"Introduction to Darchem Engineering Inc & Comments on NRC Proposals."

DARCHEM

INTRODUCTION TO D A RCII E31 ENGINEERING INC AND CO3DIENTS ON TIIE NRC PROPOSALS

DOCU31ENT NU31BER: DS/904K)15/1

DATE: 29 JANUARY 1993

ISSUED BY:

CTal IIALL DIRECTOR OF ENGINEERING

AND

| K J SIURRAY FIRE ENGINEERING DESIGNER

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INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1

1 ' die NRC PROPOSALS p 9

Pages Affected Section Date Revision Summary Revised - By t

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CONTENTS

1. INTRODUCTION

2. COMMENTS ON THE NRC PROPOSALS

2.1. Fire Testing 2.2. Ampacity Derating Tests 2.3. ASTM E136 Combustion Characteristics Test

3. DARCHEM ENGINEERING INC

3.1. Pmduct Premise 3.2. Corporate Information

4. PRODUCT INFORMATION

4.1. Concept and Construction 4.2. Pmduct Design and Testing 4.3. New Darmatt Composites .

5. DESIGN PHILOSOPHY

~ 5.1. Design Concept 5.2. System Protection

6. DESIGN AND ~IESTING FACILITIES

. 6.1. Consultant Testing Facility 6.2. Faverdale Technology Centre

Darchem Engineering Inc

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A fire test on a proprietary fire protection product, which was extensively used for the protecuon , ' of Electrical Circuits in Nuclear Plant indicated the failure of the product to comply with the

requirements of the ASTM E119 specification. j

This product had been previously tested and had apparently been successfully in complying with ! the requirements of the ASTM E119 specification.

The result of all the analysis on this situation have led the NRC to review the specification for ; Electrical Circuit Protecdon systems as well as to investigate whether there was a problem on ' existing installations. i

The NRC have issued a draft prelimmary issue on a specification for the testing of Electrical I Circuit Protection Systems for comment by the public domain.

This document is Darchem Engineering Incorporated's response to the NRC's draft preliminary specification.

Also included in this document is information about the capabilities of Darchem Engineering Inc , and a brief description of products that may be used to protect electrical circuit systems from fire and upgrade existing installations. i

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INTRODUCTION TO DARCHEh! Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS Issue A Page 5 of 49

2. COMMENTS ON THE NRC PROPOSALS

The following are Darchem Engineering Inc comments on the NRC proposals for the fire testing and Ampacity derating testing on Electrical Circuit Protective Systems.

2.1. Fire Testine

2.1.1. Cable Fills i

The fire test proposals at present do not indicate the number, size and types of cable to be used in the fire tests apan from the single cable loading.

To enable vendors to offer a range of thicknesses of materials we would propose that the numbers of cables to achieve 25%, 50% and 75% loadings of cable raceways together with the cable size and type should be specifically stated in the specification to ensure all Electrical Circuit Protection Systems can be compared.

2.1.2. Hosestream Test

One of the main reseivations that Darchem Engineering Inc. have on the fire testing of Electrical Circuit Protective Systems is on the Hose stream requirement.

The original hosestream requirement of the ASTM E119 specification was for a solid water hosestream from an 1%" nozzle at 30 psi, with the nozzle 20' distant from the specimen, to be applied immediately after the fire test and for the protection system to temain intact.

The hose stream requirements of NFPA 251, ASTM E119 and ASTM E814 have long been recognised as providing the mechanical means of determining fire

barrier product performance with respect to thermal shock, effects of erosion and !

the ability to resist mechanical abuse. The new test protocol allows for fog ,

nozzle testing in lieu of the solid stream test. !

' If we remember this was based on the scenario that fire fighting teams using their { usual techniques of solid hosestream as well as water fog attending a conflagration to which raceways with fire protection encasement are exposed. then after a period of tackling the blaze circumstances force the fire fighters to withdraw, it can be seen it is imperative the fire protection system remains intact otherwise the cables will be destroyed before they have completed safe shut-down of systems.

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The concern is that the new proposals allow for a relaxation in the hosestream , criterion by including a Water fog as an option. We believe that the penetrating power that the impact of a solid hosestream impans to the fire protection system , around a raceway will not be reproduced by the water fog. This will mean that ' fire fighting teams will be restricted in their choice of equipment and | methodology for taciding the blaze to avoid penetrating through electrical circuit protection systems that have been qualified against the water fog criteria. It will also mean fire protection systems may not have the ability to withstand even small amounts of falling debris.

We therefore recommend the existing solid hosestream test is used without alternative. >

2.2. Amnacity Deratine Tests

In response to the NRC proposals for ampacity derating tests we believe that the cable

loading in the ampacity derating test must bear some relation to the cable loading used , in the fire test. We also believe the specification should include the sizes and types of ' cable to be used in the ampacity derating tests as well as a statement on loading and sizes of raceway to allow a comparison of fire protection systems to be made. :

We propose that to allow vendors to offer a range of material thicknesses an inclusion

in the specification akin to the following table could be utilised ;

CABLE FILL RANGE E119 FIRE TEST CABLE AMPACTIY DERATING QUALIFICATION FILL TEST FILL 1 cable min 24% max 0% 247c

, 257c min 25 % 74 % 74% max

75% min 75 % 100 %

and over -

This system would have the following benefits:-

a) The minimum ampacity derating of cables on nuclear plant

b) The minimum loading of raceway supports due to the fire protection system.

c) Optimum cost for coverage of various size raceways and cable loadings.

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2.3. ASTM E136 Combustion Characteristics Test

The ASTM E136 test method is traditionally used for indicating if a building material ; will either aid combustion or add appreciable heat to a ambient fire. It is also used for

checking insulation materials, in panicular calcium silicate which can have a high paper i content. ! We support the implementation of ASTM E136 test method as we believe this test provides essential data in assessing the suitability of materials for use in a fire protection system. However the present ASTM E136 standard as it stands excludes coating materials. We would urge that a complete representative section of material including any coating is to be tested.

We recognise that the use of this test method on certain fireprotection materials will cause problems, in that some materials used for fire protection are intumescents or subliminate both of which increase in thickness and form a char when exposed to a temperature of between 150*C and 300 C. It can be seen that for traditional insulation i material testing a specimen 1.5"x1.5"x2" long in a cylinder with a 3" inside diameter is

not a problem but an intumescent or sublimate which will expand to at least 4 times its i original thickness will end up (in the free state) with dimensions 6"x6"x8", ie it will , completely seal the inner cylinder of the ASTM E136 test rig.

