifications of ap- § 84.36 Delivery of changed or modi- proved respirators; issuance of fied approved respirator. modification of certificate of approval. An approved respirator for which a formal certificate of modification has (a) Each applicant may, if he desires been issued shall be delivered, with to change any feature of an approved proper markings and containers, by the respirator, request a modification of applicant to the National Personal the original certificate of approval Protective Technology Laboratory, as issued by the Institute for such respirator by filing an application for soon as it is commercially produced. such modification in accordance with [60 FR 30355, June 8, 1995, as amended at 80 the provisions of this section. FR 3907, Jan. 26, 2015]

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Subpart E—Quality Control Order Desk, 700 Robbins Avenue, Bldg. 4D, Philadelphia, PA 19111–5094. Copies § 84.40 Quality control plans; filing re- may be inspected at the NIOSH, Na- quirements. tional Personal Protective Technology As a part of each application for ap- Laboratory, P.O. Box 18070, 626 Coch- proval or modification of approval sub- rans Mill Road, Pittsburgh, PA 15236, mitted pursuant to this part, each ap- or at the National Archives and plicant shall file with the Institute a Records Administration (NARA). For proposed quality control plan which information on the availability of this shall be designed to assure the quality material at NARA, call 202–741–6030, or of respiratory protection provided by go to: http://www.archives.gov/fed- the respirator for which approval is erallregister/ sought. codeloflfederallregulations/ ibrllocations.html. Copies of MIL-STD- § 84.41 Quality control plans; contents. 105D may be inspected or obtained from (a) Each quality control plan shall the NIOSH, National Personal Protec- contain provisions for the management tive Technology Laboratory, P.O. Box of quality, including: 18070, 626 Cochrans Mill Road, Pitts- (1) Requirements for the production burgh, PA 15236. Incoming bulk raw of quality data and the use of quality material inspection or verification of control records; specification, and in-process inspection (2) Control of engineering drawings, shall be sufficient to ensure control of documentations, and changes; product quality through the manufac- (3) Control and calibration of meas- turing cycle. uring and test equipment; (c) The sampling procedure shall in- (4) Control of purchased material to clude a list of the characteristics to be include incoming inspection; tested by the applicant or his agent. (5) Lot identification, control of (d) The characteristics listed in ac- processes, manufacturing, fabrication, cordance with paragraph (c) of this sec- and assembly work conducted in the tion shall be classified according to the applicant’s plant; potential effect of such defect and (6) Audit of final inspection of the grouped into the following classes: completed product; and (1) Critical. A defect that judgment (7) The organizational structure nec- and experience indicate is likely to re- essary to carry out these provisions. sult in a condition immediately haz- (b) Each provision for incoming and ardous to life or health for individuals final inspection in the quality control using or depending upon the respirator; plan shall include a procedure for the (2) Major A. A defect, other than crit- selection of a sample of respirators and ical, that is likely to result in failure the components thereof for testing, in to the degree that the respirator does accordance with procedures set forth in not provide any respiratory protection, Military Standard MIL-STD-414, 11 or a defect that reduces protection and June 1957, including Change Notice No. is not detectable by the user; 1, ‘‘Sampling Procedures and Tables for (3) Major B. A defect, other than Inspection by Variables for Percent De- Major A or critical, that is likely to re- fective,’’ or an approved equivalent sult in reduced respiratory protection, sampling procedure, or an approved and is detectable by the user; and combination of sampling procedures. (4) Minor. A defect that is not likely The procedure of Military Standard to materially reduce the usability of MIL-STD-105D, 29 April 1963, ‘‘Sam- the respirator for its intended purpose, pling Procedures and Tables for Inspec- or a defect that is a departure from es- tion by Attributes,’’ is an example of tablished standards and has little bear- an equivalent sampling procedure. ing on the effective use or operation of MIL-STD-414 is incorporated by ref- the respirator. erence and has been approved by the (e) The quality control inspection Director of the Federal Register in ac- test method to be used by the applicant cordance with 5 U.S.C. 552(a) and 1 CFR or his agent for each characteristic re- part 51. Copies may be obtained from quired to be tested shall be described in DODSSP, Standardization Document detail.

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(f) Each item manufactured shall be (c) Approved quality control plans 100 percent inspected for defects in all shall constitute a part of and be incor- critical characteristics and all defec- porated into any certificate of approval tive items shall be rejected. issued by the Institute, and compliance (g) The Acceptable Quality Level with such plans by the applicant shall (AQL) for each major or minor defect be a condition of approval. so classified by the applicant shall be: (1) Major A. 1.0 percent; § 84.43 Quality control records; review (2) Major B. 2.5 percent; and by the Institute; revocation of ap- (3) Minor. 4.0 percent. proval. (h) Except as provided in paragraph (a) The applicant shall keep quality (i) of this section, inspection level IV control inspection records sufficient to as described in MIL-STD-414, 11 June carry out the procedures required in 1957, including Change Notice No.1, MIL-STD-414, 11 June 1957, including ‘‘Sampling Procedures and Tables for Change Notice No. 1, ‘‘Sampling Proce- Inspection by Variables for Percent De- fective,’’ or an equivalent procedure, dures and Tables for Inspection by shall be used for major and minor char- Variables for Percent Defective,’’ or an acteristics and 100 percent inspection approved equivalent sampling proce- for critical characteristics. Inspection dure. MIL-STD-105D, 29 April 1963, level II as described in MIL-STD-105D, ‘‘Sampling Procedures and Tables for 29 April 1963, ‘‘Sampling Procedures Inspection by Attributes,’’ is an exam- and Tables for Inspection by At- ple of an approved equivalent sampling tributes,’’ is an example of an equiva- procedure. MIL-STD-414 is incor- lent procedure. porated by reference and has been ap- (i) Subject to the approval of the In- proved by the Director of the Federal stitute, where the quality control plan Register in accordance with 5 U.S.C. provisions for raw material, processes, 552(a) and 1 CFR part 51. Copies may be manufacturing, and fabrication, in- obtained from DODSSP, Standardiza- spections are adequate to ensure con- tion Document Order Desk, 700 Robbins trol of finished article quality, destruc- Avenue, Bldg. 4D, Philadelphia, Pa. tive testing of finished articles may be 19111–5094. Copies may be inspected at conducted at a lower level of inspec- the NIOSH, National Personal Protec- tion than that specified in paragraph tive Technology Laboratory, P.O. Box (h) of this section. 18070, 626 Cochrans Mill Road, Pitts- burgh, PA 15236, or at the National Ar- (The information collections contained in this section are approved under OMB control chives and Records Administration number 0920–0109) (NARA). For information on the availability of this material at NARA, call [60 FR 30355, June 8, 1995, as amended at 80 202–741–6030, or go to: http:// FR 3907, Jan. 26, 2015] www.archives.gov/federallregister/ § 84.42 Proposed quality control plans; codeloflfederallregulations/ approval by the Institute. ibrllocations.html. Copies of MIL-STD- (a) Each proposed quality control 105D may be inspected or obtained from plan submitted in accordance with this the NIOSH, National Personal Protec- subpart shall be reviewed by the Insti- tive Technology Laboratory, P.O. Box tute to determine its effectiveness in 18070, 626 Cochrans Mill Road, Pitts- ensuring the quality of respiratory pro- burgh, PA 15236. tection provided by the respirator for (b) The Institute reserves the right to which an approval is sought. have its representatives inspect the ap- (b) If the Institute determines that plicant’s quality control test methods, the proposed quality control plan sub- equipment, and records, and to inter- mitted by the applicant will not ensure view any employee or agent of the ap- adequate quality control, the Institute plicant in regard to quality control shall require the applicant to modify test methods, equipment, and records. the procedures and testing require- (c) The Institute reserves the right to ments of the plan prior to approval of revoke, for cause, any certificate of ap- the plan and issuance of any certificate proval where it is found that the appli- of approval. cant’s quality control test methods,

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equipment, or records do not ensure ef- use during the following prescribed fective quality control over the res- service times: pirator for which the approval was (1) Four hours; issued. (2) Three hours; (The information collections contained in (3) Two hours; this section are approved under OMB control (4) One hour; number 0920–0109) (5) Forty-five minutes; [60 FR 30355, June 8, 1995, as amended at 80 (6) Thirty minutes; FR 3907, Jan. 26, 2015] (7) Fifteen minutes; (8) Ten minutes; Subpart F—Classification of Ap- (9) Five minutes; or (10) Three minutes. proved Respirators; Scope of (b) Other service times may be pre- Approval; Atmospheric Haz- scribed by the Institute. ards; Service Time § 84.50 Types of respirators to be ap- Subpart G—General Construction proved; scope of approval. and Performance Requirements Approvals shall be issued for the § 84.60 Construction and performance types of respirators which have been requirements; general. classified pursuant to this subpart F, have been inspected, examined and (a) The Institute shall issue approv- tested by the Institute, in accordance als for the types of respirators de- with the provisions of subparts G scribed in subparts H through O of this through L of this part, and have been part which have met the minimum re- found to provide respiratory protection quirements set forth for such res- for fixed periods of time against the pirators in this part. hazards specified in such approval. (b) In addition to the types of respirators specified in subparts H § 84.51 Entry and escape, or escape through L of this part, the Institute only; classification. shall issue approvals for other res- Respirators described in subparts H piratory protective devices not specifi- through L of this part shall be classi- cally described in this part subject to fied for use as follows: such additional requirements as may (a) Entry and escape. Respirators de- be imposed in accordance with signed and approved for use during § 84.63(c). entry into a hazardous atmosphere, [60 FR 30355, June 8, 1995, as amended at 77 and for escape from a hazardous atmos- FR 14192, Mar. 8, 2012; 85 FR 20607, Apr. 14, phere; or 2020] (b) Escape only. Respirators designed and approved for use only during es- § 84.61 General construction require- cape from a hazardous atmosphere. ments. (a) Respirators will not be accepted § 84.52 Respiratory hazards; classifica- by the Institute for examination, in- tion. spection and testing unless they are de- Respirators described in subparts H signed on sound engineering and sci- through L of this part shall be classi- entific principles, constructed of suit- fied as approved for use against any or able materials and evidence good work- all of the following respiratory haz- manship. ards: (b) Respirator components which (a) Oxygen deficiency; come into contact with the wearer’s (b) Gases and vapors; and skin shall be made of nonirritating ma- (c) Particles, including dusts, fumes terials. and mists. (c) Components replaced during or after use shall be constructed of mate- § 84.53 Service time; classification. rials which will not be damaged by nor- (a) Respirators described in subparts mal handling. H through L of this part shall be classi- (d) Mouthpieces, hoods, helmets, and fied, where applicable, as approved for facepieces, except those employed in

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single-use respirators, shall be con- generally the reasons for such require- structed of materials which will with- ments, examinations, inspections, or stand repeated disinfection as rec- tests. ommended by the applicant in his instructions for use of the device. [60 FR 30355, June 8, 1995, as amended at 77 FR 14192, Mar. 8, 2012; 85 FR 20607, Apr. 14, 2020] § 84.62 Component parts; minimum requirements. § 84.64 Pretesting by applicant; ap- (a) The component parts of each res- proval of test methods. pirator shall be: (a) Prior to making or filing any ap- (1) Designed, constructed, and fitted plication for approval or modification to insure against creation of any haz- of approval, the applicant shall con- ard to the wearer; duct, or cause to be conducted, exami- (2) Assembled to permit easy access nations, inspections, and tests of res- for inspection and repair of functional pirator performance which are equal to parts; and or exceed the severity of those pre- (3) Assembled to permit easy access scribed in this part. to parts which require periodic cleaning and disinfecting. (b) With the application, the appli- (b) Replacement parts shall be de- cant shall provide a statement to the signed and constructed to permit easy Institute showing the types and results installation and to maintain the effec- of the examinations, inspections, and tiveness of the respirator. tests required under paragraph (a) of this section and state that the res- § 84.63 Test requirements; general. pirator meets the minimum require- (a) Each respirator and respirator ments of subparts H through O of this component shall when tested by the ap- part, as applicable. Complete examina- plicant and by the Institute, and meet tion, inspection, and test data shall be the applicable requirements set forth retained on file by the applicant and be in subparts H through O of this part. submitted, upon request, to the Insti- (b) Where a combination respirator is tute. assembled from two or more types of (c) The Institute may, upon written respirators, as described in this part, request by the applicant, provide draw- each of the individual respirator types ings and descriptions of its test equip- which have been combined shall, as ap- ment and otherwise assist the appli- plicable, meet the minimum require- cant in establishing a test laboratory ments for such respirators set forth in or securing the services of a testing subparts H through O of this part, and agency. such combination respirators, except (d) No approval will be issued until as specified in § 84.70(b)(2), will be clas- the Institute has validated the appli- sified by the type of respirator in the cant’s test results. combination which provides the least [60 FR 30355, June 8, 1995, as amended at 77 protection to the user. FR 14193, Mar. 8, 2012; 85 FR 20607, Apr. 14, (c) In addition to the minimum re- 2020] quirements set forth in subparts H through O of this part, the Institute re- § 84.65 Conduct of examinations, in- serves the right to require, as a further spections, and tests by the Institute; condition of approval, any additional assistance by applicant; observers; requirements deemed necessary to es- recorded data; public demonstrations. tablish the quality, effectiveness, and safety of any respirator used as protec- (a) All examinations, inspections, tion against hazardous atmospheres. and tests conducted pursuant to sub- (d) Where it is determined after re- parts H through O of this part will be ceipt of an application that additional under the sole direction and control of requirements will be required for ap- the Institute. proval, the Institute will notify the ap- (b) The Institute may, as a condition plicant in writing of these additional of approval, require the assistance of requirements, and necessary examina- the applicant or agents of the applicant tions, inspections, or tests, stating during the assembly, disassembly, or

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preparation of any respirator or res- (1) Closed-circuit apparatus. An appa- pirator component prior to testing or ratus of the type in which the exhala- in the operation of such equipment tion is rebreathed by the wearer after during testing. the carbon dioxide has been effectively (c) Only Institute personnel, persons removed and a suitable oxygen con- assisting the Institute pursuant to centration restored from sources com- paragraph (b) of this section, and such posed of: other persons as are requested by the (i) Compressed oxygen; or Institute or the applicant to be observ- (ii) Chemical oxygen; or ers, shall be present during any exam- (iii) Liquid-oxygen. ination, inspection, or test conducted (2) Open-circuit apparatus. An appa- prior to the issuance of an approval by ratus of the following types from which the Institute for the equipment under exhalation is vented to the atmosphere consideration. and not rebreathed: (d) The Institute shall hold as con- (i) Demand-type apparatus. An appa- fidential any analyses, drawings, speci- ratus in which the pressure inside the fications, or materials submitted by facepiece in relation to the immediate the applicant and shall not disclose environment is positive during exhala- any principles or patentable features of tion and negative during inhalation; or such equipment, except as required by (ii) Pressure-demand-type apparatus. statute or regulation. An apparatus in which the pressure in- (e) As a condition of each approval side the facepiece in relation to the im- issued for any respirator, the Institute mediate environment is positive during reserves the right, following the both inhalation and exhalation. issuance of such approval, to conduct such public tests and demonstrations (b) The following respirators may be of the approved respiratory equipment classified as designed and approved for as is deemed appropriate. use during emergency entry into a hazardous atmosphere: [60 FR 30355, June 8, 1995, as amended at 77 (1) A combination respirator which FR 14193, Mar. 8, 2012; 85 FR 20607, Apr. 14, includes a self-contained breathing ap- 2020] paratus; and § 84.66 Withdrawal of applications. (2) A Type ‘‘C’’ or Type ‘‘CE’’ supplied air respirator, where— (a) Any applicant may, upon a writ- (i) The self-contained breathing appa- ten request submitted to the Institute, ratus is classified for 3-, 5-, or 10- withdraw any application for approval minute service time and the air line of any respirator. supply is used during entry; or (b) Upon the receipt of a written re- (ii) The self-contained breathing ap- quest from the applicant for the with- paratus is classified for 15 minutes or drawal of an application, NIOSH will longer service time and not more than invoice the applicant based on the fee 20 percent of the rated capacity of the calculated, as specified under § 84.21(e). air supply is used during entry. [60 FR 30355, June 8, 1995, as amended at 80 (c) Self-contained breathing appa- FR 3907, Jan. 26, 2015] ratus classified for less than 1 hour service time will not be approved for Subpart H—Self-Contained use during underground mine rescue Breathing Apparatus and recovery operations except as auxiliary equipment. § 84.70 Self-contained breathing appa- (d) Self-contained breathing apparatus; description. ratus classified for less than 30 min- (a) Self-contained breathing appa- utes’ service time will not be approved ratus, including all completely assem- for use as auxiliary equipment during bled, portable, self-contained devices underground mine rescue and recovery designed for use as respiratory protec- operations. tion during entry into and escape from [60 FR 30355, June 8, 1995, as amended at 77 or escape only from hazardous FR 14193, Mar. 8, 2012; 84 FR 16412, Apr. 19, atmospheres, are described as follows: 2019]

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§ 84.71 Self-contained breathing appa- § 84.74 Apparatus containers; min- ratus; required components. imum requirements. (a) Each self-contained breathing ap- (a) Apparatus may be equipped with a paratus described in § 84.70 shall, where substantial, durable container bearing its design requires, contain the fol- markings which show the applicant’s lowing component parts: name, the type and commercial des- (1) Facepiece or mouthpiece, and ignation of the respirator it contains, noseclip; and all appropriate approval labels. (2) Respirable breathing gas con- (b) Containers supplied by the appli- tainer; cant for carrying or storing self-con- (3) Supply of respirable breathing tained breathing apparatus will be in- gas; spected, examined, and tested as com- (4) Gas pressure or liquid level gages; ponents of the respirator for which ap- (5) Timer; proval is sought. (6) Remaining service life indicator (c) Containers for self-contained or warning device; breathing apparatus shall be designed (7) Hand-operated valves; and constructed to permit easy re- (8) Breathing bag; moval of the apparatus. (9) Safety relief valve or safety relief § 84.75 Half-mask facepieces, full system; and facepieces, mouthpieces; fit; min- (10) Harness. imum requirements. (b) The components of each self-con- (a) Half-mask facepieces and full tained breathing apparatus shall meet facepieces shall be designed and con- the minimum construction require- structed to fit persons with various fa- ments set forth in subpart G of this cial shapes and sizes, either: part. (1) By providing more than one face- § 84.72 Breathing tubes; minimum re- piece size; or quirements. (2) By providing one facepiece size Flexible breathing tubes used in con- which will fit varying facial shapes and junction with breathing apparatus sizes. shall be designed and constructed to (b) Full facepieces shall provide for prevent: the optional use of corrective spec- (a) Restriction of free head move- tacles or lenses which shall not reduce ment; the respiratory protective qualities of the apparatus. (b) Disturbance of the fit of facepieces and mouthpieces; (c) Apparatus with mouthpieces shall be equipped with noseclips which are (c) Interference with the wearer’s ac- securely attached to the mouthpiece or tivities; and apparatus and provide an airtight seal. (d) Shutoff of airflow due to kinking, (d) Facepieces shall be designed to or from chin or arm pressure. prevent eyepiece, spectacle, and lens § 84.73 Harnesses; installation and con- fogging. struction; minimum requirements. § 84.76 Facepieces; eyepieces; min- (a) Each apparatus shall, where nec- imum requirements. essary, be equipped with a suitable har- (a) Facepieces shall be designed and ness designed and constructed to hold constructed to provide adequate vision the components of the apparatus in po- which is not distorted by the eyepiece. sition against the wearer’s body. (b) All eyepieces shall be designed (b) Harnesses shall be designed and and constructed to be impact and pene- constructed to permit easy removal tration resistant. Federal Specifica- and replacement of apparatus parts tion, Mask, Air Line: and Respirator, and, where applicable, provide for hold- Air Filtering, Industrial, GGG-M-125d, ing a full facepiece in the ready posi- October 11, 1965 with interim amend- tion when not in use. ment-1, July 30, 1969, is an example of

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an appropriate standard for deter- air set forth in the Compressed Gas As- mining impact and penetration resist- sociation Commodity Specification for ance. Copies of GGG-M-125d may be ob- Air, G–7.1, 1966 (Grade D or higher qual- tained from the NIOSH, National Per- ity). G–7.1 is incorporated by reference sonal Protective Technology Labora- and has been approved by the Director tory, P.O. Box 18070, 626 Cochrans Mill of the Federal Register in accordance Road, Pittsburgh, PA 15236. with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from American [60 FR 30355, June 8, 1995, as amended at 80 FR 3907, Jan. 26, 2015] National Standards Institute, Inc., 1430 Broadway, New York, NY 10018. Copies § 84.77 Inhalation and exhalation may be inspected at the NIOSH, Na- valves; minimum requirements. tional Personal Protective Technology (a) Inhalation and exhalation valves Laboratory, P.O. Box 18070, 626 Coch- shall be provided where necessary and rans Mill Road, Pittsburgh, PA 15236, protected against damage and distor- or at the National Archives and tion. Records Administration (NARA). For (b) Exhalation valves shall be— information on the availability of this (1) Protected against external influ- material at NARA, call 202–741–6030, or ence; and go to: http://www.archives.gov/fed- (2) Designed and constructed to pre- erallregister/ vent inward leakage of contaminated codeloflfederallregulations/ air. ibrllocations.html. (d) Compressed, liquefied breathing § 84.78 Head harnesses; minimum re- air shall meet the applicable minimum quirements. grade requirements for Type II liquid (a) Facepieces shall be equipped with air set forth in the Compressed Gas As- adjustable and replaceable head har- sociation Commodity Specification for nesses designed and constructed to pro- Air, G–7.1, 1966 (Grade B or higher qual- vide adequate tension during suspen- ity). G–7.1 is incorporated by reference sion and an even distribution of pres- and has been approved by the Director sure over the entire area in contact of the Federal Register in accordance with the face. with 5 U.S.C. 552(a) and 1 CFR part 51. (b) Mouthpieces shall be equipped, Copies may be obtained from American where applicable, with adjustable and National Standards Institute, Inc., 1430 replaceable harnesses designed and Broadway, New York, NY 10018. Copies constructed to hold the mouthpiece in may be inspected at the NIOSH, Na- place. tional Personal Protective Technology Laboratory, P.O. Box 18070, 626 Coch- § 84.79 Breathing gas; minimum re- rans Mill Road, Pittsburgh, PA 15236, quirements. or at the National Archives and (a) Breathing gas used to supply ap- Records Administration (NARA). For paratus shall be respirable and contain information on the availability of this no less than 19.5 (dry atmosphere) vol- material at NARA, call 202–741–6030, or ume percent of oxygen. go to: http://www.archives.gov/fed- (b) Oxygen, including liquid oxygen, erallregister/ shall contain not less than 99.0 percent, codeloflfederallregulations/ ibrllocations.html. by volume, of pure O2, not more than 0.03%, by volume, carbon dioxide, and [60 FR 30355, June 8, 1995, as amended at 80 not more than 0.001%, by volume, car- FR 3907, Jan. 26, 2015] bon monoxide. Methods for making these determinations can be found in § 84.80 Interchangeability of oxygen the U.S. Pharmacopeia National For- and air prohibited. mulary. Containers used for oxygen Approvals shall not be issued by the must not be treated with any toxic, Institute for any apparatus, combina- sleep-inducing, narcosis-producing, or tion of respirator assemblies, or any respiratory tract irritating compounds. apparatus or respirator component (c) Compressed, gaseous breathing air which is designed or constructed to shall meet the applicable minimum permit the interchangeable use of oxy- grade requirements for Type I gaseous gen and air.

