This Proficiency Test is for a Mitutoyo External Micrometer 0-25 mm x 0.001 mm. Labs will be expected to calibrate the instrument and complete the results report within the timeframe allowed. Timeframes and complete requirements are advised in the protocol document that you can download below. Registrations are now closed. Please get in touch if you are interested in this proficiency test so we can run it again if there is demand.