GFV-26-09 | Minutes of the 26th GFV informal group session

GRPE/2013/7 | Proposal for Supplement 6 to the 05 series of amendments to Regulation No. 49 Text prepared by the Chair of the Gaseous Fuelled Vehicles informal group–Heavy Duty Dual Fuel task force to introduce modifications to the 05 series of amendments of UN R49 (Euro V) in order to extend the pollutant emission requirements to dual-fuel heavy duty engines and vehicles.

GFV-26-09 | Minutes of the 26th GFV informal group session

GFV-27-04 | Working draft of the proposed new regulation on heavy-duty dual-fuel retrofit systems Draft new Regulation on uniform provisions concerning the approval of specific LPG (liquefied petroleum gases) or NG (compressed natural gas/bio-methane/liquefied natural gas) dual fuel retrofit systems to be installed in heavy duty vehicles, agricultural and forestry tractors and non road mobile machinery equipped with Compression Ignition engines

GFV-26-07 | New heavy-duty dual fuel vehicle retrofit regulation Presentation on the aims of the proposal, to be considered at the June 2013 GRPE session, for a new UN Regulation concerning LPG (liquefied petroleum gases) or NG (compressed natural gas/bio‐methane/liquefied natural gas) dual fuel retrofit systems to be installed in heavy duty diesel applications.

GFV-27-04 | Working draft of the proposed new regulation on heavy-duty dual-fuel retrofit systems Draft new Regulation on uniform provisions concerning the approval of specific LPG (liquefied petroleum gases) or NG (compressed natural gas/bio-methane/liquefied natural gas) dual fuel retrofit systems to be installed in heavy duty vehicles, agricultural and forestry tractors and non road mobile machinery equipped with Compression Ignition engines

GFV-27-03 | Proposal to correct gas ratios formulae in UN Regulation No. 115 Proposal for a draft supplement to UN R115 or for a draft corrigendum to Supplement 5 to the regulation (reference document WP.29/2012/104). The amendment would replace FC_mean with FC_norm and provide an improved definition of the term.

GRPE-66-19 | Proposal for an amendment to UN Regulation No. 115 Proposal from the GFV Informal Group. FC_mean, as defined in paragraphs 6.1.2.4.3.2. (LPG) and 6.2.2.4.3.2. (CNG) of UN Regulation No. 115, is the mean value of the fuel consumptions of all the parent (test) vehicles, whereas the calculation of the gas ratio has to be made individually for each parent vehicle. Therefore, FC_mean has to be replaced by FC_norm as defined in UN R101. This correction would align UN R115 with the corresponding provisions set out in UN R83

GRPE-65-12 | Vehicle Propulsion System Definitions: Explanatory report draft Working document in support of the effort to facilitate uniformity in the use of terms, acronyms and other specialized language in regulations.

GRPE-65-13 | Vehicle Propulsion System Definitions: Overview diagram

GRPE-66-20 | Information supporting LNG vehicle amendments to UN Regulation No. 110 Text from the Informal Group on Gaseous Fuelled Vehicles in order to comply with a request by the GRSG. Amendments proposed by the LNG Task Force on incorporating LNG systems into Regulation 110 were approved by the 104th session of the GRSG (GRSG/2013/7). The German delegate, recognizing that potential methane release -- venting from ‘boil off’ -- is an environmental issue suggested that the issue of holding time for LNG and its venting be brought forward to the GRPE.

GRPE-66-27 | Information on LNG-vehicle "boil-off" issues Information provided to GRPE at the request of GRSG to explain the nature of LNG container venting as a safety precaution responding to LNG boil-off effects on pressure levels.

GRPE-66-05 | Proposal for Supplement 1 to the 01 series of amendments to Regulation No. 110 Text prepared by the Chair of the Task Force on Liquefied Natural Gas (LNG) vehicles (on the basis of document GRSG/2013/7) to introduce type approval provisions for vehicles equipped with LNG propulsion systems. The proposal has been prepared as a new consolidated version (Revision 3) of UN Regulation No. 110.