Division 2.5.1

When the vehicle is equipped with an auxiliary equipment reservoir or reservoirs with a total capacity exceeding 20 % of the total capacity of the brake reservoirs, an additional test shall be carried out during the course of which there shall be no interference with the functioning of the valves controlling the filling of the auxiliary equipment reservoir(s). A check shall be made during the course of this test that the period t₃ required to bring about a rise in the pressure in the brake reservoirs from 0 to p₂ is less than:

1. 2.5.1.1.

   eight minutes in the case of vehicles to which the coupling of a towed vehicle is not authorised

2. 2.5.1.2.

   eleven minutes in the case of vehicles to which the coupling of a towed vehicle is authorised.