NIST Handbook 133 Checking the Net Contents of Packaged Goods
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2013 National Conference on Conference National as adopted by the 97th as adopted by Weights and Measures 2012 and Measures Weights 2013 2013 NISTTechnical Publications Periodical Journal of Research of the National Institute of Standards and Technology—Reports NIST research and development in metrology and related fields of physical science, engineering, applied mathematics, statistics, biotechnology, and information technology. Papers cover a broad range of subjects, with major emphasis on measurement methodology and the basic technology underlying standardization. Also included from time to time are survey articles on topics closely related to the Institute’s technical and scientific programs. Issued six times a year. Nonperiodicals Monographs—Major contributions to the technical literature on various subjects related to the Institute’s scientific and technical activities. 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NIST Handbook 133 Checking the Net Contents of Packaged Goods as adopted by the 97th National Conference on Weights and Measures 2012 Editors: Linda Crown David Sefcik Lisa Warfield Carol Hockert, Chief Office of Weights and Measures Gaithersburg, MD 20899-2600 U.S. Department of Commerce Dr. Rebecca Blank, Acting Secretary National Institute of Standards and Technology Patrick D. Gallagher, Director NIST Handbook 133 2013 Supersedes Fourth Edition, January 2011 Certain commercial entities, equipment, or materials may be identified in this document in order to describe an experimental procedure or concept adequately. Such identification is not intended to imply recommendation or endorsement by the National Institute of Standards and Technology, nor is it intended to imply that the entities, materials, or equipment are necessarily the best available for the purpose. National Institute of Standards and Technology Handbook 133, 2013 Edition Natl. Inst. Stand. Technol. Handb. 133, 2013 Ed. 184 Pages (Nov. 2012) CODEN: NIHAE2 U.S. GOVERNMENT PRINTING OFFICE WASHINGTON: 2012 Internet: bookstore.gpo.gov Phone: toll free (866) 512-1800; DC area (202) 512-1800 Fax: (202) 512-2250 Mail: Stop SSOP, Washington, DC 20402-0001 ISBN 0-16-051249-2 Foreword This handbook has been prepared as a procedural guide for the compliance testing of net content statements on packaged goods. Compliance testing of packaged goods is the determination of the conformance of the results of the packaging, distribution, and retailing process (the packages) to specific legal requirements for net content declarations. This handbook has been developed primarily for the use of government officials. However, it should also be useful to commercial and industrial establishments in the areas of packaging, distribution, and sale of commodities. In conducting compliance testing, the conversion of quantity values from one measurement system to another (e.g., from the metric system to the avoirdupois system) should be handled with careful regard to the implied correspondence between the accuracy of the data and the number of digits displayed. In all conversions, the number of significant digits retained should ensure that accuracy is neither sacrificed nor exaggerated. For this 013 edition of Handbook 133 all dimensions for test procedures, devices, or environments have been rounded to two significant digits (e.g., 2.5 cm to 1.0 in) or to a precision level applicable to the test equipment (e.g., 200 kPa for 25 psi and 35 MPa for 5,000 psi). You are invited to provide online feedback regarding this document at: https://www.surveymonkey.com/s/customer-satisfaction-pub or by e- mail to: [email protected]. iii Committee Members Committee on Laws and Regulations of the 97th Conference Judy Cardin, Wisconsin Raymond Johnson, New Mexico Richard Lewis, Georgia Tim Lloyd, Montana Louis Sakin, Towns of Hopkinton/Northbridge, Massachusetts Associate Membership Committee Representative: Rob Underwood, Petroleum Marketers Association of America Packaging and Labeling Subcommittee: Christopher Guay, Procter and Gamble Canadian Technical Advisor: Lance Robertson, Measurement Canada NIST Technical Advisors: Lisa Warfield, David Sefcik iv Past Chairmen of the Committee Conference Chairman Conference Chairman 41 G. H. Leithauser, MD 69 W. R. Mossberg, CA 42 F. M. Greene, CT 70 E. Skluzacek, MN 43 F. M. Greene, CT 71 D. Stagg, AL 44 G. L. Johnson, KY 72 A. Nelson, CT 45 R. Williams, NY 73 K. Simila, OR 46 J. H. Lewis, WA 74 K. Simila, OR 47 J. H. Lewis, WA 75 S. B. Colbrook, IL 48 J. H. Lewis, WA 76 A. Nelson, CT 49 J. H. Lewis, WA 77 B. Bloch, CA 50 L. Barker, WV 78 F. Clem, OH 51 L. Barker, WV 79 B. Bloch, CA 52 M. Jennings, TN 80 S. Rhoades, AZ 53 W. A. Kerlin, CA 81 L. Straub, MD 54 J. F. Lyles, VA 82 S. Millay, ME 55 J. F. Lyles, VA 83 K. Angell, WV 56 S. D. Andrews, FL 84 K. Angell, WV 57 S. D. Andrews, FL 85 S. Morrison, CA 58 S. D. Andrews, FL 86 R. Williams, TN 59 R. M. Leach, MI 87 P. D’Errico, NJ 60 R. L. Thompson, MD 88 D. Johannes, CA 61 C. H. Vincent, Dallas, TX 89 D. Johannes, CA 62 C. H. Vincent, Dallas, TX 90 J. Gomez, NM 63 J. T. Bennett, CT 91 J. Benavides, TX 64 R. W. Probst, WI 92 J. Cassidy, MA 65 D. I. Offner, MO 93 Vicky Dempsey, OH 66 J. J. Bartfai, NY 94 Joe Gomez, NM 67 J. J. Bartfai, NY 95 Joe Benavides, TX 68 J. J. Bartfai, NY 96 John Gaccione, NY v Table of Acronyms Acronym Term AMAV Adjusted Maximum Allowable Variation ANGW Adjusted Nominal Gross Weight AOSA Association of Official Seed Analysts ASEL Adjusted Sample Error Limit ASTM American Society for Testing Materials International CFR Code of Federal Regulations CGA Compressed Gas Association EPA Environmental Protection Agency FDA Food and Drug Administration FDCA Food, Drug and Cosmetic Act FPLA Fair Packaging and Labeling Act FSIS Food Safety and Inspection