Material variations (excluding changes in base material, see paragraph 3.7.2.2 above) for which the manufacturer confirms that such a material variation does not change the performance with respect to the required tests;
moment de freinage maximum résultant de la course maximale admise sr ou du volume de fluide maximum autorisé Vr lorsque la remorque recule (y compris la résistance au roulement = 0,01 · g · GBo);