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The Calibration Control Kit HandbookChapter 15 of 22

Measures that matter

MeasureWhy it mattersWatch out for
Share of instruments in use that are in dateShows the recall worksOverdue instruments relabeled 'reference only' to keep the number up
Out-of-tolerance results per quarterShows whether intervals and handling suit the conditionsA falling count because as-found data stopped being reported
Days from finding to a closed assessmentShows the out-of-tolerance path worksAssessments closed with 'no impact' and no trace
Days from finding to customer notification, where neededWhat the customer feelsWaiting for the full assessment before telling anyone
Key characteristics with an acceptable or conditional studySeparates calibrated from capableStudies run on ten parts in a row to look good
Minutes to complete a trace testShows the records link upTesting only the instrument you know is well recorded

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A management aid, not certification or a registrar audit. Using it does not by itself show conformity to AS9100D or any other standard, and your customers' requirements may add to it.

Clause numbers refer to AS9100D (SAE AS9100 Rev D) unless another document is named. The standards' text is not reproduced here: use your own licensed copy.

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