{
  "url": "https://openlegislation.uk/eu-regulation-2008-1272/annex-I/division-3/division-3.2/division-3.2.3/division-3.2.3.3/division-3.2.3.3.2",
  "json_url": "https://openlegislation.uk/eu-regulation-2008-1272/annex-I/division-3/division-3.2/division-3.2.3/division-3.2.3.3/division-3.2.3.3.2.json",
  "legislation": "eur/2008/1272",
  "legislation_title": "Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2008-1272",
  "path": "annex/I/division/3/division/3.2/division/3.2.3/division/3.2.3.3/division/3.2.3.3.2",
  "kind": "division",
  "number": "3.2.3.3.2",
  "heading": null,
  "text": "In general, the approach to classification of mixtures as corrosive or irritant to skin when data are available on the ingredients, but not on the mixture as a whole, is based on the theory of additivity, such that each skin corrosive or skin irritant ingredient contributes to the overall skin corrosive or skin irritant properties of the mixture in proportion to its potency and concentration. A weighting factor of 10 is used for skin corrosive ingredients when they are present at a concentration below the generic concentration limit for classification with Category 1, but are at a concentration that will contribute to the classification of the mixture as skin irritant. The mixture is classified as corrosive or irritant to skin when the sum of the concentrations of such ingredients exceeds a concentration limit.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Regulation (EU) 2016/918 of 19 May 2016 amending, for the purposes of its adaptation to technical and scientific progress, Regulation (EC) No 1272/2008 of the European Parliament and of the Council on classification, labelling and packaging of substances and mixtures (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2008/1272/annex/I/division/3/division/3.2/division/3.2.3/division/3.2.3.3/division/3.2.3.3.2",
    "retrieved_at": "2026-11-01T14:51:47.470832+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."
}