The pass criterion for primary biodegradability shall be a level of at least 80 %, as measured according to the test methods below.
Regulation (EC) No 648/2004 of the European Parliament and of the CouncilDangos y teitl llawn
Regulation (EC) No 648/2004 of the European Parliament and of the Council of 31 March 2004 on detergents (Text with EEA relevance)