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NIST Handbook 44 - Current Edition
Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices
Current Version - 2025
as adopted by the 109th 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
- 3.41. Non-Utility Electricity-Measuring Systems – Tentative Code 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
Contacts
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General Information - OWM
Created November 29, 2021, Updated January 8, 2025