OIML M1, M2 & M3 Test / Calibration Weights & Sets

  1. Ohaus OIML M1 Test Weight (Cylindrical, Al, Brass, Nickeled Brass, SS, 1g - 10kg) - Optional Certificate
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    Ohaus OIML M1 Test Weight (Cylindrical, Al, Brass, Nickeled Brass, SS, 1g - 10kg) - Optional Certificate
    (no reviews)
    £15.11 £12.59
    • Round weight
    • Available in 1g to 10kg
    • Calibration Certificate available
    12 Reward Points
    Price Match Guarantee
    OIML-M1-SS-CYL
  2. Ohaus OIML M3 Test Weight (Cylindrical Shape, Stainless Steel, 1g - 10kg) - Optional Certificate
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    Ohaus OIML M3 Test Weight (Cylindrical Shape, Stainless Steel, 1g - 10kg) - Optional Certificate
    (no reviews)
    £15.78 £13.15
    • Stainless steel
    • Cylindrical shaped
    • Weights range from 1g - 10kg
    13 Reward Points
    Price Match Guarantee
    OIML-M3-SS-CYL
  3. Ohaus OIML M1 Test Weight (Rectangular Shape, Iron) - 5, 10 or 20kg
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    Ohaus OIML M1 Test Weight (Rectangular Shape, Iron) - 5, 10 or 20kg
    (no reviews)
    £101.27 £84.39
    • Cast iron
    • Rectangular weight
    • Available in 5kg, 10kg or 20kg
    84 Reward Points
    Price Match Guarantee
    OIML-M1-IRON-REC
  4. Ohaus OIML M1 Test Weight Set (Cylindrical, Al, Brass, SS, 500mg-1mg - 2kg-1g) - Choice of Weight
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    Ohaus OIML M1 Test Weight Set (Cylindrical, Al, Brass, SS, 500mg-1mg - 2kg-1g) - Choice of Weight
    (no reviews)
    £110.52 £92.10
    • Weight set
    • Range from 500mg-1mg - 2kg-1g
    • Adjusted to meet or exceed OIML M1 tolerance
    92 Reward Points
    Price Match Guarantee
    OIML-M1-W-SET

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About OIML M1, M2 & M3 Test / Calibration Weights & Sets

The M1 precision class allows for the use of these weights for the check and calibration of scales and instruments in class III up to 10000e. M2 weights are Precision weights for testing, calibrating, and adjusting trade balances. Class M3, suitable for use with OIML accuracy class III or IV weighing instruments. The maximum permissible error from the nominal value at 1 kg is ±500 mg.

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