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§ 84.81 Compressed breathing gas and (c) Gas pressure gages other than liquefied breathing gas containers; those specified in paragraphs (a) and minimum requirements. (b) of this section shall be calibrated (a) Compressed breathing gas and liq- in: uefied breathing gas containers shall (1) Pounds per square inch; or meet the minimum requirements of the (2) In fractions of total container ca- Department of Transportation for pacity; or interstate shipment of such containers (3) Both in pounds per square inch when fully charged. and fractions of total container capac- (b) Such containers shall be perma- ity. nently and legibly marked to identify (d)(1) Dial-indicating gages shall be their contents, e.g., compressed breath- reliable to within ±5 percent of full ing air, compressed breathing oxygen, scale when tested both up and down the liquefied breathing air, or liquefied scale at each of 5 equal intervals. breathing oxygen. (2) The full-scale graduation of dial- (c) Containers normally removed indicating gages shall not exceed 150 from apparatus for refilling shall be percent of the maximum rated cylinder equipped with a dial indicating gage pressures specified for the container in which shows the pressure in the con- applicable Department of Transpor- tainer. tation specifications or permits. (d) Compressed breathing gas con- (e)(1) Stem-type gages shall be read- tained valves or a separate charging able by sight and by touch and shall system or adapter provided with each have a stem travel distance of not less apparatus shall be equipped with outlet than one-fourth inch between each threads specified for the service by the graduation. American Standards Association, Com- (2) A minimum of five graduations pressed Gas Cylinder Valve Outlet and shall be engraved on the stem of each Inlet Connections, B57.1–1965. B57.1–1965 gage and these graduations shall in- is incorporated by reference and has clude readings for empty, one-quarter, been approved by the Director of the one-half, three-quarters, and full. Federal Register in accordance with 5 (3) Stem gage readings shall not vary U.S.C. 552(a) and 1 CFR part 51. Copies from true readings by more than one- may be obtained from American Na- sixteenth inch per inch of stem travel. tional Standards Institute, Inc., 1430 (f) The loss of gas through a broken Broadway, New York, NY Copies may gage or severed gage connection shall be inspected at the NIOSH, National not exceed 70 liters per minute when Personal Protective Technology Lab- the cylinder pressure is 6,900 kN/m.2 oratory, P.O. Box 18070, 626 Cochrans (1,000 pounds per square inch gage) or Mill Road, Pittsburgh, PA 15236, or at when the liquid level is at one-half. the National Archives and Records Ad- (g) Where gages are connected to the ministration (NARA). For information apparatus through a gage line, the gage on the availability of this material at and line shall be capable of being iso- NARA, call 202–741–6030, or go to: http:// lated from the apparatus except where www.archives.gov/federallregister/ the failure of the gage or line would codeloflfederallregulations/ not impair the performance or service ibrllocations.html. life of the apparatus. [60 FR 30355, June 8, 1995, as amended at 80 (h) Oxygen pressure gages shall have FR 3907, Jan. 26, 2015] the words ‘‘Oxygen’’ and ‘‘Use No Oil’’ marked prominently on the gage. § 84.82 Gas pressure gages; minimum (i)(1) Apparatus using compressed requirements. breathing gas, except apparatus classi- (a) Gas pressure gages employed on fied for escape only, shall be equipped compressed breathing gas containers with gages visible to the wearer which shall be calibrated in pounds per square indicate the remaining gas content in inch. the container. (b) Liquid-level gages shall be cali- (2) Apparatus using liquefied breath- brated in fractions of total container ing gas, except apparatus classified for capacity, or in units of liquid volume. escape only, shall be equipped with

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gages visible to the wearer which indi- moval of the stem from the valve body cate the remaining liquid content in during normal usage to insure against the container; however, where the liq- a sudden release of the full pressure of uid content cannot be rapidly vented, the container when the valve is opened. and the service time of the device be- (b) Valves shall be designed or posi- gins immediately after filling, a timer tioned to prevent accidental opening shall be provided in place of a visible and closing, and damage from external gage. forces. § 84.83 Timers; elapsed time indica- (c) Valves operated during use of the tors; remaining service life indica- apparatus shall be installed in loca- tors; minimum requirements. tions where they can be readily ad- (a) Elapsed time indicators shall be justed by the wearer. provided for apparatus with a chemical (d) Main-line valves, designed and oxygen source, except: constructed to conserve gas in the (1) Apparatus used for escape only; or event of a regulator or demand valve (2) Liquefied breathing gas apparatus failure, shall be provided in addition to equipped with gages visible to the gas container valves, except when such wearer which indicate the remaining failure will not affect performance. liquid content in the container. (e) Hand-operated bypass systems de- (b) The timer or other indicator shall signed and constructed to permit the be accurately calibrated in minutes of wearer to breathe and to conserve his remaining service life. gas supply in the event of a regulator (c) Timers shall be readable by sight or demand valve failure, shall be pro- and by touch during use by the wearer. vided where necessary. (d) Timers shall be equipped with (f) Valves installed on apparatus automatically preset alarms which will warn the wearer for a period of 7 sec- shall be clearly distinguishable from onds or more after the preset time has one another by sight and touch. elapsed. (g) The bypass system valve control (e) Remaining service-life indicators shall be colored red. or warning devices shall be provided in (h) A main-line or bypass valve or addition to a pressure gage on com- system will not be required on appa- pressed gas self-contained breathing ratus for escape only. apparatus, except apparatus used for (i) Safety relief valves or systems, escape only, and shall operate auto- designed and constructed to release ex- matically without preadjustment by cess pressure in the breathing circuit, the wearer. shall be provided on closed-circuit ap- (f) Each remaining service-life indi- paratus, and shall meet the following cator or warning device must give an requirements: alarm when the remaining service life (1) The relief valve or system shall is reduced to a minimum of 25 percent operate automatically when the pres- of its rated service time or any higher sure in the breathing circuit on the in- minimum percent value or values as halation side of the breathing bag specified in the approval. Open-circuit demand and pressure-demand res- reaches 13 mm. (one-half inch) water- pirators must alarm continuously until column height of pressure above the depletion of the breathing air supply. minimum pressure required to fill the The percent value set for indicator ac- breathing bag, within the breathing re- tivation must be identified by labels sistance requirements for the appa- and/or markings on each respirator ratus. unit. (2) The relief valve or system shall be designed to prevent external [60 FR 30355, June 8, 1995, as amended at 78 FR 2622, Jan. 14, 2013] atmospheres from entering the breathing circuit. § 84.84 Hand-operated valves; min- (3) The relief valve or system shall be imum requirements. designed to permit manual overriding (a) Hand-operated valves shall be de- for test purposes and in the event of a signed and constructed to prevent re- failure in the valve or system.

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§ 84.85 Breathing bags; minimum re- where the weight decreases by more quirements. than 25 percent of its initial charge (a) Breathing bags shall have suffi- weight during its rated service life, the cient volume to prevent gas waste dur- maximum allowable weight of a com- ing exhalation and to provide an ade- pletely assembled and fully charged ap- quate reserve for inhalation. paratus shall be 18 kg. (40 pounds). (b) Breathing bags shall be con- (b) Where an apparatus employs structed of materials which are flexible equipment which contributes materi- and resistant to gasoline vapors. ally to the wearer’s comfort, e.g., a (c) Breathing bags shall be installed cooling system, the completely assem- in a location which will protect them bled and fully charged apparatus shall from damage or collapse by external not weigh more than 18 kg. (40 pounds) forces, except on apparatus classified regardless of the decrease in weight for escape only. during use.

§ 84.86 Component parts exposed to § 84.90 Breathing resistance test; inha- oxygen pressures; minimum relation. quirements. Each applicant shall certify that the (a) Resistance to inhalation airflow materials employed in the construc- will be measured in the facepiece or tion of component parts exposed to ox- mouthpiece while the apparatus is op- ygen pressures above atmospheric pres- erated by a breathing machine as de- sure are safe and compatible for their scribed in § 84.88. intended use. (b) The inhalation resistance of open- circuit apparatus shall not exceed 32 § 84.87 Compressed gas filters; min- mm. (1.25 inch) water-column height imum requirements. (at a flow rate of 120 liters per minute). All self-contained breathing appa- (c) The inhalation resistance of ratus using compressed gas shall have closed-circuit apparatus shall not ex- a filter downstream of the gas source ceed the difference between exhalation to effectively remove particles from resistance (§ 84.91(e)) and 10 cm. (4 the gas stream. inches) water-column height.

§ 84.88 Breathing bag test. § 84.91 Breathing resistance test; exha- (a) Breathing bags will be tested in lation. an air atmosphere saturated with gaso- (a) Resistance to exhalation airflow line vapor at room temperature (24–30 will be measured in the facepiece or °C./75–85 °F.) for a continuous period of mouthpiece of open-circuit apparatus twice the rated time of the apparatus with air flowing at a continuous rate of (except for apparatus for escape only 85 liters per minute. where the test period shall be the rated (b) The exhalation resistance of de- time of the apparatus). mand apparatus shall not exceed 25 (b) The bag will be operated during mm. (1 inch) water-column height. this test by a breathing machine with 24 respirations per minute and a (c) The exhalation resistance of pres- minute-volume of 40 liters. sure-demand apparatus shall not ex- (c) A breathing machine cam with a ceed the static pressure in the face- work rate of 622 kp.-m./min. will be piece by more than 51 mm. (2 inches) used. The dimensions of a suitable water-column height. breathing machine cam are available (d) The static pressure (at zero flow) from the Institute upon request. in the facepiece shall not exceed 38 (d) The air within the bag(s) shall not mm. (1.5 inches) water-column height. contain more than 100 parts per million (e) Resistance to exhalation airflow of gasoline vapor at the end of the test. will be measured in the facepiece or mouthpiece of closed-circuit apparatus § 84.89 Weight requirement. with a breathing machine as described (a) The completely assembled and in § 84.88, and the exhalation resistance fully charged apparatus shall not weigh shall not exceed 51 mm. (2 inches) more than 16 kg. (35 pounds); however, water-column height.

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§ 84.92 Exhalation valve leakage test. § 84.96 Service time test; closed-circuit apparatus. (a) Dry exhalation valves and valve seats will be subjected to a suction of (a) The closed-circuit apparatus will 25 mm. (1 inch) water-column height be classified according to the length of while in a normal operating position. time it supplies adequate breathing gas (b) Leakage between the valve and to the wearer during man test No. 4 de- the valve seat shall not exceed 30 milli- scribed in Table 4 of this subpart. liters per minute. (b) The service time obtained on man test No. 4 will be used to classify the § 84.93 Gas flow test; open-circuit ap- closed-circuit apparatus in accordance paratus. with § 84.53. (a) A static-flow test will be per- § 84.97 Test for carbon dioxide in in- formed on all open-circuit apparatus. spired gas; open- and closed-circuit (b) The flow from the apparatus shall apparatus; maximum allowable lim- be greater than 200 liters per minute its. when the pressure in the facepiece of (a) Open-circuit apparatus. (1) The demand-apparatus is lowered by 51 mm. concentration of carbon dioxide in in- (2 inches) water-column height when spired gas in open-circuit apparatus full container pressure is applied. will be measured at the mouth while (c) Where pressure demand apparatus the apparatus mounted on a dummy are tested, the flow will be measured at head is operated by a breathing ma- zero gage pressure in the facepiece. chine. An acceptable method for meas- (d) Where apparatus with com- uring the concentration of carbon diox- pressed-breathing-gas containers are ide is described in Bureau of Mines Re- tested, the flow test shall also be made port of Investigations 6865, A Machine- with 3,450 kN/m.2 (500 p.s.i.g.) container Test Method for Measuring Carbon Di- pressure applied. oxide in the Inspired Air of Self-Con- tained Breathing Apparatus, 1966. Cop- § 84.94 Gas flow test; closed-circuit ap- ies of Report of Investigations 6865 may paratus. be inspected or obtained from the (a) Where oxygen is supplied by a NIOSH, National Personal Protective constant-flow device only, the rate of Technology Laboratory, P.O. Box 18070, flow shall be at least 3 liters per 626 Cochrans Mill Road, Pittsburgh, PA minute for the entire rated service 15236. time of the apparatus. (2) The breathing rate will be 14.5 respirations per minute with a minute- (b) Where constant flow is used in volume of 10.5 liters. conjunction with demand flow, the con- (3) A sedentary breathing machine stant flow shall be greater than 1.5 li- cam will be used. ters per minute for the entire rated (4) The apparatus will be tested at a service time. temperature of 27 ±2 °C. (80 ±5 °F.). (c) All demand-flow devices shall pro- (5) A concentration of 5 percent car- vide at least 30 liters of oxygen per bon dioxide in air will be exhaled into minute when in the fully open position. the facepiece. (b) Closed-circuit apparatus. The con- § 84.95 Service time test; open-circuit apparatus. centration of carbon dioxide in inspired gas in closed-circuit apparatus will be (a) Service time will be measured measured at the mouth while the parts with a breathing machine as described of the apparatus contributing to dead- in § 84.88. air space are mounted on a dummy (b) The open-circuit apparatus will be head and operated by the breathing classified according to the length of machine as in paragraphs (a) (1) time it supplies air or oxygen to the through (5) of this section. breathing machine. (c) During the testing required by (c) The service time obtained on this paragraphs (a) and (b) of this section, test will be used to classify the open- the concentration of carbon dioxide in circuit apparatus in accordance with inspired gas at the mouth will be con- § 84.53. tinuously recorded, and the maximum

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average concentration during the inha- (2) The wearer shall have sufficient lation portion of the breathing cycle unobscured vision to perform the work. shall not exceed the following limits: (3) The wearer shall not experience undue discomfort because of airflow re- Maximum allowable average concentration of striction or other physical or chemical Where the service time is carbon dioxide in in- changes in the operation of the appa- spired air percent by volume ratus. (f) Auxiliary low-temperature parts Not more than 30 minutes ...... 2.5 1 hour ...... 2.0 which are commercially available to 2 hours ...... 1.5 the user may be used on the apparatus 3 hours ...... 1.0 to meet the requirements described in 4 hours ...... 1.0 paragraph (e) of this section.

(d) In addition to the test require- § 84.99 Man tests; testing conditions; ments for closed-circuit apparatus set general requirements. forth in paragraph (b) of this section, gas samples will be taken during the (a) The man tests described in Tables course of the man tests described in 1, 2, 3, and 4 of this subpart represent Tables 1, 2, 3, and 4 of this subpart. the workload performed in the mining, These gas samples will be taken from mineral, or allied industries by a per- the closed-circuit apparatus at a point son wearing the apparatus tested. downstream of the carbon dioxide sor- (b) The apparatus tested will be worn bent, and they shall not contain more by Institute personnel trained in the than 0.5 percent carbon dioxide at any use of self-contained breathing appa- time, except on apparatus for escape ratus, and the wearer will, before par- only, using a mouthpiece only, the ticipating in these tests, pass a phys- sample shall not contain more than 1.5 ical examination conducted by a quali- percent carbon dioxide at any time. fied physician. (c) All man tests will be conducted by [60 FR 30355, June 8, 1995, as amended at 80 the Institute. FR 3907, Jan. 26, 2015] (d) The apparatus will be examined § 84.98 Tests during low temperature before each man test to ensure that it operation. is in proper working order. (a) The applicant shall specify the (e) Breathing resistance will be meas- minimum temperature for safe oper- ured within the facepiece or mouth- ation and two persons will perform the piece and the wearer’s pulse and res- tests described in paragraphs (c) and piration rate will be recorded during (d) of this section, wearing the appa- each 2 minute sample period prescribed ratus according to applicant’s direc- in tests 1, 2, 3, and 4. tions. At the specified temperature, the (f) Man tests 1, 2, 3, 4, 5, and 6 will be apparatus shall meet all the require- conducted in duplicate. ments described in paragraph (e) of this (g) If man tests are not completed section. through no fault of the apparatus, the (b) The apparatus will be precooled at test will be repeated. the specified minimum temperature for 4 hours. § 84.100 Man tests 1, 2, 3, and 4; requirements. (c) The apparatus will be worn in the low temperature chamber for 30 min- Man tests 1, 2, 3, and 4, set forth in utes, or for the service time of the ap- Tables 1, 2, 3, and 4 of this subpart, re- paratus, whichever is less. spectively, prescribe the duration and (d) During the test period, alternate sequence of specific activities. These 1-minute periods of exercise and rest tests will be conducted to— will be required with the exercise peri- (a) Familiarize the wearer with the ods consisting of stepping onto and off apparatus during use; a box 21.5 cm. (81⁄2 inches) high at a (b) Provide for a gradual increase in rate of 30 cycles per minute. activity; (e)(1) The apparatus shall function (c) Evaluate the apparatus under dif- satisfactorily at the specified min- ferent types of work and physical ori- imum temperature on duplicate tests. entation; and

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(d) Provide information on the oper- (b) This test will be conducted to ating and breathing characteristics of evaluate operation of the apparatus in the apparatus during actual use. other than vertical positions. (c) The wearer will lie face downward § 84.101 Man test 5; requirements. for one-fourth the service life of the ap- (a) Test 5 will be conducted to deter- paratus with a full charge of liquefied mine the maximum length of time the breathing gas, and then a one-quarter apparatus will supply the respiratory full charge of liquefied breathing gas. needs of the wearer while he is sitting (d) The test will be repeated with the at rest. wearer lying on each side and on his (b) The wearer will manipulate the back. (e) The oxygen content of the gas devices controlling the supply of supplied to the wearer by the appa- breathing gas to the advantage of the ratus will be continuously measured. apparatus. (c) Samples of inspiration from with- § 84.103 Man tests; performance re- in the apparatus facepiece or mouth- quirements. piece shall be taken once every 15 min- (a) The apparatus shall satisfy the utes, and shall meet the minimum re- respiratory requirements of the wearer quirement for oxygen specified in for the classified service time. § 84.79(a), and the maximum allowable (b) Fogging of the eyepiece shall not average concentration of carbon diox- obscure the wearer’s vision, and the ide specified in § 84.97(c). wearer shall not experience undue dis- (d) One sample of inspiration will be comfort because of fit or other charac- taken in the case of 3-, 5-, and 10- teristics of the apparatus. minute apparatus. (c) When the ambient temperature during testing is 24 ±6 °C. (75 ±10 °F.), § 84.102 Man test 6; requirements. the maximum temperature of inspired (a) Man test 6 will be conducted with air recorded during man tests shall not respect to liquefied breathing gas appa- exceed the following, after correction ratus only. for deviation from 24 °C. (75 °F.):

Where percent Maximum permissible relative humid- temperature of inspired air Where service life of apparatus is— ity of inspired shall not exceed— air is— °F. °C.

1⁄4 hour or less ...... 0–100 135 57 1⁄4 hour to 3⁄4 hour ...... 0–50 125 52 50–100 1 110 1 43 1 to 2 hours ...... 0–50 115 46 50–100 1105 141 3 hours ...... 0–50 110 43 50–100 1100 1 38 4 hours ...... 0–50 105 41 50–100 1 95 1 35 1 Where percent relative humidity is 50–100 and apparatus is designed for escape only, these maximum permissible temperatures will be increased by 5 °C (10 °F).

