Weight 1P ASTM 20mg CL1 Non-Accrd TR - 30391580 Troemner ASTM Class 1-4 offer high accuracy with tight tolerances and uncertainties of less than 1/4 of the tolerance. Weight surfaces meet or exceed ASTM and have a highly polished finish. Available in high grade stainless steels including Troemner Alloy 8 which possesses closely controlled density, extremely low magnetic properties, good stability, and resistance to corrosion. Available with certificate options traceable to NIST including ISO/IEC 17025 Accredited Certificate or Traceable Certificate to aid in meeting SOP and regulatory requirements. Family Tag Line: Individual Calibration Weights Adjusted to Meet or Exceed ASTM Class 1-4 Tolerances Family Name: ASTM Individual Calibration Weights Applications: Use Class 1 as a primary reference to calibrate other mass standards and use for traceability between national mass standards and ASTM Class 2 weights and lower. Class 1 is appropriate for calibrating high-precision balances with readability as low as 0.1mg. Construction: One-piece Design Features: Knob style weights 50kg–1 g are cylindrical with knob. Cal-Pak 5kg weight is a grip handle weight. Cylindrical style weights 1kg–5k have groove. Cylindrical grip style weights 4kg–30kg have recessed grip. Cylindrical weights 10g–600g are straight cylinder. Family Overview: ASTM Individual Calibration Weights Model No.: Weight 1P ASTM 20mg CL1 Non-Accrd TR Calibration Certificate: Traceable Certificate ASTM Class: 1 OIML Class: Weight Value: 20 mg Weight Set Range: Design: Flat Weight Material: 304 Stainless Steel Protective Case: Supplied in high quality polycarbonate case with red insert Construction: One-piece Density at 20°C: 7.95 g/cm3 Dimensions: 0.15 in x 0.08 in x 0.18 in (0.39 cm x 0.203 cm x 0.47 cm) (LxHxW) Dimensions in Case: 2.5 in x 2 in (6.35 cm x 5.08 cm) (HxØ) Set Capacity: Set Contents: Set Total Pieces: Uncertainty: Weight Tolerance0.01 mg Wgt Origin (USA): USA