Material subjected to the procedures necessary to show its fitness for intended use (see
fitness for purpose).
Note:
A candidate reference material for a given property may already be a reference material for other properties.
Source:
PAC, 2021, 93, 997. 'Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)' on page 1021 (https://doi.org/10.1515/pac-2019-0819)