Calibration Weight Nominal Mass 500 mg Calibration Weight Class 2 Calibration Certificate Statement of Accuracy Calibration Weight Style Leaf Calibration Weight Material Stainless Steel Measurement Type Metric Includes Vial Number of Pieces 1 Finish Polished Calibration Weight Compliance Agency ASTM Overall Height 0.145 in Overall Length 0.382 in Overall Width 0.375 in Calibration Tolerance 0.025 mg