Document ID: chunk:federal_register_of_legislation:F2023C00142:front:0:p4
Version: federal_register_of_legislation:F2023C00142
Segment Type: other
Provision Reference: 
Character Range: 10612–13551

details of the optical design including the flutings, if applicable.

       2.2.2. A brief technical specification including the make and types of the ballast(s), where it applies.

       2.2.3. Samples, as follows:

       2.2.3.1. for approval of a headlamp, two samples with standard gas-discharge light source and one ballast of each type to be used, where applicable;

       2.2.4. For the test of plastic material of which the lenses are made:

       2.2.4.1. fourteen lenses;

       2.2.4.1.1. ten of these lenses may be replaced by ten samples of material, at least 60 x 80 mm in size, having a flat or convex outer surface and a substantially flat area (radius of curvature not less than 300 mm) in the middle measuring at least 15 x 15 mm.

       2.2.4.1.2. every such lens or sample of material shall be produced by the method to be used in mass production;

       2.2.4.2. a reflector to which the lenses can be fitted in accordance with the manufacturer's instructions.

       2.2.5. For testing the UV-resistance of light transmitting components made of plastic material against UV radiation of gas-discharge light sources inside the headlamp:

       2.2.5.1. One sample each of the relevant material as being used in the headlamp or one headlamp sample containing these.  Each material sample shall have the same appearance and surface treatment - if any - as intended for use in the headlamp to be approved.

       2.2.5.2. The UV-resistance testing of internal materials to light source radiation is not necessary if low-UV-type gas-discharge light sources are being applied as specified in Regulation XXX (TRANS/SC.l/WP.29/GRE/R.195)  or  if  provisions  are  taken,  to  shield  the relevant headlamp components from UV radiation, e.g. by glass filters.

       2.3. The materials making up the lenses and coatings, if any, shall be accompanied by the   test report of the characteristics of these materials and coatings if they have already been tested.

       2.4. The competent authority shall verify the existence of satisfactory arrangements for ensuring effective control of the conformity of production before type approval is granted.

       3. MARKINGS [3/]

       3.1. Headlamps submitted for approval shall bear legibly and indelibly on the lens the trade name or mark of the applicant.

       3.2. They shall comprise, on the lens and on the main body, [4/] spaces of sufficient size for the approval mark. and the additional symbols referred to in paragraph 4.; these paces shall be indicated on the drawings referred to in paragraph 2.2.1. above.

       3.3. Headlamps designed to satisfy the requirements of both right-hand and left-hand traffic shall bear markings indicating the two settings of the optical unit on the vehicle or of the gas-discharge light source on the reflector; these markings shall consist of the letters "R/ D" for the position for right-hand traffic and the letters