§ 84.104 Gas tightness test; minimum (b) Six persons will each wear the ap- requirements. paratus in the test concentrations specified in paragraph (a) of this sec- (a) Each apparatus will be tested for tion for 2 minutes and none shall de- tightness by persons wearing it in an tect the odor or taste of the test vapor. atmosphere of 1,000 p.p.m. isoamyl acetate.

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TABLES TO SUBPART H OF PART 84

TABLE 1—DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 1, IN MINUTES [42 CFR part 84, subpart H]

Service time— Activity 3 min- 5 min- 10 min- 15 min- 30 min- 45 minutes utes utes utes utes utes 1 hour 2, 3, and 4 hours

Sampling and readings ...... 2 2 2 2 Perform 1 hour test 2, 3, or 4 times respec- tively. Walks at 4.8 km. (3 miles) 3 5 3 4 8 12 18 per hour. Sampling and readings...... 2 2 2 2 2 Walks at 4.8 km. (3 miles) ...... 3 5 8 12 18 per hour. Sampling and readings...... 2 2 2 2 2 Walks at 4.8 km. (3 miles) ...... 6 13 16 per hour. Sampling and readings ...... 2 2 2

TABLE 2—DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 2, IN MINUTES [42 CFR part 84, subpart H]

Service time— Activity 3 min- 5 min- 10 min- 15 min- 30 min- 45 min- 1 hour 2, 3 and utes utes utes utes utes utes 4 hours 1

Sampling and readings...... 2 2 2 2 2 Walks at 4.8 km. (3 miles) per hour ...... 1 1 3 4 6 10. Carries 23 kg. (50 pound) weight over overcast ...... 1 time in 1 time in 2 times in 3 times in 4 times in 5 times in 2 minutes 2 minutes 4 minutes 6 minutes 8 minutes 10 minutes. Walks at 4.8 km. (3 miles) per hour ...... 1 3 3 3 5. Climbs vertical treadmill 2 (or equivalent) ...... 1 1 1 1 1 1 1 1. Walks at 4.8 km. (3 miles) per hour ...... 1 1 ...... 2 3 5 Climbs vertical treadmill (or equivalent) ...... 1 ...... 1 1 1. Sampling and readings ...... 2 2 2 2. Walks at 4.8 km. (3 miles) per hour ...... 2 2 3 5 11. Climbs vertical treadmill (or equivalent) ...... 1 1 1 1 1. Carries 23 kg. (50 pound) weight over overcast ...... 1 time in 3 times in 4 times in 5 times in 5 times in 2 minutes 6 minutes 8 minutes 10 10 minutes minutes. Sampling and readings ...... 2 ...... 2 2 2. Walks at 4.8 km. (3 miles) per hour ...... 1 3 3 3 ...... Climbs vertical treadmill (or equivalent) ...... 1 1 1 1 1 Then repeat above activities once. Walks at 4.8 km. (3 miles) per hour ...... 2 ...... 2 3 Climbs vertical treadmill (or equivalent) ...... 1 1 ...... Carries 20 kg. (45 pound) weight and walks at 4.8 km. (3 miles) per hour...... 1 ...... 2 ...... Walks at 4.8 km. (3 miles) per hour ...... 1 2 ...... 1 4 ......

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TABLE 2—DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 2, IN MINUTES—Continued [42 CFR part 84, subpart H]

Service time— Activity 3 min- 5 min- 10 min- 15 min- 30 min- 45 min- 1 hour 2, 3 and utes utes utes utes utes utes 4 hours 1

Sampling and readings ...... 2 2 2 2 ...... 1 Total test time for Test 2 for 2-hour, 3-hour, and 4-hour apparatus is 2 hours. 2 Treadmill shall be inclined 15° from vertical and operated at a speed of 1 foot per second.

TABLE 3—DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 3, IN MINUTES [42 CFR part 84, subpart H]

Service time—

Activity 3 min- 5 min- 10 min- 15 min- 30 min- 45 min- 2, 3 and utes utes utes utes utes utes 1 hour 4 hours 1

Sampling and readings ...... 2 2 2 2 (2) Walks at 4.8 km. (3 miles) per hour ...... 1 1 2 2 3 ...... Runs at 9.7 km. (6 miles) per hour ...... 1 1 1 1 1 1 1 ...... Pulls 20 kg. (45 pound) weight to 5 feet ...... 15 times ...... 30 times 30 times 30 times 60 times ...... in 1 in 2 in 2 in 2 in 6 minute minutes minutes minutes minutes Lies on side...... 1/2 1 1 2 3 4 5 ...... Lies on back...... 1/2 1 1 2 2 3 3 ...... Crawls on hands and knees ...... 1 1 1 2 2 2 2 ...... Sampling and readings ...... 2 ...... 2 2 2 ...... Runs at 9.7 km. (6 miles) per hour ...... 1 1 1 1 ...... Walks at 4.8 km. (3 miles) per hour ...... 2 8 10 ...... Pulls 20 kg. (45 pound) weight to 5 feet ...... 30 times ...... 60 times 60 times 60 times ...... in 2 in 6 in 6 in 6 minutes minutes minutes minutes Sampling and readings ...... 2 ...... 2 2 ...... Walks at 4.8 km. (3 miles) per hour ...... 1 ...... 3 4 10 ...... Lies on side ...... 2 4 ...... Lies on back ...... 2 1 ...... Sampling and readings ...... 2 2 2 ...... 1 Total test time for Test 3 for 2-hour, 3-hour, and 4-hour apparatus is 2 hours. 2 Perform test No. 3 for 1 hr. apparatus; then perform test No. 1 for 1 hour apparatus.

TABLE 4—DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 4, IN MINUTES [42 CFR part 84, subpart H]

Service time— Activity 3 min- 5 min- 10 min- 15 min- 30 min- 45 minutes utes utes utes utes utes 1 hour 2 hours 3 hours 4 hours

Sampling and readings ...... 2 2 2 2 (2) (3) (4) Walks at 4.8 km. (3 miles) per hour ...... 1 2 2 2 ...... Climbs vertical treadmill 1 (or equivalent) ..... 1 1 1 1 1 1 1 ...... Walks at 4.8 km. (3 miles) per hour ...... 1 1 1 2 2 2 ...... Pulls 20 kg. (45 pound) weight to 5 feet ...... 30 times 30 times 30 times 60 times 60 times 60 times ...... in 2 in 2 in 2 in 5 in 5 in 5 minutes minutes minutes minutes minutes minutes Walks at 4.8 km. (3 miles) per hour ...... 1 1 1 2 3 ......

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TABLE 4—DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 4, IN MINUTES—Continued [42 CFR part 84, subpart H]

Service time— Activity 3 min- 5 min- 10 min- 15 min- 30 min- 45 minutes utes utes utes utes utes 1 hour 2 hours 3 hours 4 hours

Carries 23 kg. (50 pound) weight over overcast ...... 1 time in 1 time in 2 times 4 times ...... 1 minute 1 minute in 3 in 8 minutes minutes Sampling and readings ...... 2 ...... 2 2 2 ...... Walks at 4.8 km. (3 miles) per hour ...... 1 3 3 4 ...... Runs at 9.7 km. (6 miles) per hour ...... 1 1 1 1 1 1 ...... Carries 23 kg. (50 pound) weight over overcast ...... 1 time in 1 time in 2 times 4 times 6 times ...... 1 minute 1 minute in 3 in 6 in 9 minutes minutes minutes Pulls 20 kg (45 pound) weight to 5 feet ...... 15 times ...... 15 times 60 times 30 times 36 times ...... in 1 in 1 in 5 in 2 in 3 minute minute minutes minutes minutes Sampling and readings ...... 2 2 2 2 ...... Walks at 4.8 km. (3 miles) per hour ...... 1 ...... 1 ...... 2 6 ...... Pulls 20 kg. (45 pound) weight to 5 feet ...... 60 times 60 times ...... in 5 in 5 minutes minutes Carries 20 kg. (45 pound) weight and walks at 4.8 km. (3 miles) per hour ...... 3 3 ...... Sampling and readings ...... 2 2 ...... 1 Treadmill shall be inclined 15° from vertical and operated at a speed of 30 cm. (1 foot) per second. 2 Perform test No. 1 for 30-minute apparatus; then perform test No. 4 for 1-hour apparatus; then perform test No. 1 for 30- minute apparatus. 3 Perform test No. 1 for 1-hour apparatus; then perform test No. 4 for 1-hour apparatus; then perform test No. 1 for 1-hour apparatus. 4 Perform test No. 1 for 1-hour apparatus; then perform test No. 4 for 1-hour apparatus; then perform test No. 1 for 1-hour apparatus twice (i.e., two one-hour tests).

Subpart I—Gas Masks gen to support life are described as follows: § 84.110 Gas masks; description. (1) Front-mounted or back-mounted gas A gas mask which consists of a (a) Gas masks including all com- mask. full facepiece, a breathing tube, a can- pletely assembled air purifying masks ister at the front or back, a canister designed for use as respiratory protec- harness, and associated connections. tion during entry into atmospheres not (2) Chin-style gas mask. A gas mask immediately dangerous to life or which consists of a full facepiece, a health or escape only from hazardous canister which is usually attached to atmospheres containing adequate oxy- the facepiece, and associated connections.

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(3) Escape gas mask. A gas mask de- cation is accepted, the Institute will signed for use during escape only from test such masks in accordance with the hazardous atmospheres which consists requirements of this subpart. of a facepiece or mouthpiece, a can- [60 FR 30355, June 8, 1995, as amended at 80 ister, and associated connections. FR 3907, Jan. 26, 2015] (b) Gas masks shall be further described according to the types of gases § 84.111 Gas masks; required compo- or vapors against which they are de- nents. signed to provide respiratory protec- (a) Each gas mask described in tion, as follows: § 84.110 shall, where its design requires, contain the following component parts: Type of front-mounted or back-mounted gas mask: (1) Facepiece or mouthpiece and 123 Acid gas noseclip; Ammonia Carbon monoxide (2) Canister or cartridge; Organic Vapor 123 (3) Canister harness; Other gas(es) and vapor(s) 123 (4) External check valve; and Combination of two or more of the above gases (5) Breathing tube. and vapors. 123 (b) The components of each gas mask Combination of acid gas, ammonia, carbon shall meet the minimum construction monoxide, and organic vapors. 123 requirements set forth in subpart G of Type of chin-style gas mask: this part. Acid gas 123 Ammonia Carbon monoxide § 84.112 Canisters and cartridges in Organic vapor 123 parallel; resistance requirements. Other gas(es) and vapor 123 Where two or more canisters or car- Combination of two or more of the above gases tridges are used in parallel, their re- and vapors. 123 sistance to airflow shall be essentially Type of escape gas mask: equal. Acid gas 1234 4 Ammonia § 84.113 Canisters and cartridges; Carbon monoxide color and markings; requirements. Organic vapor 1234 Other gas(s) and vapor(s) 1234 The color and markings of all can- Combination of two or more of the above gases isters and cartridges or labels shall and vapors. 1234 conform with the requirements of the 1 Approval may be for acid gases or organic vapors as a American National Standards Insti- class or for specific acid gases or organic vapors. tute, American National Standard for 2 Not for use against gases or vapors with poor warning properties (except where MSHA or Occupational Safety and Identification of Air-Purifying Res- Health Administration standards permit such use for a spe- pirator Canisters and Cartridges, ANSI cific gas or vapor), or those which generate high heats or reaction with sorbent materials in the canister. K13.1–1973. ANSI K13.1 is incorporated 3 Use of the gas mask may be limited by factors such as by reference and has been approved by lower explosive limit, toxicological effects, and facepiece fit. Limitations on gas mask service life and sorbent capacity the Director of the Federal Register in limitations shall be specified by the applicant in instructions accordance with 5 U.S.C. 552(a) and 1 for selection, use and maintenance of the gas mask. 4 Eye protection may be required in certain concentrations CFR part 51. Copies may be obtained of gases and vapors. from American National Standards In- (c) Gas masks for respiratory protec- stitute, Inc., 1430 Broadway, New York, tion against gases and vapors other NY 10018. Copies may be inspected at than those specified in paragraph (b) of the NIOSH, National Personal Protec- this section, may be approved upon tive Technology Laboratory, P.O. Box submittal of an application in writing 18070, 626 Cochrans Mill Road, Pitts- for approval to the National Personal burgh, PA 15236, or at the National Ar- Protective Technology Laboratory list- chives and Records Administration ing the gas or vapor and suggested (NARA). For information on the avail- maximum use concentration for the ability of this material at NARA, call specific type of gas mask. The Institute 202–741–6030, or go to: http:// will consider the application and ac- www.archives.gov/federallregister/ cept or reject it on the basis of effect codeloflfederallregulations/ on the wearer’s health and safety and ibrllocations.html. any field experience in use of gas [60 FR 30355, June 8, 1995, as amended at 80 masks for such exposures. If the appli- FR 3907, Jan. 26, 2015]

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§ 84.114 Filters used with canisters § 84.118 Half-mask facepieces, full and cartridges; location; replace- facepieces, and mouthpieces; fit; ment. minimum requirements. (a) Particulate matter filters used in (a) Half-mask facepieces and full conjunction with a canister or car- facepieces shall be designed and con- tridge shall be located on the inlet side structed to fit persons with various fa- of the canister or cartridge. cial shapes and sizes either: (b) Filters shall be incorporated in or (1) By providing more than one face- firmly attached to the canister or car- piece size; or tridge and each filter assembly shall, (2) By providing one facepiece size where applicable, be designed to permit which will fit varying facial shapes and its easy removal from and replacement sizes. in the canister or cartridge. (b) Full facepieces shall provide for optional use of corrective spectacles or § 84.115 Breathing tubes; minimum re- lenses, which shall not reduce the res- quirements. piratory protective qualities of the gas Flexible breathing tubes used in con- mask. junction with gas masks shall be de- (c) Half-mask facepieces shall not signed and constructed to prevent: interfere with the fit of common indus- (a) Restriction of free head move- trial safety spectacles, as determined by the Institute’s facepiece tests in ment; § 84.124. (b) Disturbance of the fit of (d) Gas masks with mouthpieces shall facepieces or mouthpieces; be equipped with noseclips which are (c) Interference with the wearer’s ac- securely attached to the mouthpiece or tivities; and gas mask and provide an airtight seal. (d) Shutoff of airflow due to kinking, (e) Facepieces shall be designed to or from chin or arm pressure. prevent eyepiece fogging.

§ 84.116 Harnesses; installation and § 84.119 Facepieces; eyepieces; min- construction; minimum require- imum requirements. ments. (a) Full facepieces shall be designed (a) Each gas mask shall, where nec- and constructed to provide adequate vi- essary, be equipped with a suitable har- sion which is not distorted by the eye. ness designed and constructed to hold (b) All eyepieces shall be designed the components of the gas mask in po- and constructed to be impact and pene- sition against the wearer’s body. tration resistant. Federal Specifica- (b) Harnesses shall be designed and tion, Mask, Air Line: and Respirator, constructed to permit easy removal Air Filtering, Industrial, GGG-M-125d, and replacement of gas mask parts, and October 11, 1965 with interim amend- where applicable, provide for holding a ment-1, July 30, 1969, is an example of full facepiece in the ready position an appropriate standard for deter- when not in use. mining impact and penetration resistance. Copies of GGG-M-125d may be ob- § 84.117 Gas mask containers; min- tained from the NIOSH, National Per- imum requirements. sonal Protective Technology Labora- (a) Gas masks shall be equipped with tory, P.O. Box 18070, 626 Cochrans Mill a substantial, durable container bear- Road, Pittsburgh, PA 15236. ing markings which show the appli- [60 FR 30355, June 8, 1995, as amended at 80 cant’s name, the type and commercial FR 3907, Jan. 26, 2015] designation of mask it contains and all appropriate approval labels. § 84.120 Inhalation and exhalation (b) Containers for gas masks shall be valves; minimum requirements. designed and constructed to permit (a) Inhalation and exhalation valves easy removal of the mask. shall be provided where necessary and protected against damage and distortion.

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(b) Inhalation valves shall be de- (b) Mouthpieces shall be equipped, signed and constructed to prevent ex- where applicable, with adjustable and cessive exhaled air from adversely af- replaceable harnesses designed and fecting cartridges, canisters, and fil- constructed to hold the mouthpiece in ters. place. (c) Exhalation valves shall be protected against external influence, and § 84.122 Breathing resistance test; min- designed and constructed to prevent in- imum requirements. ward leakage of contaminated air. (a) Resistance to airflow will be measured in the facepiece or mouth- § 84.121 Head harnesses; minimum re- piece of a gas mask mounted on a quirements. breathing machine both before and (a) Facepieces shall be equipped with after each test conducted in accordance adjustable and replaceable head har- with §§ 84.124, 84.125, and 84.126, with air nesses, designed and constructed to flowing at a continuous rate of 85 liters provide adequate tension during use per minute. and an even distribution of pressure (b) The maximum allowable resist- over the entire area in contact with ance requirements for gas masks are as the face. follows:

MAXIMUM RESISTANCE [mm. water-column height]

Inhalation Type of gas mask Exhalation Initial Final 1

Front-mounted or back-mounted (without particulate filter) ...... 60 75 20 Front-mounted or back-mounted (with approved particulate filter) ...... 70 85 20 Chin-style (without particulate filter) ...... 40 55 20 Chin-style (with approved particulate filter) ...... 65 80 20 Escape (without particulate filter) ...... 60 75 20 Escape (with approved particulate filter) ...... 70 85 20 1 Measured at end of the service life specified in Tables 5, 6, and 7 of this subpart.

§ 84.123 Exhalation valve leakage test. turbing the facepiece or mouthpiece fit. (a) Dry exhalation valves and valve (d) The facepiece or mouthpiece fit seats will be subjected to a suction of test, using positive or negative pres- 25 mm. water-column height while in a sure recommended by the applicant normal operating position. and described in his instructions will (b) Leakage between the valve and be used before each test specified in valve seat shall not exceed 30 milli- paragraph (e) of this section, and in liters per minute. § 84.125. (e)(1) Each wearer will enter a cham- § 84.124 Facepiece tests; minimum re- ber containing 100 p.p.m. isoamyl ace- quirements. tate vapor for a half-mask facepiece (a) The complete gas mask will be and 1,000 p.p.m. isoamyl acetate vapor fitted to the faces of persons having for a full facepiece or mouthpiece. varying facial shapes and sizes. (2) The facepiece or mouthpiece may (b) Where the applicant specifies a be adjusted, if necessary, in the test facepiece size or sizes for the gas mask, chamber before starting the tests. together with the approximate meas- (3) Each wearer will remain in the urements of faces they are designed to chamber for 8 minutes while per- fit, the Institute will insure that test forming the following activities: subjects suit such facial measure- (i) Two minutes, nodding and turning ments. head; (c) Any gas mask parts which must (ii) Two minutes, calisthenic arm be removed to perform the facepiece or movements; mouthpiece fit test shall be replaceable (iii) Two minutes, running in place; without special tools and without dis- and

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(iv) Two minutes, pumping with a room temperature, and tested within 18 tire pump into a 28 liter (1 cubic foot) hours. container. (b) Front-mounted and back-mounted (4) Each wearer shall not detect the gas mask canisters will be tested and odor of isoamyl acetate during the shall meet the minimum requirements test. set forth in Table 5 of this subpart. (c)(1) Front-mounted, and back- § 84.125 Particulate tests; canisters containing particulate filters; min- mounted, and chin-style canisters des- imum requirements. ignated as providing respiratory pro- Gas mask canisters containing filters tection against gases, ammonia, or- for protection against particulates (e.g. ganic vapors, carbon monoxide and par- dusts, fumes, mists, and smokes) in ticulate contaminants shall have a combination with gases, vapors, or window or other indicator to warn the gases and vapors, shall also comply gas mask wearer when the canister will with the requirements as prescribed in no longer satisfactorily remove carbon §§ 84.170 through 84.181, except for the monoxide from the inhaled air. airflow resistance test of § 84.172. (2) Other types of front- and back- mounted canisters may also be [60 FR 30355, June 8, 1995, as amended at 85 FR 20607, Apr. 14, 2020] equipped with a window or other indicator to warn of imminent leakage of § 84.126 Canister bench tests; min- other gases or vapors. imum requirements. (3) The window indicator canisters (a)(1) Bench tests, except for carbon will be tested as regular canisters, but monoxide tests, will be made on an ap- shall show a satisfactory indicator paratus that allows the test atmos- change or other warning before the al- phere at 50 ±5 percent relative humid- lowable canister penetration has oc- ity and room temperature (25 ±2.5 °C.) curred. to enter the canister continuously at (d) Chin-style gas mask canisters concentrations and rates of flow speci- shall meet the minimum requirements fied in Tables 5, 6, and 7 of this subpart. set forth in Table 6 of this subpart. (2) Three canisters will be removed (e) Escape gas mask canisters shall from containers and tested as received meet the minimum requirements set from the applicant. forth in Table 7 of this subpart. (3) Two canisters, other than those (f) Powered air-purifying respirators described in paragraph (a)(2) of this with a canister(s) and particulate fil- section, will be equilibrated at room ter(s) must meet the as-received min- temperature by passing 25 percent rel- imum service-life requirements and ative humidity air through them at 64 half of the equilibrated minimum serv- liters per minute for 6 hours. ice-life requirements set forth in Ta- (4) Two canisters, other than those bles 5, 6, and 7 of subpart I using the described in paragraphs (a) (2) and (3) flows specified in subpart K, § 84.175(b) of this section, will be equilibrated at and equilibrated in accordance with room temperature by passing 85 per- paragraphs (a) through (e) of this sec- cent relative humidity air through tion using the flows specified in sub- them at 64 liters per minute for 6 part K, § 84.175(b). hours. (5) The equilibrated canisters will be [60 FR 30355, June 8, 1995, as amended at 85 resealed, kept in an upright position at FR 20607, Apr. 14, 2020]

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TABLES TO SUBPART I OF PART 84

TABLE 5—CANISTER BENCH TESTS AND REQUIREMENTS FOR FRONT-MOUNTED AND BACK-MOUNTED GAS MASK CANISTERS [42 CFR part 84, subpart I]

Test atmosphere Maximum Minimum Test condi- Number allowable service Canister type tion Concentra- Flow rate of tests penetratin life (min- Gas or vapor tion (parts (liters per (parts per utes) 1 per million) minute) million)

Acid gas ...... As received SO2 20,000 64 3 5 12 Equilibrated Cl2 20,000 64 3 5 12 SO2 20,000 32 4 5 12 Cl2 20,000 32 4 5 12 Organic vapor ...... As received CCl4 20,000 64 3 5 12 Equilibrated CCl4 20,000 32 4 5 12 Ammonia ...... As received NH3 30,000 64 3 50 12 Equilibrated NH3 30,000 32 4 50 12 Carbon monoxide ...... As received CO 20,000 4 64 2 (3) 60 Equilibrated CO 5,000 2 32 3 (3) 60 CO 3,000 2 32 3 (3) 60 Combination of 2 or 3 of above types 5 Combination of all above types 6 1 Minimum life will be determined at the indicated penetration. 2 Relative humidity of test atmosphere will be 95 ±3pct; temperature of test atmosphere will be 25 ±2.5 °C. 3 Maximum allowable CO penetration will be 385 cm 3 during the minimum life. The penetration shall not exceed 500 p/m during this time. 4 Relative humidity of test atmosphere will be 95 ±3pct; temperature of test atmosphere entering the test fixture will be 0 ±2.5 °C¥0 °C. 5 Test conditions and requirements will be applicable as shown in this table. 6 Test conditions and requirements will be applicable as shown in this table, except the minimum service lives for acid gas, organic vapor, and ammonia will be 6 min instead of 12 min.

