Calibration Weight Kit Nominal Mass 200g to 200mg Calibration Weight Class 1 Calibration Certificate Accredited Calibration Weight Style Cylinder and Leaf Calibration Weight Material Alloy 8 Stainless Steel Measurement Type Metric Includes 200g 20g 200mg Weights Carry Case Number of Pieces 3 Finish Polished Calibration Weight Compliance Agency ANSI ASTM