Metrological Traceability of Measurement Results in Chemistry: Concepts and Implementation
This IUPAC study aims at formulating recommendations concerning the metrological traceability of a measurement result in chemistry. It is intended to provide the chemical measurement community with a consistent view of the creation, meaning, and role of metrological traceability and its underpinning concepts. No distinction is made between measurement results obtained in "high metrology" and in the "field". A description is given of the calibration hierarchies needed in different circumstances to arrive at metrological traceability along a metrological traceability chain. Flow charts of generic calibration hierarchies are presented as well as a variety of examples. The establishment, assessment, and reporting of metrological traceability are discussed, including the needed metrological institutional framework and the role of interlaboratory comparisons. Recommendations are made about the essential steps in planning and performing a measurement, and reporting a measurement result.
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