Therefore we recommend that changes to the test rig used for tests are made to allow for , the inherent nature of intumescent and subliminate materials.

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3. DARCHEM ENGINEERING INC

3.1. Pmduct Premise i | | The complexities and risks within the nuclear industry necessitate the use of reliable, ; technically superior fire protection. Passive protection of critical control components is i increasingly recognised in all major industries as a necessary complement to active fire detection and extinguishing systems due to its favourable long term benefit-to-cost ratio. ;

Darchem Engineering is uniquely qualified as a supplier of fire protection systems * because of its long standing capability in the fire protection market providing quality j

customer support for the design, manufacture, and installation of fire protection systems i on a plant wide basis. DARMA*IT enclosures are especially applicable to the nuclear industry because of the easy assess which allows re-wiring of cable bundles to ' accommodate changes in technology or by regulations.

This brochure provides both brief technical information about the specifications and ! testing of DARMATT in nuclear installations, as well as information about Darchem ! Engineering Inc. | i

3.2. Comomte Information i : Darchem Engineering is a recognized world leader in fire protection systems and fire f technology, including product, design, manufacture, installation and testing of fire protection systems.

Darchem Engineering Inc. commenced business as Darchem Flame Control on 1 January ; 1987, with the acquisition of the assets and technology of Flame Control Systems. Inc. FCSI operated through the years 1978 through 1986, gaining experience in fire protection of instrumentation which included installing several million dollar contracts in various

hydrocarbon processing plants throughout the world. |

The products and capabilities of FCSI attracted the interest of Darchem Limited, a major ' supplier of " engineering insulation" to the worldwide nuclear, aerospace, and petrochemical industries. The Darchem product lines include both soft and hard | < insulation for a variety of high technology applications. Darchem has supplied special ! purpose insulation, such as stainless foil heat barriers for lining reactor chambers, to well over 100 nuclear power plants worldwide. Annual worldwide revenues total over $450 million. Darchem Limited is owned by William Baird PLC, a broadly based group with interests in textiles and in engineering, with annual revenues of over $950 million.

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INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 ' THE NRC PROPOSALS p 9

Darchem Limited created the California corpomtion, Darchem Engineering Inc, on October 301986. In 1989 Darchem discontinued use of the dba Darchem Flame Contml and operated solely as Darchem Engineering Inc. (DEI). Within the Darchem Limited

family, DEI reports to Darchem Engineering Ltd., of Stillington, England. That company ; maintains a substantial engineering staff and test facility. Those resources are available to Darchem Engineering Inc., and contribute on a continuing basis to product development and pmject engineering.

The following provides a list of Nuclear Power Plant and Petrochemical plant whem , Darchem Engineering has installed Special Purpose Insulation products.

Darchem Engineering Inc

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ENGINEERING INC AND COMA 1ENTS ON DS/90-0015/1 , i THE NRC PROPOSALS Issue A Page 10 of 49

Cou""v Reacto' 'voe , - ; Woiyd wide nuclear power stations for which Darchem Belgium Pressur' sed Doe,iii Doeiiv Engineering Ltd has supplied. * ate"eactors 7.hanoe is T,tanoe ira or received orders to supply, finiand B oa.ng Tvoi special purpose insulation. * ate"eactors Tvc2 France Gas cooled St Laurent i reactors 51 Lauter t 11 500,umt.oclec Raposod.e ', l f ast reactors Pbenes | Pressurised Fessenheim 1 te Biayais B 1 Chinon 3 water reactors Fessenheim 2 Sa,nt-Laurent B2 Chinon4 Tricasten i te B!ayars B2 St A! ban 1 Gravehnes 1 Chinon 1 Fiamanville 1 Dampierre 1 Le B.ayars B 3 Cattenom 1 Tricaster il Chenon ? Cattenom 2 Gravehnes 2 Le B:aya's B4 Cattenom 3 j Dampierre ll Paru ell Cattenom 4 Tricastan m Paksel 3 5t Albanal Gravehnes 3 Cruast Flamany. lie 2 Dampierre m Cruas2 Goitech l incastin iv Cruas 3 Gottech 2 Sa,nt-Laurent B1 Cr as4 Gravehnes 4 Gravennes s Dampiene lv Grave 4nes 6 Germany THTR Scnm

, reactor P'euunsed Neckarwestheim Uncerweser water reactors Bibks B Boibng Gundremmingeri e water reactors Gundtemrningen C + Holland Pressunsed Borssetie water ecactor Iran Pressansed Bushehr I water reactors Bushehr 2 Italy Gas cooled Latina reaClor Japan Cas cooled TokarMura reactor Korea Pressur! sed (ori l Korea 9 water reacto's Korea 10 South Pressurised Koeberg 1 Africa nater reac ors Koa* pro 2 j 5pam Gas coced Vanoellos reactor r

Sweden Pressunsed Ringhais HI Renghais H water reactors RinghalsIV Boibng Forsmark 3 Osk arshamn 1 water reactors Oskarshamn 3 Oskarshamn 2 Switzerland Fressurised Goesgen , a usater reactor

United Gas coo +d Transty nydd Oldbury Kmgdom reacto s Dungeness A WyPa 5.:eweli A% anted gas .. ,ncsc a'e H Wey B too+d reactors Degeness B Hunterston e Ha'tiepool Hevsham li Heysham lornen Sodrum coo @d Dounreay dest teactor Pressur' sed tear.ne (19) 52eweii B water rFacto's Chma G,angocngi GJangdono 2

Darchem Engineering Inc

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i ASIOCO OIL CO31PANY BRITISH PETROLEU51 LTD

Whiting Refinery, Indiana Grangemouth Refinery, Scotland Texas City Refinen, Texas Sullom Voe Terminal, UK hiagnus Offshore Platform, UK Ravenspurn Offshore, UK

ARAMCO, SAUDI ARABIA BROWN & ROOT

Abgaiq: Throughout Central Plant Chevron Pascagoula, hiississippi Surrounding Ama + GOSP Abu Ali Gas Plant Aindar GOSPs 3 & 4 Beri NGL Plant CHEVRON USA Khursaniyah Pump Station Offshore Zuluf Platfonn 3 & 4 EL Segundo Refinery, Califomia Ras Tanura: Refinery and Terminal Richmond Refinery, California Shedgum Gas Plant Gaviota Gas Plant, California Uthmaniyah: HGL Plant and surrounding Salt Lake City refinery, Utah

