Division 2.3.2.1 F1

The service braking system of vehicles of categories R1, R2, S1, R3a, R4a and S2a; and of vehicles of categories R3b and S2b, where the sum of the technically permissible masses per axle does not exceed 10 000 kg, shall be tested in such a manner that, the vehicle being laden, the energy input to the brakes is equivalent to that recorded in the same period of time when the laden vehicle being tested is driven at a steady speed of 40 km/h on a 7 % down-gradient for a distance of 1,7 km.

Alternatively, this requirement is deemed to be fulfilled for vehicles of categories R3a, R4a, S2a and for vehicles of categories R3b and S2b, where the sum of the technically permissible masses per axle does not exceed 10 000 kg, when these vehicles have passed the Type-III test according to point 2.5.