working examination standard

https://doi.org/10.1351/goldbook.10029

Examination standard that is used routinely to calibrate or verify examining systems.

Note: A working examination standard is usually calibrated with respect to a reference examination standard.

Source:
PAC, 2018, 90, 913. 'Vocabulary on nominal property, examination, and related concepts for clinical laboratory sciences (IFCC-IUPAC Recommendations 2017)' on page 931 (https://doi.org/10.1515/pac-2011-0613)