Document ID: chunk:federal_register_of_legislation:F2024C00147:body:0:p54
Version: federal_register_of_legislation:F2024C00147
Segment Type: other
Provision Reference: 
Character Range: 182449–185161

above.  The impact shall be such that the hammer strikes the rear‑view mirror on the reflecting surface side.

       8.2.2.6.2. Test 2:  The point of impact shall be as defined in paragraphs 8.2.2.3. or 8.2.2.4. above.  The impact shall be such that the hammer strikes the rear‑view mirror on the opposite side to the reflecting surface.

       8.3. Bending test on the holder fixed to the stem

       8.3.1. Description of the test

       8.3.1.1. The holder shall be placed horizontally in a device in such a way that the adjustment parts of the mounting can be clamped securely.  In the direction of the greatest dimension of the holder, the end nearest to the point of fixing on the adjustment part shall be immobilized by means of a fixed step 15 mm wide, covering the entire width of the holder.

       8.3.1.2. At the other end, a step identical with the one described above shall be placed on the holder so that the specified test load can be applied to it (see figure 2 below).

       8.3.1.3. The end of the holder opposite that at which the force is applied may be clamped instead of kept in position as shown in figure 2.

       Example of bending test apparatus for rear view mirror protective housings

        Metal blocks

        Clamping mechanism     Weight P

       Figure 2

       8.3.2. The test load shall be 25 kg applied for one minute.

       8.4. Results of the tests

       8.4.1. In the tests described in paragraph 8.2. above, the pendulum shall return in such a way that the projection on the release plane of the position taken by the arm makes an angle of at least 20º with the vertical.

       8.4.1.1. The accuracy of the angle measurement shall be +/1º.

       8.4.2. The mirror shall not break during the tests described in paragraphs 8.2. and 8.3 above.  However, breakage of the reflecting surface of the mirror shall be allowed if one of the following conditions is fulfilled:

       8.4.2.1. The fragments of glass still adhere to the back of the holder or to a surface firmly attached to the holder, except that partial separation of the glass from its backing is permitted, provided this does not exceed 2.5 mm either side of the crack.  It is permissible for small splinters to become detached from the surface of the glass at the point of impact;

       8.4.2.2. The mirror is made of safety glass.

9. CONFORMITY OF PRODUCTION

       9.1. Any rear‑view mirror approved pursuant to this Regulation shall be so manufactured as to conform to the type approved by meeting the requirements set forth in paragraphs 6. to 8. above.

       9.2. In order to verify that the requirements of paragraph 9.1. are met, suitable controls of the production shall be