{
  "url": "https://openlegislation.uk/eu-regulation-2004-648/annex-VIII/division-4/division-4.1/division-4.1.1",
  "json_url": "https://openlegislation.uk/eu-regulation-2004-648/annex-VIII/division-4/division-4.1/division-4.1.1.json",
  "legislation": "eur/2004/648",
  "legislation_title": "Regulation (EC) No 648/2004 of the European Parliament and of the Council of 31 March 2004 on detergents (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2004-648",
  "path": "annex/VIII/division/4/division/4.1/division/4.1.1",
  "kind": "division",
  "number": "4.1.1",
  "heading": "Treatment of samples",
  "text": "The treatment of anionic surface-active agents and formulated detergents prior to the determination of primary biodegradability in the confirmatory test is:\nProducts\nTreatment\nAnionic surfactants\nNone\nFormulated detergents\nAlcoholic extraction followed by separation of the anionic surfactants by ion exchange\nThe purpose of the alcoholic extraction is to eliminate the insoluble and inorganic ingredients of the commercial product, which in some circumstances might upset the biodegradability test.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2004/648/annex/VIII/division/4/division/4.1/division/4.1.1",
    "retrieved_at": "2026-11-01T14:55:38.850310+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}