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Article | REF: SL1640 V1

Use of reference materials

Author: Patrick REPOSEUR

Publication date: June 10, 2014, Review date: September 24, 2018 | Lire en français

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    1. Need for external recognition

    The main aim of the assessment is to gather factual evidence and provide guarantees on the relevance of measurement results produced by laboratories or inspection bodies, where these have a significant influence on the outcome of the inspection.

    For this guarantee to be accepted, the results of measurements must be comparable, at different times, in different places and with different personnel, within the measurement uncertainties. When it comes to testing or analysis, we aim to use the same method, so that the protocol does not introduce any new uncertainty components.

    The importance of identifying the causes of uncertainty (components) cannot be over-emphasized. Sampling is one of the main causes of uncertainty in analytical chemistry, or in biology. If the analyzed part is not representative of the original "material", it is no longer...

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