31. The expert from OICA recalled the discussion at the previous GRSG session on ECE/TRANS/WP.29/GRSG/2015/36 proposing to amend the provisions of UN Regulation No. 67 to allow the installation of autonomous CNG heaters for the heating of the engine. The expert from Germany presented GRSG-110-27 further clarifying the text of paragraph 18.5.1.3.
32. GRSG adopted the proposal as reproduced below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2016 sessions, as draft Supplement 5 to the 01 series of amendments to UN Regulation No. 110.
Paragraph 18.5.1.3., amend to read:
“18.5.1.3. Notwithstanding the provisions of paragraph 18.5.1.2.
(a) the automatic cylinder valve may stay in an open position during commanded stop phases, and
(b) in the case where a fire alarm system is installed in the compartment where a CNG combustion heater is located, the automatic cylinder valve(s) may be opened by an electronic control unit for the purpose of permitting its operation to warm the engine coolant.”
33. Reminding GRSG experts about the purpose of ECE/TRANS/WP.29/GRSG/2016/6, the expert from ISO introduced GRSG-110-05 proposing further amendments to UN Regulation No. 110 aimed at harmonizing the requirements for CNG cylinders with those of standard ISO 11439:2013. GRSG welcomed the work done by ISO. GRSG noted a number of study reservations and the request for a detailed justification of only referencing to ISO standards instead of reproducing the testing provisions. Following the recommendation by WP.29, GRSG underlined the need to have a static referencing of the international standards referred to in the proposal. A number of experts requested to have free access to these standards. The secretariat offered the possibility to make a copy of these standards available on the GRSG website, but protected by a password which will be circulated to the GRSG experts prior to the forthcoming GRSG session.
34. Following the discussion, the expert from ISO announced his intention to provide the secretariat with a copy of the most important standards referenced to in his proposal. He volunteered to submit in due time a revised official document for amending UN Regulation No. 110, taking into account the comments received.
35. The expert from the Netherlands introduced GRSG-110-26 (superseding ECE/TRANS/WP.29/GRSG/2016/8) proposing an amendment to UN Regulation No. 110 to allow Class 0 hoses with couplings using sealing technologies other than those with a 45° cone and, thus, to avoid design restrictive requirements. The proposal received a number of comments.
36. GRSG adopted the proposal as reproduced below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2016 sessions, as part (see para. 32 above) of draft Supplement 5 to the 01 series of amendments to UN Regulation No. 110.
Annex 4B, paragraph 1.6.2.2., amend to read:
“1.6.2.2. The interface type for the hose coupling shall be:
(a) sealing cone of swivel-nut type of the type with a half vertical angle of 45°, or
(b) other couplings complying with the tests described in paragraph 1.7., as well as the tests mentioned in Annexes 5A and 5B.
In the case of an interface type using a soft seal body (e.g. O-ring), the type of material chosen shall be tested in accordance with Annexes 5D, 5F and 5G.
Couplings shall have complementary counterparts."
37. The expert from the Netherlands presented ECE/TRANS/WP.29/GRSG/2016/9 aimed at correcting a typographical error and clarifying the current provisions of the Regulation. He also introduced ECE/TRANS/WP.29/GRSG/2016/10 proposing to insert provisions for LNG fuel connector as specified in ISO 12617:2015. Both documents received a number of comments. The expert from France raised a study reservation on the reference to the ISO standard in paragraph 2.2. of Annex 4J. Following the discussion, GRSG adopted both proposal as reproduced below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2016 sessions, as part (see paras. 32 and 36 above) of draft Supplement 5 to the 01 series of amendments to UN Regulation No. 110:
Paragraph 7.1., correct “paragraphs 8.12. to 8.21.” to read “paragraphs 8.12. to 8.22.”.
Annex 4A, paragraph 4.2.4., correct “of Class 1 and Class 2” to read “of Class 2”.
Annex 4H, paragraph 2.2., correct “than 5 seconds” to read “than 2 seconds”.
Annex 4J
Paragraph 2.2., shall be deleted.
Paragraph 3.1.6., correct “shall be not be” to read “shall not be”.
Insert new paragraphs 4. and 4.1., to read:
“4. LNG filling receptacle dimensions
4.1. Figure 1 shows the dimensions of the LNG filling receptacle.
Figure 1
Dimensions of the receptacle
[Figure provided in the session report.]
"
38. GRSG agreed to resume consideration at the next session of GRSG on the ISO reference on the basis of a revised proposal jointly prepared by the Netherlands and NGV Global, taking into account the comments received.
39. The expert from France presented GRSG-110-23 introducing new provisions for the use of natural gas refrigeration systems to vehicles propelled by natural gas (CNG or LNG). GRSG noted general support on the proposal and agreed to resume consideration of this subject at its next session in October 2016. For that purpose, the secretariat was requested to circulate GRSG-110-23 with an official symbol.