# Commission Regulation (EU) 2017/2400 of 12 December 2017 implementing Regulation (EC) No 595/2009 of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles and amending Directive 2007/46/EC of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 (Text with EEA relevance), Division 5.3.3.1: Corrected specific fuel consumption figures over WHSC

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

The calculated specific fuel consumption over the WHSC, SFCWHSC, determined in accordance with paragraph 5.3.3 shall be adjusted to a corrected value, SFCWHSC,corr, in order to account for the difference between the NCV of the fuel used during testing and the standard NCV for the respective engine fuel technology in accordance with the following equation:
SFC WHSC,corr = SFC WHSC NCV meas NCV std where:
SFCWHSC,corr Corrected specific fuel consumption over WHSC [g/kWh]
SFCWHSC Specific fuel consumption over WHSC [g/kWh]
NCVmeas NCV of the fuel used during testing determined in accordance with paragraph 3.2 [MJ/kg]
NCVstd Standard NCV in accordance with Table 4 [MJ/kg]
Table 4
Standard net calorific values of fuel types
Fuel type / engine type
Reference fuel type
Standard NCV [MJ/kg]
Diesel / CI
B7
42,7
Ethanol / CI
ED95
25,7
Petrol / PI
E10
41,5
Ethanol / PI
E85
29,1
LPG / PI
LPG Fuel B
46,0
Natural gas / PI
G 25 or G R
45,1

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Source: https://www.legislation.gov.uk/eur/2017/2400/annex/V/division/5/division/5.3/division/5.3.3/division/5.3.3.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-2400/annex-V/division-5/division-5.3/division-5.3.3/division-5.3.3.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.