{
  "url": "https://openlegislation.uk/eu-regulation-2008-692/annex-XII/division-2/division-2.3",
  "json_url": "https://openlegislation.uk/eu-regulation-2008-692/annex-XII/division-2/division-2.3.json",
  "legislation": "eur/2008/692",
  "legislation_title": "Commission Regulation (EC) No 692/2008 of 18 July 2008 implementing and amending Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2008-692",
  "path": "annex/XII/division/2/division/2.3",
  "kind": "division",
  "number": "2.3",
  "heading": null,
  "text": "Point 5.2.4 of UNECE Regulation No 101 shall be understood as:\n(1) density: measured on the test fuel according to ISO 3675 or an equivalent method. For petrol, diesel, biodiesel and ethanol (E85 end E75), the density measured at 15 °C will be used; for LPG and natural gas/biomethane a reference density shall be used, as follows:\n0,538 kg/litre for LPG,\n0,654 kg/m 3 for NG (mean value of G20 and G23 reference fuels at 15 °C.)\n(2) hydrogen-carbon-oxygen ratio: the following fixed values shall be used:\nC 1 H 1,89 O 0,016 for petrol (E5),\nC 1 H 1,93 O 0,033 for petrol (E10),\nC 1 H 1,86 O 0,005 for diesel (B5),\nC 1 H 1,86 O 0,007 for diesel (B7),\nC 1 H 2,525 for LPG (liquefied petroleum gas),\nCH 4 for NG (natural gas) and biomethane,\nC 1 H 2,74 O 0,385 for ethanol (E85),\nC 1 H 2,61 O 0,329 for ethanol (E75).",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Regulation (EU) No 136/2014 of 11 February 2014 amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 as regards emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and Commission Regulation (EU) No 582/2011 as regards emissions from heavy duty vehicles (Euro VI) (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2008/692/annex/XII/division/2/division/2.3",
    "retrieved_at": "2026-11-01T14:52:09.943760+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."
}