13. The expert from Germany introduced ECE/TRANS/WP.29/GRSG/2012/26 proposing amendments to UN Regulation No. 43 to allow type approval of multiple-glazed units having more than two glass panes. GRSG adopted the proposal, as amended below, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2013 sessions, as draft Supplement 2 to the 01 series of amendments to UN Regulation No. 43.

Paragraphs 2.8.1. and 2.8.2., amend to read:

“2.8.1. “Symmetrical multiple-glazed unit” means a multiple-glazed unit where all component panes are identical (e.g. all uniform toughened glass).

2.8.2. “Asymmetrical multiple-glazed unit” means a multiple-glazed unit other than a symmetrical multiple-glazed unit."

Annex 12, paragraph 4.3.1., amend to read:

“4.3.1. The uniform toughened-glass pane(s) break(s);”

14. The expert from Germany, chairing the Informal group on Plastic Glazing (IGPG) reported on the work progress made by the group (GRSG-103-17). He introduced GRSG-103-20 proposing a first set of amendments to UN Regulation No. 43. The proposal received a number of comments. GRSG agreed on the need to review the abrasion test. GRSG noted the intention of IGPG to meet again in Brussels on 22-23 January 2013. The GRSG Chair agreed to revisit this subject at the next GRSG session on the basis of a revised document. GRSG agreed to keep ECE/TRANS/WP.29/GRSG/2012/26 on the agenda as a reference document.

15. GRSG noted the request from a technical service having difficulties fulfilling the barometric pressure conditions required for the impact test, due to an altitude of about 2600 m (Bogota). The GRSG Chair questioned the need to insert into UN Regulation No. 43 and Global Technical Regulation No. 6 appropriate correction factors to resolve this problem. The expert from Germany volunteered to research this subject and prepare, if necessary, a concrete proposal for consideration at one of the next GRSG sessions.