Working Party on General Safety | Session 114 | 9-13
Apr 2018
Geneva
The deadline for the submission of official working documents for this session is 12 January 2018. At this session, GRSG is expected to consider forming a new informal working group to develop fire risk reduction requirements for M2/M3 vehicles.
Amendments to gas-fuelled vehicle regulations: Regulation No. 110 (CNG and LNG vehicles)
Documentation
GRSG-114-03
UN R110: Proposal for amendments (Netherlands)
UN R110: Proposal for amendments
Proposal to introduce requirements for CNG compressor and CNG accumulator components designed to maintain stable pressure in fuel systems. See also documents GRSG-113-24 and 25 from the previous GRSG session.
GRSG-114-06/Rev.1
UN R110: Proposal for amendments to reduce venting via new technologies (Netherlands)
UN R110: Proposal for amendments to reduce venting via new technologies
Proposal to allow the use of a generator fueled by the vehicle gaseous fuel system that provides electricity to run accessories (e.g., overnight power in sleeper cabs, to maintain battery charge during high electrical power use with loading or lifting equipment). This proposal would allow for the use of LNG/CNG from vehicle fuel tanks and thereby reduce the potential need to vent gas into the air in response to pressure buildup due to warming over time by using the gas to power other devices and equipment.
GRSG-114-07
UN R110: Information in support of GRSG/2017/29 (Italy)
UN R110: Information in support of GRSG/2017/29
Italy research on type CNG4 cylinders in support of the proposal to require that covers be removed in cases where ogive protective covers are fitted to a cylinder before conducting the impact damage (drop) test (document GRSG/2017/29).
GRSG-114-08
Report on the 1st meeting of the GRSG Task Force on "Gas-fueled vehicle regulations" (Germany)
Report on the 1st meeting of the GRSG Task Force on "Gas-fueled vehicle regulations"
The target of the meeting was to define essential periodic inspection requirements to be respected when installing gaseous fuel components into a vehicle, and to clarify the material requirements for components inside the LPG tank. The work addressed UN R67 and UN R110. No further meetings are planned at this time.
GRSG-114-10/Rev.1
UN R110: Proposal for the 03 series of amendments (Germany)
UN R110: Proposal for the 03 series of amendments
Proposal developed by the Gas-fueled Vehicle Regulations Task Force to facilitate periodic inspections of gas containers through better visibility. In addition, Germany suggests adding a paragraph to allow a Contracting Party or a regional organization of Contacting Parties like the EU to refuse national or regional type-approval and to refuse first registration of a vehicle type affected by the changes introduced by the 03 series of amendments but not meeting those stipulations. Paragraph 24.22. is an addition to paragraph 22.18. giving more stress to the aspects of national and regional type-approval and of first registration of vehicles.
GRSG-114-26
UN R110: Proposal for amendments with regard to visual inspections (OICA)
UN R110: Proposal for amendments with regard to visual inspections
Proposal to delete the reference to visual inspection under the support straps of the cylinders from the text under consideration. Such inspection would require dismantling of the cylinder installations which would contravene the consensus decision to avoid such exhaustive dismantling.
GRSG-114-27
UN R110: Proposal for amendments concerning gas flow adjuster (OICA)
UN R110: Proposal for amendments concerning gas flow adjuster
Proposal to amend and clarify the need for a gas flow adjuster under UN R110 with regard to the use of carburetors and fuel injectors. A gas flow adjuster is not necessary when an electronic fuel injection system manages the air/fuel mixture and therefore should be removed from paragraph 18.3.1. An adjuster is needed when air/fuel mixture runs via a carburetor and therefore should be added to paragraph 18.3.2.
GRSG/2017/17
Proposal for the 03 series of amendments to Regulation No. 110 (Germany)
Proposal for the 03 series of amendments to Regulation No. 110
Proposal for a new series of amendments to UN Regulation No. 110 to improve the specifications for the installation and inspection of CNG cylinders and of LNG tanks and their accessories. This proposal addresses incidents caused by cylinder corrosion. The proposal aims to reinforce the requirements for adequate cylinder protection and for sufficient access to the cylinder and its accessories to allow regular visual inspection.
GRSG/2017/29
Proposal for amendments to Regulation No. 110 (Italy)
Proposal for amendments to Regulation No. 110
Proposal to require, in instances where ogive protective covers are fitted to a cylinder, that the covers be removed before conducting the impact damage (drop) test.
GRSG/2018/3
UN R110: Proposal for Corrigendum 1 to Revision 3 (LG Europe and ISO)
UN R110: Proposal for Corrigendum 1 to Revision 3
In the absence of complete harmonization with ISO 11439, this proposal recommends that Table 6.4 of UN R110 should be amended by the following for CNG-1 designs:
Delete A.17, A.25, and A.7 since they do not match the tests specified in paragraph 7.5 on Cylinder design qualification tests
Add A.15 and A.6 since they do match the tests specified in paragraph 7.5 on Cylinder design qualification tests
Add A.24 because paragraph 6.9 on Fire protection requires all PRDs on all cylinder types to comply with A.24.