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Calibration Certificates Missing Recal Dates

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#88085

Calibration Certificates Missing Recal Dates | 10 June, 2022

I recently went through an AS9100D audit and discovered one of my equipment manufacturer's calibration certificates and stickers do not have a recal/expiration date. I realize ISO17025 stipulates the user is responsible for determining appropriate calibration intervals; however in practice almost all cal certs I've seen contain manufacturer-supplied recal/expiration dates except those from this one supplier. We were able to convince our auditor this was ok by virtue of thorough documentation. However I'm interested in hearing about others' experiences with this question. I'm afraid a different future auditor might have a stricter interpretation of this absence, and view it is a red flag indicating poor supplier control. How have others handled this omission?

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#88098

Calibration Certificates Missing Recal Dates | 14 June, 2022

What type of machine? Usually the service manual will have calibration intervals recommended.

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#88101

Calibration Certificates Missing Recal Dates | 14 June, 2022

Typically when you install equipment, you generate some maintenance schedule based on manufacturer's recommendation. For certain equipment we do Ppk analysis on intervals to prove it works in spec. If equipment is in spec and working as expected, there is nothing for you to re-calibrate. Audits often drive creativity from people to do things that they should not do.

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