# Regulation (EC) No 648/2004 of the European Parliament and of the Council of 31 March 2004 on detergents (Text with EEA relevance), Division 5.1.3

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

After homogenising, the concentration of anionic and non-ionic surfactants in the detergent is determined according to the MBAS and BiAS analytical procedure. The soap content is determined by a suitable analytical method.
This analysis of the product is necessary to calculate the quantities required preparing fractions for the biodegradability tests.
Quantitative extraction is not necessary; however, at least 80 % of the non-ionic surfactants should be extracted. Usually, 90 % or more is obtained.
Principle

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Source: https://www.legislation.gov.uk/eur/2004/648/annex/VIII/division/5/division/5.1/division/5.1.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2004-648/annex-VIII/division-5/division-5.1/division-5.1.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.