EN Official Journal of the European Union L 162/1

Only the original UN/ECE texts have legal effect under international public law. The status and date of entry into force of this Regulation should be checked in the latest version of the UN/ECE status document TRANS/WP.29/343, available at:

http://www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29fdocstts.html

Regulation No 5 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of power-driven vehicle’s sealed-beam headlamps (SB) emitting a European asymmetrical passing beam or a driving beam or both

Incorporating all valid text up to:

03 series of amendments — Date of entry into force: 10 June 2014

CONTENTS

REGULATION

1. Scope

2. Definitions

3. Application for approval

4. Markings

5. Approval

6. General specifications

7. Rated values

8. Illumination

9. Colour

10. Gauging of discomfort

11. Conformity of production

12. Penalties for non-conformity of production

13. Modifications of the type of sealed beam headlamp unit (SB unit) and extension of approval

14. Production definitely discontinued

15. Transitional provisions

16. Names and addresses of Technical Services responsible for conducting approval tests, and of Administrative Departments

ANNEXES

Annex 1: SB units for agricultural or forest tractors and other slow-moving vehicles

Annex 2: Communication concerning the approval or extension or withdrawal of approval or production definitely discontinued of a sealed beam headlamp unit (SB unit), pursuant to Regulation No 5

Annex 3: Minimum requirements for conformity of production control procedures

Annex 4: Examples of arrangements of approval marks

Annex 5: Tests for stability of photometric performance of headlamps in operation

Annex 6: Requirements for lamps incorporating lenses of plastic material — testing of lens or material samples and of complete lamps

Appendix 1 - Chronological order of approval tests

Appendix 2 - Method of measurement of the diffusion and transmission of light

Appendix 3 - Spray testing method

Appendix 4 - Adhesive tape adherence test

Annex 7: Minimum requirements for sampling by an inspector

1. SCOPE (1)

This Regulation applies to sealed-beam headlamps (SB) for vehicles of category T (2).

2. DEFINITIONS

For the purpose of this Regulation,

2.1. ‘Sealed beam’ headlamp unit (hereinafter termed ‘SB unit’), means a headlamp unit whose components, comprising a reflector system, a lens system and one or more electrical light sources are all parts of an integral whole which has been sealed in the course of manufacture and which cannot be dismantled without rendering the unit completely unusable;

2.2. ‘Lens’ means the outermost component of the headlamp (unit) which transmits light through the illuminating surface;

2.3. ‘Coating’ means any product or products applied in one or more layers to the outer face of a lens;

2.4. SB units are considered to be of different types if they differ in one or more of the following essentials of form or characteristics: 2.4.1. Trade name or mark; 2.4.2. Characteristics of the optical system; 2.4.3. Inclusion of additional components capable of altering the optical effects by reflection, refraction, absorption and/or deformation during operation; 2.4.4. The rated voltage (the same approval number may be granted if the only change is of rated voltage); 2.4.5. The rated wattage; 2.4.6. The shape of the filament(s); 2.4.7. The kind of beam produced (passing beam, driving beam or both); 2.4.8. Suitability for right-hand or left-hand traffic or for both traffic systems; 2.4.9. The colour of the light emitted; 2.4.10. The materials constituting the lens and coating, if any.

2.5. ‘Colour of the light emitted from the device.’ The definitions of the colour of the light emitted given in Regulation No 48 and its series of amendments in force at the time of application for type approval shall apply to this Regulation.

3. APPLICATION FOR APPROVAL

3.1. The application for approval shall be submitted by the owner of the trade name or mark or by his duly accredited representative. It shall specify: 3.1.1. Whether the SB unit is intended to provide both a passing beam and a driving beam, or only one of these beams; 3.1.2. Whether, if the headlamp is intended to provide a passing beam, it is designed for both left-hand and right-hand traffic or for either left-hand or right-hand traffic only; 3.1.3. Where applicable, that it is designed for agricultural or forest tractors and other slow-moving vehicles (see Annex 1).

3.2. Every application for approval shall be accompanied by: 3.2.1. Drawings in triplicate, sufficiently detailed to permit identification of the type and giving a front view of the unit (with, if applicable, details of the lens moulding) and a cross-section; also the filament(s) and shield(s) shall be shown on the drawings at a scale of 2: 1 both in front view and in side view; the drawing must show the position intended for the approval number and the additional symbols in relation to the circle of the approval mark; 3.2.2. Brief technical description; 3.2.3. Samples as follows: 3.2.3.1. For approval of an SB unit to emit white light: five samples; 3.2.3.2. For approval of a unit to emit coloured light: one coloured-light sample, and five white-light samples differing from the type submitted only in that the lens or filter is not coloured. 3.2.3.3. In the case of SB units differing only in that they are designed to emit coloured light from a type designed to emit white light and which has previously satisfied the tests in paragraphs 6, 7 and 8 below, it will be sufficient to submit one sample of the coloured-light type to undergo only the tests given in paragraph 9. 3.2.4. For the test of plastic material of which the lenses are made: 3.2.4.1. thirteen lenses; 3.2.4.1.1. six of these lenses may be replaced by six samples of material at least 60 × 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 × 15 mm; 3.2.4.1.2. every such lens or sample of material shall be produced by the method to be used in mass production; 3.2.4.2. a reflector to which the lenses can be fitted in accordance with the manufacturer’s instructions.

3.3. 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.

3.4. The Competent Authority shall verify the existence of satisfactory arrangements for ensuring effective control of the conformity of production before type approval is granted.

4. MARKINGS (3)

4.1. SB units submitted for approval shall bear the trade name or mark of the applicant.

4.2. They shall comprise on the front lens, a space of sufficient size for the approval mark and the additional symbols provided for in paragraph 5 below; the space must be shown on the drawings referred to in paragraph 3.2.1 above.

4.3. They shall carry, either on the front lens or on the body, the values of the rated voltage and of the rated wattage of the driving beam filament, followed by that of the rated wattage of the passing beam filament, as applicable.

4.4. In the case of SB units designed to meet the requirements both of countries where the traffic keeps to the right and of those where the traffic keeps to the left, the two settings of the unit on the vehicle shall be marked by the letters ‘R/D’ for the position for right-hand traffic and the letters ‘L/G’ for the position for left-hand traffic.

4.5. The trade names or marks and markings provided for under this paragraph 4 shall be clearly legible and indelible.

5. APPROVAL

5.1. General

5.1.1. If all the headlamp type samples submitted in accordance with paragraph 3 above satisfy the provisions of this Regulation, approval shall be granted.

