# Commission Decision of 12 August 2002 implementing Council Directive 96/23/EC concerning the performance of analytical methods and the interpretation of results (notified under document number C(2002) 3044) (Text with EEA relevance) (2002/657/EC), Division 1.23

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

Proficiency study means analysing the same sample allowing laboratories to choose their own methods, provided these methods are used under routine conditions. The study has to be performed according to ISO guide 43-1 (3) and 43-2 (4) and can be used to assess the reproducibility of methods.

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Source: https://www.legislation.gov.uk/eudn/2002/657/annex/part/1/division/1.23 (the official version)
Page: https://openlegislation.uk/eu-decision-2002-657/annex/part-1/division-1.23
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.