OIML Test Weights 1 mg to 50 kg — Classes F1 and F2

These weights comply with the international recommendation OIML R111. They are intended for calibrating weights of lower classes and for use with class I (special accuracy) and class II (high accuracy) weighing instruments. They can also serve as check weights and generally come with a calibration certificate. F1 and F2 weights can be supplied individually or as a set (plastic case with foam lining, or wooden box with velvet lining).