5.1.2. Where grouped, combined or reciprocally incorporated lamps satisfy the requirements of more than one Regulation, a single international approval mark may be affixed provided that each of the grouped, combined or reciprocally incorporated lamps satisfies the provisions applicable to it.

5.1.3. An approval number shall be assigned to each type approved. The same Contracting Party may not assign the same number to another type of headlamp covered by this Regulation except in the case of an extension of the approval to a device differing only in the colour of the light emitted.

5.1.4. Notice of approval or of extension or refusal or withdrawal of approval or production definitely discontinued, of a type of headlamp pursuant to this Regulation shall be communicated to the Parties to the 1958 Agreement applying this Regulation, by means of a form conforming to the model in Annex 2 to this Regulation.

5.1.5. In addition to the mark prescribed in paragraph 4.1, an approval mark as described in paragraphs 5.2 and 5.3 below shall be affixed in the spaces referred to in paragraph 4.2 above to every headlamp conforming to a type approved under this Regulation.

5.2. Composition of the approval mark

The approval mark shall consist of:

5.2.1. An international approval mark, comprising:

5.2.1.1. A circle surrounding the letter ‘E’ followed by the distinguishing number of the country which has granted approval (4);

5.2.1.2. The approval number prescribed in paragraph 5.1.3 above.

5.2.2. The following additional symbol (or symbols):

5.2.2.1. On SB headlamps meeting left-hand traffic requirements only, a horizontal arrow pointing to the right of an observer facing the SB headlamp, i.e. to, the side of the road on which the traffic moves;

5.2.2.2. On SB headlamps designed to meet the requirements of both traffic systems by means of an appropriate adjustment of the setting of the headlamp, a horizontal arrow with a head on each end, the heads pointing respectively to the left and to the right;

5.2.2.3. On headlamps meeting the requirements of this Regulation in respect of the passing beam only, the letters ‘SC’;

5.2.2.4. On headlamps meeting the requirements of this Regulation in respect of the driving beam only, the letters ‘SR’;

5.2.2.5. On headlamps meeting the requirements of this Regulation in respect of both the passing beam and the driving beam, the letters ‘SCR’;

5.2.2.6. On headlamps incorporating a lens of plastic material, the group of letters ‘PL’ shall be affixed near the symbols prescribed in paragraphs 5.2.2.3 to 5.2.2.5 above;

5.2.2.7. In every case the relevant operating mode during the next procedure according to paragraph 1.1.1.1 of Annex 5 and the allowed voltage(s) according to paragraph 1.1.1.2 of Annex 5 shall be stipulated on the approval certificates and on the communication form transmitted to the countries which are Contracting Parties to the Agreement and which apply this Regulation. In the corresponding cases the device shall be marked as follows: On units meeting the requirements of this Regulation which are so designed that the filament of the passing beam shall not be lit simultaneously with that of any other lighting function with which it may be reciprocally incorporated: An oblique stroke (/) shall be placed behind the passing lamp symbol in the approval mark;

5.2.2.8. The two digits of the approval number (at present 02) which indicate the series of amendments incorporating the most recent major technical amendments made to the Regulation and at the time of issue of the approval and, if necessary, the required arrow may be marked close to the above additional symbols;

5.2.2.9. The marks and symbols referred to in paragraphs 5.2.1 and 5.2.2 above shall be clearly legible and indelible even when the headlamp is fitted in the vehicle.

5.3. Arrangement of the approval mark

5.3.1. Independent lamps

Annex 4, Figures 1 to 9, to this Regulation gives examples of arrangements of the approval mark with the above-mentioned additional symbols.

5.3.2. Grouped, combined or reciprocally incorporated lamps

5.3.2.1. Where grouped, combined or reciprocally incorporated lamps have been found to comply with the requirements of several Regulations, a single international approval mark may be affixed, consisting of a circle surrounding the letter ‘E’ followed by the distinguishing number of the country which has granted the approval, and an approval number. This approval mark may be located anywhere on the grouped, combined or reciprocally incorporated lamps, provided that: 5.3.2.1.1. It is visible after their installation; 5.3.2.1.2. No part of the grouped, combined or reciprocally incorporated lamps that transmits light can be removed without at the same time removing the approval mark.

5.3.2.2. The identification symbol for each lamp appropriate to each Regulation under which approval has been granted, together with the corresponding series of amendments incorporating the most recent major technical amendments to the Regulation at the time of issue of the approval and, if necessary, the required arrow shall be marked: 5.3.2.2.1. Either on the appropriate light-emitting surface, 5.3.2.2.2. Or in a group, in such a way that each of the grouped, combined or reciprocally incorporated lamps may be clearly identified (see four possible examples in Annex 4).

5.3.2.3. The size of the components of a single approval mark shall not be less than the minimum size required for the smallest of the individual marks by the Regulation under which approval has been granted.

5.3.2.4. An approval number shall be assigned to each type approved. The same Contracting Party may not assign the same number to another type of grouped, combined or reciprocally incorporated lamps covered by this Regulation.

5.3.2.5. Annex 4, Figure 10, to this Regulation gives examples of arrangements of approval marks for grouped, combined or reciprocally incorporated lamps with all the above-mentioned additional symbols.

5.3.3. Lamps, the lens of which is used for different types of headlamps and which may be reciprocally incorporated or grouped with other lamps

The provisions laid down in paragraph 5.3.2 above are applicable.

5.3.3.1. In addition, where the same lens is used, the latter may bear the different approval marks relating to the different types of headlamps or units of lamps, provided that the main body of the headlamp, even if it cannot be separated from the lens, also comprises the space described in paragraph 4.2 above and bears the approval mark of the actual functions. If different types of headlamps comprise the same main body, the latter may bear the different approval marks.

5.3.3.2. Annex 4, Figure 11, to this Regulation gives examples of arrangements of approval marks relating to the above case.

6. GENERAL SPECIFICATIONS

6.1. Each sample shall conform to the specifications set forth in this paragraph 6 and in paragraphs 7 and 8 below, and, if necessary, paragraph 9.

6.2. SB units shall be so made as to retain their prescribed photometric characteristics and to remain in good working order when in normal use, despite the vibrations to which they may be subjected.

6.2.1. Headlamps shall be fitted with a device enabling them to be so adjusted on the vehicle as to comply with the rules applicable to them. Such a device need not be fitted on the SB headlamp inserts if the use of such inserts is confined to vehicles on which the headlamp setting can be adjusted by other means. Where an SB headlamp providing a driving beam and an SB headlamp providing a passing beam are assembled as exchangeable subunits to form a composite unit the adjusting device shall enable each SB unit individually to be duly adjusted.

