# Commission Regulation (EC) No 401/2006 of 23 February 2006 laying down the methods of sampling and analysis for the official control of the levels of mycotoxins in foodstuffs (Text with EEA relevance), Division 4.3.2.6: Verification of methods already validated through collaborative trials

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

For screening methods that have already been successfully validated through a collaborative laboratory trial, the method performance shall be verified. For this a minimum of 6 negative control and 6 positive control (at STC) samples shall be analysed. The positive control samples shall all be above the cut-off value. In case this criterion is not met, the laboratory has to perform a root-cause analysis to identify why it cannot meet the specification as obtained in the collaborative trial. Only after taking corrective action it shall re-verify the method performance in its laboratory. In case the laboratory is not capable to verify the results from the collaborative trial, it will need to establish its own cut-off in a complete single laboratory validation.

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Source: https://www.legislation.gov.uk/eur/2006/401/annex/II/division/4/division/4.3/division/4.3.2/division/4.3.2.6 (the official version)
Page: https://openlegislation.uk/eu-regulation-2006-401/annex-II/division-4/division-4.3/division-4.3.2/division-4.3.2.6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.