Ama GOSP's Penh Amboy Refinery, New Jersey i Yanbu NGL Plant

ARCO CHINA LIGHT & POWER

Watsonville Refinery, California Shatin 400KV Sub-Station, New Territories, Bahamas Oil Refining Co. Hong Kong Freeport Refinery Tin Shui Wai 132KV Sub-Station, New Territodes, Carson Refinery, California Hong Kong Tsun Yip Lane 132KV Sub-Station, Territories, Hong Kong AUTO 31ATED VALVE SPECIALTIES Penny's Bay 132kV Sub-Station, Lantau Island Hong Kong Orange, Texas DuPont Chemical Plant Sham Shui Kok 132KV Sub-Station, Irintau Island, Hong Kong

BAPCO CLARK OIL & REFINING CORP

Bahrain Refinery Blue Island Refinery, Illinois

BARIVEN (VENEZUELA) CORPOVEN, S.A

Amuay Refinery GLP Spheres, Jose La Salina Refinery Cryogenic plant, Jose Extraction Plant, San Juaquin

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< | BONAIRE PETROLEU51 (BOPEC) DOW CHE31ICAL CON 1PANY

Terminal Projects, NA Freeport Crude Processing Plant, Texas

* DUKE POWER CO31PANY 51ARAVEN, S.A

hicGuire Nuclear Station, Refmeria Cardon Unit 1 Nonh Carolina

E.I. DUPONT de NE310URS & Co SIOBIL OIL CORPORATION

Beaumont Ammonia Plant, Texas Beaumont Refine 2y, Texas Joliet Refmery, Illinois Torrance Refmery, California ; ESSO STANDARD OIL SA LTD Mary Ann Field Gas Plant, LA Chalmette Refmery LA Managua Refinery, Nicaragua Paulsboro Refinery, NJ | Samia Ontario Refinery |

ESSO UK NATREF

Fawley Refinery, England Sasolburn Refmery,SA

: EXXON, EL SALVADOR PEQUIVEN, SA

Refineria Petrolera Acajutla SA Olefms Plant. El Tablazo Refmeria Petrolera Acajutla SA EXXON COSIPANY USA San Salvador Refmery, EL Salvador

Baytown Olefins, Texas REFINERIA ISLA (CURACAO) Bayway Refmerv, New Jersey Jetties 2 and 2, Emmastad Jetties 1 through 6, Bullembaai FOSTER-WHEELER ENERGY CORP SHELL CANADA RESOURCES LTD Celanese Chemical Co Bay City, Texas Mary Ann Gas Field Plant, Texas Scotford Styrene Plant, Alberta

IAIPERIAL OIL LTD SYNCRUDE CANADA LTD

Samia Refinery, Ontario Canada Oil Sand Plant Fon McMurray, Albena Strathcona Refinery, Alberta Canada

Darchem Engineering Inc

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FLUOR CORPORATION TEXACO, INC

Sasol II & III, South Africa Port Arthur Refinery, Texas Venezuela Projects Port Arthur Chemical Plant, Texas Saudi Arabian Projects Wilmington Refinery, California Pembroke Refinery, UK

ICI UNOCAL

Dunfries Works, UK Chicago Refinery, Illinois

LAGOVEN, SA UNO-VEN

, Flexicoker Plant, Amuay Lamont, Refinery, Illinois Plants TJ1,TJ2,TJ3, Lago de Maracaibo

Tank Farms. Ule Muelle 7, La Salina - GLP Tanks, La Salina

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4. PRODUCT INFORhiATION

4.1. Concept and Construction

' Darmatt is a flexible composite mattress system constructed with both multiple layers of varying density of ceramic or other fibres. The specific composite for each project is dependant upon the time / temperature requirement, site conditions such as localized 3 configurations, the thermal mass of the material being protected, local fuels sources, air flow, and a number of other variables. Depending upon the contractual specification, the layers of fibre may also be separated by metal foils or encapsulated with stainless mesh or corrugated sheet metal.

The Darmatt material manufactured for Nuclear applications is encapsulated in a ceramic glass fabric cover which can withstand temperatures of 2000T or higher, and can meet a subsequent hose stream requirement. The interior layer, which is not exposed to extreme temperatures, is an uncoated fibreglass fabric. The DAIGiATT blanket composite is held in compression and on exposure to fire, the compression system quickly melts, allowing the composite to expand improving the performance of the protective envelope.

'. These covers provide mechanical protection for the composite and allow the DARhiATT material to be fabricated into enclosures with nylon coated, galvanized or stainless steel ' wire. Individual Darmatt sections are precisely designed and fabricated to fit electrical control and power equipment and their associated cable and junction boxes, and can , prevent destruction in a fire situation for the length of time specified by the customer.

The flexibility of the DARhiATT material facilitates installation on restricted clearance

area and allows installation on new or existing equipment. Enclosures are supported by ,

the equipment itself or by a supplemental frame. the installed weight of a standard t composite DARh1ATT is generally between 2.5 to 3.0 lb/sq ft.

The following page shows a cross section of a typical " nuclear grade" Darmatt which has been tested for specific configumtions to meet a 60 minute rating against the ASTM E119 fire curve. the specific materials and densities of product would vary depending upon the specific conditions at site.

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I } 4.2. Pmduct Desien and Testine

Darchem offers products which have been recognized by the American Nuclear Insurers i as meeting a one hour protection requirement against a full scale ASThi E119 Test for ! protecting electrical circuits in nuclear power plants. i Test Certificates and copies of summaries of the following tests are reproduced on the | following pages. ! ASTAf E119 Fire and Solid Jet Water Hose Stream Test, for the following Fire Protection Enclosure Types: -

+ Open Ladder & Solid Bottom Cable Tray + 2" Diameter Conduit + 4" Diameter Conduit

ASTM E84 Smoke and Flame Propagation Test !

Ampacity Derating Evaluation ,

, (Many of the following excerptr am from test documents and are only summaries of test, not intended as representations of tests thems' elves. Actual test documentation is available upon request).

