# 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 2.4.2.2: Precision of quantitative methods

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

In the case of repeated analysis of a sample carried out under within-laboratory reproducibility conditions, the intra-laboratory coefficient of variation (CV) of the mean shall not exceed the following values:
Table 8
CVs for quantitative methods at a range of element mass fractions
Mass fraction
CV (%)
≥ 10 μg/kg to 100 μg/kg
20
> 100 μg/kg to 1 000 μg/kg
15
≥ 1 000 μg/kg
10

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Source: https://www.legislation.gov.uk/eudn/2002/657/annex/chapter/2.4/division/2.4.2.2 (the official version)
Page: https://openlegislation.uk/eu-decision-2002-657/annex/chapter-2.4/division-2.4.2.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.