# Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance), Division 6.2.2


For all equations in paragraph 6. of this Sub-Annex:
FCis the fuel consumption of a specific fuel, 1/100 km (or m3 per 100 km in the case of natural gas or kg/100 km in the case of hydrogen);
H/Cis the hydrogen to carbon ratio of a specific fuel CXHYOZ;
O/Cis the oxygen to carbon ratio of a specific fuel CXHYOZ;
MWCis the molar mass of carbon (12,011 g/mol);
MWHis the molar mass of hydrogen (1,008 g/mol);
MWOis the molar mass of oxygen (15,999 g/mol);
ρfuelis the test fuel density, kg/l. For gaseous fuels, fuel density at 15 °C;
HCare the emissions of hydrocarbon, g/km;
COare the emissions of carbon monoxide, g/km;
CO2are the emissions of carbon dioxide, g/km;
H2Oare the emissions of water, g/km;
H2are the emissions of hydrogen, g/km;
p1is the gas pressure in the fuel tank before the applicable test cycle, Pa;
p2is the gas pressure in the fuel tank after the applicable test cycle, Pa;
T1is the gas temperature in the fuel tank before the applicable test cycle, K;
T2is the gas temperature in the fuel tank after the applicable test cycle, K;
Z1is the compressibility factor of the gaseous fuel at p1 and T1;
Z2is the compressibility factor of the gaseous fuel at p2 and T2;
Vis the interior volume of the gaseous fuel tank, m3;
dis the theoretical length of the applicable phase or cycle, km.

---
Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/7/division/division/6./division/6.2./division/6.2.2. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/7/division/division-6./division-6.2./division-6.2.2.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.