Description:
Ohaus-Troemner 80781022 ASTM Class 1 Weight Set, 500mg-1mg, Certified - B1902-1C. 12 total pieces. Ships with ISO/IEC 17025 Accredited Certificate. Use Class 1 weights 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.