{
  "url": "https://openlegislation.uk/eu-regulation-2011-582/annex-II/appendix-2",
  "json_url": "https://openlegislation.uk/eu-regulation-2011-582/annex-II/appendix-2.json",
  "legislation": "eur/2011/582",
  "legislation_title": "Commission Regulation (EU) No 582/2011 of 25 May 2011 implementing and amending Regulation (EC) No 595/2009 of the European Parliament and of the Council with respect to emissions from heavy duty vehicles (Euro VI) and amending Annexes I and III to Directive 2007/46/EC of the European Parliament and of the Council (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2011-582",
  "path": "annex/II/appendix/2",
  "kind": "appendix",
  "number": "2",
  "heading": null,
  "text": "Portable measurement equipment\n1.\nGENERAL\nThe gaseous emissions shall be measured according to the procedure set out in Appendix 1. The present Appendix describes the characteristics of the portable measurement equipment that shall be used to perform such tests.\n2.\nMEASURING EQUIPMENT\n2.1.\nGas analysers general specifications\nThe PEMS gas analysers specifications shall meet the requirements set out in Section 9.3.1 of Annex 4B to UN/ECE Regulation No 49.\n2.2.\nGas analysers technology\nThe gases shall be analysed using the technologies specified in paragraph 9.3.2 of Annex 4 to UNECE Regulation No 49.\nThe oxides of nitrogen analyser may also be of the Non-Dispersive Ultra Violet (NDUV) type.\n2.3.\nSampling of gaseous emissions\nThe sampling probes shall meet the requirements set out in paragraphs A.2.1.2 and A.2.1.3 of Appendix 2 to Annex 4 to UNECE Regulation No 49. The sampling line shall be heated to 190 °C (+/– 10 °C).\n2.4.\nOther instruments\nThe measuring instruments shall satisfy the requirements set out in Table 7 and paragraph 9.3.1 of Annex 4 to UNECE Regulation No 49.\n3.\nAUXILIARY EQUIPMENT\n3.1.\nExhaust gas flow meter (EFM) tailpipe connection\nThe installation of the EFM shall not increase the backpressure by more than the value recommended by the engine manufacturer, nor increase the length of the tailpipe by more than 2 m. As for the all the components of the PEMS equipment, the installation of the EFM shall comply with the locally applicable road safety regulations and insurance requirements.\n3.2.\nPEMS location and mounting hardware\nThe PEMS equipment shall be installed as specified in Section 2.4 of Appendix 1.\n3.3.\nElectrical power\nThe PEMS equipment shall be powered using the method described in point 4.6.6 of Annex II.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Regulation (EU) No 133/2014 of 31 January 2014 amending, for the purposes of adapting to technical progress as regards emission limits, Directive 2007/46/EC of the European Parliament and of the Council, Regulation (EC) No 595/2009 of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 (Text with EEA relevance)."
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Substituted by Commission Regulation (EU) 2016/1718 of 20 September 2016 amending Regulation (EU) No 582/2011 with respect to emissions from heavy-duty vehicles as regards the provisions on testing by means of portable emission measurement systems (PEMS) and the procedure for the testing of the durability of replacement pollution control devices (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2011/582/annex/II/appendix/2",
    "retrieved_at": "2026-11-01T14:50:03.864087+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."
}