TABLE 6—CANISTER BENCH TESTS AND REQUIREMENTS FOR CHIN-STYLE GAS MASK CANISTERS [42 CFR part 84, subpart I]

Test atmosphere Maximum allowable Minimum Concentra- Flow rate Number penetra- service Canister type Test condition of tests tion (parts life (min- Gas or vapor tion (parts (liters per 1 per million) minute) per mil- utes) lion)

Acid gas ...... As received Equili- SO2 50,000 64 3 5 12 brated Cl2 5,000 64 3 5 12 SO2 5,000 32 4 5 12 Cl2 5,000 32 4 5 12 Organic vapor ...... As received Equili- CCl4 5,000 64 3 5 12 brated CCl4 5,000 32 4 5 12 Ammonia ...... As received Equili- NH3 5,000 64 3 50 12 brated As received Equili- NH3 5,000 32 4 50 12 brated Carbon monoxide ...... As received CO 20,000 2 64 2 (3) 60 CO 5,000 4 32 3 (3) 60 CO 3,000 2 32 3 (3) 60 Combination of 2 or 3 of above types 5 Combination of all above types 6 1 Minimum life will be determined at the indicated penetration. 2 Relative humidity of test atmosphere will be 95 ±3pct; temperature of test atmosphere will be 25 ±2.5 °C. 3 Maximum allowable CO penetration will be 385 cm 3 during the minimum life. The penetration shall not exceed 500 p/m during this time. 4 Relative humidity of test atmosphere will be 95 ±3pct; temperature of test atmosphere entering the test fixture will be 0 ±2.5 °C¥0 °C. 5 Test conditions and requirements will be applicable as shown in this table. 6 Test conditions and requirements will be applicable as shown in this table, except the minimum service lives for acid gas, organic vapor, and ammonia will be 6 min instead of 12 min.

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TABLE 7—CANISTER BENCH TESTS AND REQUIREMENTS FOR ESCAPE GAS MASK CANISTERS [42 CFR part 84, subpart I]

Test atmosphere Maximum allowable Minimum Number penetra- service Canister type Test condition Concentra- Flow rate of tests tion (parts life (min- Gas or vapor tion (parts (liters per per mil- utes) 1 per million) minute) lion)

Acid gas ...... As received ...... SO2 5,000 64 3 5 12 Equilibrated ...... Cl2 5,000 64 3 5 12 SO2 5,000 32 4 5 12 Cl2 5,000 32 4 5 12 Organic vapor ...... As received ...... CCl4 5,000 64 3 5 12 Equilibrated ...... CCl4 5,000 32 4 5 12 Ammonia ...... As received ...... NH3 5,000 64 3 50 12 Equilibrated ...... NH3 5,000 32 4 50 12 Carbon monoxide ...... As received ...... CO 10,000 2 32 2 (3) 4 60 CO 5,000 5 32 3 (3) 60 CO 3,000 2 32 3 (3) 60 1 Minimum life will be determined at the indicated penetration. 2 Relative humidity of test atmosphere will be 95 ±3 pct; temperature of test atmosphere will be 25 ±2.5 °C. 3 Maximum allowable CO penetration will be 385 cm 3 during the minimum life. The penetration shall not exceed 500 p/m during this time. 4 If effluent temperature exceeds 100 °C during this test, the escape gas mask shall be equipped with an effective heat ex- changer. 5 Relative humidity of test atmosphere will be 95 ±3 pct; temperature of test atmosphere entering the test fixture will be 0 ±2.5 °C¥0 °C.

Subpart J—Supplied-Air with the wearer’s vision and permit Respirators easy access to the external surface of such window(s) for cleaning. § 84.130 Supplied-air respirators; de- (c) Type ‘‘B’’ supplied-air respirators. A scription. hose mask respirator, for entry into Supplied-air respirators, including and escape from atmospheres not im- all completely assembled respirators mediately dangerous to life or health, designed for use as respiratory protec- which consists of a strong large-diame- tion during entry into and escape from ter hose with low resistance to airflow atmospheres not immediately dan- through which the user draws inspired gerous to life or health are described as air by means of his lungs alone, a har- follows: ness to which the hose is attached, and (a) Type ‘‘A’’ supplied-air respirators. A a tight-fitting facepiece. hose mask respirator, for entry into (d) Type ‘‘BE’’ supplied-air respirators. and escape from atmospheres not im- A type ‘‘B’’ supplied-air respirator mediately dangerous to life or health, equipped with additional devices de- which consists of a motor-driven or signed to protect the wearer’s head and hand-operated blower that permits the neck against impact and abrasion from free entrance of air when the blower is rebounding abrasive material, and with not operating, a strong large-diameter shielding material such as plastic, hose having a low resistance to airflow, glass, woven wire, sheet metal, or a harness to which the hose and the other suitable material to protect the life-line are attached and a tight-fit- window(s) of facepieces, hoods, and hel- ting facepiece. mets which do not unduly interfere (b) Type ‘‘AE’’ supplied-air respirators. with the wearer’s vision and permit A Type ‘‘A’’ supplied-air respirator easy access to the external surface of equipped with additional devices de- such window(s) for cleaning. signed to protect the wearer’s head and (e) Type ‘‘C’’ supplied-air respirators. neck against impact and abrasion from An airline respirator, for entry into rebounding abrasive material, and with and escape from atmospheres not im- shielding material such as plastic, mediately dangerous to life or health, glass, woven wire, sheet metal, or which consists of a source of respirable other suitable material to protect the breathing air, a hose, a detachable cou- window(s) of facepieces, hoods, and hel- pling, a control valve, orifice, a de- mets which do not unduly interfere mand valve or pressure demand valve,

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an arrangement for attaching the hose suitable harness designed and con- to the wearer, and a facepiece, hood, or structed to hold the components of the helmet. respirator in position against the wear- (f) Type ‘‘CE’’ supplied-air respirators. er’s body. A type ‘‘C’’ supplied-air respirator (b) Harnesses shall be designed and equipped with additional devices de- constructed to permit easy removal signed to protect the wearer’s head and and replacement of respirator parts, neck against impact and abrasion from and where applicable, provide for hold- rebounding abrasive material, and with ing a full facepiece in the ready posi- shielding material such as plastic, tion when not in use. glass, woven wire, sheet metal, or other suitable material to protect the § 84.134 Respirator containers; min- window(s) of facepieces, hoods, and hel- imum requirements. mets which do not unduly interfere Supplied-air respirators shall be with the wearer’s vision and permit equipped with a substantial, durable easy access to the external surface of container bearing markings which such window(s) for cleaning. show the applicant’s name, the type and commercial designation of the res- § 84.131 Supplied-air respirators; re- pirator it contains, and all appropriate quired components. approval labels. (a) Each supplied-air respirator described in § 84.130 shall, where its de- § 84.135 Half-mask facepieces, full sign requires, contain the following facepieces, hoods, and helmets; fit; component parts: minimum requirements. (1) Facepiece, hood, or helmet; (a) Half-mask facepieces and full (2) Air supply valve, orifice, or de- facepieces shall be designed and con- mand or pressure-demand regulator; structed to fit persons with various fa- (3) Hand operated or motor driven air cial shapes and sizes either: blower; (1) By providing more than one face- (4) Air supply hose; piece size; or (5) Detachable couplings; (2) By providing one facepiece size (6) Flexible breathing tube; and which will fit varying facial shapes and (7) Respirator harness. sizes. (b) The component parts of each sup- (b) Full facepieces shall provide for plied-air respirator shall meet the min- optional use of corrective spectacles or imum construction requirements set lenses, which shall not reduce the res- forth in subpart G of this part. piratory protective qualities of the respirator. § 84.132 Breathing tubes; minimum re- (c) Hoods and helmets shall be de- quirements. signed and constructed to fit persons Flexible breathing tubes used in con- with various head sizes, provide for the junction with supplied-air respirators optional use of corrective spectacles or shall be designed and constructed to lenses, and insure against any restric- prevent: tion of movement by the wearer. (a) Restriction of free head move- (d) Facepieces, hoods, and helmets ment; shall be designed to prevent eyepiece (b) Disturbance of the fit of fogging. facepieces, mouthpieces, hoods, or helmets; § 84.136 Facepieces, hoods, and hel- (c) Interference with the wearer’s ac- mets; eyepieces; minimum require- tivities; and ments. (d) Shutoff of airflow due to kinking, (a) Facepieces, hoods, and helmets or from chin or arm pressure. shall be designed and constructed to provide adequate vision which is not § 84.133 Harnesses; installation and distorted by the eyepiece. construction; minimum require- (b) All eyepieces except those on ments. Types B, BE, C, and CE supplied-air (a) Each supplied-air respirator shall, respirators shall be designed and con- where necessary, be equipped with a structed to be impact and penetration

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resistant. Federal Specification, Mask, § 84.139 Head and neck protection; Air Line: and Respirator, Air Filtering, supplied-air respirators; minimum Industrial, GGG-M-125d, October 11, requirements. 1965 with interim amendment-1, July Type AE, BE, and CE supplied-air 30, 1969, is an example of an appropriate respirators shall be designed and con- standard for determining impact and structed to provide protection against penetration resistance. Copies of GGG- impact and abrasion from rebounding M-125d may be obtained from the abrasive materials to the wearer’s head NIOSH, National Personal Protective and neck. Technology Laboratory, P.O. Box 18070, 626 Cochrans Mill Road, Pittsburgh, PA § 84.140 Air velocity and noise levels; hoods and helmets; minimum re- 15236. quirements. (c)(1) The eyepieces of AE, BE, and Noise levels generated by the res- CE type supplied-air respirators shall pirator will be measured inside the be shielded by plastic, glass, woven hood or helmet at maximum airflow wire, sheet metal, or other suitable obtainable within pressure and hose material which does not interfere with length requirements and shall not ex- the vision of the wearer. ceed 80 dBA. (2) Shields shall be mounted and attached to the facepiece to provide easy § 84.141 Breathing gas; minimum re- access to the external surface of the quirements. eyepiece for cleaning. (a) Breathing gas used to supply supplied-air respirators shall be respirable [60 FR 30355, June 8, 1995, as amended at 80 breathing air and contain no less than FR 3907, Jan. 26, 2015] 19.5 volume-percent of oxygen. § 84.137 Inhalation and exhalation (b) Compressed, gaseous breathing air valves; check valves; minimum re- shall meet the applicable minimum quirements. grade requirements for Type I gaseous air set forth in the Compressed Gas As- (a) Inhalation and exhalation valves sociation Commodity Specification for shall be provided where necessary and Air, G–7.1, 1966 (Grade D or higher qual- protected against distortion. ity). G–7.1 is incorporated by reference (b) Exhalation valves shall be: and has been approved by the Director (1) Protected against damage and ex- of the Federal Register in accordance ternal influence; and with 5 U.S.C. 552(a) and 1 CFR part 51. (2) Designed and constructed to pre- Copies may be obtained from American vent inward leakage of contaminated National Standards Institute, Inc., 1430 air. Broadway, New York, NY 10018. Copies (c) Check valves designed and con- may be inspected at the NIOSH, Na- structed to allow airflow toward the tional Personal Protective Technology facepiece only shall be provided in the Laboratory, P.O. Box 18070, 626 Coch- connections to the facepiece or in the rans Mill Road, Pittsburgh, PA 15236, hose fitting near the facepiece of all or at the National Archives and Type A, AE, B, and BE supplied-air res- Records Administration (NARA). For information on the availability of this pirators. material at NARA, call 202–741–6030, or § 84.138 Head harnesses; minimum re- go to: http://www.archives.gov/fed- quirements. erallregister/ codeloflfederallregulations/ Facepieces shall be equipped with ad- ibrllocations.html. justable and replaceable head har- (c) Compressed, liquefied breathing nesses which are designed and con- air shall meet the applicable minimum structed to provide adequate tension grade requirements for Type II liquid during use, and an even distribution of air set forth in the Compressed Gas As- pressure over the entire area in contact sociation Commodity Specification for with the face. Air, G–7.1, 1966 (Grade B or higher quality). G–7.1 is incorporated by reference and has been approved by the Director

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of the Federal Register in accordance chamber in a fixed position in a zone of with 5 U.S.C. 552(a) and 1 CFR part 51. respirable air. Copies may be obtained from American National Standards Institute, Inc., 1430 § 84.144 Hand-operated blower test; Broadway, New York, NY 10018. Copies minimum requirements. may be inspected at the NIOSH, Na- (a) Hand-operated blowers shall be tional Personal Protective Technology tested by attaching them to a mechan- Laboratory, P.O. Box 18070, 626 Coch- ical drive and operating them 6 to 8 rans Mill Road, Pittsburgh, PA 15236, hours daily for a period of 100 hours at or at the National Archives and a speed necessary to deliver 50 liters of Records Administration (NARA). For air per minute through each com- information on the availability of this pletely assembled respirator. Each res- material at NARA, call 202–741–6030, or pirator shall be equipped with the max- go to: http://www.archives.gov/fed- imum length of hose with which the de- erallregister/ vice is to be approved and the hose codeloflfederallregulations/ shall be connected to each blower or ibrllocations.html. manifold outlet designed for hose connections. [60 FR 30355, June 8, 1995, amended at 80 FR (b) The crank speed of the hand-oper- 3907, Jan. 26, 2015] ated blower shall not exceed 50 revolutions per minute in order to deliver the § 84.142 Air supply source; hand-operated or motor driven air blowers; required 50 liters of air per minute to Type A supplied-air respirators; each facepiece. minimum requirements. (c) The power required to deliver 50 liters of air per minute to each wearer (a) Blowers shall be designed and con- through the maximum length of hose structed to deliver an adequate amount shall not exceed one-fiftieth horse- of air to the wearer with either direc- power, and the torque shall not exceed tion of rotation, unless constructed to a force of 2.3 kg. (5 pounds) on a 20 cm. permit rotation in one direction only, (8-inch) crank, as defined in § 84.146. and to permit the free entrance of air (d) The blower shall operate through- to the hose when the blower is not op- out the period without failure or indi- erated. cation of excessive wear of bearings or (b) No multiple systems, whereby other working parts. more than one user is supplied by one blower, will be approved, unless each § 84.145 Motor-operated blower test; hose line is connected directly to a minimum requirements. manifold at the blower. (a) Motor-operated blowers shall be tested by operating them at their spec- § 84.143 Terminal fittings or chambers; Type B supplied-air respirators; ified running speed 6 to 8 hours daily minimum requirements. for a period of 100 hours when assembled with the kind and maximum (a) Blowers or connections to air sup- length of hose for which the device is plies providing positive pressures shall to be approved and when connected to not be approved for use on Type B sup- each blower or manifold outlet de- plied-air respirators. signed for hose connections. (b) Terminal fittings or chambers (b) The connection between the employed in Type B supplied-air res- motor and the blower shall be so con- pirators, shall be: structed that the motor may be dis- (1) Installed in the inlet of the hose. engaged from the blower when the (2) Designed and constructed to pro- blower is operated by hand. vide for the drawing of air through cor- (c) The blower shall operate through- rosion resistant material arranged so out the period without failure or indi- as to be capable of removing material cation of excessive wear of bearings or larger than 0.149 mm. in diameter (149 other working parts. micrometers, 100-mesh, U.S. Standard (d) Where a blower, which is ordi- sieve). narily motor driven, is operated by (3) Installed to provide a means for hand, the power required to deliver 50 fastening or anchoring the fitting or liters of air per minute to each wearer

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through the maximum length of hose with about 12 m. (40 feet) of No. 2 pic- shall not exceed one-fiftieth horse- ture cord, b. A weight, c, of sufficient power, and the torque shall not exceed mass to rotate the blower at the de- a force of 2.3 kg. (5 pounds) on a 20 cm. sired speed is suspended from this wire (8-inch) crank, as defined in § 84.146. cord. A mark is made on the cord about (e) Where the respirator is assembled 3 to 4.5 m. (10 to 15 feet) from the with the facepiece and 15 m. (50 feet) of weight, c. Another mark is placed at a the hose for which it is to be approved, measured distance (6–9 m./20–30 feet is and when connected to one outlet with convenient) from the first. These are all other outlets closed and operated at used to facilitate timing. To determine a speed not exceeding 50 revolutions of the torque or horsepower required to the crank per minute, the amount of operate the blower, the drum is started air delivered into the respiratory-inlet in rotation manually at or slightly covering shall not exceed 150 liters per above the speed at which the power minute. measurement is to be made. The blower is then permitted to assume constant § 84.146 Method of measuring the speed, and then as the first mark on power and torque required to oper- the wire leaves the drum, a stopwatch ate blowers. is started. The watch is stopped when As shown in Figure 1 of this section, the second mark leaves the drum. the blower crank is replaced by a wood- From these data the foot-pounds per en drum, a (13 cm. (5 inches) in diame- minute and the torque may be cal- ter is convenient). This drum is wound culated.

FIGURE 1—APPARATUS FOR MEASURING POWER REQUIRED TO OPERATE BLOWER. (42 CFR PART 84, SUBPART J, § 84.146)

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§ 84.147 Type B supplied-air res- system from exceeding 863 kN/m.2 (125 pirator; minimum requirements. pounds per square inch gage). No Type B supplied-air respirator (2) The pressure-release mechanism shall be approved for use with a blower shall be set to operate at a pressure not or with connection to an air supply de- more than 20 percent above the manu- vice at positive pressures. facturer’s highest specified pressure. For example, if the highest specified § 84.148 Type C supplied-air res- pressure is 863 kN/m.2 (125 pounds per pirator, continuous flow class; min- square inch), the pressure-release imum requirements. mechanism would be set to operate at (a) Respirators tested under this sec- a maximum of 1,035 kN/m.2 (150 pounds tion shall be approved only when they per square inch). supply respirable air at the pressures and quantities required. § 84.150 Air-supply line tests; minimum (b) The pressure at the inlet of the requirements. hose connection shall not exceed 863 Air supply lines employed on Type A, kN/m.2 (125 pounds per square inch gage). Type B, and Type C supplied-air res- (c) Where the pressure at any point pirators shall meet the minimum test in the supply system exceeds 863 kN/ requirements set forth in Table 8 of m.2 (125 pounds per square inch gage), this subpart. the respirator shall be equipped with a pressure-release mechanism that will § 84.151 Harness test; minimum re- prevent the pressure at the hose con- quirements. nection from exceeding 863 kN/m.2 (125 (a)(1) Shoulder straps employed on pounds per square inch gage) under any Type A supplied-air respirators shall be conditions. tested for strength of material, joints, and seams and must separately with- § 84.149 Type C supplied-air res- stand a pull of 113 kg. (250 pounds) for pirator, demand and pressure de- 30 minutes without failure. mand class; minimum requirements. (2) Belts, rings, and attachments for life lines must withstand a pull of 136 (a) Respirators tested under this sec- kg. (300 pounds) for 30 minutes without tion shall be approved only when used to supply respirable air at the pres- failure. sures and quantities required. (3) The hose shall be firmly attached (b) The manufacturer shall specify to the harness so as to withstand a pull the range of air pressure at the point of of 113 kg. (250 pounds) for 30 minutes attachment of the air-supply hose to without separating, and the hose at- the air-supply system, and the range of tachments shall be arranged so that hose length for the respirator. For ex- the pull or drag of the hose behind an ample, he might specify that the res- advancing wearer does not disarrange pirator be used with compressed air at the harness or exert pull upon the face- pressures ranging from 280–550 kN/m.2 piece. (40 to 80 pounds per square inch) with (4) The arrangement and suitability from 6 to 76 m. (15 to 250 feet) of air- of all harness accessories and fittings supply hose. will be considered. (c) The specified air pressure at the (b)(1) The harness employed on Type point of attachment of the hose to the B supplied-air respirators shall not be air-supply system shall not exceed 863 uncomfortable, disturbing, or interfere 2 kN/m. (125 pounds per square inch with the movements of the wearer. gage). (2) The harness shall be easily adjust- (d)(1) Where the pressure in the air- supply system exceeds 863 kN/m.2 (125 able to various sizes. pounds per square inch gage), the res- (3) The hose shall be attached to the pirator shall be equipped with a pres- harness in a manner that will with- sure-release mechanism that will pre- stand a pull of 45 kg. (100 pounds) for 30 vent the pressure at the point of at- minutes without separating or showing tachment of the hose to the air-supply signs of failure.

