Stumbling Upon a Best Practice

Figure 5 of ILAC G8:09/2019 Guidelines on Decision Rules and Statements of Conformity

by Christopher Grachanen

Once in a while, during your normal workday, you stumble across a best practice that a client, vendor, supplier or competition has incorporated which really stands out as a superior practice worthy of replicating. Such an occurrence happened while I was reviewing a supplier’s calibration certificates.

One of the most confusing aspects of calibration certificates for customers has to do with compliance statements and associated decision rules used in reporting calibration conformity test results. Decision rules describe how measurement uncertainty will be accounted for when stating whether a unit or system complies with specified requirements, i.e. limits.

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