# Commission Regulation (EC) No 692/2008 of 18 July 2008 implementing and amending 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 (Text with EEA relevance), Division 1.1.3

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

For the type-approval of a mono- fuel gas vehicle and bi-fuel gas vehicles operating in gas mode, fuelled by LPG or NG/biomethane, as a member of the family, a type 1 test shall be performed with one gas reference fuel. This reference fuel may be either of the gas reference fuels. The vehicle is considered to comply if the following requirements are met:
(a) the vehicle complies with the definition of a family member as defined in section 1.1.1.3;
(b) if the test fuel is the reference fuel A for LPG or G20 for NG/Biomethane, the emission result for each pollutant shall be multiplied by the relevant factor ‘r’ calculated in section 1.1.2.4 if r > 1; if r < 1, no correction is needed;
(c) if the test fuel is the reference fuel B for LPG or G25 for NG/Biomethane, the emission result for each pollutant shall be divided by the relevant factor ‘r’ calculated in section 1.1.2.4 if r < 1; if r > 1, no correction is needed;
(d) on the manufacturer’s request the type 1 test may be performed on both reference fuels, so that no correction is needed;
(e) the vehicle shall comply with the emission limits valid for the relevant category for both measured and calculated emissions;
(f) if repeated tests are made on the same engine the results on reference fuel G20, or A, and those on reference fuel G25, or B, shall first be averaged; the ‘r’ factor shall then be calculated from these averaged results;
(g) during the type 1 test the vehicle shall only use petrol for a maximum of 60 seconds when operating in gas mode.

---
Source: https://www.legislation.gov.uk/eur/2008/692/annex/I/division/1/division/1.1/division/1.1.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2008-692/annex-I/division-1/division-1.1/division-1.1.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.