Division 2

9 is replaced by:

‘9.

TOLERANCES FOR MEASURING THE NET POWER

9.1.

The net power indicated by the manufacturer for the type of engine shall be accepted if it does not differ by more than ± 2 % for maximum power and more than ± 4 % at, the other measurement points on the curve with a tolerance of ± 1,5 % for engine speed, from the values measured by the technical service on the engine submitted for testing.

9.2.

During the tests to verify conformity of production the power shall be measured at two engine speeds S1 and S2 corresponding respectively to the measurement points of maximum power and maximum torque accepted for type approval. At these two engine speeds, which are subject to a tolerance of ± 5 %, the net power measured at at least one point within the ranges S1 ± 5 % and S2 ± 5 % shall not differ by more than ± 5 % from the approval figure.’