Calibrating vs Verifying Measuring Instruments
Looking for some collaboration on a standard that prescribes how gauge management is structured in our business.
Is anyone familiar with NSF-14?
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Are you referring to Certification of Plastic Piping Products: NSF/ANSI 14 and NSF/ANSI/CAN 61?  I have some exposure to them but not an expert.

In metrology terms, there are differences. Calibration includes determination of measurement uncertainty (MU) to complete the chain of traceability to the national or international standard. Anything less and it is verification.  If you are not able to work out the MU, it is verification. Also, if you need an ISO 17025 level calibration, then an ISO 17025 certified metrology lab should be used.