CEN/TR 17421:2019

Animal feeding stuffs: Methods of sampling and analysis - Recommendations for the organization and evaluation of collaborative studies for multi-analyte methods of analysis CEN/TR 17421:2019

Publication date:   Dec 16, 2019

General information

60.60 Standard published   Sep 25, 2019


CEN/TC 327 Animal feeding stuffs - Methods of sampling and analysis

Technical Report

65.120   Animal feeding stuffs



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This document gives guidance to those involved in designing, executing and evaluating interlaboratory comparison studies for multi-analyte methods of analysis, developed by CEN/TC 327 “Animal feeding stuffs: Methods of sampling and analysis” and its working groups.
For the validation of multi-analyte methods their particularities must be considered which might necessitate deviations from the prescribed validation protocols. This study provides information whether the method is fit for its purpose and which performance can be expected in practical work while at the same time keeping the necessary effort for the study organizer and the participating laboratories minimal.
Next to the abovementioned aspects regarding interlaboratory comparison studies, this document also gives guidance on the preceding steps, viz. in-house validation and preparation of the method protocol. Guidance is also given on the transferability of the method protocol and the familiarization with the method protocol through a training study, elements that – depending on the specific method – could be included in the design of the study.

Related legislation

Legislation related to this standard


Regulation (EC) No 882/2004 of the European Parliament and of the Council of 29 April 2004 onofficial controls performed to ensure the verification of compliance with feed and food law, animal health and animal welfare rules

Life cycle


CEN/TR 17421:2019
60.60 Standard published
Sep 25, 2019