21 CFR 820.72 (Inspection, Measuring, and Test Equipment) says:
I'm interpreting this as reading: "if a piece of equipment is used for any inspection, measurement, or test, it must be routinely calibrated, inspected, checked, and maintained."
Is my interpretation incorrect? If not, is there no way to justify not doing this on the basis of risk?
For example, we have calipers used in receiving inspections to confirm the distance between drilled screw-holes is correct prior to admitting into inventory. This check is in place for the sole purpose of avoiding discovering that the holes are mis-aligned later during assembly. It has NO EFFECT on final product. Our risk assessment is as follows:
It seems reasonable that this would be acceptable justification for not requiring a calibration schedule for the calipers. Sure, they make an inspection measurement, but there is ultimately no product/consumer impact.
However, by my interpretation of the regulation, there is not allowance for such a justification.
Curious what others think...
MM.
"Each manufacturer shall ensure that all inspection, measuring, and test equipment, including mechanical, automated, or electronic inspection and test equipment, is suitable for its intended purposes and is capable of producing valid results. Each manufacturer shall establish and maintain procedures to ensure that equipment is routinely calibrated, inspected, checked, and maintained."
I'm interpreting this as reading: "if a piece of equipment is used for any inspection, measurement, or test, it must be routinely calibrated, inspected, checked, and maintained."
Is my interpretation incorrect? If not, is there no way to justify not doing this on the basis of risk?
For example, we have calipers used in receiving inspections to confirm the distance between drilled screw-holes is correct prior to admitting into inventory. This check is in place for the sole purpose of avoiding discovering that the holes are mis-aligned later during assembly. It has NO EFFECT on final product. Our risk assessment is as follows:
- Any non-conformities have 100% detectability during assembly (as you simply will not be able to sink the screw if the hole is not aligned).
- EVEN IF it were possible, the screws are redundant - in other words, even if 1 or 2 screw holes are off, the other screws are sufficient to secure the part.
- EVEN IF the part is not secure, this does not result in a hazardous situation (the part being secured is aesthetic in nature)
It seems reasonable that this would be acceptable justification for not requiring a calibration schedule for the calipers. Sure, they make an inspection measurement, but there is ultimately no product/consumer impact.
However, by my interpretation of the regulation, there is not allowance for such a justification.
Curious what others think...
MM.