# 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, Division 2.4.1.2: Discrete-mode NRSC

Extent: E+W+S+N.I.

The specific emissions e gas [g/kWh] are calculated by means of equation (7-64):
e gas = ∑ i = 1 N mode q m gas i × WF i ∑ i = 1 N mode P i × WF i
(7-64)
where:
qm gas, i mean emission mass flow rate for the mode i [g/h]
P 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 )
WFi weighting factor for the mode i [-]
N mode number of modes in applicable discrete-mode NRSC

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Source: https://www.legislation.gov.uk/eur/2017/654/annex/VII/division/2/division/2.4/division/2.4.1/division/2.4.1.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-VII/division-2/division-2.4/division-2.4.1/division-2.4.1.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.