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Date Reference Description Status
28 Mar 2022 GRSG-123-24
UN R110: Proposal for Supplement 5 to 04 series of amendment
Working Party Informal Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. Proposal to introduce a change of definition of working pressure for LNG, and introduce a value for that pressure in Annex 3B. Proposal also applicable for Supplement 2 to the 05 series of Amendments
25 Aug 2022 GRSG/2022/23
UN R110: Proposal for Supplement 1 to the 05 of Amendments
Working Party Working Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. Proposal defines the working pressure for an LNG tank to be the primary relief valve setting (paragraph 4.4.), without stating a minimum value of the said relief valve. If a vehicle has an on-board tank with a primary relief valve that opens at a lower pressure than that at which the filling station is set to stop, the primary relief valve will open during refueling and this is an obvious safety risk.
12 Oct 2022 GRSG-124-32
UN R110: Proposal for Supplement 4 to the 04 Series of Amendments
Working Party Informal Compressed and Liquefied Natural Gas System Components CNG/LNG System Components Uniform Provisions Concerning the Approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system. Proposal e to introduce a missing transitional provision to 04 series to cover the acceptance of type approvals according to the preceding series when not affected by the provisions of the new series.