Document ID: chunk:federal_register_of_legislation:F2024C00147:body:0:p65
Version: federal_register_of_legislation:F2024C00147
Segment Type: other
Provision Reference: 
Character Range: 212376–215653

PROCEDURE FOR DETERMINING THE RADIUS OF CURVATURE "r" OF A MIRROR'S REFLECTING SURFACE

       1. Measurements

       1.1. Equipment

        The "spherometer" described in figure/1 is used.

       1.2. Measuring points

       1.2.1. The principal radii of curvature shall be measured at 3 points situated as close as possible to positions at 1/3, 1/2 and 2/3 of the distance along the arc of the reflecting surface contained in a plane parallel to the greatest dimension of the mirror and passing through its centre and of the arc perpendicular to it.

       1.2.2. Where, because of mirror size, it is impossible to obtain measurement in the directions defined in item/1.2.1. the technical departments responsible for the tests may take measurements at this point in two perpendicular directions as close as possible to those prescribed above.

       2. Calculation of the radius of curvature (r)

        "r" expressed in mm is calculated using the formula:

        where rp1 is the radius of curvature of the first measuring point, rp2 at the second and rp3 at the third.

Figure 1

       Annex 7

       CONTROL OF THE CONFORMITY OF PRODUCTION

       1. DEFINITIONS

        For the purpose of this annex,

        "Type of deflection system" means a given combination of axes, swivel points and other articulating mechanisms which ensures deflection of the rear‑view mirror in the direction of impact concerned.

       2. TESTS

        Rear‑view mirrors shall be subjected to the following tests:

       2.1. Reflecting surface

       2.1.1. Verification of the nominal radius of curvature, pursuant to the requirements of paragraph 2 of annex6 to this Regulation;

       2.1.2. Measurement of the differences between radii of curvature pursuant to the requirements of paragraph 7.2.2. of this Regulation.

       2.2. Deflection system

        Impact test pursuant to the requirements of paragraph 8.2. of this Regulation.

       3. FREQUENCY AND RESULTS OF TESTS

       3.1. Verification of the nominal radius of curvature and measurement of the differences between radii of curvature

       3.1.1. Frequency:

        One test every three months, per approval number, per nominal radius of curvature.

       3.1.2. Results:

        All measurement results shall be recorded.

        The maximum difference values prescribed in paragraph 7.2.2. of this Regulation shall be complied with.

       3.2. Impact test

       3.2.1. Frequency:

        One test every three months, per approval number, per type of deflection system, per base configuration.

       3.2.2. Results:

        All results shall be recorded.

        The provisions of paragraph 8.4. of this Regulation shall be complied with.

       3.3. Selection of samples

        The selection of samples to be tested shall take account of the quantity produced for each type of rear‑view mirrors.

         Appendix C – ADR 14/02 - Rear Vision Mirrors
          1. definitions
              1.                                     Refer to Vehicle Standard (Australian Design Rule Definitions and Vehicle Categories) 2005,
          2. REQUIREMENTS FOR LEP; MA; MB; MC; AND MD1 VEHICLES ONLY
2.0.                                    Any internal rear vision mirror fitted to a