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(4) The design of the harness and at- arm pressure, and shall not create a tachment of the line shall permit drag- pull that will loosen the facepiece or ging the maximum length of hose con- disturb the wearer. sidered for approval over a concrete floor without disarranging the harness § 84.153 Airflow resistance test, Type A or exerting a pull on the facepiece. and Type AE supplied-air res- (5) The arrangement and suitability pirators; minimum requirements. of all harness accessories and fittings (a) Airflow resistance will be deter- will be considered. mined when the respirator is com- (c) The harness employed on Type C pletely assembled with the respiratory- respirators shall be similar to that re- inlet covering, the air-supply device, quired on the Type B respirator, or, it and the maximum length of air-supply may consist of a simple arrangement hose coiled for one-half its length in for attaching the hose to a part of the loops 1.5 to 2.1 m. (5 to 7 feet) in diame- wearer’s clothing in a practical manner ter. that prevents a pull equivalent to drag- ging the maximum length of the hose (b) The inhalation resistance, drawn over a concrete floor from exerting pull at the rate of 85 liters (3 cubic feet) per upon the respiratory-inlet covering. minute when the blower is not oper- (d) Where supplied-air respirators ating or under any practical condition have a rigid or partly rigid head cov- of blower operation shall not exceed ering, a suitable harness shall be re- the following amounts: quired to assist in holding this cov- Maximum length of hose for Maximum resistance, water ering in place. which respirator is approved column height § 84.152 Breathing tube test; minimum Feet Meters Inches Millimeters requirements. 75 23 1.5 38 (a)(1) Type A and Type B supplied-air 150 46 2.5 64 respirators shall employ one or two 250 76 3.5 89 flexible breathing tubes of the 300 91 4.0 102 nonkinking type which extend from the facepiece to a connecting hose cou- (c) The exhalation resistance shall pling attached to the belt or harness. not exceed 25 mm. (1 inch) of water-col- (2) The breathing tubes employed umn height at a flow rate of 85 liters (3 shall permit free head movement, in- cubic feet) per minute when the blower sure against closing off by kinking or is not operating or under any practical by chin or arm pressure, and they shall condition of blower operation. not create a pull that will loosen the facepiece or disturb the wearer. § 84.154 Airflow resistance test; Type B (b) Breathing tubes employed on and Type BE supplied-air res- Type C supplied-air respirators of the pirators; minimum requirements. continuous flow class shall meet the (a) Airflow resistance shall be deter- minimum requirements set forth in mined when the respirator is com- paragraph (a) of this section, however, pletely assembled with the respiratory- an extension of the connecting hose inlet covering and the hose in the max- may be employed in lieu of the breath- imum length to be considered for ap- ing tubes required. proval, coiled in loops 1.5 to 2.1 m. (5 to (c)(1) A flexible, nonkinking type 7 feet) in diameter. breathing tube shall: (b) Airflow resistance shall not ex- (i) Be employed on Type C supplied- ceed 38 mm. (1.5 inches) of water-col- air respirators of the demand and pres- umn height to air drawn at the flow sure-demand class; and (ii) Extend from the facepiece to the rate of 85 liters (3 cubic feet) per demand or pressure-demand valve, ex- minute. cept where the valve is attached di- (c) The exhalation resistance shall rectly to the facepiece. not exceed 25 mm. (1 inch) of water-col- (2) The breathing tube shall permit umn height at this flow rate. free head movement, insure against closing off by kinking or by chin or

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§ 84.155 Airflow resistance test; Type C The freedom and comfort allowed the supplied-air respirator, continuous wearer will also be considered. flow class and Type CE supplied-air (c) Time during the test period will respirator; minimum requirements. be divided as follows: The resistance to air flowing from (1) Five minutes. Walking, turning the respirator shall not exceed 25 mm. head, dipping chin; and (1 inch) of water-column height when (2) Five minutes. Pumping air with a the air flow into the respiratory-inlet tire pump into a 28-liter (1 cubic foot) covering is 115 liters (4 cubic feet) per container, or equivalent work. minute. (d) No odor of the test gas or vapor § 84.156 Airflow resistance test; Type C shall be detected by the wearer in the supplied-air respirator, demand air breathed during any such test, and class; minimum requirements. the wearer shall not be subjected to (a) Inhalation resistance shall not ex- any undue discomfort or encumbrance ceed 50 millimeters (2 inches) of water because of the fit, air delivery, or other at an air flow of 115 liters (4 cubic feet) features of the respirator during the per minute. testing period. (b) The exhalation resistance to a flow of air at a rate of 85 liters (3 cubic § 84.160 Man test for gases and vapors; feet) per minute shall not exceed 25 Type A and Type AE respirators; millimeters (1 inch) of water. test requirements. (a) The completely assembled res- § 84.157 Airflow resistance test; Type C pirator will be worn in a chamber con- supplied-air respirator, pressure- taining 0.1 ±0.025 percent isoamyl ace- demand class; minimum requirements. tate vapor, and the blower, the intake of the hose, and not more than 25 per- (a) The static pressure in the face- cent of the hose length will be located piece shall not exceed 38 mm. (1.5 in isoamyl acetate-free air. inches) of water-column height. (b) The man in the isoamyl acetate (b) The pressure in the facepiece atmosphere will draw his inspired air shall not fall below atmospheric at inhalation airflows less than 115 liters (4 through the hose, connections, and all cubic feet) per minute. parts of the air device by means of his (c) The exhalation resistance to a lungs alone (blower not operating). flow of air at a rate of 85 liters (3 cubic (c) The 10-minute work test will be feet) per minute shall not exceed the repeated with the blower in operation static pressure in the facepiece by at any practical speed up to 50 revolu- more than 51 mm. (2 inches) of water- tions of the crank per minute. column height. § 84.161 Man test for gases and vapors; § 84.158 Exhalation valve leakage test. Type B and Type BE respirators; test requirements. (a) Dry exhalation valves and valve seats will be subjected to a suction of (a) The completely assembled res- 25 mm. water-column height while in a pirator will be worn in a chamber con- normal operating position. taining 0.1 ±0.025 percent isoamyl ace- (b) Leakage between the valve and tate vapor, and the intake of the hose, valve seat shall not exceed 30 milli- and not more than 25 percent of the liters per minute. hose length will be located in isoamyl acetate-free air. § 84.159 Man tests for gases and va- (b) The man in the isoamyl acetate pors; supplied-air respirators; general performance requirements. atmosphere will draw his inspired air through the hose and connections by (a) Wearers will enter a chamber con- means of his lungs alone. taining a gas or vapor as prescribed in §§ 84.160, 84.161, 84.162, and 84.163. (b) Each wearer will spend 10 minutes in work to provide observations on freedom of the device from leakage.

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§ 84.162 Man test for gases and vapors; (c) The test will be repeated with the Type C respirators, continuous-flow maximum rate of flow attainable with- class and Type CE supplied-air res- in specified operating pressures. pirators; test requirements. (a) The completely assembled res- § 84.163 Man test for gases and vapors; pirator will be worn in a chamber con- Type C supplied-air respirators, de- taining 0.1 ±0.025 percent isoamyl ace- mand and pressure-demand classes; tate vapor, the intake of the hose will test requirements. be connected to a suitable source of (a) The completely assembled res- respirable air, and not more than 25 pirator will be worn in a chamber con- percent of the hose length will be lo- taining 0.1 ±0.025 percent isoamyl ace- cated in isoamyl acetate-free air. tate vapor, the intake of the hose will (b) The minimum flow of air required be connected to a suitable source of to maintain a positive pressure in the respirable air, and not more than 25 respiratory-inlet covering throughout percent of the hose length will be lo- the entire breathing cycle will be sup- cated in isoamyl acetate-free air. plied to the wearer, provided however, that airflow shall not be less than 115 (b) The test will be conducted at the liters per minute for tight-fitting and minimum pressure with the maximum not less than 170 liters per minute for hose length and will be repeated at the loose-fitting respiratory inlet-cov- maximum pressure with the minimum erings. hose length.

TABLE TO SUBPART J OF PART 84

TABLE 8—AIR-SUPPLY-LINE REQUIREMENTS AND TESTS [42 CFR part 84, subpart J]

Requirements for the air-supply lines of the indicated type of supplied-air respirators Specific requirements Type A Type B Type C

Length of hose ...... Maximum of 91 m. (300 Maximum of 23 m. (75 Maximum of 91 m. (300 feet) in multiples of 7.6 feet), in multiples of feet) in multiples of m. (25 feet). It will be permissible for the ap- 7.6 m. (25 feet). 7.6 m. (25 feet). plicant to supply hose of the approved type of shorter length than 7.6 m. (25 feet) provided it meets the requirements of the part. Air flow ...... None ...... None ...... The air-supply hose with air regulating valve or orifice shall permit a flow of not less than 115 liters (4 cubic feet) per minute to tight-fitting and 170 liters (6 cubic feet) per minute to loose-fitting respiratory-inlet coverings through the maximum length of hose for which approval is granted and at the minimum specified air-supply pressure. The maximum flow shall not exceed 425 liters (15 cubic feet) per minute at the maximum specified air-supply pressure with the minimum length of hose for which approval is granted.

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TABLE 8—AIR-SUPPLY-LINE REQUIREMENTS AND TESTS—Continued [42 CFR part 84, subpart J]

Requirements for the air-supply lines of the indicated type of supplied-air respirators Specific requirements Type A Type B Type C

Air flow ...... do ...... do ...... The air-supply hose, detachable coupling, and demand valve of the demand class or pressure-demand valve of the pressure-demand class for Type C supplied-air respirators, demand and pressure-demand classes, shall be capable of delivering respirable air at a rate of not less than 115 liters (4 cubic feet) per minute to the respiratory-inlet covering at an inhalation resistance not exceeding 50 millimeters (2 inches) of water-column height measured in the respiratory-inlet covering with any combination of air-supply pressure and length of hose within the applicant’s specified range of pressure and hose length. The airflow rate and resistance to inhalation shall be measured while the demand or pressure-demand valve is actuated 20 times per minute by a source of intermittent suction. The maximum rate of flow to the respiratory-inlet covering shall not exceed 425 liters (15 cubic feet) per minute under the specified operating conditions. Air-regulating valve ...... do ...... do ...... If an air-regulating valve is provided, it shall be so designed that it will remain at a specific adjustment, which will not be affected by the ordinary movement of the wearer. The valve must be so constructed that the air supply with the maximum length of hose and at the minimum specified air-supply pressure will not be less than 115 liters (4 cubic feet) of air per minute to tight-fitting and 170 liters (6 cubic feet) of air per minute of loose-fitting respiratory inlet coverings for any adjustment of the valve. If a demand or pressure-demand valve replaces the air-regulating valve, it shall be connected to the air-supply at the maximum air pressure for which approval is sought by means of the minimum length of air-supply hose for which approval is sought. The outlet of the demand or pressure-demand valve shall be connected to a source of intermittent suction so that the demand or pressure-demand valve is actuated approximately 20 times per minute for a total of 100,000 inhalations. To expedite this test, the rate of actuation may be increased if mutually agree- able to the applicant and NIOSH. During this test the valve shall function without failure and without excessive wear of the moving parts. The demand or pressure-demand valve shall not be damaged in any way when subjected at the outlet to a pressure or suction of 25 cm. (10 inches) of water gage for 2 minutes. Noncollapsibility ...... The hose shall not col- Same as Type A ...... None. lapse or exhibit per- manent deformation when a force of 90 kg. (200 pounds) is applied for 5 minutes between 2 planes 7.6 cm. (3 inches) wide on opposite sides of the hose.

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TABLE 8—AIR-SUPPLY-LINE REQUIREMENTS AND TESTS—Continued [42 CFR part 84, subpart J]

Requirements for the air-supply lines of the indicated type of supplied-air respirators Specific requirements Type A Type B Type C

Nonkinkability ...... None ...... None ...... A 7.6 m. (25 foot) section of the hose will be placed on a horizontal-plane surface and shaped into a one-loop coil with one end of the hose connected to an airflow meter and the other end of the hose supplied with air at the minimum specified supply pressure. The connection shall be in the plane of the loop. The other end of the hose will be pulled tan- gentially to the loop and in the plane of the loop until the hose straightens. To meet the requirements of this test the loop shall maintain a uniform near-circular shape and ulti- mately unfold as a spiral, without any local- ized deformation that decreases the flow of air to less than 90 percent of the flow when the hose is tested while remaining in a straight line. Strength of hose and Hose and couplings Same as Type A ...... Hose and couplings shall not exhibit any sepa- couplings. shall not separate or ration or failure when tested with a pull of 45 fail when tested with kg. (100 pounds) for 5 minutes and when a pull of 113 kg. (250 tested by subjecting them to an internal air pounds) for 5 minutes. pressure of 2 times the maximum respirator- supply pressure that is specified by the applicant or at 173 kN/m. 2 (25 pounds per square inch) gage, whichever is higher. Tightness ...... No air leakage shall None ...... Leakage of air exceeding 50 cc. per minute at occur when the hose each coupling shall not be permitted when the and couplings are hose and couplings are joined and are im- joined and the joint(s) mersed in water, with air flowing through the are immersed in respirator under a pressure of 173 kN/m. 2 water and subjected (25 pounds per square inch) gage applied to to an internal air the inlet end of the air-supply hose, or at pressure of 35 kN/m. twice the maximum respirator-supply pressure 2 (5 pounds per that is specified by the applicant, whichever is square inch) gage. higher. Permeation of hose by The permeation of the Same as for Type A ..... Same as for Type A, except the test period gasoline. hose by gasoline will shall be 1 hour. be tested by immers- ing 7.6 m. (25 feet) of hose and one coupling in gasoline, with air flowing through the hose at the rate of 8 liters per minute for 6 hours. The air from the hose shall not contain more than 0.01 percent by volume of gasoline vapor at the end of the test. Detachable coupling ...... None ...... None ...... A hand-operated detachable coupling by which the wearer can readily attach or detach the connecting hose shall be provided at a convenient location. This coupling shall be durable, remain connected under all conditions of normal respirator use, and meet the prescribed tests for strength and tightness of hose and couplings.

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Subpart K—Air-Purifying (2) Powered air-purifying particulate Particulate Respirators respirators are classified into two classes, HE and PAPR100, and three series, HE, PAPR100–N, and PAPR100–P. SOURCE: 85 FR 20608, Apr. 14, 2002, unless The N-series filters are restricted to otherwise noted. use in those workplaces free of oil § 84.170 Air-purifying particulate res- aerosols. The P-series filters are in- pirators; description. tended for removal of any particulate that includes oil-based liquid particu- (a) Non-powered air-purifying particulates. late respirators (series N, R, and P). (1) (3) All three filter series, HE, Non-powered air-purifying particulate PAPR100–N, and PAPR100–P, for pow- respirators utilize the wearer’s nega- ered air-purifying particulate res- tive inhalation pressure to draw the pirators must demonstrate a minimum ambient air through the air-purifying efficiency level of 99.97 percent. filter elements (filters) to remove particulates from the ambient air. They § 84.171 Required components and at- are designed for use as respiratory pro- tributes. tection against atmospheres with par- The components of each air-purifying ticulate contaminants at concentra- particulate respirator must meet the tions that are not immediately dan- minimum construction requirements gerous to life or health and that con- set forth in subpart G of this part. tain adequate oxygen to support life. Each air-purifying particulate res- (2) Non-powered air-purifying partic- pirator described in § 84.170 must, where ulate respirators are classified into its design requires, contain the fol- three series, N-, R-, and P-series. The lowing component parts: N-series filters are restricted to use in (a) Respiratory inlet covering. (1) Tight those workplaces free of oil aerosols. fitting respiratory inlet coverings must The R- and P-series filters are intended be designed and constructed to fit per- for removal of any particulate that in- sons with various facial shapes and cludes oil-based liquid particulates. sizes either: (3) Non-powered air-purifying partic- (i) By providing more than one size; ulate respirators are classified accord- or ing to the efficiency level of the fil- (ii) By providing one size which will ter(s) as tested according to the re- fit varying facial shapes and sizes. quirements of this part. (2) Full facepieces must provide for (i) N100, R100, and P100 filters must optional use of corrective spectacles or demonstrate a minimum efficiency lenses, which must not reduce the res- level of 99.97 percent. piratory protective qualities of the res- (ii) N99, R99, and P99 filters must pirator. demonstrate a minimum efficiency (3) Loose fitting respiratory inlet level of 99 percent. coverings must be designed and con- (iii) N95, R95, and P95 filters must structed to fit persons with various demonstrate a minimum efficiency head sizes, provide for the optional use level of 95 percent. of corrective spectacles or lenses, and (b) Powered air-purifying particulate insure against any restriction of move- respirators (PAPR classes HE and ment by the wearer. PAPR100). (1) Powered air-purifying (4) Mouthpieces must be equipped particulate respirators utilize a blower with noseclips which are securely at- to move the ambient air through the tached to the mouthpiece or respirator air-purifying filter elements (filters) to and provide an airtight seal. remove particulate contaminants and (5) Respiratory inlet coverings that deliver clean air to the respiratory incorporate a lens or faceshield must inlet covering. They are designed for be designed to prevent eyepiece fog- use as respiratory protection against ging. atmospheres considered not imme- (6) Half-mask facepieces must not diately dangerous to life or health and interfere with the fit of common indus- that contain adequate oxygen to sup- trial safety spectacles, including cor- port life. rective safety spectacles.

