10003 IUPAC Gold Book - examination trueness 10.1351/goldbook.10003 10003 current 1 Fraction of examined values identical to one or more reference nominal property values among all the examined values provided. Each examined value is either equivalent, or non-equivalent, to the reference nominal property value. The examination trueness, in contrast to measurement trueness, is a quantity, and is complementary to examination uncertainty. The reference nominal property value is "B". The nominal property value set of all possible values is {A, B}. For nine of 10 examinations the examined value is "B". The examination trueness is therefore 0.9 (\(\pu{90\%}\)). examination uncertainty https://goldbook.iupac.org//terms/view/10004 examinations https://goldbook.iupac.org//terms/view/09984 examined values https://goldbook.iupac.org//terms/view/10000 nominal property value set https://goldbook.iupac.org//terms/view/09997 reference nominal property values https://goldbook.iupac.org//terms/view/09998 PAC, 2018, 90, 913. 'Vocabulary on nominal property, examination, and related concepts for clinical laboratory sciences (IFCC-IUPAC Recommendations 2017)' on page 923 (https://doi.org/10.1515/pac-2011-0613) https://goldbook.iupac.org/terms/view/10003/html https://goldbook.iupac.org/terms/view/10003/json https://goldbook.iupac.org/terms/view/10003/plain Citation: 'examination trueness' 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.10003 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-05-06T23:43:29+00:00