Calibration Weight Set
OIML weight sets include a complete group of test weights that can meet requirements for testing to OIML standards. E1 weight sets offer the highest level accuracy for standards of reference. E2 weight sets provide a high level of accuracy and are ideal for calibrating analytical and precision balances. F1 weigh sets are used to calibrate precision and legal-for-trade class II balances. M1 weight sets offer a lower level of accuracy, but are affordable and ideal for calibrating compact portable balances and bench scales.