Les sociétés industrielles étalonnent, mais pourquoi faire?
Société Delta Mu
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The calibration certificate is often not very operational and frequently used only for audits. Can it be different? Can a calibration certificate be used by the manufacturer to improve the quality of measurement and production? The FD X 07-012 provides an exhaustive list of the elements which need to be in the certificate: all the factors that impact the uncertainty of the measurement result have to appear. The central element in this document is the measurement result. The industrials have to verify, on the certificate, the connection chain with the standards measurement, used for the calibration. What counts for the industrialist is the conformity of the measuring instrument. To do so, they need to inspect the measurement results. Nevertheless, the interpretation of the last calibration certificate and the conformity of this operation is not enough. The other results have information which is a shame to miss. In fact, the importance of the measurement standards is to be stable in time. The study of the last calibration result can be weighted in function of the other calibrations results. Finally, the calibration is limited. It cannot certify the quality of the measurement process. In fact, the uncertainty of the measurement result is linked to all the factors influencing the measurement process. The periodical surveillances directly on the measurement process is efficient and enables verification. It can also be an indicator to your calibration intervals.
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