Division 1.1.13

The windscreen wiper system shall continue to meet the requirements of paragraph 1.1.2. of this Annex without any degradation of efficiency, when it is operating at maximum frequency and when the vehicle is subjected to a relative air speed equal to 80 % of the vehicle’s maximum design speed or 160 km/h, whichever is lower. Vision area A of the windshield shall be prepared in accordance with paragraph 2.1.8. and 2.1.9. of this Annex. The aerodynamic effects associated with the size and shape of the windscreen, wiper arm(s) and wiper blade(s) shall be verified under these conditions, also taking into account paragraph 2.1.9.1. During the test, the wiper blade(s) shall remain in contact with the windscreen and complete lift-off shall not be permitted. The wiper blade(s) shall stay in full contact with the windscreen in the area as established in paragraph 1.1.2. for each complete cycle and any partial lift-off during upwards as well as downwards stroke shall not be permitted.