6.2.2. However, this will not apply to headlamp assemblies whose reflectors are indivisible. For this type of assembly the requirements of paragraph 8 of this Regulation shall apply. In the case where more than one light source is used to provide the main beam the combined main-beam functions will be used to determine the maximum value of the illumination (E max).

6.3. The terminals shall only be in electrical connection with the appropriate filament or filaments and shall be robust and firmly fixed to the unit.

6.4. If the units are circular they shall provide all the physical features and electrical connections shown in one of the plates SB2 — SB7 in Annex 4 and shall be made to the dimensions in that plate.

6.5. SB units designed to meet the requirements both of countries where the traffic keeps to the right and of those where the traffic keeps to the left, may be adapted for traffic on a given side of the road either by an appropriate initial setting when fitted on the vehicle, or by selective setting by the user. Such initial or selective setting may consist, for example, of fixing the angular setting of the unit on the vehicle. In all cases, only two precise setting positions, one for right-hand and one for left-hand traffic, shall be possible, and the design shall preclude inadvertent shifting of the unit from the one position to the other or its setting in an intermediate position. Conformity with the requirements of this paragraph shall be verified visually and, where necessary, by a test fitting.

6.6. Complementary tests shall be done according to the requirements of Annex 5 to ensure that in use there is no excessive change in photometric performance.

6.7. If the lens of the headlamp is of plastic material, tests shall be done according to the requirements of Annex 6.

7. RATED VALUES

7.1. The values of rated voltage are: 6, 12 and 24 volts (5).

7.2. The power consumed at the test voltage by any submitted SB unit shall not exceed the rated wattage marked on the unit, by more than the percentage specified in Table 1. No lower limit is specified for the tolerance on wattage but the minimum illumination values specified in Table 2 of paragraph 8.8 must be obtained. Table 1 Circular units of 180 mm diameter Circular units of 145 mm diameter Rated voltage 6 12 6 12 Test voltage 6 12 6 12 Rated wattage and permitted tolerance Double filaments (6) Driving beam 60 + 0 % 37,5 + 0 % Passing beam 50 + 0 % 50 + 0 % Driving beam filament only 75 + 0 % 50 + 0 % Passing beam filament only 50 + 0 % 50 + 0 %

8. ILLUMINATION (7)

8.1. SB units shall be so made as to give adequate illumination without dazzle for the passing beam, and good illumination for the driving beam.

8.2. The illumination produced by the unit shall be checked on a vertical screen set at a distance of 25 m in front of the unit and at right angles to its axis (see Annex 4, plates SB8a and SB8b).

8.3. The passing beam must produce a sufficiently sharp ‘cut-off’ to permit satisfactory alignment with its aid. The ‘cut-off’ must be a horizontal line on the side opposite to the direction of the traffic for which the unit is intended; on the other side it should be horizontal or within an angle of 15° above the horizontal.

8.4. The SB unit shall be aimed so that on passing beam: 8.4.1. In the case of units designed to meet the requirements of right-hand traffic, the ‘cut-off’ on the left half of the screen (8) is horizontal and, in the case of units designed to meet the requirements of left-hand traffic, the ‘cut-off’ on the right half of the screen is horizontal; 8.4.2. This horizontal part of the ‘cut-off’ is situated, on the screen, 25 cm below the level of the horizontal plane passing through the focus of the unit (see Annex 4, plates SB8a and SB8b); 8.4.3. The screen is in the position indicated in Annex 4, plates SB8a and SB8b (9).

8.5. When so aimed, the unit need, if its approval is sought solely for a passing beam (10), meet only the requirements referred to in paragraph 8.8 below; if it is intended to provide both a passing beam and a driving beam it shall meet the requirements referred to in paragraphs 8.8 and 8.9.

8.6. Where an SB unit so aimed does not meet the requirements referred to in paragraphs 8.8 and 8.9 below, its alignment may be changed, provided that the axis of the beam is not laterally displaced by more than 1° (= 44 cm) to the right or left (11). To facilitate alignment by means of the ‘cut-off’, the unit may be partially occulted in order to sharpen the ‘cut-off’.

8.7. In the case of an SB unit providing a driving beam only, it shall be so aimed that the area of maximum illumination is centred on the point of intersection HV of the lines hh and vv; such a unit need meet only the requirements referred to in paragraph 8.9.

8.8. The illumination produced on the screen by the passing beam shall meet the following requirements: Table 2 Point on measuring screen Required illumination in lux SB units for right-hand traffic SB units for left-hand traffic Minimum Maximum B 50 L B 50 R — 0,3 75 R 75 L 6 — 50 R 50 L 6 — 25 L 25 R 1,5 — 25 R 25 L 1,5 — Energy point in zone III — 0,7 Energy point in zone IV 2 — Energy point in zone I — 20

8.8.1. There shall be no lateral variations detrimental to good visibility in any of the zones, I, II, III and IV;

8.8.2. SB units designed to meet the requirements of both right-hand and left-hand traffic must, in each of the two setting positions, meet the requirements set forth above for the corresponding direction of traffic.

8.9. In the case of an SB unit designed to provide a driving beam and a passing beam, measurements of the illumination produced on the screen by the driving beam shall be taken with the same unit alignment and voltage as for measurements under paragraph 8.8 above.

8.10. The illumination produced on the screen by the driving beam shall meet the following requirements: 8.10.1. The point of intersection HV of the line hh and vv shall be situated within the isolux 90 per cent of maximum illumination. The maximum value shall not be less than 32 lux; 8.10.2. Starting from point HV, horizontally to the right and left, illumination shall be not less than 16 lux up to a distance of 1,125 metres, and not less than 4 lux up to a distance of 2,25 metres.

8.11. The screen illumination values mentioned in paragraphs 8.8 and 8.9 above shall be measured by means of a photoelectric cell, the effective area of which shall be contained within a square of 65 mm side.

9. COLOUR

The light emitted shall be white.

10. GAUGING OF DISCOMFORT

The discomfort caused by the passing beam of SB units shall be gauged (12).

11. CONFORMITY OF PRODUCTION

11.1. Headlamps approved under this Regulation shall be so manufactured as to conform to the type approved by meeting the requirements set forth in paragraphs 8 and 9.

11.2. In order to verify that the requirements of paragraph 11.1 are met, suitable controls of the production shall be carried out.

