• Table of Contents
• Ordering Mass Standards or Test Weights
• Accuracy Classes for Mass Standards & Test Weights
• International Laboratory Weights & Precision Mass Standards Weight Classification (OIML)
• U.S. Laboratory Weights & Precision Mass Standards Weight Classification (ASTM)
• U.S. Filed Standard Weight Classification
• Conversion Factors for Units of Mass
• Metric Weight Tolerances
• Avoirdupois Weight Tolerances

11

• Traceability
• Accuracy, Traceable and Calibration Certificates
• How Will a NVLAP-Accredited Calibration Lab Benefit Me?
• NVLAP Traceable Certificate
• NVLAP Weight Calibration
• Traceable & Calibration Certificate Ordering Information & Definitions
• Calibration Service Selection Guide

• Precision Laboratory Stainless Steel Weight Sets
  • Metric
  • Avoirdupois
• Precision Laboratory Stainless Steel Individual Weights
  • Metric
  • Avoirdupois
• Mass Standards
• OIML Precision Laboratory Stainless Steel Weight Sets
• OIML Precision Laboratory Stainless Steel Individual Weights

20

684K

• Electronic Balance Calibration Weights
  • Metric
  • Avoirdupois
• Individual Weights/Class F and ASTM Class 6
• Avoirdupois Cylindrical Weight Sets/Class F
• Metric Cylindrical Weight Sets/Class F

19

860K

• Grain Weights
• Avoirdupois to Metric Conversion Weight Sets/Class F
• Troy & Pennyweight Sets/Class F
• Sealer Weight Sets/Class F
  • Avoirupois
  • Metric
• Lab Weight Accessories

8

545K

• Cast Iron Test Weights
• Interlocking Weights & Hangers
• Counterpoise Weights & Hangers
• Heavy-Capacity Weight Accessories

7

369K

• Equipment Return Information
• Warranty Statement