Calibration Vs Conformity Certificates

#1
Hi,


Our Quality Manual currently calls for an initial full range calibration followed by an annual ice point or boiling point check for the mercury in glass thermometers we use.

I recently purchased thermometers but the thermometers didn't come with calibration certs but rather conformity certs? My question is, can a conformity certificate replace a calibration cert when an auditor comes around to check my records?
:confused:
 
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Jim Wynne

Staff member
Admin
#2
Hi,


Our Quality Manual currently calls for an initial full range calibration followed by an annual ice point or boiling point check for the mercury in glass thermometers we use.

I recently purchased thermometers but the thermometers didn't come with calibration certs but rather conformity certs? My question is, can a conformity certificate replace a calibration cert when an auditor comes around to check my records?
:confused:
Welcome to the Cove. :D

If your own requirements are for full-range calibration and that hasn't been done, you have a nonconformity. You can always change the requirement to what's actually needed. Whether or not the thermometers should be calibrated is another question. I don't know if you have a certified QMS and if you do, which standard is involved, but ISO 9001:2008 and most of its derivatives say that calibration is required "Where necessary to ensure valid results..."
 

BradM

Staff member
Admin
#3
In addition to Jim's points:

The "value" of conformity certificates vary depending on their content, and from my ever-so limited experience, they range from very little use to not very useful at all.

Typically there is no traceability listed on it, and they are issued for a batch or model of instruments. They may test one instrument produced on a given day, and then issue the conformance certificate for all the instruments made on that day. I have yet to see one that has specific information relating to the particular instrument.

Like Jim stated, it's really about what you require. But I typically dispose of the conformance certificates I receive for equipment.

Add edit: I went ahead and moved your thread to the general metrology forum.
 
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