11.3. The holder of the approval shall in particular: 11.3.1. ensure the existence of procedures for the effective control of the quality of products; 11.3.2. have access to the control equipment necessary for checking the conformity to each approved type; 11.3.3. ensure that data of test results are recorded and that related documents shall remain available for a period to be determined in accordance with the administrative service; 11.3.4. analyse the results of each type of test in order to verify and ensure the stability of the product characteristics, making allowance for variation of an industrial production; 11.3.5. ensure that for each type of product at least the tests prescribed in Annex 3 to this Regulation are carried out; 11.3.6. ensure that any collecting of samples giving evidence of non-conformity with the type of test considered shall give rise to another sampling and another test. All the necessary steps shall be taken to re-establish the conformity of the corresponding production.

11.4. The Competent Authority which has granted type approval may at any time verify the conformity control methods applicable to each production unit.

11.4.1. In every inspection, the test books and production survey records shall be presented to the visiting inspector.

11.4.2. The inspector may take samples at random to be tested in the manufacturer’s laboratory. The minimum number of samples may be determined in the light of the results of the manufacturer’s own checks.

11.4.3. When the quality level appears unsatisfactory or when it seems necessary to verify the validity of the tests carried out in the application of paragraph 11.4.2 above, the inspector shall select samples, to be sent to the Technical Service which has conducted the type approval tests, using the criteria of Annex 7.

11.4.4. The Competent Authority may carry out any test prescribed in this Regulation. These tests will be on samples selected at random without causing distortion of the manufacturer’s delivery commitments and in accordance with the criteria of Annex 7.

11.4.5. The Competent Authority shall strive to obtain a frequency of inspection of once every two years. However, this is at the discretion of the Competent Authority and their confidence in the arrangements for ensuring effective control of the conformity of production. In the case where negative results are recorded, the Competent Authority shall ensure that all necessary steps are taken to re-establish the conformity of production as rapidly as possible.

11.5. Headlamps with apparent defects are disregarded.

11.6. The reference mark is disregarded.

12. PENALTIES FOR NON-CONFORMITY OF PRODUCTION

12.1. The approval granted in respect of an SB unit pursuant to this Regulation may be withdrawn if the requirements set forth above are not met, or if a unit bearing the approval mark does not conform to the type approved.

12.2. If a Contracting Party to the Agreement applying this Regulation withdraws an approval it has previously granted, it shall forthwith so notify the other Contracting Parties applying this Regulation, by means of a communication form conforming to the model in Annex 2 to this Regulation.

13. MODIFICATIONS OF THE TYPE OF SEALED BEAM HEADLAMP UNIT (SB UNIT) AND EXTENSION OF APPROVAL

13.1. Every modification of the type of sealed beam headlamp unit (SB unit) shall be notified to the Administrative Department which approved the type of sealed beam headlamp unit (SB unit). The department may then either: 13.1.1. Consider that the modifications made are unlikely to have an appreciable adverse effect and that in any case the sealed beam headlamp unit (SB unit) still complies with the requirements; or 13.1.2. Require a further test report from the Technical Service responsible for conducting the tests.

13.2. Confirmation or refusal of approval, specifying the alterations, shall be communicated by the procedure specified in paragraph 5.1.4 above to the Parties to the Agreement applying this Regulation.

13.3. The Competent Authority issuing the extension of approval shall assign a series number to each communication form drawn up for such an extension and inform thereof the other Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in Annex 2 to this Regulation.

14. PRODUCTION DEFINITELY DISCONTINUED

If the holder of the approval completely ceases to manufacture a device approved in accordance with this Regulation he shall so inform the authority which granted the approval. Upon receiving the relevant communication that authority shall inform thereof the other Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in Annex 2 to this Regulation.

15. TRANSITIONAL PROVISIONS

15.1. As from 12 months after the official date of entry into force of the 03 series of this Regulation, Contracting Parties applying this Regulation shall cease to grant approvals according to this Regulation.

15.2. Contracting Parties applying this Regulation shall not refuse to grant extensions of approval to this and any previous series of amendments of this Regulation.

15.3. Existing approvals granted before the official date of entry into force of the 03 series of this Regulation and all extensions of approvals, including those to a preceding series of amendments to this Regulation granted subsequently, shall remain valid indefinitely.

15.4. Contracting Parties applying this Regulation shall continue to issue approvals for headlamps on the basis of this and any previous series of amendments to this Regulation, provided that the headlamps are intended as replacements for fitting to vehicles in use.

15.5. Contracting Parties applying this Regulation shall continue to allow fitting of a headlamp approved to this Regulation on a vehicle or vehicle type.

15.6. Contracting Parties applying this Regulation shall continue to allow fitting or use on a vehicle in use of a headlamp approved to this Regulation as amended by any previous series of amendments, provided that the headlamp is intended for replacement.

16. NAMES AND ADDRESSED OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS AND OF ADMINISTRATIVE DEPARTMENTS

The Parties to the 1958 Agreement applying this Regulation shall communicate to the United Nations Secretariat the names and addresses of the Technical Services responsible for conducting approval tests and of the Administrative Departments which grant approval and to which forms certifying approval or refusal, or extension or withdrawal of approval, or production definitely discontinued, issued in other countries, are to be sent.

(1) Nothing in this regulation shall prevent a Party to the Agreement applying this Regulation from prohibiting the combination of a headlamp incorporating a lens of plastic material approved under this Regulation with a mechanical headlamp-cleaning device (with wipers).

(2) As defined in Annex 7 to the Consolidated Resolution on the Construction of Vehicles (R.E.3), (document TRANS/WP.29/78/Rev.1/Amend.2 as last amended by Amend.4).

(3) In the case of SB units designed to meet the requirements of traffic moving on one side of the road only (either right or left), it is further recommended that the area which can be occulted to prevent discomfort to users in a country where traffic moves on the side of the road opposite to that of the country for which the SB unit was designed should be outlined indelibly on the front lens. This marking is not necessary, however, where the area is clearly apparent from the design.

(4) The distinguishing numbers of the Contracting Parties to the 1958 Agreement are reproduced in Annex 3 to Consolidated Resolution on the Construction of Vehicles (R.E.3), document TRANS/WP.29/78/Rev.2/Amend.1.

(5) 24-volt units are under consideration.

(6) In the case of SB units with double filaments, the samples may be submitted for approval for the two functions or for the passing beam only.

(7) All the photometric measurements shall be carried out at the test voltage given in paragraph 7.

