{
  "url": "https://openlegislation.uk/eu-regulation-2004-648/annex-VIII/division-3/division-3.4",
  "json_url": "https://openlegislation.uk/eu-regulation-2004-648/annex-VIII/division-3/division-3.4.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/3/division/3.4",
  "kind": "division",
  "number": "3.4",
  "heading": "Calculation of results",
  "text": "Every non-ionic surfactant has its own factor, depending on its composition, particularly on the length of the alkene oxide chain. The concentration of non-ionic surfactant is expressed in relation to a standard substance — a nonyl phenol with ten ethylene oxide units (NP 10) — for which the conversion factor is 0,054.\nUsing this factor the amount of surfactant present in the sample is found expressed as mg of NP 10 equivalent, as follows:\n(b — c) xfx 0,054 = mg non-ionic surfactant as NP 10\nwhere:\nbvolume of ‘carbate solution’ used by the sample (ml),\ncvolume of ‘carbate solution’ used by the blank (ml),\nffactor of the ‘carbate solution’.",
  "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/3/division/3.4",
    "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."
}