Proposal to amend the test methods for toughened glass pursuant to Korean defect investigations involving the ceramic printed area of certain panoramic sunroofs.

Pursuant to its defect investigations concerning the shattering of certain panoramic sunroofs, Korea proposes the establishment of an informal working group to prepare amendments to UN Regulation No. 43 and GTR No. 6 to specify test methods for evaluating panoramic sunroof glazing.

The main objective of this proposal is to develop an amendment to UN GTR No. 6 on Safety Glazing concerning clarification of the methods (e.g. 227g ball drop test), etc. for testing and evaluating the mechanical strength of toughened glass so that the safety of a panoramic sunroof is assured.

Proposal for testing of panoramic sunroof glass ceramic printed area (CPA).

Comments on proposed changes to the draft as of 25 April 2016.

Proposal to exempt Zone I from opaque obscuration requirements of GTR 6 under certain conditions.

Proposal to align UN R43 with provisions in GTR 6 concerning the exemption of possible opaque obscuration areas from Zone I of the test area on the windscreen of M₂, M₃ and N categories of vehicles.

Proposal to align UN R43 with provisions in GTR 6 concerning the exemption of possible opaque obscuration areas from Zone I of the test area on the windscreen of M₂, M₃ and N categories of vehicles. This proposal updates and supersedes document GRSG/2023/7.