{
  "url": "https://openlegislation.uk/eu-regulation-2017-654/annex-VII/division-2/division-2.4/division-2.4.2/division-2.4.2.2",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-654/annex-VII/division-2/division-2.4/division-2.4.2/division-2.4.2.2.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/VII/division/2/division/2.4/division/2.4.2/division/2.4.2.2",
  "kind": "division",
  "number": "2.4.2.2",
  "heading": "Discrete-mode NRSC",
  "text": "The particulate specific emission e PM [g/kWh] shall be calculated by means of equations (7-66) or (7-67):\n(a) For the single-filter method\ne PM = q m PM ∑ i = 1 N mode P i × WF i\n(7-66)\nwhere:\nP i engine power for the mode i [kW] calculated by adding to the measured power P meas [kW] the power required to drive auxiliaries P AUX [kW] determined in accordance with equation (6-8) of Annex VI ( P i = P meas + P AUX )\nWFi weighting factor for the mode i [-]\nqm PM particulate mass flow rate [g/h]\nN mode number of modes in applicable discrete-mode NRSC\n(b) For the multiple-filter method\ne PM = ∑ i = 1 N mode q m PM i × WF i ∑ i = 1 N mode P i × WF i\n(7-67)\nWhere:\nP i engine power for the mode i [kW] calculated by adding to the measured power P meas [kW] the power required to drive auxiliaries P AUX [kW] determined in accordance with equation (6-8) of Annex VI ( P i = P meas + P AUX )\nWFi weighting factor for the mode i [-]\nqm PM i particulate mass flow rate at mode i [g/h]\nN mode number of modes in applicable discrete-mode NRSC\nFor the single-filter method, the effective weighting factor, WF e i , for each mode shall be calculated by means of equation (7-68):\nWF e i = m sep i × q m edf – m sep × q m edf i –\n(7-68)\nWhere:\nm sep i mass of the diluted exhaust gas sample passed through the particulate sampling filters at mode i [kg]\nq m edf – average equivalent diluted exhaust gas mass flow rate [kg/s]\nqm edf i equivalent diluted exhaust gas mass flow rate at mode i [kg/s]\nm sep mass of the diluted exhaust gas sample passed through the particulate sampling filters [kg]\nThe value of the effective weighting factors shall be within 0,005 (absolute value) of the weighting factors listed in Appendix 1 of Annex XVII.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Delegated Regulation (EU) 2018/989 of 18 May 2018 amending and correcting Delegated Regulation (EU) 2017/654 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 (Text with EEA relevance)."
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Inserted by Commission Delegated Regulation (EU) 2018/989 of 18 May 2018 amending and correcting Delegated Regulation (EU) 2017/654 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 (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2017/654/annex/VII/division/2/division/2.4/division/2.4.2/division/2.4.2.2",
    "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."
}