OIML Precision Weights

OIML Precision Weights

OIML Precision Weights conform to the standards of the Organisation Internationale de Metrologie Legale International Recommendation 111-1 (OIML R 111). The weights are manufactured from the finest stainless steels available including Troemner Alloy 8 Stainless Steel.

Individual sizes are available from 1 mg to 50 kg and sets from 500 mg-1 mg to 50 kg-1 mg.
Weights are calibrated to Troemner UltraClass Series, Class E0*, or OIML Class E1, E2, F1, and F2.

* E0 is a theoretical tolerance that is 50% of OIML R 111 Class E1

  • Metric Individual Weights
    Available styles:
    • Flat (1 mg to 500 mg)
    • Wire (1 mg to 500 mg)
    • Cylinder
    Metric sizes:
    • 1 mg to 50 kg
    Tolerance Class:
    • Troemner UltraClass Series
    • Class E0*
    • OIML Class E1, E2, F1, F2
  • Metric Weight Sets
    Available weight sets:
    • 50 kg-1 mg to
    • 500 mg-1 mg
    Tolerance Class:
    • Troemner UltraClass Series
    • Class E0*
    • OIML Class E1, E2, F1, F2