(8) The test screen must be sufficiently wide to allow examination of the ‘cut-off’ over a range of at least 5° from the line vv.

(9) If, in the case of a unit designed to meet the requirements of this Regulation with respect to the passing beam only, the focal axis diverges appreciably in from the general direction of the beam, lateral adjustment shall be effected in the manner which best satisfies the requirements for illumination at points 75 R and 50 R for right-hand traffic and at points 75 L and 50 L for left-hand traffic.

(10) A unit designed to emit a passing beam may incorporate a driving beam not complying with the specification.

(11) The limit of realignment of 1° towards the right or left is not incompatible with vertical realignment, which is only limited by the conditions laid down in paragraph 8.9.

(12) This requirement will be the subject of a recommendation for the benefit of administrations.

ANNEX 1 SB UNITS FOR AGRICULTURAL OR FOREST TRACTORS AND OTHER SLOW-MOVING VEHICLES 1. The provisions of this Regulation shall also apply to the approval of special SB units for agricultural or forest tractors and other slow-moving vehicles, such units being intended to provide both a driving beam and a passing beam and having a diameter (1) of less than 160 mm with the following modifications: 1.1. The minimum requirements for illumination laid down in paragraph 8.8 of this Regulation shall be reduced in the ratio subject to the following absolute lower limits: 3 lux at either point 75 R or point 75 L; 5 lux at either point 50 R or point 50 L; 1,5 lux in zone IV; 1.2. Instead of the symbols provided for in paragraph 5.2.2 of this Regulation, the unit shall be marked with the letters ‘SM’ in an inverted triangle. (1) If the projected area of the reflector is not circular, the diameter shall be that of a circle having the same area as the projected area of the apparent useful surface of the reflector.

ANNEX 2 COMMUNICATION (Maximum format: A4 (210 × 297 mm))

ANNEX 3 MINIMUM REQUIREMENTS FOR CONFORMITY OF PRODUCTION CONTROL PROCEDURES 1. GENERAL 1.1. The conformity requirements shall be considered satisfied from a mechanical and geometric standpoint, if the differences do not exceed inevitable manufacturing deviations within the requirements of this Regulation. 1.2. With respect to photometric performances, the conformity of mass-produced headlamps shall not be contested if, when testing photometric performances of any headlamp chosen at random: 1.2.1. no measured value deviates unfavourably by more than 20 per cent from the values prescribed in this Regulation. For values B 50 L (or R) and zone III, the maximum unfavourable deviation may be respectively: B 50 L (or R) : 0,2 lx equivalent 20 per cent 0,3 lx equivalent 30 per cent Zone III : 0,3 lx equivalent 20 per cent 0,45 lx equivalent 30 per cent 1.2.2. or if 1.2.2.1. for the passing beam, the values prescribed in this Regulation are met at HV (with a tolerance of + 0,2 lx) and related to that aiming at least one point of each area delimited on the measuring screen (at 25 m) by a circle 15 cm in radius around points B 50 L (or R) (1) (with a tolerance of + 0,1 lx), 75 R (or L), 25 R, 25 L, and in the entire area of zone IV which is not more than 22,5 cm above line 25 R and 25 L; 1.2.2.2. and if, for the driving beam, HV being situated within the isolux 0,75 Emax, a tolerance of + 20 per cent for maximum values and – 20 per cent for minimum values is observed for the photometric values at any measuring point specified in paragraph 8.10 of this Regulation. 1.2.3. If the results of the tests described above do not meet the requirements, the alignment of the headlamp may be changed, provided that the axis of the beam is not displaced laterally by more than 1° to the right or left (2). 1.3. With respect to the verification of the change in vertical position of the cut-off line under the influence of heat, the following procedure shall be applied: One of the sampled headlamps shall be tested according to the procedure described in paragraph 2.1 of Annex 5 after being subjected three consecutive times to the cycle described in paragraph 2.2.2 of Annex 5. The headlamp shall be considered as acceptable if Δr does not exceed 1,5 mrad. If this value exceeds 1,5 mrad but is not more than 2,0 mrad, a second headlamp shall be subjected to the test after which the mean of the absolute values recorded on both samples shall not exceed 1,5 mrad. 1.4. The chromaticity coordinates shall be complied with. 2. MINIMUM REQUIREMENTS FOR VERIFICATION OF CONFORMITY BY THE MANUFACTURER For each type of headlamp the holder of the approval mark shall carry out at least the following tests, at appropriate intervals. The tests shall be carried out in accordance with the provisions of this Regulation. If any sampling shows non-conformity with regard to the type of test concerned, further samples shall be taken and tested. The manufacturer shall take steps to ensure the conformity of the production concerned. 2.1. Nature of tests Tests of conformity in this Regulation shall cover the photometric characteristics and the verification of the change in vertical position of the cut-off line under the influence of heat. 2.2. Methods used in tests 2.2.1. Tests shall generally be carried out in accordance with the methods set out in this Regulation. 2.2.2. In any test of conformity carried out by the manufacturer, equivalent methods may be used with the consent of the Competent Authority responsible for approval tests. The manufacturer is responsible for proving that the applied methods are equivalent to those laid down in this Regulation. 2.2.3. The application of paragraphs 2.2.1 and 2.2.2 requires regular calibration of test apparatus and its correlation with measurements made by a Competent Authority. 2.2.4. In all cases the reference methods shall be those of this Regulation, particularly for the purpose of administrative verification and sampling. 2.3. Nature of sampling Samples of headlamps shall be selected at random from the production of a uniform batch. A uniform batch means a set of headlamps of the same type, defined according to the production methods of the manufacturer. The assessment shall in general cover series production from individual factories. However, a manufacturer may group together records concerning the same type from several factories, provided these operate under the same quality system and quality management. 2.4. Measured and recorded photometric characteristics The sampled headlamp shall be subjected to photometric measurements at the points provided for in the Regulation, the reading being limited to points Emax, HV (3), HL, HR (4) in the case of the driving beam, and to points B 50 L (or R), HV, 75 R (or L) and 25 L (or R) in the case of the passing beam (see figure in Annex 4). 2.5. Criteria governing acceptability The manufacturer is responsible for carrying out a statistical study of the test results and for defining, in agreement with the Competent Authority, criteria governing the acceptability of his products in order to meet the specifications laid down for verification of conformity of products in paragraph 12.1 of this Regulation. The criteria governing the acceptability shall be such that, with a confidence level of 95 per cent, the minimum probability of passing a spot check in accordance with Annex 7 (first sampling) would be 0,95. (1) Letters in brackets refer to headlamps intended for left-hand traffic. (2) A unit designed to emit a passing beam may incorporate a driving beam not complying with the specification. (3) When the driving beam is reciprocally incorporated with the passing beam, HV in the case of the driving beam shall be the same measuring point as in the case of the passing beam. (4) HL and HR: points on ‘hh’ located at 1,125 m to the left and to the right of point HV respectively.