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'l INTRODUCTION TO DARCllEM DocuTnent No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS Issue A Page 17 of 49

4 AMERICAN ' a nuctan INSUBBS MAERP RA i ACCEPTANCE OF TESTING (for insurance purposes) ! i i TRUTECTIVE ENVELOPE FOR CLASS 1E ELECTRICAL CIRtt!!TS | The following protective envelope supplier or installer has successfully com l t d i the "ANI/MAERP Standard Method of. Fire lests of a Protectivepee Envelope for Cl i Electrical Circuits". ass IE I

, FROTECTIVE ENVELOPE SUPFLIER CR INSTALLER: i Derchem Finme Control TESTING ORGANIZAT10ft: A Division of Dnrchem Engineering. Inc. wernock Hersey i Pasadena. Calif orma Pittsburg, Calliornia L

TEST CATE: Aueust T.1996 i HOUR RATING? I , , _ GENERAL CA2A ; ! EnveIoce Materials D*""'"'"""*"*I'""*"#""~" # l and Components: Cuanne MM (AJ. Gmn RehaetoHes) 2 !ayen - 8 ms./f t.3 I 11ayer - 4 lbs./f t.3 with > .0015 inch aluminum foil between each leyer. Fibergtass Cloth (Clark Schwabel) Inner cover - CS-6758 1 Soec. - HO-FG/CF- A1,/1.5-3C-1-8/4-CT/C

! Internal Fire Test Conducted: the protective envelope) (for systems / designs that require heat to activate

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SFEEIAL l!!ilTATIONS * Tray Tyres: ce ., . tedder & solid enttom Cable Construction: un t in itntions Max. Conduit Size: f3/A _. Other: N/A Note: i

Maximum cable temperature measured295 DF. during this test wasThe ef fects on cable performance of temperatures of envelepe is to be areifed,this magnitude must be considered where this protective , j t Eomoiete detatis of preposed erotective envelcre installations - to Merican Nuclear lnsurers or fMERP peinsurance Associati 5 ins ta l la tion. Accrotance of on priorare to to be actual submitted [ fire protection of the preperty and is based on informatithe testing is only for insurance ceverage; related to on provided. ' This form is valid for two (2) years from the date is ued ' unles wi awn prior there - un -o,7th !997 y k Lu

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AnlE RIC AN I 3 tmCLEr.n MAERP R A INSUuERS

ACCEFTMtCE OF TEST!!G (for insurance purposes)

rPOTECTIVE EnvElcrF TOR CLAS51E ELECTRICAL CIRCUlTS The following protective envelore surplier er installer has successf ully completed the *ANI/MAERP Stancard Method of Fire Tests of a Protective Envelope for Class IE Electrical Circuits".

PROTECTIVE ENVELOPE SUPPLIER OR 1:1STALLER: TESTlfG DRGAfillATIDft: Dorchem Flame Centrol Wernock tiersey A Divmon of parebem Engineering, Inc. I'Ittsbur g, cotif ornia Fesoceno. Cniif ortun

TEST DATE: Aurust 8.19B6 110Uf1 RAT 1:G: I

GEtiEPAL DATA U""'''"**"d*I *h " ' " ' ' " ~ Envelepe Materials Ceramic fiber i A.P. Green Itef rectoriesi : layers - 8 lbs./f t.3 and Components: 1 inver - 4 tbs./f t.3 with .nnt $ inch niummum f oil between ench toyer. Tiberctess clotti(Clark-Schwebell inner cover - C5-6158 ^ Spec. No. - NO-FG/CF- AL./1.5-3C-1-9/4-CT/C

Internal Fire Test Cenducted: (fer systems / designs that require heat to activate the protective envelepe) N/A

. 5FECI AL lif1!TTTIO'15 Tray Types: ma Cable Construction: No Limitations

Max. Conduit Size: a in,.h ,- Other: Junction 13cx, eenduit ogsinst well or floa' tiote: Maximum table temperature reasured during this tes t was4"e t99 cF; 2" = 25 00 The ef f ects en cable Performance of temperatures of this magnitude must be consicered 6,here this protective envele;e is to be arplied.

, 1 l (cmolete details of crerosed crotective eavelere installatters are to be sutnitted i to /Werican Nuclear insurers or fMEFF Teinsurance Association prior to actual I i ns t a l l a t t en . Accep tance of the testing is only f or insurance teverage related to | fire protecticn of the precerty and is Lased en information previded. ; | This f orm is valid f or two (2) years f rom the date issued unless withdr. awn prior th ! , . ~a ! ' L '~ (e '' Much 2ft. I 99 7 L; ate 155ueo d ./chW J . Lar t y p

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l INTRODUCTION TO DARCHEM Document No. ' 1 ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS Issue A Page 22 of 49

AN dlCAN '' a imcuAn MAERP RA msunas ,I ACCEPTANCE OF TESTING ' (for insurance purpcses) | | fp0TEC'T IVE ENVEterE r0R CLASS 1E ELECTRICAL CIRCUITS

The follcwing protective envelope supplier er installer has successfully completed ' the *At*IiMAERP Standard Method of Fire Tests of a Protective Envelope for Class IE Electrical Circuits". {

rROTECTIVE ENVELOFE SUFPLIER OR INSTALLER: TESTING ORGANIZATION: I Deretiem Flame Control Wernock Hew Pittsburg, Calif orm,e | A Div6sion of Derenem Engineering, Inc. 1 | Peseoene. Calif ornia | |

TEST DATE: Aurust ?.1996 HOUR RATING: 1 GEtlEEAL DATA ) Envelope Materials steintess steel - outer covermg - 0.004 inches I and Components: Ceramic fiber ( A.P. Green Refractories) 2 layers - 8 lbs./f t.3 1 layer - 4 lbs./f t.3 with .pn t s b elummum foil between eeth ins Fiberglass Cloth { Clark-Schwebel) Inner Cover C5-6T58 Spee. - NO-F G/SS- A L/l.5-3C-1-8/4-CT/C

Internal Fire Test tenducted: (for systems / designs that require heat to activate the prctective envelope) . - - ___ ufn

SPECIAL EINITATIONS

Tray Types: N/A Cable Construction: No 1.imit ations Max. Conduit Size: 2 inch Other: eretns't well or floor Note: Maximum cable temperature reasured during this test was 268 DF. The effects en caole perfc-mente of temperatures of this magnitude must be considered where this protective envelope is to be applied.

Camelete details of creposed protective envelete installatiens are to be submitted to Ame-ican Nuclear insurers or ftA[EP peinsurarce Association prior to actual installation. Actertante of the testinn is only for insurance c:verage related to fire p*otection of the property and 15 based on informatiCn provided.

rawn prior there This ferm is valid' for two (2) Jears from the date issuedyle s wi' L.-- March 20.199T -m . e .# ~ Late tssueo J0nn d. (g>_ t

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1 Wornock HerwyinternationalInc.

