Proposal to clarify the testing method for resistance to high temperature in order to address issues raised with testing at high altitudes. CLEPA proposes to amend the wording of paragraph 5.1. to clarify how to proceed with a test in boiling water, which is permitted for safety glazing with both external surfaces of inorganic material. The tolerance of +0 °C / -2 °C is taken from ISO 3917, high temperature test. The temperature of boiling water can be determined with the required accuracy easily.

17. The expert from Germany introduced ECE/TRANS/WP.29/GRSG/2014/8 proposing an amendment to UN Regulation No. 43 to cope with the difficulties of technical services located at high altitudes when fulfilling the barometric pressure conditions required for the impact test. The expert from CLEPA preferred to adopt an amendment (ECE/TRANS/WP.29/GRSG/2014/9) to the boiling water test procedure. GRSG adopted ECE/TRANS/WP.29/GRSG/2014/9, as reproduced below, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2014 sessions, as draft Supplement 3 to the 01 series of amendments to UN Regulation No. 43.

Annex 3, paragraph 5.1., amend to read:
“5.1. Procedure
Heat to 100 °C +0 °C / -2 °C three samples or three square test pieces …… specified period of time, care being taken to avoid undue thermal shock. The test shall be carried out in an oven if the boiling water temperature is outside the specified tolerance. If samples are cut from windscreens, one edge of each such sample shall be part of an edge of the windscreen.”

Text prepared by the Informal Group on the Introduction of Plastic Glazing for windscreens and laminated plastic panes other than windscreens into UN Regulation No. 43 (IGPG) in order to clarify the requirements of Annex 21 (provisions on the installation of safety glazing on vehicles).

20. On behalf of IGPG, the expert from France introduced document ECE/TRANS/WP.29/GRSG/2014/15 proposing new definitions on interior and exterior glazing and updated provisions of Annex 21 on the installation of safety glazing on vehicles. GRSG adopted ECE/TRANS/WP.29/GRSG/2014/15 and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2014 sessions, as part (see para. 17 above) of draft Supplement 3 to the 01 series of amendments to UN Regulation No. 43.

Some experts raised that paragraph 6.1.3.4. of Annex 18 should be improved in order not to repeat the exemptions now included in Annex 21 per document GRSG/2014/15. Same was recognized for annex 14.

The experts discussed the inconsistency in the regulation about the wording and interpretation of the “number of test pieces”. Dr. Dümmler pointed out that this problem can be found in Annexes 14, 16, 17, 18, 19.

Current wording of the regulation permits three different interpretations:

• Samples of 300 × 300 mm,
• samples cut at 300 × 300 mm from real part or
• complete Real part.

The experts agreed for a further change in paragraph 5.2. of annexes 17, 18 and 19 (Secretariat to do the work). The Chair committed to inform GRSG on the necessity to amend annexes 14 and 16 as well for consistency. But the group agreed not to propose changes at the forthcoming GRSG session.

The experts discussed the document from Germany GRSG-106-02. Concerning paragraph 4.2.2.2., the experts acknowledged that the document GRSG-106-02 was developed by the approval authorities and was already covered by the document GRSG/2014/15. The experts agreed to review internally the proposed wording and to ask the German representative, at the 2nd day of the meeting, the origin, and whether withdrawing the document would be feasible.

Note of the Secretariat: This action is still to be conducted.

Mr Veeneman was keen that the group confirms full support to document GRSG/2014/15. The group had no further remark. The document GRSG/2014/15 will be presented by France with the support of the informal group.