{
  "url": "https://openlegislation.uk/pressure-equipment-safety-regulations-2016/schedule-3/paragraph-3",
  "json_url": "https://openlegislation.uk/pressure-equipment-safety-regulations-2016/schedule-3/paragraph-3.json",
  "legislation": "uksi/2016/1105",
  "legislation_title": "The Pressure Equipment (Safety) Regulations 2016",
  "legislation_url": "https://openlegislation.uk/pressure-equipment-safety-regulations-2016",
  "path": "schedule/3/paragraph/3",
  "kind": "paragraph",
  "number": "3",
  "heading": null,
  "text": "For the purposes of the classification referred to in paragraph (1), fluids shall be divided into the following two groups—\n(1) a fluid in Group 1 means—\n(a) a substance or mixture—\n(i) as defined in Article 2(7) and (8) respectively of the CLP Regulation; and\n(ii) that is classified as hazardous in accordance with the following physical or health hazard classes laid down in Parts 2 and 3 of Annex I to the CLP Regulation—\n(aa) unstable explosives or explosives of Divisions 1.1, 1.2, 1.3, 1.4 and 1.5;\n(bb) flammable gases, categories 1 and 2;\n(cc) oxidising gases, category 1;\n(dd) flammable liquids, categories 1 and 2;\n(ee) flammable liquids, category 3 where the maximum allowable temperature is above the flashpoint;\n(ff) flammable solids, categories 1 and 2;\n(gg) self-reactive substances and mixtures, types A to F;\n(hh) pyrophoric liquids category 1;\n(ii) pyrophoric solids, category 1;\n(jj) substances and mixtures which in contact with water emit flammable gases, categories 1, 2 and 3;\n(kk) oxidising liquids, categories 1, 2 and 3;\n(ll) oxidising solids, categories 1, 2 and 3;\n(mm) organic peroxides, types A to F;\n(nn) acute oral toxicity, categories 1 and 2;\n(oo) acute dermal toxicity, categories 1 and 2;\n(pp) acute inhalation toxicity, categories 1, 2 and 3;\n(qq) specific target organ toxicity – single exposure, category 1; or\n(b) a substance or mixture contained in pressure equipment with a maximum allowable temperature TS which exceeds the flashpoint of the fluid;\n(2) a fluid in Group 2 means any substance or mixture which is not a substance or mixture within the definition of a fluid in group 1.",
  "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/uksi/2016/1105/schedule/3/paragraph/3",
    "retrieved_at": "2026-10-28T23:18:08.933092+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."
}