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Article | REF: P105 V1

Assessment of uncertainties in analytical results

Authors: Michèle DÉSENFANT, Marc PRIEL, Cédric RIVIER

Publication date: December 10, 2005, Review date: July 1, 2018 | Lire en français

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    2. Measurement uncertainty as a decision-making criterion

    Many analysis results are used to make decisions. We want to check whether two processes are equivalent, or whether one is better than the other. We may be interested in declaring the conformity of a product to a regulation, and this declaration will be based on one or more analytical results. In both cases, we examine how uncertainty plays a part in the decision-making process.

    2.1 Comparison of two measurement results

    There are many situations in which we have to compare two results. Are they different, or is the difference between the numerical values merely the result of chance, since both are attributable to the same quantity? Figure

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