I'm confused with your question... are you performing calibrations for other companies? Are you a laboratory seeking accreditations? Or are you manufacturing products and trying to control the measurements of instruments in your QMS? Not sure why you would want to be ISO:17025 certified.... ??
Assuming that you're a device manufacturing company and trying to be 13485 compliant, you as a company can decide what/how you want to control your instruments. Whether you contract out, or perform calibrations in-house can be determined by you. You just need to show/prove that you are controlling the measuring of equipment in your QMS.
When it comes to deciding calibrations for instruments, you need to look at the complexity of the instrument... what is it used for? Is there software involved? is it just a bloody hammer? In your QMS, you should have some kind of Master Equipment LOG (MEL). This MEL has ALL instruments on-site in a list format, showing what instruments are currently being used, what instruments are out of service, and what instruments are being repaired... stuff like that. This MEL has a unique number (ID assigned by your company that allows you to track a specific instrument), serial number, model number, location, calibration performed, calibration interval, some kind of instrument classification (A,B, or C ect.) letting you know what equipment needs calibrations/validations/verifications ect., basically an MEL is one big list of all the equipment being used by your company.
Through this MEL, you'll be able to set up calibration intervals.. according to NIST, a 1 year calibration interval is acceptable, however, calibration intervals SHOULD be set through the equipment manual provided by the manufacture of the instrument. Most cases, the manual will be your best friend when determining intervals. Also, just because the manual says annual calibrations are the minimal requirement, doesn't mean that's what you should do. The integrity of the instrument comes into play as well... how often is it being used, are you starting to notice discrepancies after use. You may calibrate an instrument and 3 months later it's starting to perform out-of-spec, thus needing to be recalibrated. And vice versa. You may have an instrument set up on a 3 month interval and noticed after several calibration intervals the instrument is still operating to spec, thus you could increase the interval.
If you're lucky, you might purchase an instrument and there are no instructions/manuals... in this case it would be wise to not do business with these companies, because you'll run into problems down the road.. speaking from experience. That is rare, but it does happen.
Instruments that can't be calibrated due to lack of complexity can be verified for performance. Some instruments can't be calibrated, simply because there are no tolerances associated. These instruments are considered more of a tool and non-critical and don't need to be tracked on the MEL.
Tolerance risk assessment LOL... ubber waste of time. If an instrument is out of spec and continues to stay out of spec, after calibrations/repairs, then retirement of the instrument, or a simple discard would suffice.
Hope this helps.
CHEERS!!
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Lance Tovar
RA/QA Specialist
Roy UT
United States
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Original Message:
Sent: 26-Jan-2021 13:57
From: Anonymous Member
Subject: Equipment Calibration and Verification
This message was posted by a user wishing to remain anonymous
Happy New Year to all the wonderful regulatory/quality professionals!!
I am trying to understand the requirements as it relates to equipment calibrations.
We are not ISO17025 certified, but we aim to comply. Currently, we have a few pieces of equipment that we can't calibrate in house, but we can verify in house. Are we allowed to "verify" equipment and if it meets specifications, not send for calibration? Therefore the verification records would replace the calibration. Or are we required to conduct an annual calibration?
Of course, if it does not meet specifications, we would send it out for calibration and conduct an out of tolerance risk assessment.