Division 3.2.1

United Kingdom

The vehicle tested shall be representative of vehicles to be put on the market and selected by the manufacturer in agreement with the technical service, to comply with the requirements of this Regulation. Measurements shall be made without any trailer, except in the case of non-separable vehicles. At the request of the manufacturer, measurements may be made on vehicles with lift axle(s) in a raised position.

Measurements shall be made on vehicles at the test mass m_t specified in accordance with the following table:

Vehicle Category	Vehicle test mass (m_t)
M₁	m_t = m_ro
N₁	m_t = m_ro
N₂, N₃	m_t = 50 kg per kW rated engine power Extra loading to reach the test mass of the vehicle shall be placed above the driven rear axle(s). The extra loading is limited to 75 % of the technically permissible maximum laden mass allowed for the rear axle. The test mass shall be achieved with a tolerance of ± 5 %. If the centre of gravity of the extra loading cannot be aligned with the centre of the rear axle, the test mass of the vehicle shall not exceed the sum of the front axle and the rear axle load in unladen condition plus the extra loading. The test mass for vehicles with more than two axles shall be the same as for a two-axle vehicle.
M₂, M₃	m_t = m_ro — mass of the crew member (if applicable) or, if the tests are carried out on an incomplete vehicle not having bodywork, m_t = 50 kg per kW rated engine power respectively in compliance with conditions above (see category N₂, N₃).