Page 30 of 84 ' 22. SIGNATtfRES

REPORTED BY:

_- ; ~- { Greg Ellis heport h'ri t e r

TESTED BY:

/ aY. h.rv Y m , Vijay C. Hulkar Testing Engineer

PIVIEbT.D BY: / | yh t ,- ' '',L};Q'\ = vs \ | .c u. ,1g

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i INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS Issue A Page 26 of 49

SwRI Project No. 01-1374-603

AMPACITY DERATING OF TIRE-PROTECTED CABLES IN CONDUIT / CABLE TRAYS USING DARCitEM/ FLAME CONTROL *S ONE-HOUR NUCLEAR GRADE DALFRATEX COVER CONDUIT / CABLE TRAY BARRIER WRAP SYSTEM lexcerptedl Tables I and II (belowl provide a sunenary of the test results obtained for each test. Data about the test including temperatures recorded during test, and test procedures is available upon request.

TABLE 3. CA8LE TB AY AMPACITT DERATING SimaARY

Final Everent tags! Amp ac it y F inal F inal Man. F inal at aQ't Amsten; Decating Ase tent Cannut ter Carrent and 90*t toneuctne fil t oH ievr a t i on leap. (*Et le=o. f * ti f aesi - - 22.3 ICI A-64449 $ tan- 40 90 nard Table #3

- Ba se i t ee-Open 41.1 90.7 24.6 24.4 Top /Opee Rottan

10 . 7 55.1 Daewoor Barrive 39 .3 90.2 10.8 Wras 5.s tee

1 ABLE $1. 0DNDUlf AMPACITT DERATING $UMMARY

Ampat tt y Final f inal Nas. F inal F9aal Current l emos a Dereting ambient tonous tee terrent at AD*C Amatent t e.es t ene en*C Consor toe '11 C on f * wes t e en % (*ti Temo . (* ti - genei t ee 39 .1 90.3 24.0 23.2

15.5 34.2 Dae-*ove toe-ter 40 .0 98.1 15.6 oven t. tem

twq [igp q mumn or rat n:umm t i _r - ._ __ ._

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INTRODUC'IlON TO DARCHEM Docunient No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 111E NRC PROPOSALS Issue A Page 27 of 49

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INTRODUCTION TO DARCHEM DcCument No. 1 ENGINEERING INC AND COMMENTS ON DS/90-0015/1 l ' THE NRC PROPOSALS

5-R1 Project No. 01-1901 073

"!NVESTIGATICN OF SURFACE BURNING CHARACTERISTICS CF A CERAMIC PIEER MATERIAI CCA*ED WIT!! TABRI COTE 7290 RED SIIICONE RUEBER: 'DALFRATEX' C-19 CR 'RETRASIL' S/51" +

~ - (excerpted) ,

V. 7EST RESULTS

The test results were calculated on the basis of ebserved flame

| travel and the measurement of areas under the recorder curves of fureace temperature and smoke developed (see Table 2). To allow for possible t variations in results due to limitations of the test method, the numer- ital results were adjusted to the nearest figure divisible by '5. Recorded data f or flame spread, smoke developed and temperature i for the specimen are shown in the figures at the end of this report as a solid line en each graph.

| TAELE 2. CLASSIFICATION |

Flame ipread Tes t Index Smoke Scettmen E84-66 Develooed Gl as s-R ei nf orceo-C ement Board 0 0 Red Oak Flooring 100 100 A Ceramic Fiber Material Coated with Fahri Cote 7290 Red Silitone Rutter: "Dalf ratex* C-19 or *Ref rasil' S/S1 15 50 '

'~ VI. CBSERVATIONS OtJRING AND AFTER TEST

Obs erva ti ons mace during and after the t es t are presented in Table 3 on the f ollowing page.

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i INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 711E NRC PROPOSALS lssue A Page 29 of 49

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SwRI Preject No. 01-1901 073 t eont. )

TABLE 3. OBSERVATIONS I . - - -

E vent

Spotty Ignition, min:s 0:32 , steady Ignition, min:s 0:58 | Color Change, min:s 0:30 Maximtra Flame Front Advance, min:s 2:45 ft 9.0 (m ) (2.75)

Af terflame, min:s --

Damace Tuf ting Pin Heacs Consmed, f t 11.0 (m) (3.361 ' Discoloration, f t 25.0 (m) (7.63)

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INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS Issue A Page 30 of 49

New Darmatt Composites 4.3. ,

1 | , To pmvide lower cable ampacity deratings at the longer fue protection durations Darmatt composites manufactured from new style materials are being developed. These materials ! still incorporate ceramic fibre as the base material matrix, however the additions of endothermie material to absorb heat and create an effective delay to the mechanism of

heat transfer enhance the high temperature insulating propenies of ceramic fibres with ;

out increasing the insulation effect at normal operating temperatures. i 1 i As with the traditional Darmatt Fire Protection Systems tested at the Warnock Hersey j Test House and approved by the American Nuclear Insurers for installation as a 1 hour Rated Electrical Circuit fire protection system. The new composite materials will provide the same low surface burning characteristics and non-toxic emissions together with the ' capability to withstand the rigours of a solid water hosestream.

The following graph shows the results of an early development fire test, performed at the Faverdale Technology Centre fire test facility, on a Darmatt composite utilising new material wrapped around a 6" diameter conduit with a bare copper conductor running the : length of the conduit. The fire conditions were the E119 firecurve for a period of 180 ; minutes.

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PP u. a d97 $? "' 9 h c. 5 Zzo a COMPARATIVE FIRE TEST F Darmatt Traditional v New Darmatt 58@Es@

~ 400 - "N 2 ------>nw 0H - gs

P ' n5 cn 300 - oz a) ' :j g u - - { Darmatt Traditional ' g [ 200 - j - $ a x

121 C above Ambient _ . __ Q .; . m / Lu - /' New Darmatt 100 ---- o_ [ Ey 2 p f'7 a jg ;__ ""i i i . 1 i h 0 ~~" h- 0 20 40 60 80 100 120 140 160 180 200

;? TIME (mins) 'a a

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l 1 INTRODUCTION TO DARCHEM Document No. ! ENGINEERING INC AND COMMENTS ON DS/90-0015/1 i 711E NRC PROPOSALS Issue A Page 32 of 49 J

5. DESIGN PHIL1 SOPHY I i l 5.1. Desien Concept

It is the Darchem concept to design to suit the customers requirements, to this and a range of Darmatt composites will be constructed and Fire Tested to suit a variety of cable , tray and conduit sizes together with a range of cable fills. For example a 36" x 4" cable I tray requiring a 3 hr protection.

i Composite I will protect for a cable loading ranging from a single cable to a 24% fill. '

Composite 2 will protect for a cable loading ranging from 25% fill to a 49% fill.

