Document ID: chunk:federal_register_of_legislation:F2008C00179:body:0:p21
Version: federal_register_of_legislation:F2008C00179
Segment Type: other
Provision Reference: 
Character Range: 58800–61713

THE APPROVAL MARK
Model A
(See paragraph 4.4. of this Regulation)

The above approval mark affixed to a vehicle shows that the vehicle type concerned has, with regard to its interior fittings, been approved in the Netherlands (E 4), under the number 012439. The first two digits of the approval number indicate that the approval was granted in accordance with the requirements of Regulation No. 21 as amended by the 01 series of amendments.

Model B
(See paragraph 4.5. of this Regulation)

The above approval mark affixed to a vehicle shows that the vehicle type concerned has been approved in the Netherlands (E 4) pursuant to Regulations Nos. 21 and 33. [1/]The first two digits of the approval numbers indicate that, on the date on which these approvals were granted, Regulation No. 21 included the 01 series of amendments and Regulation No. 33 was still in its original form.

Annex 4

PROCEDURE FOR TESTING ENERGY-DISSIPATING MATERIALS

      1. Setting up ; test apparatus; procedure

          1.            Setting up

              1.      The component made of energy-dissipating materials shall be mounted and tested on the structural supporting member on which it is to be installed on the vehicle. The test shall preferably be carried out, where possible, directly on the body. The structural member, or the body, shall be firmly attached to the test bench so that it does not move under impact.

              2.      However, at the manufacturer's request, the component may be mounted on a fitting simulating installation on the vehicle, on condition that the assembly comprising the component and the fitting has the same geometrical arrangement as, and a degree of rigidity not lower and an energy-dissipating capacity not higher than those of the real assembly comprising the component and the structural supporting member.

          2.            Test apparatus

              1.      This apparatus consists of a pendulum whose pivot is supported by ball-bearings and whose reduced mass [1/] at its centre of percussion is 6.8 kg. The lower extremity of the pendulum consists of a rigid headform 165 mm in diameter whose centre is identical with the centre of percussion of the pendulum.

              2.      The headform shall be fitted with two accelerometers and a speed transducer, all capable of measuring values in the direction of impact.

          3.            Recording instruments

    The recording instruments used shall be such that measurements can be made with the following degrees of accuracy:

    1.3.1        Acceleration:

    accuracy = +/- 5 % of the real value;

    frequency response = up to 1,000 Hz;

    cross axis sensitivity = > 5 % of the lowest point on the scale.

    1.3.2        Speed :

    accuracy = +/- 2.5 % of real value;

    sensitivity = 0.5 km/h.

    1.3.3        Time recording :

    the instrumentation shall enable the action to be