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(7) Respiratory inlet coverings must (ii) PAPR100–N filters must be la- be designed and constructed to provide beled as ‘‘PAPR100–N Particulate Fil- adequate vision which is not distorted ter (99.97% filter efficiency level)’’ and by the eyepieces. must be color coded magenta. (b) Filter unit. The respirator manu- (iii) PAPR100–P filters must be la- facturer, as part of the application for beled as ‘‘PAPR100–P Particulate Fil- certification, must specify the filter se- ter (99.97% filter efficiency level)’’ and ries and the filter efficiency level (i.e., must be color coded magenta. ‘‘N95,’’ ‘‘R95,’’ ‘‘P95,’’ ‘‘N99,’’ ‘‘R99,’’ (c) Valves. (1) Inhalation and exhala- ‘‘P99,’’ ‘‘N100,’’ ‘‘R100,’’ ‘‘P100,’’ ‘‘HE,’’ tion valves must be protected against ‘‘PAPR100–N’’ or ‘‘PAPR100–P’’) for distortion. which certification is being sought. (2) Inhalation valves must be de- (1) Filters for non-powered res- signed and constructed and provided pirators (series N, R, and P) must be where necessary to prevent excessive prominently labeled as follows: exhaled air from adversely affecting (i) N100 filters must be labeled ‘‘N100 filters, except where filters are specifi- Particulate Filter (99.97% filter effi- cally designed to resist moisture. ciency level)’’ and must be a color (3) Exhalation valves must be: other than magenta. (i) Provided where necessary; (ii) R100 filters must be labeled ‘‘R100 (ii) Protected against damage and ex- Particulate Filter (99.97% filter effi- ternal influence; and ciency level)’’ and must be a color (iii) Designed and constructed to pre- other than magenta. vent inward leakage of contaminated (iii) P100 filters must be labeled air. ‘‘P100 Particulate Filter (99.97% filter (d) Head harness. (1) All facepieces efficiency level)’’ and must be color must be equipped with head harnesses coded magenta. designed and constructed to provide adequate tension during use and an (iv) N99 filters must be labeled ‘‘N99 even distribution of pressure over the Particulate Filter (99% filter efficiency entire area in contact with the face. level)’’ and must be a color other than (2) Facepiece head harnesses, except magenta. those employed on filtering facepiece (v) R99 filters must be labeled ‘‘R99 respirators, must be adjustable and re- Particulate Filter (99% filter efficiency placeable. level)’’ and must be a color other than (3) Mouthpieces must be equipped, magenta. where applicable, with adjustable and (vi) P99 filters must be labeled ‘‘P99 replaceable harnesses, designed and Particulate Filter (99% filter efficiency constructed to hold the mouthpiece in level)’’ and must be a color other than place. magenta. (e) Breathing tube. Flexible breathing (vii) N95 filters must be labeled as tubes used in conjunction with res- ‘‘N95 Particulate Filter (95% filter effi- pirators must be designed and con- ciency level)’’ and must be a color structed to prevent: other than magenta. (1) Restriction of free head move- (viii) R95 filters must be labeled as ment; ‘‘R95 Particulate Filter (95% filter effi- (2) Disturbance of the fit of ciency level)’’ and must be a color facepieces, mouthpieces, or loose fit- other than magenta. ting respiratory-inlet covering; (ix) P95 filters must be labeled as (3) Interference with the wearer’s ac- ‘‘P95 Particulate Filter (95% filter effi- tivities; and ciency level)’’ and must be a color (4) Shutoff of airflow due to kinking, other than magenta. or from chin or arm pressure. (2) Filters for powered respirators (f) Drink tube. (1) For particulate res- (classes HE and PAPR100) must be pirators equipped with a drink tube, prominently labeled as follows: the respirator must meet all require- (i) HE filters must be labeled as ‘‘HE ments of the standard with the drink Particulate Filter (99.97% filter effi- tube in place. ciency level)’’ and must be color coded (2) Dry drinking tube assembly will magenta. be subjected to a suction of 75 mm

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water column height while in a normal inside the respiratory inlet covering operating position (closed). falls below the minimum air flow de- (3) Leakage through the drinking fined in § 84.175. tube assembly must not exceed 30 mL (2) Any warning must be detectable per minute. by the wearer without any interven- (g) Container. (1) Except as provided tion by the wearer. in paragraph (b) of this section, each (3) Warning devices must be config- respirator must be equipped with a sub- ured so that they may not be de-ener- stantial, durable container bearing gized while the blower is energized. markings which show the applicant’s (4) During use, warning devices must name, the type of respirator it con- not switch off automatically and must tains, and all appropriate approval la- not be capable of being switched off by bels. the wearer. (2) Containers for respirators may (5) Any warnings which require dif- provide for storage of more than one ferent reactions by the wearer must be respirator; however, such containers distinguishable from one another. must be designed and constructed to (6) If the warning provided is audible prevent contamination of respirators only, or other warnings are not readily which are not removed, and to prevent apparent to the wearer, the minimum damage to respirators during transit. sound level must be 80 dBA. (h) Harness. (1) Each respirator must, where necessary, be equipped with a § 84.172 Airflow resistance test. suitable harness designed and con- (a) Resistance to airflow will be structed to hold the components of the measured in the tight-fitting res- respirator in position against the wear- piratory inlet covering of a complete er’s body. particulate respirator mounted on a (2) Harnesses must be designed and test fixture with air flowing at contin- constructed to permit easy removal uous rate of 85 ±2 liters per minute, be- and replacement of respirator parts, fore each test conducted in accordance and, where applicable, provide for hold- with § 84.173. ing a full facepiece in the ready posi- (b) Resistance of a complete tight-fit- tion when not in use. ting powered air-purifying particulate (i) Attached blower—PAPR classes HE respirator system will be measured and PAPR100. Blowers must be designed with the blower off if the manufacturer to achieve the air flow rates required indicates that the respirator should by the testing standards in § 84.175. not be doffed in the event of a blower (j) Low-flow warning device—PAPR failure. class PAPR100. (1) The design must in- (c) The maximum allowable resist- clude a low-flow warning. It must ac- ance requirements for air-purifying tively and readily indicate when flow particulate respirators are as follows:

MAXIMUM RESISTANCE [mm water-column height]

Inhalation Respirator type Exhalation Initial Final

Non-Powered (N, R, and P) ...... 35 N/A 25 Powered (tight fitting) (HE class and PAPR100 class) ...... 50 70 20

§ 84.173 Exhalation valve leakage test. § 84.174 Filter efficiency level deter- (a) Dry exhalation valves and valve mination test—non-powered series N, R, and P filtration. seats will be subjected to a suction of 25 mm water-column height while in a (a) Twenty filters of each non-pow- normal operating position. ered air-purifying particulate res- (b) Leakage between the valve and pirator model will be tested for filter valve seat must not exceed 30 mL per efficiency against: minute.

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(1) A solid sodium chloride particu- ing when the 200 ± 5 mg challenge point late aerosol as per this section, if N-se- is reached, the test will be continued ries certification is requested by the until there is no further decrease in ef- applicant. ficiency. (2) A dioctyl phthalate (DOP) or (g) The sodium chloride test aerosol equivalent liquid particulate aerosol as will have a particle size distribution per this section, if R-series or P-series with count median diameter of 0.075 ± certification is requested by the appli- 0.020 μm and a standard geometric devi- cant. ation not exceeding 1.86 at the specified (b) Filters including holders and gas- test conditions as determined with a kets, when separable, will be tested for scanning mobility particle sizer or filter efficiency level, as mounted on a equivalent. The DOP aerosol will have test fixture in the manner as used on a particle size distribution with count the respirator. median diameter of 0.185 ± 0.020 μm and (c) Prior to filter efficiency testing of a standard geometric deviation not ex- 20 N-series filters, the 20 to be tested ceeding 1.60 at the specified test condi- will be taken out of their packaging tions as determined with a scanning and placed in an environment of 85 ± 5 mobility particle sizer or equivalent. percent relative humidity at 38 ± 2.5 °C (h) The efficiency of the filter will be for 25 ± 1 hours. Following the pre-con- monitored and recorded throughout the ditioning, filters will be sealed in a test period by a suitable forward-light- gas-tight container and tested within scattering photometer or equivalent 10 hours. instrumentation. (d) When the filters do not have sepa- (i) The minimum efficiency for each rable holders and gaskets, the exhala- of the 20 filters will be determined and tion valves will be blocked so as to en- recorded and must be equal to or great- sure that leakage, if present, is not in- er than the filter efficiency criterion cluded in the filter efficiency level listed for each level as follows: evaluation. Efficiency (e) For non-powered air-purifying Filter series (%) particulate respirators with a single P100, R100, N100 ...... ≥99.97 filter, filters will be tested at a contin- P99, R99, N99 ...... ≥99 uous airflow rate of 85 ± 4 liters per P95, R95, N95 ...... ≥95 minute. Where filters are to be used in pairs, the test-aerosol airflow rate will § 84.175 Instantaneous filter efficiency be 42.5 ± 2 liters per minute through level determination test—PAPR se- each filter. ries HE, PAPR100–N, and PAPR100– (f) Filter efficiency test aerosols: P filtration. (1) When testing N-series filters, a so- (a) Three filters from each powered dium chloride or equivalent solid aer- air-purifying particulate respirator for osol at 25 ± 5 °C and relative humidity efficiency will be tested against a neat of 30 ± 10 percent that has been neutral- cold-nebulized dioctyl phthalate (DOP) ized to the Boltzmann equilibrium or equivalent aerosol at 25 ± 5 °C that state will be used. Each filter will be has been neutralized to the Boltzmann challenged with a concentration not equilibrium state. exceeding 200 mg/m3. (b) Single air-purifying particulate (2) When testing R-series and P-series respirator filter units will be tested in filters, a neat cold-nebulized dioctyl an atmosphere concentration of 100 mg/ phthalate (DOP) or equivalent aerosol m3 of DOP at the following continuous at 25 ± 5 °C that has been neutralized to flow rates for a period of 5 to 10 sec- the Boltzmann equilibrium state will onds: be used. Each filter will be challenged Airflow rate with a concentration not exceeding 200 Type of respiratory inlet (liters per mg/m3. covering minute) (3) The test will continue until min- Tight-fitting ...... 115 imum efficiency is achieved or until an Loose-fitting ...... 170 aerosol mass of at least 200 ± 5 mg has contacted the filter. For P-series fil- (c) Powered air-purifying particulate ters, if the filter efficiency is decreas- respirators with multiple filter units

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will be tested by dividing the flow rate phere containing 20–40 mg/m3 corn oil specified in paragraph (b) of this sec- aerosol having a mass median aero- tion by the total number of filters dynamic diameter of 0.4 to 0.6 μm. used. (1) The following activities will be (d) The filter will be mounted on a performed by each wearer in the test connector in the same manner as used chamber: on the respirator and the total effi- (i) Two minutes, nodding and turning ciency must be ≥99.97 percent. head; (ii) Two minutes, calisthenic arm § 84.176 Fit test—PAPR classes HE and movements; PAPR100. (iii) Two minutes, running in place; NIOSH will assess powered air-puri- and fying respirator fit using either (iv) Two minutes, pumping with a isoamyl acetate or generated aerosol. tire pump into a 28-liter (1 ft3) con- (a) Isoamyl acetate (IAA) fit test. The tainer. applicant must provide a charcoal- (2) The respiratory inlet covering will filled canister or cartridge of a size and be adjusted, according to the appli- resistance similar to the filter unit cant’s instructions, to each wearer’s with connectors which can be attached face. to the facepiece in the same manner as (3) The appropriate fit factor must be the filter unit. exceeded during the entire test. (1) The canister or cartridge will be used in place of the filter unit, and per- § 84.177 Total noise level test—PAPR sons will each wear a modified half- classes HE and PAPR100. mask facepiece for 8 minutes in a test chamber containing 100 parts (by vol- Noise levels generated by any pow- ume) of isoamyl acetate vapor per mil- ered air-purifying respirators that lion parts of air. cover the ears (i.e., hood or helmet) (i) The following work schedule will will be measured at the entrance to be performed by each wearer in the test each ear at maximum airflow obtain- chamber: able and must not exceed 80 dBA. (A) Two minutes nodding up and § 84.178 Breath response type, airflow down, and turning head side to side; resistance test—PAPR classes HE and and PAPR100. (B) Two minutes calisthenic arm movements. Resistance to airflow will be meas- (C) Two minutes running in place. ured with a breathing machine as de- (D) Two minutes pumping with tire scribed in § 84.88. pump. (a) Minimum inhalation resistance (ii) The facepiece must be capable of must be greater than zero mm of adjustment, according to the appli- water-column height. cant’s instructions, to each wearer’s (b) Maximum exhalation resistance face, and the odor of isoamyl acetate must be less than 89 mm of water-col- must not be detectable by any wearer umn height. during the test. (2) Where the respirator is equipped § 84.179 Silica dust loading test—PAPR series HE filtration. with a full facepiece, hood, helmet, or mouthpiece, the canister or cartridge (a) Three powered air-purifying par- will be used in place of the filter unit, ticulate respirators will be tested for a and persons will each wear the modi- period of 4 hours each at a flowrate not fied respiratory inlet covering for 8 less than 115 liters per minute for minutes in a test chamber containing tight-fitting facepieces, and not less 500 parts (by volume) of isoamyl ace- than 170 liters per minute for loose-fit- tate vapor per million parts of air, per- ting hoods and helmets. forming the work schedule specified in (b) The relative humidity in the test paragraph (b)(2) of this section. chamber will be 20–80 percent, and the (b) Generated aerosol fit test. The pow- room temperature approximately 25 °C. ered air-purifying particulate res- (c) The test suspension in the cham- pirator system is tested in an atmos- ber will not be less than 50 nor more

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than 60 mg of flint (99 + percent free ter will be challenged with a con- silica) per m3 of air. centration not exceeding 200 mg/m3. (d) The flint in suspension will be 99 (ii) The sodium chloride test aerosol + percent through a 270-mesh sieve. will have a particle size distribution (e) The particle-size distribution of with count median diameter of 0.075 the test suspension will have a geo- ±0.020 μm and a standard geometric de- metric mean of 0.4 to 0.6 μm and the viation not exceeding 1.86 at the speci- standard geometric deviation will not fied test conditions as determined with exceed 2. a scanning mobility particle sizer or (f) The total amount of unretained equivalent. test suspension in samples taken dur- (2) Series PAPR100–P filters: ing testing must not exceed 14.4 mg for (i) A neat cold-nebulized dioctyl a powered air-purifying particulate res- phthalate (DOP) or equivalent aerosol pirator with tight-fitting facepiece, at 25 ± 5 °C that has been neutralized to and 21.3 mg for a powered air-purifying the Boltzmann equilibrium state will particulate respirator with loose-fit- be used. Each filter will be challenged ting hood or helmet. with a concentration not exceeding 200 mg/m3. § 84.180 Particulate loading test— (ii) The DOP aerosol shall have a par- PAPR series PAPR100–N and ticle size distribution with count me- PAPR100–P filtration. dian diameter of 0.185 ±0.020 μm and a (a) Twenty filters of each powered standard geometric deviation not ex- air-purifying particulate respirator de- ceeding 1.60 at the specified test condi- sign will be tested for filter efficiency tions as determined with a scanning against: mobility particle sizer or equivalent. (1) A solid sodium chloride particu- (e) The test will continue until min- late aerosol, in accordance with para- imum efficiency is achieved or until an ± graph (d)(1) of this section, if series aerosol mass of at least 200 5 mg has PAPR100–N approval is requested by contacted the filter. For PAPR100–P the applicant. series filters, if the filter efficiency is ± (2) A dioctyl phthalate or equivalent decreasing when the 200 5 mg chal- liquid particulate aerosol, in accord- lenge point is reached, the test will be ance with paragraph (d)(2) of this sec- continued until there is no further de- tion, if series PAPR100–P approval is crease in efficiency. requested by the applicant. (f) The efficiency of the filter will be (b) Prior to filter efficiency testing of monitored and recorded throughout the test period by a suitable forward-light 20 series PAPR100–N filters, the 20 to be scattering photometer or equivalent tested will be taken out of their pack- instrumentation. aging and placed in an environment of (g) The minimum efficiency for each 85 ±5 percent relative humidity at 38 of the 20 filters will be determined and ±2.5 °C for 25 ±1 hours. Following the recorded and must be equal to or great- pre-conditioning, filters will be sealed er than the filter efficiency criterion in a gas-tight container and tested for PAPR100–N and PAPR100–P, effi- within 10 hours. ciency ≥99.97 percent, pursuant to (c) For powered air-purifying particu- § 84.170(b). late respirators with a single filter, filters will be tested at a continuous air- § 84.181 Communication performance flow rate of 85 ±4 liters per minute. test—PAPR class PAPR100. Where filters are to be used in pairs, (a) Powered air-purifying respirators the test-aerosol airflow rate will be 42.5 must be designed to allow for proper ± 2 liters per minute through each fil- communication while worn. ter. (b) A Modified Rhyme Test 7 will be (d) Filter efficiency test aerosols: used to test the wearer’s ability to (1) Series PAPR100–N filters: communicate efficiently. (i) A sodium chloride or equivalent ± ° solid aerosol at 25 5 C and relative 7 The Modified Rhyme Test is used in humidity of 30 ±10 percent that has speech intelligibility experiments. See https:// been neutralized to the Boltzmann www.nist.gov/ctl/pscr/modified-rhyme-test- equilibrium state will be used. Each fil- audio-library.

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(c) The communications requirement (1) Facepiece, mouthpiece, and nose- is met if the overall performance rat- clip, hood, or helmet; ing is greater than or equal to 70 per- (2) Cartridge; cent. (3) Cartridge with filter; (4) Harness; Subpart L—Chemical Cartridge (5) Breathing tube; and Respirators (6) Attached blower. (b) The components of each chemical § 84.190 Chemical cartridge res- cartridge respirator shall meet the pirators: description. minimum construction requirements (a) Chemical cartridge respirators in- set forth in subpart G of this part. cluding all completely assembled respirators which are designed for use as § 84.192 Cartridges in parallel; resist- respiratory protection during entry ance requirements. into or escape from atmospheres not Where two or more cartridges are immediately dangerous to life and used in parallel, their resistance to air- health, are described according to the flow shall be essentially equal. specific gases or vapors against which they are designed to provide res- § 84.193 Cartridges; color and mark- piratory protection, as follows: ings; requirements.

Maximum The color and markings of all car- use con- tridges or labels shall conform with the Type of chemical cartridge respirator 1 centration, parts per requirements of the American National million Standards Institute, American Na- Ammonia ...... 300 tional Standard for Identification of Chlorine ...... 10 Air-Purifying Respirator Canisters and Hydrogen chloride ...... 50 Cartridges, ANSI K13.1–1973. ANSI Methyl amine ...... 100 Organic vapor ...... 2 1,000 K13.1 is incorporated by reference and Sulfur dioxide ...... 50 has been approved by the Director of Vinyl chloride ...... 10 the Federal Register in accordance 1 Not for use against gases or vapors with poor warning with 5 U.S.C. 552(a) and 1 CFR part 51. properties (except where MSHA or Occupational Safety and Copies may be obtained from American Health Administration standards may permit such use for a specific gas or vapor) or those which generate high heats of National Standards Institute, Inc., 1430 reaction with sorbent material in the cartridge. Broadway, New York, NY 10018. Copies 2 Maximum use concentrations are lower for organic vapors which produce atmospheres immediately hazardous to life or may be inspected at the NIOSH, Na- health at concentrations equal to or lower than this tional Personal Protective Technology concentration. Laboratory, P.O. Box 18070, 626 Coch- (b) Chemical cartridge respirators for rans Mill Road, Pittsburgh, PA 15236, respiratory protection against gases or or at the National Archives and vapors, which are not specifically list- Records Administration (NARA). For ed with their maximum use concentra- information on the availability of this tion, may be approved if the applicant material at NARA, call 202–741–6030, or submits a request for such approval, in go to: http://www.archives.gov/fed- writing, to the Institute. The Institute erallregister/ shall consider each such application codeloflfederallregulations/ and accept or reject the application ibrllocations.html. after a review of the effects on the wearer’s health and safety and in the [60 FR 30355, June 8, 1995, as amended at 80 light of any field experience in use of FR 3908, Jan. 26, 2015] chemical cartridge respirators as protection against such hazards. § 84.194 Filters used with chemical cartridges; location; replacement. § 84.191 Chemical cartridge res- (a) Particulate matter filters used in pirators; required components. conjunction with a chemical cartridge (a) Each chemical cartridge res- shall be located on the inlet side of the pirator described in § 84.190 shall, where cartridge. its design requires, contain the fol- (b) Filters shall be incorporated in or lowing component parts: firmly attached to the cartridge and

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each filter assembly shall, where appli- optional use of corrective spectacles or cable, be designed to permit its easy re- lenses, and insure against any restric- moval from and replacement on the tion of movement by the wearer. cartridge. (c) Mouthpieces shall be equipped with noseclips which are securely at- § 84.195 Breathing tubes; minimum re- tached to the mouthpiece or respirator quirements. and provide an airtight fit. Flexible breathing tubes used in con- (d) Full facepieces shall provide for junction with respirators shall be de- optional use of corrective spectacles or signed and constructed to prevent: lenses which shall not reduce the res- (a) Restriction of free head move- piratory protective qualities of the res- ment; pirator. (b) Disturbance of the fit of (e) Facepieces, hoods, and helmets facepieces, mouthpieces, hoods, or hel- shall be designed to prevent eyepiece mets; fogging. (c) Interference with the wearer’s activities; and § 84.199 Facepieces, hoods, and hel- (d) Shutoff of airflow due to kinking, mets; eyepieces; minimum require- or from chin or arm pressure. ments. § 84.196 Harnesses; installation and Facepieces, hoods, and helmets shall construction; minimum require- be designed and constructed to provide ments. adequate vision which is not distorted (a) Each respirator shall, where nec- by the eyepieces. essary, be equipped with a suitable harness designed and constructed to hold § 84.200 Inhalation and exhalation the components of the respirator in po- valves; minimum requirements. sition against the wearer’s body. (a) Inhalation and exhalation valves (b) Harnesses shall be designed and shall be provided where necessary and constructed to permit easy removal protected against distortion. and replacement of respirator parts (b) Inhalation valves shall be de- and, where applicable, provide for hold- signed and constructed to prevent ex- ing a full facepiece in the ready posi- cessive exhaled air from entering car- tion when not in use. tridges or adversely affecting canisters. (c) Exhalation valves shall be— § 84.197 Respirator containers; minimum requirements. (1) Protected against damage and external influence; and Respirators shall be equipped with a (2) Designed and constructed to pre- substantial, durable container bearing vent inward leakage of contaminated markings which show the applicant’s air. name, the type and commercial designation of the respirator it contains § 84.201 Head harnesses; minimum re- and all appropriate approval labels. quirements. § 84.198 Half-mask facepieces, full (a)(1) Facepieces for chemical car- facepieces, mouthpieces, hoods, and tridge respirators other than single-use helmets; fit; minimum require- vinyl chloride shall be equipped with ments. adjustable and replaceable head har- (a) Half-mask facepieces and full nesses designed and constructed to pro- facepieces shall be designed and con- vide adequate tension during use and structed to fit persons with various fa- an even distribution of pressure over cial shapes and sizes either: the entire area in contact with the (1) By providing more than one face- face. piece size; or (2) Facepieces for single-use vinyl (2) By providing one facepiece size chloride respirators shall be equipped which will fit varying facial shapes and with adjustable head harnesses de- sizes. signed and constructed to provide ade- (b) Hoods and helmets shall be de- quate tension during use and an even signed and constructed to fit persons distribution of pressure over the entire with various head sizes, provide for the area in contact with the face.

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(b) Mouthpieces shall be equipped § 84.203 Breathing resistance test; min- where applicable, with an adjustable imum requirements. and replaceable harness designed and (a) Resistance to airflow will be constructed to hold the mouthpiece in measured in the facepiece, mouthpiece, place. hood, or helmet of a chemical cartridge respirator mounted on a test fixture § 84.202 Air velocity and noise levels; with air flowing at a continuous rate of hoods and helmets; minimum re- 85 liters per minute, both before and quirements. after each test conducted in accordance Noise levels generated by the res- with §§ 84.206 through 84.207. pirator will be measured inside the (b) The maximum allowable resist- hood or helmet at maximum airflow ance requirements for chemical car- obtainable and shall not exceed 80 dBA. tridge respirators are as follows:

MAXIMUM RESISTANCE [Millimeter water column height]

Inhalation Type of chemical-cartridge respirator Exhalation Initial Final 1

Other than single-use vinyl chloride respirators: For gases, vapors, or gases and vapors ...... 40 45 20 For gases, vapors, or gases and vapors, and particulates ...... 50 70 20 Single-use respirator with valves: For vinyl chloride ...... 20 25 20 For vinyl chloride and particulates ...... 30 45 2 Single-use respirator without valves: For vinyl chloride ...... 15 20 (2) For vinyl chloride and particulates ...... 25 40 (2) 1 Measured at end of service life specified in Table 11 of this subpart. 2 Same as inhalation.

