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Physical Measurement Laboratory

Office of Weights and Measures

NIST Handbook 44 - Current Edition

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At the 2018 NCWM Annual meeting item LMD-2 was adopted adding a part (e) to paragraphs S.1.6.7. & S.1.6.8. in Section 3.30. Liquid-Measuring Devices of NIST Handbook 44 to require an alpha or numeric dispenser designation be printed on the receipt for retail devices covered under these paragraphs.  This change was reflected in the 2019 version of NIST Handbook 44 but was inadvertently removed from the 2020, 2022, and 2023 versions of NIST Handbook 44. This omission has been identified and corrected.
NIST Handbook 44 Specifications, Tolerances, and other Technical Requirements for Weighing and Measuring Devices, as adopted by the 107th National Conference on Weights and Measures

Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices
Current Version - 2023

as adopted by the 107th National Conference on Weights and Measures

 

Full Document PDF

 

 

Section 1

Section 2

  • 2.20. Scales DOCX | PDF
  • 2.21. Belt-Conveyor Scale Systems DOCX | PDF
  • 2.22. Automatic Bulk Weighing Systems DOCX | PDF
  • 2.23. Weights DOCX | PDF
  • 2.24. Automatic Weighing Systems DOCX | PDF
  • 2.25. Weigh-In-Motion Systems – Used for Vehicle Enforcement Screening – Tentative Code DOCX | PDF

Section 3

  • 3.30. Liquid-Measuring Devices DOCX | PDF
  • 3.31. Vehicle-Tank Meters DOCX | PDF
  • 3.32. Liquefied Petroleum Gas and Anhydrous Ammonia Liquid-Measuring Devices DOCX | PDF
  • 3.33. Hydrocarbon Gas Vapor-Measuring Devices DOCX | PDF
  • 3.34. Cryogenic Liquid-Measuring Devices DOCX | PDF
  • 3.35. Milk Meters DOCX | PDF
  • 3.36. Water Meters DOCX | PDF
  • 3.37. Mass Flow Meters DOCX | PDF
  • 3.38. Carbon Dioxide Liquid-Measuring Devices DOCX | PDF
  • 3.39. Hydrogen Gas-Measuring Devices – DOCX | PDF
  • 3.40. Electric Vehicle Fueling Systems DOCX | PDF

Section 4

  • 4.40. Vehicle Tanks Used as Measures DOCX | PDF
  • 4.41. Liquid Measures DOCX | PDF
  • 4.42. Farm Milk Tanks DOCX | PDF
  • 4.43. Measure-Containers DOCX | PDF
  • 4.44. Graduates DOCX | PDF
  • 4.45. Dry Measures DOCX | PDF
  • 4.46. Berry Baskets and Boxes DOCX | PDF

Section 5

  • 5.50. Fabric-Measuring Devices DOCX | PDF
  • 5.51. Wire- and Cordage-Measuring Devices DOCX | PDF
  • 5.52. Linear Measures DOCX | PDF
  • 5.53. Odometers DOCX | PDF
  • 5.54. Taximeters DOCX | PDF
  • 5.55. Timing Devices DOCX | PDF
  • 5.56 (a). Grain Moisture Meters DOCX | PDF
  • 5.56 (b). Grain Moisture Meters DOCX | PDF
  • 5.57. Near-Infrared Grain Analyzers DOCX | PDF
  • 5.58. Multiple Dimension Measuring Devices DOCX | PDF
  • 5.59. Electronic Livestock, Meat, and Poultry Evaluation Systems and/or Devices DOCX | PDF
  • 5.60. Transportation Network Measurement Systems – Tentative Code DOCX | PDF

Appendices

  • A. Fundamental Considerations DOCX | PDF
  • B. Units and Systems of Measurement DOCX | PDF
  • C. General Tables of Units of Measurement DOCX | PDF
  • D. Definitions DOCX | PDF

Previous Handbook Editions

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Created November 29, 2021, Updated August 15, 2023