{
  "url": "https://openlegislation.uk/eu-regulation-2017-654/annex-VI/division-9/division-9.4/division-9.4.10",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-654/annex-VI/division-9/division-9.4/division-9.4.10.json",
  "legislation": "eur/2017/654",
  "legislation_title": "Commission Delegated Regulation (EU) 2017/654 of 19 December 2016 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to technical and general requirements relating to emission limits and type-approval for internal combustion engines for non-road mobile machinery",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-654",
  "path": "annex/VI/division/9/division/9.4/division/9.4.10",
  "kind": "division",
  "number": "9.4.10",
  "heading": "Air-to-fuel ratio measurements",
  "text": "A Zirconia (ZrO2) analyser may be used to measure air-to-fuel ratio in raw exhaust gas for continuous sampling. O2 measurements with intake air or fuel flow measurements may be used to calculate exhaust gas flow rate in accordance with Annex VII.",
  "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/2017/654/annex/VI/division/9/division/9.4/division/9.4.10",
    "retrieved_at": "2026-11-01T14:45:01.864924+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."
}