Examination procedure accepted as providing examination results fit for their intended use in assessing examination trueness of examined values obtained from other examination procedures for nominal properties of the same kind-of-nominal-property, in examination calibration, or in characterizing nominal reference materials.
Examples: - A reference examination procedure provided by a perfume firm to identify smells.
- The official examination procedure for car technical control (involving both measurements and nominal examination).
Source:
PAC, 2018, 90, 913. 'Vocabulary on nominal property, examination, and related concepts for clinical laboratory sciences (IFCC-IUPAC Recommendations 2017)' on page 929 (https://doi.org/10.1515/pac-2011-0613)