§ 84.204 Exhalation valve leakage test; (d) The facepiece or mouthpiece fit minimum requirements. test using the positive or negative (a) Dry exhalation valves and valve pressure recommended by the applicant seats will be subjected to a suction of and described in his instructions will 25 mm. water-column height while in a be used before each test. normal operating position. (e)(1) Each wearer will enter a cham- (b) Leakage between the valve and ber containing 100 p.p.m. isoamyl ace- valve seat shall not exceed 30 milli- tate vapor for half-mask facepieces, liters per minute. and 1,000 p.p.m. for full facepieces, mouthpieces, hoods, and helmets. § 84.205 Facepiece test; minimum re- (2) The facepiece or mouthpiece may quirements. be adjusted, if necessary, in the test (a) The complete chemical cartridge chamber before starting the test. respirator will be fitted to the faces of (3) Each wearer will remain in the persons having varying facial shapes chamber for 8 minutes while per- and sizes. forming the following activities: (b) Where the applicant specifies a (i) Two minutes, nodding and turning facepiece size or sizes for the respirator head; together with the approximate meas- (ii) Two minutes, calisthenic arm urement of faces they are designed to movements; fit, the Institute will provide test sub- (iii) Two minutes, running in place; jects to suit such facial measurements. and (c) Any chemical cartridge respirator (iv) Two minutes, pumping with a part which must be removed to perform tire pump into a 28-liter (1 cubic-foot) the facepiece or mouthpiece fit test container. shall be replaceable without special (4) Each wearer shall not detect the tools and without disturbing facepiece odor of isoamyl-acetate vapor during or mouthpiece fit. the test.

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§ 84.206 Particulate tests; respirators parallel, and the test requirements will with filters; minimum require- apply to the combination rather than ments; general. to the individual cartridges. (a) Three respirators with cartridges (c) Three cartridges or pairs of car- containing, or having attached to tridges will be removed from con- them, filters for protection against tainers and tested as received from the particulates will be tested in accord- applicant. ance with the provisions of § 84.207. (d) Two air purifying cartridges or (b) In addition to the test require- pairs of cartridges will be equilibrated ments set forth in paragraph (a) of this at room temperature by passing 25 per- section, three such respirators will be cent relative humidity air through tested, as appropriate, in accordance them at the flow rate of 25 liters per with the provisions of §§ 84.170 through minute (l.p.m.) for 6 hours. 84.181; however, the maximum allow- (e) Two air purifying cartridges or able resistance of complete particulate, pairs of cartridges will be equilibrated and gas, vapor, or gas and vapor chem- by passing 85 percent relative humidity ical cartridge respirators shall not ex- air through them at the flow rate of 25 ceed the maximum allowable limits set l.p.m. forth in § 84.203. (f) All cartridges will be resealed, kept in an upright position, at room [60 FR 30355, June 8, 1995, as amended at 85 temperatures, and tested within 18 FR 20607, Apr. 14, 2020] hours. § 84.207 Bench tests; gas and vapor (g) Cartridges will be tested and shall tests; minimum requirements; gen- meet the minimum requirements set eral. forth in Table 11 of this subpart. (a) Bench tests will be made on an (h) Powered air-purifying respirators apparatus that allows the test atmos- with a cartridge(s) and particulate fil- phere at 50 ±5 percent relative humid- ter(s) must meet the as-received min- ity and room temperature, approxi- imum service-life requirements and mately 25 °C, to enter the cartridges half of the equilibrated minimum serv- continuously at predetermined con- ice-life requirements set forth in table centrations and rates of flow, and that 11 of subpart L using the flows speci- has means for determining the test life fied in subpart K, § 84.175(b) and equili- of the cartridges. brated in accordance with paragraphs (b) Where two cartridges are used in (a) through (g) of this section using the parallel on a chemical cartridge res- flows specified in subpart K, § 84.175(b). pirator, the bench test will be per- [60 FR 30355, June 8, 1995, as amended at 85 formed with the cartridges arranged in FR 20607, Apr. 14, 2020]

TABLES TO SUBPART L OF PART 84

TABLES 9–10 [RESERVED]

TABLE 11—CARTRIDGE BENCH TESTS AND REQUIREMENTS [42 CFR part 84, subpart L]

Test atmosphere Flowrate Number of Penetra- Minimum Cartridge Test condition tion 1 Concentra- (l.p.m.) tests life 2 (min.) Gas or vapor tion (p.p.m.) (p.p.m.)

Ammonia ...... As received ...... NH3 1000 64 3 50 50 Ammonia ...... Equilibrated ...... NH3 1000 32 4 50 50 Chlorine ...... As received ...... Cl2 500 64 3 5 35 Chlorine ...... Equilibrated ...... Cl2 500 32 4 5 35 Hydrogen chlo- As received ...... HCl 500 64 3 5 50 ride. Hydrogen chlo- Equilibrated ...... HCl 500 32 4 5 50 ride. Methylamine ...... As received ...... CH3 NH2 1000 64 3 10 25 Methylamine ...... Equilibrated ...... CH3 NH2 1000 32 4 10 25 Organic vapors .. As received ...... CCl4 1000 64 3 5 50 Organic vapors .. Equilibrated ...... CCl4 1000 32 4 5 50

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TABLE 11—CARTRIDGE BENCH TESTS AND REQUIREMENTS—Continued [42 CFR part 84, subpart L]

Test atmosphere Penetra- Flowrate Number of Minimum Cartridge Test condition tion 1 Concentra- (l.p.m.) tests life 2 (min.) Gas or vapor tion (p.p.m.) (p.p.m.)

Sulfur dioxide ..... As received ...... SO2 500 64 3 5 30 Sulfur dioxide ..... Equilibrated ...... SO2 500 32 4 5 30 1 Minimum life will be determined at the indicated penetration. 2 Where a respirator is designed for respiratory protection against more than one type of gas or vapor, as for use in ammonia and in chlorine, the minimum life shall be one-half that shown for each type of gas or vapor. Where a respirator is designed for respiratory protection against more than one gas of a type, as for use in chlorine and sulfur dioxide, the stated minimal life shall apply.

Subpart M [Reserved] § 84.252 Gas masks; requirements and tests. Subpart N—Special Use (a) Except for the tests prescribed in Respirators § 84.126, the minimum requirements and performance tests for gas masks, pre- § 84.250 Vinyl chloride respirators; described in Subpart I of this part, are scription. applicable to vinyl chloride gas masks. (b) The following bench tests are ap- Vinyl chloride respirators, including plicable to canisters designed for use all completely assembled respirators with gas masks for entry into and es- which are designed for use as res- cape from vinyl chloride atmospheres piratory protection during entry into containing adequate oxygen to support and escape from vinyl chloride life: atmospheres containing adequate oxy- (1) Four canisters will be equilibrated gen to support life, are described ac- at 25 ±5 °C by passing 85 ±5 percent rel- cording to their construction as fol- ative humidity air through them at 64 lows: liters per minute for six hours. (a) Front-mounted or back-mounted (2) The equilibrated canisters will be gas masks; resealed, kept in an upright position at (b) Chin-style gas masks; room temperature, and tested accord- (c) Chemical-cartridge respirators; ing to paragraph (b)(3) of this section (d) Powered air-purifying respirators; within 18 hours. and (3) The canisters equilibrated and stored as described in paragraphs (b) (1) (e) Other devices, including combina- and (2) of this section will be tested on tion respirators. an apparatus that allows the test at- ± § 84.251 Required components. mosphere at 85 5 percent relative humidity and 25 ±5 °C to enter the can- (a) Each vinyl chloride respirator de- ister continuously at a concentration scribed in § 84.250 shall, where its de- of 25 ppm vinyl chloride monomer at a sign requires, contain the following total flow rate of 64 liters per minute. component parts: (4) The maximum allowable penetra- (1) Facepiece; tion after six hours of testing accord- (2) Canister with end-of-service-life ing to paragraph (b)(3) of this section indicator; shall not exceed 1 ppm vinyl chloride. (3) Cartridge with end-of-service-life (c) Where canisters are submitted for indicator; testing and approval with a service life (4) Harness; of more than four hours, the period of (5) Attached blower; and time for testing for vinyl chloride penetration will be performed at 150% of (6) Breathing tube. the service life specified in the manu- (b) The components of each vinyl facturer’s application. (Example: If a chloride respirator shall meet the min- manufacturer requests approval of a imum construction requirements set respirator for six hours use against ex- forth in Subpart G of this part. posure to vinyl chloride, the maximum

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allowable penetration after nine hours will be tested on an apparatus that al- of testing shall not exceed 1 ppm vinyl lows a test atmosphere at 85 ±5 percent chloride.) relative humidity and 25 ±5 °C to be cy- cled through the respirator by a § 84.253 Chemical-cartridge res- breathing machine at a concentration pirators; requirements and tests. of 10 ppm vinyl chloride monomer at (a) Except for the tests prescribed in the rate of 24 respirations per minute §§ 84.206 and 84.207, the minimum re- at a minute volume of 40 ±0.6 liters. Air quirements and performance tests for exhaled through the respirator will be chemical-cartridge respirators pre- 35 ±2 °C with 94 ±3 percent relative hu- scribed in Subpart L of this part are midity. applicable to replaceable-cartridge and (7) The maximum allowable penetra- single-use vinyl chloride chemical-cartridge respirators. tion after 144 minutes testing of res- (b) The following bench tests are ap- pirators, according to paragraph (b)(6) plicable to cartridges designed for use of this section, shall not exceed 1 ppm with chemical-cartridge respirators for vinyl chloride. entry into and escape from vinyl chloride atmospheres containing adequate § 84.254 Powered air-purifying res- oxygen to support life: pirators; requirements and tests. (1) Where two cartridges are used in (a) Except for the tests prescribed in parallel on a chemical-cartridge res- § 84.207, the minimum requirements and pirator, the bench test requirements performance tests for powered air-puri- will apply to the combination rather fying respirators prescribed in subpart than the individual cartridges. L of this part are applicable to vinyl (2) Four cartridges or pairs of car- chloride powered air-purifying res- tridges will be equilibrated at 25 ±5 °C pirators. by passing 85 ±5 percent relative hu- (b) The following bench tests are ap- midity air through them at 25 liters plicable to cartridges designed for use per minute for six hours. with powered air-purifying respirators (3) The equilibrated cartridges will be for entry into and escape from vinyl resealed, kept in an upright position, chloride atmospheres containing ade- at room temperature, and tested ac- quate oxygen to support life: cording to paragraphs (b)(4) and (b)(5) of this section for other than single-use (1) Four cartridges will be equili- ±° ± respirators or according to paragraphs brated at 25 C by passing 85 5 per- (b)(6) and (b)(7) of this section for sin- cent relative humidity air through gle-use respirators within 18 hours. them at 115 liters per minute for tight- (4) The cartridges or pairs of car- fitting facepieces and 170 liters per tridges for other than single-use res- minute for loose-fitting hoods and hel- pirators, equilibrated and stored as de- mets, for six hours. scribed in paragraphs (b)(1), (b)(2), and (2) The equilibrated cartridges will be (b)(3) of this section, will be tested on resealed, kept in an upright position at an apparatus that allows the test at- room temperature and tested according mosphere at 85 ±5 percent relative hu- to paragraph (b)(3) of this section with- midity and 25 ±5 °C, to enter the car- in 18 hours. tridges or pairs of cartridges continu- (3) The cartridges equilibrated and ously at a concentration of 10 ppm stored as described in paragraphs (b) (1) vinyl chloride monomer at a total and (2) of this section will be tested on flowrate of 64 liters per minute. an apparatus that allows the test at- (5) The maximum allowable penetra- mosphere at 85 ±5 percent relative hu- tion after 90 minutes testing of car- midity and 25 ±5 °C to enter the cartridges or pairs of cartridges for other tridge continuously at a concentration than single-use respirators, according of 25 ppm vinyl chloride monomer at a to paragraph (b)(4) of this section shall not exceed 1 ppm vinyl chloride. total flow rate of 115 liters per minute (6) The single-use respirators, equili- for tight-fitting facepieces and 170 li- brated and stored as described in para- ters per minute for loose-fitting hoods graphs (b)(2) and (b)(3) of this section, and helmets.

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(4) The maximum allowable penetra- (2) The tests in paragraph (c)(1) of tion after six hours of testing accord- this section shall be performed in a ing to paragraph (b)(3) of this section quantity necessary to assure continued shall not exceed 1 ppm vinyl chloride. satisfactory conformance of the canisters and cartridges to the require- § 84.255 Requirements for end-of-serv- ments of this subpart. ice-life indicator. (d) Final performance quality control (a) Each canister or cartridge sub- tests on the complete canisters and mitted for testing and approval in ac- cartridges shall be accomplished using cordance with §§ 84.252, 84.253, and 84.254 the bench tests and procedures pre- shall be equipped with a canister or scribed in §§ 84.252, 84.253, 84.254, and cartridge end-of-service-life indicator 84.255. which shows a satisfactory indicator change or other obvious warning before § 84.257 Labeling requirements. 1 ppm vinyl chloride penetration oc- (a) A warning shall be placed on the curs. The indicator shall show such label of each gas mask, chemical-car- change or afford such warning at 80 ±10 tridge respirator, and powered air-puri- percent of the total service life to 1 fying respirator, and on the label of ppm leakage, as determined by con- each canister and cartridge, alerting tinuing each test described in the wearer to the need for a fitting test §§ 84.252(b), 84.253(b), and 84.254(b) until in accordance with the manufacturer’s a 1 ppm leakage of vinyl chloride oc- facepiece fitting instructions, pro- curs. viding service life information, pro- (b) The applicant shall provide suffi- viding specific instructions for dis- cient pretest data to verify the per- posal, and advising that the wearer formance of the end-of-service-life indi- may communicate to NIOSH any dif- cator required in paragraph (a) of this ficulties that may be experienced in section. the design and performance of any gas mask, chemical-cartridge respirator, or § 84.256 Quality control requirements. powered air-purifying respirator ap- (a) In addition to the construction proved under the requirements of this and performance requirements speci- subpart. The service lives of respirators fied in §§ 84.251, 84.252, 84.253, 84.254, and meeting the test requirements of this 84.255, the quality control requirements subpart shall be specified as follows: in paragraphs (b), (c), and (d) of this Chemical-cartridge respirator ...... 1 hour. section apply to approval of gas masks, Gas mask...... 4 hours. chemical cartridge respirators, and Powered air-purifying respirator ...... 4 hours. powered air-purifying respirators for entry into and escape from vinyl chlo- (b) Where the service life of a res- ride atmospheres containing adequate pirator is approved for more than four oxygen to support life. hours, the service life for which the (b) The respirators submitted for ap- respirator has been approved will be proval as described in paragraph (a) of specified. this section shall be accompanied by a complete quality control plan meeting Subpart O—Closed-Circuit Escape the requirements of subpart E of this Respirators part. (c)(1) The applicant shall specify in SOURCE: 77 FR 14193, Mar. 8, 2012, unless the plan that a sufficient number of otherwise noted. samples will be drawn from each bulk container of sorbent material and that § 84.300 Closed-circuit escape res- where activated carbon is used, the fol- pirator; description. lowing specific tests will be performed: The closed-circuit escape respirator (i) Apparent density; (CCER), technically a subset of self- (ii) Iodine number; contained breathing apparatus (SCBAs) (iii) Moisture content; which are otherwise covered under sub- (iv) Carbon tetrachloride number; part H of this part, is used in certain and industrial and other work settings in (v) Mesh size. emergencies to enable users to escape

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from atmospheres that can be imme- § 84.302 Required components, at- diately dangerous to life and health. tributes, and instructions. Known in the mining community as (a) Each CCER must include compo- self-contained self-rescuers (SCSRs), nents and/or attributes appropriate to and in other industries as emergency its design, as follows: escape breathing devices (EEBDs) or (1) Eye protection: Each CCER must apparatus (EEBAs), CCERs are relied include safety goggles or an escape upon primarily by underground coal hood lens that protects against impact, miners, sailors in federal service, and fogging, and permeation by gas, vapor, railroad workers to escape dangerous and smoke, as specified under atmospheres after a fire, explosion, or § 84.308(c); chemical release. CCERs are commonly (2) Thermal exposure indicators: If worn on workers’ belts or stored in the manufacturer specifies a maximum close proximity to be accessible in an and/or minimum environmental temperature limit for storage of the CCER, emergency. They are relatively small then the CCER must include a compo- respirators, typically the size of a nent, an attribute, or other means by water canteen, that employ either which a person can determine whether compressed oxygen with a chemical the CCER has been exposed to tempera- system for removing exhaled carbon di- tures that exceed the limit(s); oxide from the breathing circuit, or a (3) Chemical bed physical integrity chemical that both provides a source of indicators: If the CCER includes a oxygen and removes exhaled carbon di- chemical oxygen storage or chemical oxide. Users re-breathe their exha- carbon dioxide scrubber that can be lations after the oxygen and carbon di- functionally damaged by impact, vibra- oxide levels have been restored to suit- tion, or any other environmental fac- able levels, which distinguishes these tor to which the CCER might be ex- ‘‘closed-circuit’’ self-contained res- posed, then the CCER must include a pirators from ‘‘open-circuit’’ self-con- component, an attribute, or other tained respirators, which vent each ex- means by which a person can detect halation. any damage or alteration of the chemical oxygen storage or chemical carbon § 84.301 Applicability to new and pre- dioxide scrubber that could diminish viously approved CCERs. the NIOSH-certified performance of the (a) Any CCER approval issued after CCER, as tested under this subpart; (4) Oxygen storage vessel: If the April 9, 2012 must comply with the CCER includes an oxygen storage ves- technical requirements of subpart O. sel, the vessel must be approved by the (b) The continued manufacturing, la- U.S. Department of Transportation beling, and sale of closed-circuit appa- (DOT) under 49 CFR part 107, ‘‘Haz- ratus previously approved under sub- ardous Materials Program Proce- part H is authorized for units required dures,’’ unless exempted under subpart for use in underground coal mines pur- B of 49 CFR part 107; suant to 30 CFR 75.1714–1. (5) Tamper-resistant/tamper-evident (c) Any manufacturer-requested casing: If the CCER is not designed for modification to a device approved its casing to be opened prior to use for under the subpart H technical require- an actual escape (e.g., for maintenance, ments must comply with the subpart H escape drills, or inspection of the com- technical requirements and address an ponents), the casing must include a identified worker safety or health con- component, an attribute, or other cern to be granted an extension of the means to prevent a person from acci- NIOSH approval. Major modifications dentally opening the casing and, upon to the configuration that will result in such opening, to either prevent the cas- a new approval must meet and be ing from being closed or to clearly in- issued approvals under the require- dicate to a potential user that the casing has been previously opened; and ments of this subpart O. (6) Moisture damage indicators: If the [84 FR 16412, Apr. 19, 2019] CCER is not designed for its casing to be opened for inspection of its internal

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components, the casing must include a chasers. This document must be clearly component, an attribute, or other written. means by which a person can detect (1) Instructions must address the fol- any ingress of water or water vapor lowing topics and elements: that could diminish the NIOSH-cer- (i) An explanation of how the CCER tified performance, as tested under this works; subpart. (ii) A schematic diagram of the (7) Oxygen starter indicators: If the CCER; oxygen starter is a critical component (iii) Procedures for donning and use; of the CCER design, then the CCER (iv) Procedures for inspecting the op- must include a component, an at- erating condition of the CCER; tribute, or other means by which a per- (v) Procedures and conditions for son can detect observable damage, pre- storage, including but not limited to mature activation, or recognized po- any recommended minimum and max- tential defect of the starter. imum temperatures for storage; (b) Where an indicator is required, (vi) Limitations on use, including but the indication of the occurrence of the not limited to any recommended min- monitored condition must be clear and imum and maximum temperatures for unambiguous: It must not depend on a use; subjective interpretation of subtle, (vii) Procedures for disposal; and graduated, or other non-discrete (viii) Procedures for registration of changes to the indicator. the unit with NIOSH, pursuant to (c) Where an indicator is required, § 84.311. the manufacturer shall provide NIOSH (2) The service life must be addressed with an explanation of its function and covering at least the following topics: operation, and shall provide relevant (i) The maximum number of years, data and equipment to allow NIOSH to from the date of manufacture, that the conduct a thorough evaluation of its unit may remain available for use; this accuracy and reliability. limit is intended to prevent the contin- (d) The components of each CCER ued use of a unit that the applicant must meet the general construction re- cannot assure would continue to per- quirements specified in § 84.61. form as approved by NIOSH, due to rea- (e) The CCER must be resistant to sonably foreseeable degradation of ma- the permeation of the breathing circuit terials used in its construction; by gasoline vapors. To verify such re- (ii) Any other conditions, other than sistance, NIOSH will test one unit by that specified under paragraph (h)(2)(i) applying the gasoline vapor perme- of this section, that should govern the ation test specified on the NIOSH Web removal from service of the CCER (in- site at http://www.cdc.gov/niosh/npptl, cluding an indication given by the acti- using a breathing machine applying a vation or operation of any required in- ventilation rate of 40 liters per minute, dicator showing the monitored condi- performing the test for the longest du- tion has occurred); and ration achieved by any of the units (iii) Any procedures by which a user that underwent the capacity testing or others should inspect the CCER, per- specified under § 84.304. form any maintenance possible and (f) Exposed parts of the CCER must necessary, and determine when the not be composed of metals or other ma- CCER should be removed from service. terials that could, upon impact, create (i) Each individual CCER unit ap- frictional sparks or that could store or proval label shall identify the capacity generate static electrical charges of rating and number of liters of oxygen sufficient energy to ignite flammable as determined by the capacity testing, gaseous mixtures. pursuant to § 84.304. (g) The design, construction, or materials of the CCER must not con- § 84.303 General testing conditions and stitute a hazard to the user as a result requirements. of the wearing, inspection, or use of the (a) NIOSH will conduct capacity and CCER. performance tests on the CCER using a (h) CCER instructions and a service breathing and metabolic simulator to life plan must be provided to pur- provide quantitative evaluations and

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human subjects on a treadmill to pro- The stressors and their respective ac- vide qualitative evaluations. Informa- ceptable ranges will be measured at the tion on the design and operation of the interface between the CCER and the simulator is available from the NIOSH mouth by instruments capable of Web site at http://www.cdc.gov/niosh/ breath-by-breath measurement. npptl. Technical specifications can be Stressor measurements will be evalu- obtained from NIOSH by contacting ated as 1-minute averages. The oper- the National Personal Protective Tech- ating averages of each stressor will be nology Laboratory (NPPTL) by mail: calculated upon the completion of each P.O. Box 18070, 626 Cochrans Mill Road, test as the average of the 1-minute Pittsburgh, PA 15236. Telephone: 412– measurements of the stressor recorded 386–4000 (this is not a toll-free number). Email: [email protected]. during the test. The level of any excur- (b) Capacity, performance, and sion for a stressor occurring during a wearability tests will continuously test will be defined by the 1-minute av- monitor the stressors listed in Table 1. erage value(s) of the excursion(s).