Composite 3 will protect for a cable loading ranging from 50% fill to a 74% fill.

Composite 4 will protect for a cable loading ranging from 75% fill and over.

'Ihe reasons for not just designing a composite to suit for a single cable and using this ; composite for the full range of cable fills is three-fold.

| i | The protecuan system will be thicker. ' | 1. This will mean the customer paying more for a protection system than what is i required for the higher cable loadings. 2. The protection system will be heavier. This will mean a greater loading on the raceway supports which is accentuated in a seizmic event. 3. The protection system will trap mon heat during normal operating conditions increasing the ampacity derating of the cables.

5.2. System Protection

| | Darchem manufactures fire protection systems for all components of electrical systems. ' Protection schemes defend against outages and damage to electrical components.

, Cable Tray Trunking. DARMATT blankets can be fabricated for cable trays in one or ' - two piece wmps as appropriate to equipment and maintenance conditions. DARMATT has long term economical benefits for cable tray protection since its accessible design | makes adding or replacing wiring easy and economical. ! i Cable and Conduit Runs. DARMATT provides superior protection for conduits from i the instrumentation area to a point outside the fire hazardous area. Unlike other conduit I protection systems DARMATT conduit protection can be accessed and re-installed without damaging the fire protection material, making periodic maintenance and replacing of wiring less expensive.

Darchem i Engineering Inc !

,. _. . . ._.. _ . _ . ..- . _ _. . - INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS 1 1ssue A j Page 33 of 49

Actuators. Darchem Engineering Inc. manufacture accessible enclosures in an "end cap" l design to cover motoriz.ed valve actuators. Altemate designs accommodate unconunon siz.es and shapes of actuators, such as air or hydraulic units.

Control Stations. Control stations are either integrated with the actuator or located i remotely. Access panels are provided forintegrated actuators. Local remote controls can 1 also be protected and have releasable front panels for ease of access.

DARMATT has been designed to protect the following instrumentation and equipment. |

Cable trays (4" to 60" widths) Conduit, both single and multiple wrap Actuators, Valve Stems and Gear Drive Units Valves and Valve Flanges Junction Boxes i Control Boxes

Sensors ; Spdng Hangars Air Lines Structural Steel Control Rooms

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INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS Issue A Page 34 of 49

6. DESIGN AND TESTING FACILITIES

As pan of the Darchem Group the facility at Pasadena, Califomia, USA can enlist the services of the consultant design facility of Darchem Engineering, Stillington in the UK and the Independent Test facility of Faverdale Technology Centre, Darlington in the UK.

6.I. Consultant Desien Facility

The consultant Design Facility at Stillington is a multi-discipline group of professional engineers who undertake the design responsibilities for all Darchem Engineering's projects, along with specialised suppon to other Group member companies.

Within this department are qualified engineers, instrumentation specialists and physicists; whose expertise covers thennal analysis, heat transfer, chemical, civil and structural engineering, mechanical engineering, computer progranuning and modelling, supponed by extensive CAD facilities. This expertise is also available as a professional service to outside organisations.

Services include:

* Thermal Insulation * Fire Protection Systems * Acoustic Insulation * Module Design * Vessels and Pipework * Heavy Ductwork * Shock Mounting Systems * Heat Resistant Mountings * Low Pressure Containers * Heat Exchangers * Production Studies * Marine and Offshore Work

The Design facility is highly qualified as can be seen from the following certificates and photogmphs.

Darchem Engineering Inc INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/904)015/1 WE NRC PROPOSALS 1ssue A Page 35 of 49

. gg SYSTEM FOR TIIE ILEGISTIIADON OF FIILMS OF ASSESSED cal %BILITY

_ > Certificate- ofRegistration carV! m o 11:27 i mum- N, umber um _ . .

The D: rector. BSI Quabty Assumnce hereby gants to

CARCHEM ENGINEERING LIMITED STILL*NOTON STOCKTON-ON-TEES CLEVEtAND TS21 ILB

(heremafter called the Firm) the richt and licence to be hsted in the BSI Register of Firms of Assessed Capabihty in respect of the goods or semces partumlarly desenbed in the Appendix hereto, bearmg the same number as this Certificate. Goods shall be produced by the Firm at. or semees offered at or from only the address (es) given above. The Quahty Management System controlling the supply of the goods or semces described in the Appendix is in accordance with ISO 9001 . 1987 / EN 29001 1987 / SS 5750 : PART 1 e 1987

This Certificate of Registmtion is granted subject to the Regulations goverrungthe Recistration referred to above.

THIS CEFT*r!CATE SUPERSEOES CERT r:CATE Q 11227 OATEO 1 OECEMBER 1990

/ '- o ( Sicned for and on behalf of BSI Quabty Assurance # 6 ~ - * ' birector

Date 1 ' :== 1**2 1

i numMr%s mar eh w., (e M M % M.

66+ JAC lssued by _ . j BSI Quahtv Assurance PO Box 375 Milton Keynes MK14 6LL

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| I i INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS

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Approval unoer Page 1 of 4 ; BCAR Chapters

United Kingdom tB~ln8-i Aa-3 Civil Aviation Authority

Air Navigation Order Approval

plt Ol2EE !TlCER DAI/4254/54

Pursuant to the Aer Navegation Order for the time being in torre and subsect to the Conditions annexed hereto. the Civil Aviation Authority nereDy approves

CARCEDi DCI:ETC IOCD

as a person wno 45.

(al Qualified to f urnish reDorts to the Authority where thebe are required in relation to matters specified m Column 3 of the Seneduie hereto, oeing matters f alling witnin the ciass specified in column 2 of the %aed Scheoute.

(b) competent to issue Certificates of Release to Service wne's these are reouired in relation to the

overhaui. repair. repiacement. modification or inspection of a part or eouipment being a part or ,

eouipment of the class specified in column 2 of the Scheduie hereto and more preCi5ely specified 8n , column 3 of the said Scheduie:

This Approval shall remarn in force uneess susoenced. revosted or varieo.

Y|r l ,

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i for tne Cavel Aviation Authority

Oate B !C/D*BER 1991 4 Y4 W $$ !

