Calibration Weight Nominal Mass 5 mg Calibration Weight Class 2 Calibration Certificate NVLAP - Accredited 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 0.065 in Overall Length 0.134 in Overall Width 0.137 in Calibration Tolerance 0.014 mg