NIST Handbook 44 - Current Edition

Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices
Current Version - 2024

as adopted by the 108th National Conference on Weights and Measures

Full Document PDF

• Title Page PDF
• Abstract, Foreword, Author Contributions | PDF
• Committee Members, and Past Chairman | PDF
• Table of Contents for Document  | PDF
• 2023 Amendments/Editorial Changes | PDF
• Introduction | PDF

Section 1

• 1.10. General Code   PDF | DOCX

Section 2

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

Section 3

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

Section 4

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

Section 5

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

Appendices

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

Previous Handbook Editions