Stainless steel OIML calibration weights (masses), for the external calibration of electronic balances. These weights meet the requirements for testing to OIML standards (Organisation Internationale de Métrologie Légale / The International Organization of Legal Metrology). F1 weights provide a high level of accuracy and are ideal for calibrating analytical and precision balances with a readability of 0.001g and 0.01g. M1 weights provide a slightly lower level of accuracy, but are more economically priced, and are suitable for calibrating compact portable balances with a readability of 0.1g or less.
Even more precise E2 calibration weights, and complete M1 and F1 weight sets, can also be supplied on request.