Animal feeding stuffs: Methods of sampling and analysis. Recommendations for the organization and evaluation of collaborative studies for multi-analyte methods of analysis
This document provides guidance to study organizers involved in designing, executing and evaluating collaborative studies for multi-analyte methods developed by the various working groups of the CEN/TC 327 βAnimal feeding stuffs: Methods of sampling and analysisβ.
The main goal of such studies is to determine the *reproducibility standard deviations* for the analytes investigated in the selected matrices. They are calculated from the repeatability and the between-laboratory standard deviations determined from the study data.
An additional goal may be the determination of the *trueness* (whenever possible).
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