Document ID: chunk:federal_register_of_legislation:F2015C00542:reg:1:p41
Version: federal_register_of_legislation:F2015C00542
Segment Type: reg
Provision Reference: reg 1 (pt 41/43)
Character Range: 255673–258928

further series of tests carried out on a new set of test pieces gives satisfactory results.

              6.3. Cross-cut test

              6.3.1. Indices of difficulty and test method

               The requirements of Annex 3, paragraph 13., shall apply only to coated products.

              6.3.2. The cross-cut test shall be carried out on one of the test pieces from paragraph 6.2.

              6.3.3. Interpretation of results

              6.3.3.1. The cross-cut test shall be considered to have given a satisfactory result if:

               The cross-cut value Gt1 is met.

              6.3.3.2. The test piece shall be considered satisfactory from the point of view of approval if one of the following conditions is met:

              6.3.3.2.1. The test has given satisfactory results.

              6.3.3.2.2. The test having given an unsatisfactory result, a further test carried out on another remaining test piece from the test in paragraph 6.2. gives satisfactory results.

              6.4. Resistance-to-humidity test

              6.4.1. Indices of difficulty and test method

               The requirements of Annex 3, paragraph 7., shall apply.

              6.4.2. Ten square pieces or test windows of 300 x 300 mm shall be subjected to testing.

              6.4.3. Interpretation of results

              6.4.3.1. The humidity test shall be considered to have given a satisfactory result if:

              6.4.3.1.1. No visible decompositions like bubbles or milkiness occur on any sample,

              6.4.3.1.2. and if the light transmittance measured according to Annex 3, paragraph 9.1. does not fall to less than 95 per cent of the pre-test value and additionally to no less than 70 per cent for any window required for driver visibility.

              6.4.4. After testing the test pieces shall be stored for at least 48 hours at a temperature of 23 °C ± 2 °C and a relative humidity of 50 ± 5 per cent, and then subjected to the 227 g ball drop test described under paragraph 5. of this annex.

              7. Optical qualities

               The requirements of Annex 3, paragraph 9.1., shall apply for products which are requisite for driver visibility.

              7.1 Interpretation of results

               A set of samples shall be considered as satisfactory if one of the following conditions is met:

              7.1.1. All samples give satisfactory results.

              7.1.2. One sample having given an unsatisfactory result, a further set of samples gives satisfactory results.

              8. Fire resistance test

              8.1. Indices of difficulty and test method

               The requirements of Annex 3, paragraph 10., shall apply.

              8.2. Interpretation of results

               The test needs to be performed separately on both surfaces of the double glazed unit.

               The fire-resistance test shall be considered to have given a satisfactory result if the burning rate is less than 110 mm/min.

              8.2.1. For the purpose of approval a set of samples will be considered satisfactory if one of the following conditions is met:

              8.2.1.1. All samples give a satisfactory result.

              8.2.1.2. One sample