The Chair recalled the context of the proposal, last meeting when France requested to investigate this item.

The Chair tried to construct a text as in IGPG-08-03 and presented the results. He clarified that some tests are not necessary when the windscreen is not laminated, while e.g. UV resistance and 2260 g ball penetration would indeed be of some importance. It was explained that some tests are devoted to the glasses fitted with the interlayer, and then this would make sense to add such test.

There was a debate showing that some tests are not relevant for rigid plastic windscreens. Mr. Schmidt challenged to perform both the high temperature (100°) and the temperature change (70°) tests. A debate took place about whether these tests are complementary or not.

The Chair recalled that these questions were already discussed and solved in former meetings of the informal group.

PSA found that the coating thickness may not be the same everywhere on the sample, and suggested that the nominal thickness written down in Annex 1 – App12 should determine where the thickness is measured. It was clarified that not only this is not necessary, but in addition there is no standardized method for measuring the coating thickness. Yet the coating is recognized as very important for some other characteristics (ageing, colour, optical characteristics, abrasion resistance, etc).

As the target is to present an informal document to the May GRSG session, the group was ready to keep the document IGPG-08-03 within the group, and to eventually send an updated document to GRSG for its May session, together with the rest of the amendments to the regulation.

Conclusion: all members to have a look at the proposal for the next meeting of the informal group. The updated text will include all amendments adopted so far, except those related to installation (Annexes 14 and 21 – see item 9 below).