ISO Calibration of Measuring Devices is a requirement of ISO 9001:2015 clause 7.1.5. (external link). According to this standard, when measurement traceability is a requirement, organizations wishing to obtain the ISO 9001 certification are required to calibrate all devices used to measure. The purpose of this clause is to ensure the quality of measuring equipment that they are accurate, up to date and can be precisely used for their intended purpose.
This is one of the most common forms of non-conformity found by ISO auditors. Measuring devices used by companies can be tape measures, micrometers, depth gages, ring gages, pin gages, multimeters, temperature gages, PH meters, colorimeters, weight scales, etc.
CALIBRATION OF MEASURING PERFORMED BY MACHINES
Calibration is also required when the measuring is performed by machines. When measurements are performed by machines, equipment or even digital computer software, you may follow the recommendations of the manufacturer. The software can be validated before use. All the equipment must be properly calibrated and adjusted prior to performing the measurement activity.
LABORATORIES CALIBRATION MEASURING DEVICES
There are specific laboratories that specialize in the calibration of measuring devices. Organizations need to be careful when selecting a laboratory. There are accredited and non-accredited labs. Non-accredited labs may cost less and save you money in the short-run, however, choosing a non-accredited laboratory may have negative impacts on your business, resulting in a greater loss of money. All calibration must be properly documented.