Document ID: chunk:federal_register_of_legislation:F2010C00408:body:0:p20
Version: federal_register_of_legislation:F2010C00408
Segment Type: other
Provision Reference: 
Character Range: 56403–59302

steering wheel perpendicular to that point of contact.  In the case of an adjustable steering control, both tests shall be made with the wheel adjusted to the normal position indicated by the manufacturer or, failing that, midway between the limits of its range(s) of adjustment.

       2.2.2. If the vehicle is equipped with a device to adjust the slope and position of the steering wheel, the test shall be performed with the latter in the normal position of use indicated by the manufacturer and regarded by the laboratory as representative from the standpoint of energy absorption.

       2.2.3. If the steering control is fitted with a steering wheel air-bag, the test shall be carried out with the air-bag inflated.  At the request of the manufacturer and with the consent of the technical service the test may be carried out without the air-bag inflated.

       2.3. Body block

        The body block shall have the shape, dimensions, mass and characteristics shown in the appendix to this annex.

       2.4. Measurement of forces

       2.4.1. Measurements shall be made of the maximum force, acting horizontally and parallel to the longitudinal axis of the vehicle, applied to the body block as a result of impact against the steering control.

       2.4.2. This force may be measured directly or indirectly or may be calculated from values recorded during the test.

       2.5. Propulsion of the body block

       2.5.1. Any method of propulsion may be used, provided that when the body block strikes the steering control it is free from all connection with the propelling device.  The body block shall strike this control after an approximately straight trajectory parallel to the longitudinal axis of the vehicle.

       2.5.2. The H point of the body block, indicated by a special mark, shall be so adjusted that before the impact it is in the horizontal plane passing through the R point as indicated by the manufacturer of the vehicle.

       2.6. Speed

        The body block shall strike the steering control at a speed of
        24.1 km/h + 1.2 (15 mph + 0.8).
                                - 0                    - 0
        However, if the test has been carried out at a higher impact speed and the control has met the requirements laid down, the test shall be considered satisfactory.

       2.7. Measuring instruments

       2.7.1. The instrumentation used to record the parameters referred to in paragraph 5.2. of this Regulation shall enable the measurements to be made with the following accuracy:

       2.7.1.1. Speed of body block:  within 2%;

       2.7.1.2. Time recording:  within 1/1000 second;

       2.7.1.3. The beginning of the impact (zero point) at the moment of first contact of the body block with the steering control shall be identified on the recordings and films used for analysing the results of the test.

       2.7.1.4. Measurement