# Commission Implementing Regulation (EU) 2020/683 of 15 April 2020 implementing Regulation (EU) 2018/858 of the European Parliament and of the Council with regards to the administrative requirements for the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles, Division 3.2.17.8.1.1: Fuel composition:

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

methane (CH4):
basis: ……. % mole
min. …. % mole
max. ….. % mole
ethane (C2H6):
basis: ……. % mole
min. …. % mole
max. ….. % mole
propane (C3H8):
basis: ……. % mole
min. …. % mole
max. ….. % mole
butane (C4H10):
basis: ……. % mole
min. …. % mole
max. ….. % mole
C5/C5+:
basis: ……. % mole
min. …. % mole
max. ….. % mole
oxygen (O2):
basis: ……. % mole
min. …. % mole
max. ….. % mole
inert (N2, He, etc.):
basis: ……. % mole
min. …. % mole
max. ….. % mole

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Source: https://www.legislation.gov.uk/eur/2020/683/annex/I/division/2/division/3/division/3.2.17.8.1.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2020-683/annex-I/division-2/division-3/division-3.2.17.8.1.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.