Adam Equipment ASTM 1 1g - 500g Calibration Weight Set

ASTM weight sets include a complete group of test weights that can meet requirements for testing to ASTM standards. Class 1 and 2 weight sets provide a high level of accuracy and are ideal for calibrating analytical and precision balances. Class 4 weight sets offer a lower level of accuracy, but are affordable and ideal for calibrating compact portable balances and bench scales. Click here for Adam Equipment E2 1mg - 200g Calibration Weight Set  Also, check out Calibration Kit, Temperature by A&D