ISO/TR 21074:2016

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ISO/TR 21074:2016 is a technical report that explains how to measure the repeatability and reproducibility of precision tests. It uses the chemical analysis method for standardization work. 

ISO/TR 21074:2016 describes how to determine the repeatability and reproducibility of precision tests performed within standardization work using the chemical analysis method. Specifically, this document explains the procedure for calculating precision, using precision test data of ISO 5725‑3:1994, Table D.