# Commission Directive 2004/73/EC of 29 April 2004 adapting to technical progress for the twenty-ninth time Council Directive 67/548/EEC on the approximation of the laws, regulations and administrative provisions relating to the classification, packaging and labelling of dangerous substances (Text with EEA relevance), Division 1.5: VALIDITY OF THE TEST

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

Evaluations of test results with agrochemicals are based on relatively small differences (i.e. average value ±25%) between nitrate concentrations in control and treated soil samples, so large variations in the controls can lead to false results. Therefore, the variation between replicate control samples should be less than ±15%.

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Source: https://www.legislation.gov.uk/eudr/2004/73/annex/2I/division/C.21/division/1/division/1.5 (the official version)
Page: https://openlegislation.uk/eu-directive-2004-73/annex-2I/division-C.21/division-1/division-1.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.