Document ID: chunk:federal_register_of_legislation:F2023C00919:body:0:p99
Version: federal_register_of_legislation:F2023C00919
Segment Type: other
Provision Reference: 
Character Range: 290700–293930

fully replenished (fuel, water, oil) and equipped with all the accessories and tools specified by the manufacturer.  Full fuel replenishment means that the fuel tank shall be filled to not less than 90 per cent of its capacity.
4.3.                                    The vehicle shall have the parking brake released and the gearbox in neutral.
4.4.                                    The vehicle shall be conditioned for at least 8 h at the temperature specified in paragraph 3.4. above.
4.5.                                    If a photometric or visual method is used, headlamps with a well-defined dipped-beam cut off should preferably be installed on the vehicle under test in order to facilitate the measurements. Other means are allowed to obtain a more precise reading (for example, removal of the headlamp lens).
5.                                          Test procedure
5.1.                                    General
The variations in either dipped beam or vehicle inclination, depending on the method chosen, shall be measured separately for each side of the vehicle.  The results obtained from both left and right headlamps under all the load conditions specified in Annex 5, shall be within the limits set out in paragraph 5.5. below.  The load shall be applied gradually without subjecting the vehicle to excessive shocks.
5.1.1.                              Where an AFS is fitted, the measurements shall be carried out with the AFS in its neutral state.
5.2.                                    Determination of the measured initial inclination
The vehicle shall be prepared as specified in paragraph 4. above and laden as specified in Annex 5 (first loading condition of the respective vehicle category). Before each measurement, the vehicle shall be rocked as specified in paragraph 5.4. below. Measurements shall be made three times.
5.2.1.                              If none of the three measured results differ by more than 2 mrad (0.2 per cent inclination) from the arithmetic mean of the results, that mean shall constitute the final result.
5.2.2.                              If any measurement differs from the arithmetic mean of the results by more than 2 mrad (0.2 per cent inclination), a further series of 10 measurements shall be made, the arithmetic mean of which shall constitute the final result.
5.3.                                    Measurement methods
Any method may be used to measure variations of inclination provided that the readings are accurate to within ±0.2 mrad (±0.02 per cent inclination).
5.4.                                    Treatment of vehicle in each loading condition
The vehicle suspension and any other part likely to affect dipped beam inclination shall be activated according to the methods described below.
However, the technical authorities and manufacturers may jointly propose other methods (either experimental or based upon calculations), especially when the test poses particular problems, provided such calculations are clearly valid.
5.4.1.                              M1 category vehicles with conventional suspension
With the vehicle standing on the measuring site and, if necessary, with the wheels resting on floating platforms (which shall be used