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How Often Should Calibrators Be Calibrated?
November 25, 2007
•White Paper: How Often Should Calibrators Be Calibrated?
For instance, a general rule for Beamex's MC5, is to start with a 1-year calibration period as the MC5 has a 1-year uncertainty specified. The calibration period can be changed in the future as you get cumulated stability history, which is compared with uncertainty requirements. In any case, there are many issues to be considered when deciding the calibration period of a calibrator, or any measuring equipment. This article discusses some of the things to be considered when specifying the calibration period and provides some general guidelines. The same guidelines that apply to a calibrator also apply to other measuring equipment in the traceability chain. These guidelines can even be used for process instrumentation.
While maintaining a traceable calibration system, an important aspect is to determine how often the calibration equipment should be recalibrated. International standards (such as ISO9000, ISO10012, ISO17025, CFRs by FDA, GMP, etc.) require the creation of documented calibration programs. Among other things, this means that measuring equipment should be calibrated traceably at suitable periods and that the basis for calibration periods should be evaluated and documented.
When specifying a suitable calibration period for any measuring equipment, there are several things to be considered.
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