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| __ _ ,_ _._. _ ' I ; INTRODUCTION TO DARCHEM Document No. ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS

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, [| TIIE NRC PROPOSALS 1ssue A Page 38 of 49 L -__.m-_.- . - - - ' ^ ~ ' ' " - -

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, ENGINEERING INC AND COMMENTS ON DS/90-0015/1 THE NRC PROPOSALS Issue A Page 40 of 49

6.2. Faverdale Technoloev Centre i Faverdale Technology Centre eu m atly undertakes the development and testing of safety-

: crideal plant and equipment for leading-edge industries including, aerospace, nuclear . ' power, defence, petrochemicals, and offshore. Testing expertise available at the Centre I includes fire and conductivity testing, chemical analysis, asbestos counting and, more ! recently, thermal imaging.

Faverdale Technology Centre now services extemal clients which include major i manufacturers -both in the United Kingdom and ovetseas - whilst at a more local level, ' the Centre undertakes testing and development for many consultancies and smaller firms within the Teesside area.

Fire Testing The Cente has a deck / beam furnace and a column fumace used to test the effectiveness ; of fire protection on structural members under loaded conditions and at temperatures in excess of 1100 degrees C. The column furnace is one of only two in the country. Other fire testing facilities at the Centre include an open pool fin -testing facility. The Centre has a variety of other fumaces available and specialises in developing fire-testing techniques to suit the customers' needs.

! Asbestos Services j Asbestos identification and fire counting are undertaken on samples submitted by

, Customers. i The Centre is a participant in the RICE scheme and carriers the highest possible ratmg. The Centre holds NAMAS accreditation for both fibre counting and fibre identification,

and can also provide a site sampling service, and advise customers on sampling | techniques. l | Physical Testing The Faverdale Technology Centre is equipped to offer the customets using its services ! a wide capability in the field of physical testing. This service grew from the development and quality control of thermal insulation and associated products manufactured by the Group's Chemical and Insulating Company also based at Darlington.

; Much of the test work undertaken complies with the methods detailed in BS 2972 " Methods of Test for Inorganic Thermal Insulating Materials, although ASTM methods have been adopted. i Among the equipment recently installed is a new fatigue test machine which performs vibmtion fatigue tests on specimens using compressive loads up to 300KN and tensile loads of up to 20KN. There is also a static test facility which is capable of testing specimens in both tension and compression at loads up to 30KN.

Darchem Engineering Inc

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Chemical Testing j

The Faverdale Technology Centre, as pan of a Group-wide expansion programme, now 4 includes a chemistry section; transferred from an existing laboratory within the insulation section, along with its own personnel.

The chemical section has gained an enviable amount of experience and expertise in the testing of insulation products and their raw materials for external customers. This includes analysis of materials and liquids to relevant British and American standards with contaminants such as chlorides, fluorides and sulphates.

Non Standard Testing With its professional team of specialists and engineers, its sophisticated test equipment and facilities, the Faveniale Technology Centre has the ability to carry out any type of , testing, from those already mentioned.

NAMAS Accreditation As an indication of the quality of service offered, the Centre is accredited by NAMAS

(National Measurement Accreditation Service). This is a scheme run by the National : Physical Laboratory, part of the Department of Trade and Industry, which checks both the ovem11 quality of laboratories and their expenise in the particular field of accreditation. At the. moment, the Centre is accredited for fire testing and asbestos

, services and is actively pursuing accreditation for other sections.

Projects currently being undertaken by the Centre range from the development and testing of equipment for the nuclear industry, the testing of safety related equipment for the nuclear industry, the testing of safety related equipment for offshore production platforms, and the testing and analysis of materials containing asbestos.

With its multi-discipline background the Centre can bring to bear its wide expertise to solve the most complex of problems; where a completely new product or system requires testing, a team of experienced personnel is always on hand to develop new procedures and practices.

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The following facilities are available at the Centre:

1 * Fire Testing * Physical Testing * Chemical Testing * Full-Scale Testing * Non-Standard Testing i * Design and Consultancy Service, for product design and test techniques * Pressure Vessels, for testing materials in various atmospheres * Radiation Testing I * In-service Inspection and Repair of Nuclear Reactors * Thermal Conductivity Testing * Fatigue Testing | * Asbestos Analysis and Air hionitoring '

The National hieasurement Accreditation Service (NAhiAS)

NAh1AS was formed is September 1985 by the amalgamation of the two laboratory accreditation services operated by the NPL, the British Calibration Service (BCS) and the National Testing Laboratory Accreditation Scheme (NATIAS). 1 _. ) NAhiAS accredits laboratories in industry and elsewhere as competent to undertake ' specified calibrations and other measurements and to issue certificates. A NAh1AS

Calibration Certificate indicates that the measurements are traceable to national standards 1 and provides a very high degree of assurance of the correctness of the calibration of the ' instrument identified on the certificate. I

NAhiAS accredits laboratories for general testing in much the same way as for calibration. testing laboratories may apply for accreditation over a wide range of testing services. Laboratodes found to satisfy the criteria concerning staff, equipment, geneml facilities and management etc., are granted accreditation for defined types of test.

NAh1AS issues a Directory of Accredited Laboratories indicating the types of calibration or test for which they have been granted accreditation. j

Relationships with ether organisations |

The National Physical Laboratory, in its capacity as the UK's national standards laboratory, is in daily contact with representatives of industry, government departments and commerce from all parts of Britain. Discussions and informal co-operation take place at all levels. Government departments, for example, seek the advice of the Laboratory in formulating policy and drafting proposed legislation. The Laboratory also provides both day-to-day advice and more extensive consuhancies on a repayment basis covering almost every aspect of measurement and the other fields of its work.

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Issue A Pace~ 43 of 49 l

Throughout its range of activities, the NPL undenskes special research investigations for , industry and other government depanments. Short-tenn and long-term contracts are I accepted whenever the specialised expenise or facilities at the NPL can be used and made available. All work undertaken on a fully funded repayment basis is treated in the { strictest confidence. I

In cenain of its international activities, the NPL has the fonnal responsibility of i mpresenting the United Kingdom. For example, in discussions on the definition of I fundamental units of measurement and the adoption of international primary standards, ' the NPL represents the UK on all the appropriate international bodies. Co-operation | between the NPL and other standards laboratories throughout the work is particularly : close.

