M1 Weights
OIML class M1 weights are weights of cast iron or brass that are used for testing Class III machines.
At 1 kg the error allowance for an M1 weight is ±50 mg and the uncertainty of calibration is ±10 mg.
All calibrations are traceable to National Standards and details of this traceability are included in the certificate.
Cleaning, painting and numbering of weights can be provided at additional charge.