Division 4.5

The direction of impact shall be on a vertical longitudinal plane of the vehicle through the impact point. The tolerance for this direction is ± 2°. The direction of impact of tests to the bonnet top shall be downward and rearward, as if the vehicle were on the ground. The angle of impact for tests with the child/small adult headform impactor shall be 50° ± 2° to the ground reference level. The effect of gravity shall be taken into account when the impact angle is obtained from measurements taken before the time of first contact.