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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