# Commission Regulation (EC) No 641/2004 of 6 April 2004 on detailed rules for the implementation of Regulation (EC) No 1829/2003 of the European Parliament and of the Council as regards the application for the authorisation of new genetically modified food and feed, the notification of existing products and adventitious or technically unavoidable presence of genetically modified material which has benefited from a favourable risk evaluation (Text with EEA relevance), Division E: Batch characterisation:

Extent: E+W+S+N.I.

the methods used for verification and for certification must:
be applied under metrologically valid conditions,
have been properly technically validated before use,
have precision and accuracy compatible with the target uncertainty;
each set of measurements must:
be traceable to the stated references, and
be accompanied by an uncertainty statement whenever possible;
participating laboratories must:
have the required competence for the execution of the task,
be able to achieve traceability to the required stated references,
be able to estimate its measurement uncertainty,
have in place a sufficient and appropriate quality assurance system.

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Source: https://www.legislation.gov.uk/eur/2004/641/annex/II/division/E (the official version)
Page: https://openlegislation.uk/eu-regulation-2004-641/annex-II/division-E
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.