An essential function of the Laboratory is to compare its measurement standards with those of other national laboratories in order to ensure the compatibility of UK j measurement systems with those of our trading panners, and to gain worldwide ' acceptance of measurements covered by NPL and NAMAS cenificates. i

| The NPL also plays an active part in providing technical suppon to national and ' intemational bodies concerned with specification algorithms for parallel computer | architectures, meluding the development of techniques for testing systems employmg parallel computation. |

The NAMAS Certificate, Schedule and Photographs of the facility are shown on the ' following pages. 1

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NATIONAL MEASUREMENT ACCREDITATION SERVICE .

TESTING LABORATORY - b m No. 0666 - Qj

. ~ ' SCHEDULE NAMAS

Acoress of permanent tacorato y Category 0 Permanent Laboratory wng p-amma on p.m we into.py pr.n Favercase Tecnnology Centre Ltd Favercate incastna Es:a:e Darhngton

, Co Darnam Laboratory Contac:: Mr C T M Hall ' DL3 OPX i

Teieonone : Darlingtont0325) 381220 tssue No: B Date: 20 August 1992

Ma:ena:s/Procuc:s Types of Test /Propertes Measurec Stancard Specifcations Testeo Range et Measurement Ecuipmerr./Techniaues Usea ! t

RreTens

AEROSPACE EQUIPMENT Ere resistance BS3G100;Part 2: Sect 3: i Sub Sect 3.13:1973(1983): App A i IIYDRAULIC EQUIPMENT and Rre resistance FITTINGS Documented in-House Method based on cellulosic curve PIPES and PIPELINE COMPONENTS (BS 476 Part 8:1972: | Rg I and BS 476 Part 20:1987 CONSTRUCTION PRODUCTS Rg 2) STRUCTURAL COMPONENTS and RXINGS Documented in-House Method based on hydrocarbon curve OITSHORE STRUCTURES INSULATING MATERIALS: (BRE 1985:BR65) THERMAL '

BUILDING MATERIALS Non.combustibiliry BS 476.Part 4:1970 (1984) and STRUCIURES Heat emission BS 476.Part 11:1982 (1988) BEAMS Ere resistance BS 476:Part 20:1987 BS 476 Part 21:1987: Sect 5 Bre Test Study Group Resoluuons 47 and 70 COLUMNS Bre resistance BS 476.Part 20:1987 BS 476.Part 21:1987: Sect 6 Fire Test Study Group Resolunons 47 and 70 Documented in-House Method based on Mobil hydrocarbon curve

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i NATIONAL MEASUREMENT ACCREDITATION SERVICE * .

b ~ TEST;NG 1.ABORATORY Category 0 I No.0666 Perrnanent tacoratory [

issuetaa: a ! SCHEDULE Date: 20 August 22 NAMAS

i -. 1 Maienats/Produc e Types of TessProcerties Measurea Stancarc Specifcaaons Testea Range of Measurement Equipmentfrechnmues used

! E - Tests cont'd |

WAIJ S and PARTIT10NS Bre resistance BS 476-Part. 20:1987 BS 476;Part 22:19875cct 5 j Fire Test Study Group ; ! Resolutions 68 and 70 1 Documented in-House Method ! based on Mobil hydrocarbon curve | COMPOSITES for Ign:tability BS 5852 Tart 11982: LTHOLSTERED SEATING Crib sources 4.5.6 and 7 ) BS $852:1990: Crib sources 4. 5. 6 and 7 '

ARMOURED CABLES for i Smoke Emission BS 6724:1986: App.F ELECTRICITY SUPPLY | BS 6853:1987: App.B ' | | lh2! r.d HvMene

AIRBORNE ASBESTOS Fibre counung RBRES ar.d DCSTS Membrane Elter Methods in amxdance wnh Health and Safety Execuuve MDHS 39B. June 1990

Documented in-liouse Methcxis ASBESTOS Idenuficanon ASBESTOS PRODUCTS Documented in-House Methods mclading: using stereo-macroscopy, polansed light opucal INSULATING MATERIALS. microscopy and dis;crsion SPRAYED COATINGS. suumng BOARDS. CEMENTS. FLOOR COVERINGS. FRICTION MATERIALS. G ASKETS. PLASTICS. RUBBERS. SURFACE RNISHES

END

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NAMAS, the assessment of laboratories and laboratory schedules About NAhiAS

The National Measurement Accreditation Service is a service of the National Physical | | Laboratory. NAMAS is the UK national unified accreditation service for calibration and testing ! laboratories. It was formed in 19S5 by the amalgamation of the British Calibration Service i (BCS) and the National Testing Laboratory Accreditation Scheme (N ATLAS).

The NAhiAS Executive consists of some 60 staff, of whom 45 are Technical Officers. NAMAS

| calls on a panel of over 300 independent assessors, expert in the particular work being assessed.

Assessment of laboratories , A laboratory seeking NAMAS accreditation has to satisfy NAMAS Technical Officers and independent assessors that it operates a quality system to the rigorous standards laid down by NAMAS. Central to the NAMAS requirements is the laboratory's Quality Manual, which must cover the policies and procedures for every calibration or test made, and for all activities that may have a bearing on the quality of work done. It must also include procedures for verifying that the Manualis followed at all times.

, Following successful assessment, NAMAS will issue a schedule of accreditation to the # ! laboratory, which will specify those calibrations or tests the laboratog has been accredited for, | and for which it may issue NAMAS certificates. Test reports and certificates will indicate e ! the test used, the material or product tested and the test method employed. Calibration 4 certificates willindicate the uncertainty of measurements as well as a statement of traceability ? | to national standards. *|[ i | | It is in the interest of customers to specify a requirement for a NAMAS Report or Certificate for work done by NAMAS accredited laboratories. t

There are currently over 1000 accredited laboratories - approximately 270 calibration and 730 testing laboratories. All laboratories are re-assessed at regular intervals. NAMAS-accredited laboratories meet the requirements of ISO Guide 25 and EN45001 - the European standard for

the competence of calibration and testing laboratories. ! ,

You can send for further information on NAMAS and accreditation by using the form at the : 1 i i back of this Directory. . t -: i, ,

t I ! Publishing laboratory schedules J

. NAMAS publishes a Directory consisting of all the schedules of all NAMAS accredited | ! ' calibration laboratories, under the title M5: NAMAS Directorv Part 1- BCS-Accredited Calibration | L:baratories. It is available on subscription of fl00, which covers the Directory and 3 years' updates, which are issued at 4 - 6 monthly intervals. ;

You may subscribe to M5 by using the Order Form at the back of this directog 1 i

There is no equivalent publication of testing laboratories' schedules. e f.

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