ANNEX 4 EXAMPLES OF ARRANGEMENTS OF APPROVAL MARKS Figure 1 The SB headlamp bearing the approval marking shown above is a headlamp approved in the Netherlands (E4), meeting the requirements of this Regulation as amended by the 02 series of amendments in respect of both the driving beam and the passing beam (SCR), and which is designed for right-hand traffic only. NOTE: The approval number and the additional symbol(s) shall be placed close to the circle and either above or below the letter ‘E’, or to the right or left of that letter. The digits of the approval number shall be on the same aide of the letter ‘E’ and face the same direction. The additional symbol(s) must be diametrically opposed to the approval number. The use of Roman numerals as approval numbers should be avoided so as to prevent any confusion with other symbols. Figure 2 Figure 3a Figure 3b The SB headlamp bearing the approval mark shown above is a headlamp meeting the requirements of this Regulation with respect to both the passing beam and the driving beam and designed: For left-hand traffic only. For both traffic systems, by means of an adjustment as desired of the headlamp. Figure 4 Figure 5 The SB headlamp bearing the approval mark shown above is a headlamp incorporating the lens of plastic material meeting the requirements of this Regulation with respect to the passing beam only, and designed: For both traffic systems. For right-hand traffic only. Figure 6 Figure 7 The SB headlamp bearing the approval mark shown above is a headlamp incorporating the lens of plastic material meeting the requirements of this Regulation: With respect to both the passing beam only, and designed for left-hand traffic only. With respect to the driving beam only. Figure 8 Figure 9 Identification of a headlamp meeting the requirements of Regulation No 5 With respect to both the passing beam and driving beam and designed for right-hand traffic only. With respect to the passing beam only and designed for right-hand traffic only. The passing lamp filament shall not be lit simultaneously with the driving lamp filament and/or another reciprocally incorporated lamp. Figure 10 Examples of simplified markings for grouped, combined or reciprocally incorporated lamps (The vertical and horizontal lines schematize the shape of the light-signalling device. They are not part of the approval mark). Model A Model B Model C Model D NOTE: The four examples shown above correspond to a lighting device bearing an approval mark relating to: A front position lamp approved in accordance with the 01 series of amendments to Regulation No 7; A headlamp meeting the requirements of this Regulation with respect to the passing beam and to the driving beam, and designed for both traffic systems and incorporating a lens of plastic material; A front fog lamp approved in accordance with the 02 series of amendments to Regulation No 19 and incorporating a lens of plastic material; A front direction indicator lamp of category 1 a approved in accordance with the 02 series of amendments to Regulation No 6. Figure 11 Lamp reciprocally incorporated with a headlamp Example 1 The above example corresponds to the marking of a lens of plastic material intended to be used in different types of headlamps, namely: either : a headlamp with a passing beam designed for right-hand and left-hand traffic and a driving beam approved in Germany (El) in accordance with the requirements of Regulation No 5 as amended by the 02 series of amendments, which is reciprocally incorporated with a front position lamp approved in accordance with the 01 series of amendments to Regulation No 7; or : a headlamp with a passing beam designed for right-hand and left-hand traffic and a driving beam with a maximum intensity comprised between 86 250 and 101 250 candelas, approved in Germany (El) in accordance with the requirements of Regulation No 31 as amended by the 02 series of amendments which is reciprocally incorporated with the same front position lamp as above; or even : either of the above-mentioned headlamps approved as a single lamp. The main body of the headlamp shall bear the only valid approval number, for instance: or or or Figure 11 Example 2 The above example corresponds to the marking of a lens used in an assembly of two headlamps approved in Germany (E1), consisting of a headlamp emitting a passing beam designed for both traffic systems and of a driving beam meeting the requirements of Regulation No 1, and of a headlamp emitting a driving beam meeting the requirements of Regulation No 5. Plate SB2 — Sealed Beam Headlamp Unit, 180 mm (7 in) DIA, type 2 double Beam (Passing & Driving) Plate SB3 — Sealed Beam Headlamp Unit, 180 mm (7 in) DIA, type 1 single Beam (Driving only) All dimensions in millimetres Plate SB4 — Sealed Beam Headlamp Unit, 180 mm (7 in) DIA, type 2 single Beam (Passing only) All dimensions in millimetres Plate SB5 — Sealed Beam Headlamp Unit, 145 mm (5,75 in) DIA, type 1 single Beam (Driving only) All dimensions in millimetres Plate SB6 — Sealed Beam Headlamp Unit, 145 mm (5,75 in) DIA, type 2 double Beam (Passing & Driving) All dimensions in millimetres Plate SB7 — Sealed Beam Headlamp Unit, 145 mm (5,75 in) DIA, type 1 single Beam (Passing only) All dimensions in millimetres Plates SB8a and SB8b — Measuring screens A. Headlamp for right-hand traffic (dimensions in mm) h-h: horizontal plane passing through focus of headlamp v-v: vertical plane B. Headlamp for left-hand traffic (dimensions in mm) h-h: horizontal plane passing through focus of headlamp v-v: vertical plane