TABLE 1—MONITORED STRESSORS AND THEIR ACCEPTABLE RANGES

Stressor Acceptable range operating average Acceptable range excursion

Average inhaled CO2 ...... <1.5% ...... ≤4%. Average inhaled O2 ...... >19.5% ...... ≥15%. Peak Breathing Pressures ...... DP ≤200 mm H2O ...... ¥300 ≤DP ≤200 mm H2O. Wet-bulb temperature1 ...... <43 °C ...... ≤50 °C. 1 Wet-bulb temperature is a measurement of the temperature of a wet surface. It represents the temperature of the inhaled breathing gas in the CCER user’s trachea.

(c) Capacity and performance tests (1) Three units will be tested on a will conclude when the stored breath- breathing and metabolic simulator in ing gas supply has been fully expended. the condition in which they are re- (d) NIOSH will determine a CCER to ceived from the applicant; have failed a capacity, performance, or (2) Two units will be tested on a wearability test if any of the following breathing and metabolic simulator occurs: after being subjected to the environ- (1) A 1-minute average measurement mental treatments specified in § 84.307 of any stressor listed in Table 1 occurs of this subpart; outside the acceptable excursion range (3) Two units will be tested on a specified in Table 1; or an average breathing and metabolic simulator at stressor measurement calculated at the the cold-temperature limit rec- completion of a performance or capac- ommended by the manufacturer under ity test exceeds the acceptable oper- § 84.302(h)(1), after the unit has been ating average range specified in Table stored for a minimum of 24 hours at 1; or this limit; and (2) A human subject cannot complete (4) One unit, in the condition in the test for any reason related to the which it is received from the applicant, CCER, as determined by NIOSH. will be tested by a human subject on a (e) Unless otherwise stated, tests re- treadmill. quired under this subpart will be con- (5) To approve a CCER for use in coal ducted at the following ambient condi- mines, two units will also be tested by tions: a human subject under the specifica- (1) Ambient temperatures of 23 °C ±3 tions of §§ 84.99 and 84.100 that are ap- °C; and plicable to man test 4. (2) Atmospheric pressures of 735 mm (b) The capacity test will begin upon Hg ±15 mm Hg. the first inhalation from or exhalation into the unit. § 84.304 Capacity test requirements. (c) Each unit will be tested at a con- (a) NIOSH will conduct the capacity stant work rate, depending on the ca- test on a total of 8 to 10 of the units pacity value specified by the manufac- submitted for approval, as follows: turer, according to the requirements

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specified in Table 2. All volumes are (d) NIOSH will rate an approved given at standard temperature (0 C) CCER using the appropriate capacity and pressure (760 mm Hg), dry, unless rating, as specified in Table 2. otherwise noted.

TABLE 2—CAPACITY TEST REQUIREMENTS

RF Capacity rating Capacity VO2 VCO2 Ve (Breaths/ (L of O2) (L/min) (L/min) (L/min) min)

Cap 1 ...... 20 ≤L ≤59 ...... 2.50 2.50 55 22 Cap 2 ...... 60 ≤L ≤79 ...... 2.00 1.80 44 20 Cap 3 ...... L ≥80 ...... 1.35 1.15 30 18

VO2 = volume of oxygen consumed per minute; VCO2 = volume of carbon dioxide produced per minute. Ve = ventilation rate in liters of air per minute; RF = respiratory frequency.

(e) NIOSH will document the least Table 3, until the oxygen supply of the value achieved by the seven units test- unit is exhausted. ed using the breathing and metabolic (c) Testing of CCERs with less than simulator. NIOSH will quantify this 50 liters of capacity, as determined by value of achieved capacity within an the capacity testing under § 84.304, will increment of 5 liters, rounding inter- require the submission of additional mediate values to the nearest lower 5- test units to fully apply the work-rate liter increment. test sequence and requirements specified in Table 3. The testing of each in- § 84.305 Performance test requirements. dividual unit will complete the cycle specified in Table 3 until the breathing (a) NIOSH will conduct the perform- supply of the initial test unit is ex- ance test on a total of six of the units hausted. This initial test unit will then submitted for approval, as follows: be replaced by a second unit, which (1) Three units will be tested on a will continue the test cycle, beginning breathing and metabolic simulator in the condition in which they were re- at the work rate in the cycle at which ceived from the applicant; and the initial unit was exhausted, and (2) Two units will be tested on a completing the full period specified in breathing and metabolic simulator Table 3 for that work rate before pro- after being subjected to the environ- ceeding to the subsequent work rate, if mental treatments specified in § 84.307; any, specified in Table 3. Each initial and testing unit will be replaced as many (3) One unit will be tested, in the con- times as necessary to complete the dition in which it was received from cycle, not to exceed two replacement the applicant, by a human subject on a units per initial test unit. treadmill. (d) The performance test will begin (b) Except as provided under para- with two exhalations into the unit at graph (c) of this section, the perform- the specified ventilation rate and then ance test will apply a repeating cycle follow the manufacturer’s instructions of work rates, according to the se- to determine the design’s susceptibility quence and requirements specified in to hypoxia upon initial donning.

TABLE 3—PERFORMANCE TEST REQUIREMENTS

Duration per Work-rate VCO2 (L/ RF (breaths/ cycle (in VO2 (L/min) Ve (L/min) test sequence minutes) min) min)

1. Peak ...... 5 3.00 3.20 65.0 25 2. High ...... 15 2.00 1.80 44.0 20 3. Low ...... 10 0.50 0.40 20.0 12

VO2 = volume of oxygen consumed per minute; VCO2 = volume of carbon dioxide produced per minute. Ve = ventilation rate in liters of air per minute; RF = respiratory frequency.

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§ 84.306 Wearability test requirements. rectly, isolating the lungs within 30 seconds; 1 and (a) NIOSH will conduct the (2) A CCER must not include any de- wearability test on a total of three of sign, construction, or material char- the units submitted for approval. Three acteristic that can be anticipated or human subjects (two males and one fe- demonstrated, under plausible condi- male), one subject per unit, will con- tions, to hinder the user in the correct duct the test. The three subjects will and timely donning of the CCER. range in height and weight as follows: (c) NIOSH will continuously monitor One subject of height ≥174 cm and CCER use by each test subject during weight ≥90 kg; one subject of either 163 the activities specified in Table 4 to cm ≤height <174 cm, regardless of evaluate the ability of the CCER to weight, or 72 kg ≥weight <90 kg, regard- provide an adequate and uninterrupted less of height; and one subject of height breathing supply, including but not <163 cm and weight <72 kg. All units limited to the requirements of tested must meet all conditions speci- § 84.303(b), without harming or hin- fied in this section to receive approval. dering a user. NIOSH will not approve (b) NIOSH will evaluate the ease and a CCER if the use of any unit during speed with which users can don the these activities indicates any potential CCER, as follows: for the CCER to harm or hinder the (1) Each test subject will be provided user or to fail to provide an adequate and uninterrupted breathing supply to with manufacturer instructions, and the user during reasonably anticipated must be able to don the CCER cor- conditions and activities of an escape.

TABLE 4—WEARABILITY TEST REQUIREMENTS

Activity Minimum duration

Sitting ...... 1 minute. Stooped walking ...... 1 minute. Crawling ...... 1 minute. Lying on left side ...... 1 minute. Lying on right side ...... 1 minute. Lying on back ...... 1 minute. Bending over to touch toes ...... 1 minute. Turning head from side to side ...... 1 minute (at least 10 times). Nodding head up and down ...... 1 minute (at least 10 times). Climbing steps or a laddermill ...... 1 minute (1 step/second). Carrying 50-lb bag on treadmill at 5 kph ...... 1 minute. Lifting 20-lb weight from floor to an upright position ...... 1 minute (at least 10 times). Running on treadmill at 10 kph ...... 1 minute.

§ 84.307 Environmental treatments. shall not exceed 3 °C per minute and constant temperatures shall be main- (a) Four units submitted for approval tained within ±2 °C. will be tested for capacity and performance, pursuant to the requirements of (c) The units, in the casing in which §§ 84.303 through 84.305, after exposure they are deployed for individual use, to environmental treatments simu- will be subjected to physical shock ac- lating extreme storage temperatures, cording to the following procedure: shock, and vibration. (1) The unit will be dropped six times (b) The units will be stored for 16 from a height of 1 meter onto a con- hours at a temperature of ¥45 °C and crete surface; and for 48 hours at a temperature of 71 °C. (2) Each drop will test a different ori- Units will be returned to room tem- entation of the unit, with two drops perature between high and low tem- along each of its three major axes (top perature treatments. The maximum to bottom, left to right, and front to rate of change for thermal loading back).

1 This time limit does not apply to any ad- the lungs are protected to adjust the unit for ditional steps that might be required after wear.

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(d) The units will be subjected to vi- staining of the area enclosed by the eye bration according to the following pro- protection. cedure: (3) NIOSH will test the durability of (1) The unit will be firmly secured to the eye protection using the method a shaker table, which will be vibrated specified in International Standard ISO with motion applied along a single axis 4855–1981(E), Sub-clause 3.1, Unmounted for 180 minutes; oculars. The lens shall not crack or (2) The unit will be vibrated one axis fracture as a result of the test. at a time along each of three axes for (4) NIOSH will test the eye protec- a total of 9 hours; and tion’s resistance to fogging in accord- (3) The vibration frequency regimen ance with the method specified in BS applied to each axis will be cyclical, re- EN 168:2002, Clause 16, Test for resist- peating the sequence and specifications ance to fogging of oculars. The lens provided in Table 5 every 20 minutes. shall remain free from fogging for a minimum of 8 seconds, pursuant to TABLE 5—VIBRATION TEST SEQUENCE Clause 16. Frequency Acceleration (d) The standards required in this Sequence (Hertz) g (±peak) section are incorporated by reference 1 ...... 5–92 2.5 into this section with the approval of 2 ...... 92–500 3.5 the Director of the Federal Register 3 ...... 500–2000 1.5 under 5 U.S.C. 552(a) and 1 CFR Part 51. All approved material is available for § 84.308 Additional testing. inspection at NIOSH, National Per- (a) NIOSH will conduct additional sonal Protection Technology Labora- tests, as indicated below, on one or tory (NPPTL), Bruceton Research Cen- more of the units submitted for ap- ter, 626 Cochrans Mill Road, Pitts- proval. Each unit tested must meet the burgh, PA 15236. To arrange for an in- conditions specified in these tests for spection at NIOSH, call 412–386–6111. the CCER to receive approval. Copies are also available for inspection (b) NIOSH will perform safety hazard at the National Archives and Records tests on any CCER that stores more Administration (NARA). For informa- than 200 liters of oxygen or that stores tion on the availability of this mate- compressed oxygen at pressures ex- rial at NARA, call 202–741–6030 or go to ceeding 3,000 psi. The applicant must http://www.archives.gov/federallregister/ submit 15 units in addition to the 21–23 codeloflfederallregulations/ units required for testing under §§ 84.304 ibrllocations.html. through 84.307. These units will be eval- (1) British Standards Institute, 389 uated for fire and explosion hazards Chiswick High Road, London W4 4AL, using the tests specified in RI 9333, UK, http://www.bsigroup.com/en/Stand- pages 4–18; RI 8890, pages 6–62; and PRC ards-and-Publications: Report No. 4294, pages 18–62. (i) BS EN 168:2002, Personal Eye Pro- (c) NIOSH will perform the following tectors—Non-Optical Test Methods, tests on the eye protection (gas-tight November 2001. goggles or escape hood lens) of one or (ii) [Reserved] more units of every CCER submitted (2) International Organization for for approval: Standardization, 1, ch. de la Voie- (1) NIOSH will test the effectiveness Creuse, Case postale 56, CH–1211 Geneva of the eye protection against dust 20, Switzerland, http://www.iso.org/iso/ using the method specified in ISO 4855– store.htm: 1981(E) Clause 13, Test for protection (i) ISO 4855–1981(E), Personal Eye against dust. The result will be satis- Protectors—Non-Optical Test Methods, factory if the reflectance after the test First edition April 1, 1981. is equal to or greater than 80 percent of (ii) [Reserved] its value before testing. (3) U.S. Department of the Interior, (2) NIOSH will test the effectiveness Bureau of Mines, 2401 E Street, NW., of the eye protection against gas using MS #9800, Washington, DC 20241–0001. the method specified in ISO 4855– These reports are also available from 1981(E), Clause 14, Test for protection NIOSH upon request 1–800–CDC–INFO against gas. The test must not result in (232–4636).

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(i) Pittsburgh Research Center (PRC) (f) NIOSH will not approve a CCER Report No. 4294, Evaluation of the with docking components, with or Safety of One-Hour Chemical Self Res- without the ‘‘Dockable’’ NIOSH des- cuers, July 1980; ignation, unless it satisfies the testing (ii) Report of Investigations (RI) 8890, and other requirements of this section. Evaluation of the Safety of One-Hour Compressed Oxygen Self-Rescuers—Re- § 84.310 Post-approval testing. sults of Destructive Testing, 1984; (a) NIOSH will periodically test the (iii) RI 9333 Evaluation of the Safety capacity and performance of units of of the CSE SR–100 Self-Contained Self- approved CCERs. Rescuer, 1991. (b) NIOSH may test units that are new and/or units that have been de- § 84.309 Additional testing and re- ployed in the field and have remaining quirements for dockable CCERs. service life. (c) NIOSH will conduct such testing (a) NIOSH will conduct additional pursuant to the methods specified in testing of the CCERs that are designed §§ 84.303 through 84.305, except as pro- to allow the user to resupply the oxy- vided under paragraphs (c)(1) and (2) of gen source and the carbon dioxide this section: scrubber while using the respirator (1) Post-approval tests may exclude during an escape. human subject testing and environ- (1) NIOSH will test the docking mental conditioning at the discretion mechanism and procedure to ensure of NIOSH. that they maintain the integrity of the (2) The numbers of units of an ap- breathing circuit (against the intake of proved CCER to be tested under this hazardous fumes or gases) and the con- section may exceed the numbers of tinuity of the breathing gas supply units specified for testing in §§ 84.304 throughout the docking process. and 84.305. (2) NIOSH will test the docking (d) Failure of a unit to meet the ca- mechanism and procedure to ensure pacity and performance requirements that users can employ the docking of this section may result in revocation process reliably, safely, and quickly of the approval for the CCER or in re- under escape conditions. quirements for specific remedial ac- (b) NIOSH will designate CCERs that tions to address the cause or causes of pass the tests specified in this section the failure. as ‘‘Dockable.’’ (e) NIOSH will replace deployed units (c) NIOSH will assign the capacity obtained for testing with new NIOSH- rating to the dockable CCER, as speci- approved units of the same or similar fied under § 84.304(d), by conducting the design, at no cost to the employer. capacity testing using only the breath- (f) To maintain the approved status ing gas supply included for the initial of a CCER, an applicant must make use of the wearable apparatus. available for purchase by NIOSH, with- (d) NIOSH will test the supplemental in 3 months of a NIOSH purchase re- capacities of all breathing gas resupply quest, the number of units requested units produced by the manufacturer for by the Institute. Within any 12-month use with the dockable CCER. Such period, NIOSH will not request to pur- tests will follow procedures consistent chase more than 100 units for post-ap- with those specified under § 84.304, in- proval testing. cluding the rating requirements in [77 FR 14193, Mar. 8, 2012, as amended at 84 § 84.304(d). The manufacturer must FR 16412, Apr. 19, 2019] label the breathing gas resupply unit to indicate its capacity as tested by § 84.311 Registration of CCER units NIOSH and its compatibility with the upon purchase. CCER for which it is designed. (a) The user instructions will include (e) NIOSH may require the applicant a copy of procedures for registering the to provide additional units of the CCER units with NIOSH. The applicant can and breathing gas resupply units to obtain a copy of these procedures from conduct the testing specified in this the NIOSH web page: http:// section. www.cdc.gov/niosh/npptl.

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(b) The applicant shall notify in writ- § 85.1 Applicability. ing each purchaser of the purpose of This part 85 applies to health hazard registering a unit with NIOSH, as spec- evaluations requested by any employer ified under paragraph (c) of this section. If the purchaser is a distributor of or authorized representative of em- the CCER, the applicant must request ployees under section 20(a)(6) of the Oc- in writing that the distributor volun- cupational Safety and Health Act of tarily notify in writing each of its pur- 1970 or section 501(a)(11) of the Federal chasers of the purpose of registering a Mine Safety and Health Act of 1977. unit with NIOSH, as specified under This part is not intended to preclude paragraph (c) of this section. the use of other channels of communication with the National Institute (c) ‘‘The National Institute for Occu- for Occupational Safety and Health to pational Safety and Health (NIOSH) re- obtain information and technical as- quests, but does not require, that pur- sistance concerning toxic substances or chasers of this respirator register each physical agents. unit with NIOSH. Registration will enable NIOSH, which approved this model [45 FR 2652, Jan. 14, 1980] of respirator, to attempt to notify you if a problem is discovered that might § 85.2 Definitions. affect the safety or performance of this Any term defined in the Occupational respirator. Registration will also assist Safety and Health Act of 1970 or the NIOSH in locating deployed units to Federal Mine Safety and Health Act of periodically evaluate whether this res- 1977 and not defined below shall have pirator model is remaining effective the meaning given it in the respective under field conditions of storage and Acts. As used in this part: use.’’ OSH Act means the Occupational Safety and Health Act of 1970 (29 U.S.C. Subparts P–JJ [Reserved] 651, et seq.). FMSH Act means the Federal Mine PART 85—REQUESTS FOR HEALTH Safety and Health Act of 1977 (30 U.S.C. HAZARD EVALUATIONS 801, et seq.). Authorized representative of employees Sec. means any person or organization 85.1 Applicability. meeting the conditions specified in 85.2 Definitions. § 85.3–1(e) (1), (2), or (3). 85.3 Procedures for requesting health haz- Employee has the same meaning as ard evaluations. stated in the OSH Act and for the pur- 85.3–1 Contents of a request for health haz- poses of this part includes miner as de- ard evaluations. fined in the FMSH Act. 85.4 Acting on requests. Employer has the same meaning as 85.5 Authority for investigations. stated in the OSH Act and for the pur- 85.6 Advance notice of visits. poses of this part includes Operator as 85.7 Conduct of investigations. defined in the FMSH Act. 85.8 Provision of suitable space for employee interviews and examinations; Health hazard evaluation means the identification of employees. investigation and the determination of 85.9 Representatives of employers and em- potentially toxic or hazardous effects ployees; employee requests. of: (a) Any substance normally used or 85.10 Imminent dangers. found in any place of employment to 85.11 Notification of determination to em- which the OSH Act is applicable, or (b) ployers, affected employees, and Depart- any substance or physical agent nor- ment of Labor. mally used or found in any place of em- 85.12 Subsequent requests for health hazard ployment to which the FMSH Act is evaluations. applicable. AUTHORITY: Sec. 8(g), 84 Stat. 1600; 29 Investigation means a physical inspec- U.S.C. 657(g) and sec. 508, 83 Stat. 803; 30 tion of the place of employment under U.S.C. 957. section 8 of the OSH Act or section 103 SOURCE: 37 FR 23640, Nov. 7, 1972, unless of the FMSH Act and includes inspec- otherwise noted. tion, sampling, observations, review of

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