I learned last week that according to the ISO/IEC 17025, calibration tags are not necessary (applied by calibrating laboratory), and if they are applied, then they must not contain the next calibration date, unless as a suggestion (and this is only if requested by the customer). Rather, the manufacturer must determine the serviceable status of the equipment and then either 1) apply tags with this info, or 2) store the info on record and ensure that no non-serviceable equipment is readily accessible in the lab for using.
Our old system of tagging was more like a company-applied calibration tag (a concept that does not seem to currently exist). This method did not make any determination of serviceable status, only the actual and next calibration dates.
I am now considering redoing the system, and am not sure what system to prefer (1 or 2) or a third. Do you have a suggestion?,
Thank you,
Avraham