ANNEX 5 TESTS FOR STABILITY OF PHOTOMETRIC PERFORMANCE OF HEADLAMPS IN OPERATION TESTS ON COMPLETE HEADLAMPS Once the photometric values have been measured according to the prescriptions of this Regulation, in points for Emax for driving beam and HV, 50 R, B 50 L for passing beam (or HV, 50 L, B 50 R for headlamps designed for left-hand traffic) a complete headlamp sample shall be tested for stability of photometric performance in operation. ‘Complete headlamps’ shall be understood to mean the complete lamp itself including those surrounding body parts and lamps which could influence its thermal dissipation. 1. TEST OF STABILITY OF PHOTOMETRIC PERFORMANCE The tests shall be carried out in a dry and still atmosphere at an ambient temperature of 23 °C ± 5 °C, the complete headlamp being mounted on a base representing the correct installation on the vehicle. 1.1. Clean headlamp The headlamp shall be operated for 12 hours as described in subparagraph 1.1.1 and checked as prescribed in subparagraph 1.1.2. 1.1.1. Test procedure The headlamp shall be operated for a period according to the specified time, so that: 1.1.1.1. (a) in the case where only one lighting function (driving or passing beam) is to be approved, the corresponding filament is lit for the prescribed time (1), (b) in the case of a reciprocally incorporated passing lamp and driving lamp (dual filament SB headlamp): If the applicant declares that the headlamp is to be used with a single filament lit (2) at a time, the test shall be carried out in accordance with this condition, activating (1) each specified function successively for half the time specified in paragraph 1.1; In all other cases (1), (2) the headlamp shall be subjected to the following cycle until the time specified is reached: 15 minutes, passing-beam filament lit 5 minutes, all filaments lit. (c) in the case of grouped lighting functions all the individual functions shall be lit simultaneously for the time specified for individual lighting functions (a) also taking into account the use of reciprocally incorporated lighting functions (b), according to the manufacturer’s specifications. 1.1.1.2. Test voltage The voltage shall be adjusted so as to supply a wattage 15 per cent (26 per cent for 24 V types) higher than the rated wattage specified in this Regulation for the type(s) of SB headlamp(s) concerned is (are) obtained. 1.1.2. Test results 1.1.2.1. Visual inspection Once the headlamp has been stabilized to the ambient temperature, the headlamp lens and the external lens, if any, shall be cleaned with a clean, damp cotton cloth. It shall then be inspected visually; no distortion, deformation, cracking or change in colour of either the headlamp lens or the external lens, if any, shall be noticeable. 1.1.2.2. Photometric test To comply with the requirements of this Regulation, the photometric values shall be verified in the following points: Passing beam: 50 R — B 50 L — HV for headlamps designed for right-hand traffic 50 L — B 50 R — HV for headlamps designed for left-hand traffic Driving beam: Point of Emax Another aiming may be carried out to allow for any deformation of the headlamp base due to heat (the change of the position of the cut-off line is covered in paragraph 2 of this annex); A 10 per cent discrepancy between the photometric characteristics and the values measured prior to the test is permissible including the tolerances of the photometric procedure. 1.2. Dirty headlamp After being tested as specified in subparagraph 1.1 above, the headlamp shall be operated for one hour as described in subparagraph 1.1.1, after being prepared as prescribed in subparagraph 1.2.1, and checked as prescribed in subparagraph 1.1.2. 1.2.1. Preparation of the headlamp 1.2.1.1. Test mixture 1.2.1.1.1. For headlamp with the outside lens in glass: The mixture of water and a polluting agent to be applied to the headlamp shall be composed of: 9 parts by weight of silica sand with a particle size of 0-100 μm, 1 part by weight of vegetal carbon dust (beechwood) with a particle size of 0-100 μm, 0,2 part by weight of NaCMC (3), and an appropriate quantity of distilled water, with a conductivity of ≤ 1 mS/m. The mixture must not be more than 14 days old. 1.2.1.1.2. For headlamp with outside lens in plastic material: The mixture of water and polluting agent to be applied to the headlamp shall be composed of: 9 parts by weight of silica sand with a particle size of 0-100 μm, 1 part by weight of vegetal carbon dust (beechwood) with a particle size of 0-100 μm, 0,2 part by weight of NaCMC3, 13 parts by weight of distilled water with a conductivity of ≤ 1 mS/m, and 2 ± 1 parts by weight of surface-actant (4). The mixture must not be more than 14 days old. 1.2.1.2. Application of the test mixture to the headlamp The test mixture shall be uniformly applied to the entire light emitting surface of the headlamp and then left to dry. This procedure shall be repeated until the illumination value has dropped to 15-20 per cent of the values measured for each following point under the conditions described in paragraph 1 above: Point of Emax in driving beam, photometric distribution for a driving/passing lamp, Point of Emax in driving beam, photometric distribution for a driving lamp only, 50 R and 50 V (5) for a passing lamp only, designed for right-hand traffic, 50 L and 50 V (5) for a passing lamp only, designed for left-hand traffic. 1.2.1.3. Measuring equipment The measuring equipment shall be equivalent to that used during headlamp approval tests. 2. TEST FOR CHANGE IN VERTICAL POSITION OF THE CUT-OFF LINE UNDER THE INFLUENCE OF HEAT This test consists of verifying that the vertical drift of the cut-off line under the influence of heat does not exceed a specified value for an operating passing lamp. The headlamp tested in accordance with paragraph 1.1 shall be subjected to the test described in paragraph 2.1, without being removed from or readjusted in relation to its test fixture. 2.1. Test The test shall be carried out in a dry and still atmosphere at an ambient temperature of 23 °C ± 5 °C. Using a mass production SB headlamp which has been aged for at least one hour the headlamp shall be operated on passing beam without being dismounted from or readjusted in relation to its test fixture. (For the purpose of this test, the voltage shall be adjusted as specified in paragraph 1.1.1.2). The position of the cut-off line in its horizontal part (between vv and the vertical line passing through point B 50 L for right-hand traffic or B 50 R for left-hand traffic) shall be verified 3 minutes (r3) and 60 minutes (r60) respectively after operation. The measurement of the variation in the cut-off line position as described above shall be carried out by any method giving acceptable accuracy and reproducible results. 2.2. Test results 2.2.1. The result expressed in milliradians (mrad) shall be considered as acceptable when the absolute value recorded on the headlamp is not more than 1,0 mrad (Δ r I ≤ 1,0 mrad). 2.2.2. However, if this value is more than 1,0 mrad but not more than 1,5 mrad (1,0 mrad < Δ rI ≤ 1,5 mrad) a second headlamp shall be tested as described in 2.1 after being subjected three consecutive times to the cycle as described below, in order to stabilize the position of mechanical parts of the headlamp on a base representative of the correct installation on the vehicle: Operation of the passing lamp for one hour, (the voltage shall be adjusted as specified in paragraph 1.1.1.2), Period of rest for one hour. The headlamp type shall be considered as acceptable if the mean value of the absolute values Δ rI measured on the first sample and Δ rII measured on the second sample is not more than 1,0 mrad (1) When the tested headlamp is grouped and/or reciprocally incorporated with signalling lamps, the latter shall be lit for the duration of the test. In the case of a direction indicator lamp, it shall be lit in flashing operation mode with an on/off time ratio of approximately one to one. (2) Should two filaments be simultaneously lit when headlamp flashing is used, this shall not be considered as being normal use of both filaments simultaneously. (3) NaCMC represents the sodium salt of carboxymethylcellulose, customarily referred to as CMC. The NaCMC used in the dirt mixture shall have a degree of substitution (DS) of 0,6-0,7 and a viscosity of 200-300 cP for a 2 per cent solution at 20 °C. (4) The tolerance on quantity is due to the necessity of obtaining a dirt that correctly spreads out on all the plastic lens. (5) 50 V is situated 375 mm below HV on the vertical line v-v on the screen at 25 m distance.

