kordustäpsus, mis on saadud ühes ja samas laboratooriumis piisavalt pikkade ajavahemike järel eelnevalt kindlaksmääratud tingimustes, mis on seotud meetodi, katsematerjali, operaatorite või keskkonnaga
precision obtained in the same laboratory under stipulated (predetermined) conditions (concerning e.g. method, test materials, operators, environment) over justified long time intervals
Reliability: Measures of the extent that a test method can be performed reproducibly within and between laboratories over time, when performed using the same protocol. It is assessed by calculating intra- and inter-laboratory reproducibility (14).