Calibration Weight Kit Nominal Mass 100g to 1mg Calibration Weight Class 1 Calibration Certificate No Certificate Calibration Weight Style Cylinder and Leaf Calibration Weight Material 304 Stainless Steel Alloy 8 Stainless Steel Aluminum Measurement Type Metric Includes 100g 50g (2) 20g 10g 5g (2) 2g 1g 500mg (2) 200mg 100mg 50mg (2) 20mg 10mg 5mg (2) 2mg 1mg Weights Case Forceps Number of Pieces 21 Finish Polished Calibration Weight Compliance Agency ANSI ASTM