All of our Cast Iron Calibration Weights comply with regulations set out by the International Organization of Legal Metrology and ASTM norms for Class M1 to M3 cast -iron weights.
When required independent certification can be provided under any accreditation.
Bar or Hand Weights are supplied finished in high quality Matt Black Etch Primer and calibrated to a variety of tolerances which you can view in our chart.
Hand Weights are supplied finished in high quality Matt Black Etch Primer and r Weights