GRSG-113-06
Proposal for a corrigendum to Revision 3 of UN Regulation No. 110 (ISO and NGV)
Proposal for a corrigendum to Revision 3 of UN Regulation No. 110
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.
GRSG-113-06
Proposal for a corrigendum to Revision 3 of UN Regulation No. 110 (ISO and NGV)
Proposal for a corrigendum to Revision 3 of UN Regulation No. 110
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.
GRSG-113-20
Proposal for amendments to UN Regulation No. 110 - Periodic requalification (OICA)
Proposal for amendments to UN Regulation No. 110 - Periodic requalification
Proposal to improve provisions for the visual inspection of CNG cylinders, LNG tanks, and their accessories. Germany has proposed (document GRSG-112-33) the prohibition of components or parts of protective housing which must be disassembled during inspection. Italy has proposed (document GRSG-112-28) that visual inspection of cylinders Include access inside any protective covers of the cylinders. Based upon field experience, OICA believes that corrosion damage between support straps, brackets, and pads and the cylinder can be readily identified during visual inspection. Such corrosion requires cylinder replacement. Therefore, OICA proposes clarifications to inspection procedures to address the German and Italian concerns.
GRSG-113-24
Proposal for amendments to Regulation No. 110 - CNG accumulator (Netherlands)
Proposal for amendments to Regulation No. 110 - CNG accumulator
Proposal for further discussion concerning technical advances in the use of CNG accumulators as an intermediate technology for promoting high, stable pressure in CNG engine injection systems. The CNG accumulator is used to stabilize the gas pressure and to allow engine operation whenever the LNG supply system is not able to deliver fuel. This proposal would define requirements to enable the certification of these components.
GRSG-113-25
Proposal for amendments to Regulation No. 110 - CNG compressor (Netherlands)
Proposal for amendments to Regulation No. 110 - CNG compressor
Proposal for discussion to enable the certification of CNG compressor components. Due to density and temperature constraints, LNG fuel systems require technologies to warm the LNG fuel to reach temperatures and pressures suitable for the engine. In some configurations, this involves the use of CNG compressors. Therefore, this proposal seeks to enable use of this technology through establishment of requirements to ensure safety.
GRSG-113-26
Proposal for amendments to Regulation No. 110 - Annex 5 references (Netherlands)
Proposal for amendments to Regulation No. 110 - Annex 5 references
Proposal to clarify the test procedure to be applied in assessing compliance with the requirement for “compatibility with heat exchange fluids of non-metallic parts” Annex 5Q is part of UN Regulation No. 110. In Annex 4D, the wording “Compatibility with heat exchange fluids” is used but there is no reference to the applicable tests. The proposal clarifies that the “LNG heat exchanger – vaporizer” falls within Annex 5Q. The proposal correspondingly clarifies the general overview Figure 1-2, with all tests from Annex 5, and Table 5.1 in Annex 5.
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/2017/17
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/2017/31
Proposal for amendments to Regulation No. 110 (ISO)
Proposal for amendments to Regulation No. 110
Proposal to harmonize the requirements on Compressed Natural Gas (CNG) and/or Liquefied Natural Gas (LNG) vehicles of UN Regulation No. 110 with those of the international standard ISO 11439:2013.
WP.29/2017/134
Proposal for a new UN Rule [No. 3] on Periodical Technical Inspections of motor vehicles using natural gas in their propulsion system
Proposal for a new UN Rule [No. 3] on Periodical Technical Inspections of motor vehicles using natural gas in their propulsion system
Proposal for a new UN Rule [No. 3] on Periodical Technical Inspections of motor vehicles using Compressed Natural Gas (CNG) and/or Liquefied Natural Gas (LNG) in their propulsion system