This International Standard provides practical numerical definitions for the repeatability r and the reproducibility R of the results of a standard test method.
It discusses the implications of these definitions, and presents some practical rules for the interpretation of r and R.
It also describes the organization and analysis of interlaboratory experiments for the numerical determination of r and R.
DS/ISO 5725:1982 history
1982DS/ISO 5725:1982 Precision of test methods. Determination of repeatability and reproducibility by interlaboratory tests