proficiency test item

synonym: PT item
https://doi.org/10.1351/goldbook.08100
Sample, product, artefact, reference material, piece of equipment, measurement standard, data set, or other information used for proficiency testing.
Source:
PAC, 2021, 93, 997. (Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)) on page 1033 [Terms] [Paper]
Citation: 'proficiency test item' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08100 RIS BibTex EndNote
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