Title: decision rule in conformity assessment
Long Title: IUPAC Gold Book - decision rule in conformity assessment
DOI: 10.1351/goldbook.08072
Status: current

Definition
Documented rule that describes how measurement uncertainty will be accounted for with regard to accepting or rejecting an item, given a specified requirement and a measured quantity value.


Note
Decision rules in conformity assessment give a prescription for the acceptance or rejection of an item based on the measured quantity value and the associated measurement uncertainty and limit(s) expressed or implied by specified requirements, taking into account the acceptable level of the probability of making a wrong decision. On the basis of the decision rules, an "acceptance interval" and "rejection interval(s)" are determined, such that if the measured quantity value lies in the acceptance interval, the item is declared as conforming and if in the rejection interval, it is declared as non-conforming.

Related Terms
- acceptance interval: https://goldbook.iupac.org//terms/view/08052
- conformity assessment: https://goldbook.iupac.org//terms/view/08067
- guard band: https://goldbook.iupac.org//terms/view/08076
- rejection interval(s): https://goldbook.iupac.org//terms/view/08121
- requirement: https://goldbook.iupac.org//terms/view/08122
- specified requirements: https://goldbook.iupac.org//terms/view/08129

Source
- PAC, 2021, 93, 997. 'Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)' on page 1024 (https://doi.org/10.1515/pac-2019-0819)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/08072/html
- json: https://goldbook.iupac.org/terms/view/08072/json
- xml: https://goldbook.iupac.org/terms/view/08072/xml

Citation: Citation: 'decision rule in conformity assessment' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08072
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Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.
Accessed: 2025-09-11T01:37:52+00:00