ANNEX 6 REQUIREMENTS FOR LAMPS INCORPORATING LENSES OF PLASTIC MATERIAL — TESTING OF LENS OR MATERIAL SAMPLES AND OF COMPLETE LAMPS 1. GENERAL SPECIFICATIONS 1.1. The samples supplied pursuant to paragraph 3.2.4 of this Regulation shall satisfy the specifications indicated in paragraphs 2.1 to 2.5 below. 1.2. Two out of the five samples of complete lamps supplied pursuant to paragraph 3.2.3 of this Regulation and incorporating lenses of plastic material shall, with regard to the lens material, satisfy the specifications indicated in paragraph 2.6 below. 1.3. The samples of lenses of plastic material or samples of material shall be subjected, with the reflector to which they are intended to be fitted (where applicable), to approval tests in the chronological order indicated in Table A reproduced in Appendix 1 to this annex. 1.4. However, if the lamp manufacturer can prove that the product has already passed the tests prescribed in paragraphs 2.1-2.5 below, or the equivalent tests pursuant to another Regulation, those tests need not be repeated; only the tests prescribed in Appendix 1, Table B, shall be mandatory. 2. TESTS 2.1. Resistance to temperature changes 2.1.1. Tests Three new samples (lenses) shall be subjected to five cycles of temperature and humidity (RH = relative humidity) change in accordance with the following programme: 3 hours at 40 °C ± 2 °C and 85-95 per cent RH; 1 hour at 23 °C ± 5 °C and 60-75 per cent RH; 15 hours at – 30 °C ± 2 °C; 1 hour at 23 °C ± 5 °C and 60-75 per cent RH; 3 hours at 80 °C ± 2 °C; 1 hour at 23 °C ± 5 °C and 60-75 per cent RH; Before this test, the samples shall be kept at 23 °C ± 5 °C and 60-75 per cent RH for at least four hours. Note: The periods of one hour at 23 °C ± 5 °C shall include the periods of transition from one temperature to another which are needed in order to avoid thermal shock effects. 2.1.2. Photometric measurements 2.1.2.1. Method Photometric measurements shall be carried out on the samples before and after the test. These measurements shall be made using a standard lamp, at the following points: B 50 L and 50 R for the passing beam of a passing lamp or a passing/driving lamp (B 50 R and 50 L in the case of headlamps intended for left-hand traffic); Emax route for the driving beam of a driving lamp or a passing/driving lamp. 2.1.2.2. Results The variation between the photometric values measured on each sample before and after the test shall not exceed 10 per cent including the tolerances of the photometric procedure. 2.2. Resistance to atmospheric and chemical agents 2.2.1. Resistance to atmospheric agents Three new samples (lenses or samples of material) shall be exposed to radiation from a source having a spectral energy distribution similar to that of a black body at a temperature between 5 500 K and 6 000 K. Appropriate filters shall be placed between the source and the samples so as to reduce as far as possible radiations with wave lengths smaller than 295 nm and greater than 2 500 nm. The samples shall be exposed to an energetic illumination of 1 200 W/m2 ± 200 W/m2 for a period such that the luminous energy that they receive is equal to 4 500 MJ/m2 ± 200 MJ/m2. Within the enclosure, the temperature measured on the black panel placed on a level with the samples shall be 50 °C ± 5 °C. In order to ensure a regular exposure, the samples shall revolve around the source of radiation at a speed between 1 and 5 1/min. The samples shall be sprayed with distilled water of conductivity lower than 1 mS/m at a temperature of 23 °C ± 5 °C, in accordance with the following cycle: spraying : 5 minutes; drying : 25 minutes. 2.2.2. Resistance to chemical agents After the test described in paragraph 2.2.1 above and the measurement described in paragraph 2.2.3.1 below have been carried out, the outer face of the said three samples shall be treated as described in paragraph 2.2.2.2 with the mixture defined in paragraph 2.2.2.1 below. 2.2.2.1. Test mixture The test mixture shall be composed of 61,5 per cent n-heptane, 12,5 per cent toluene, 7,5 per cent ethyl tetrachloride, 12,5 per cent trichloroethylene and 6 per cent xylene (volume per cent). 2.2.2.2. Application of the test mixture Soak a piece of cotton cloth (as per ISO 105) until saturation with the mixture defined in paragraph 2.2.2.1 above and, within 10 seconds, apply it for 10 minutes to the outer face of the sample at a pressure of 50 N/cm2, corresponding to an effort of 100 N applied on a test surface of 14 × 14 mm. During this 10-minute period, the cloth pad shall be soaked again with the mixture so that the composition of the liquid applied is continuously identical with that of the test mixture prescribed. During the period of application, it is permissible to compensate the pressure applied to the sample in order to prevent it from causing cracks. 2.2.2.3. Cleaning At the end of the application of the test mixture, the samples shall be dried in the open air and then washed with the solution described in paragraph 2.3 (Resistance to detergents) 23 °C ± 5 °C. Afterwards the samples shall be carefully rinsed with distilled water containing not more than 0,2 per cent impurities at 23 °C ± 5 °C and then wiped off with a soft cloth. 2.2.3. Results 2.2.3.1. After the test of resistance to atmospheric agents, the outer face of the samples shall be free from cracks, scratches, chipping and deformation, and the mean variation in transmission , measured on the three samples according to the procedure described in Appendix 2 to this annex shall not exceed 0,020 (Δ tm ≤ 0,020). 2.2.3.2. After the test of resistance to chemical agents, the samples shall not bear any traces of chemical staining likely to cause a variation of flux diffusion, whose mean variation , measured on the three samples according to the procedure described in Appendix 2 to this annex shall not exceed 0,020 (Δ dm ≤ 0,020). 2.3. Resistance to detergents and hydrocarbons 2.3.1. Resistance to detergents The outer face of three samples (lenses or samples of material) shall be heated to 50 °C ± 5 °C and then immersed for five minutes in a mixture maintained at 23 °C ± 5 °C and composed of 99 parts distilled water containing not more than 0,02 per cent impurities and one part alkylaryl sulphonate. At the end of the test, the samples shall be dried at 50 °C ± 5 °C. The surface of the samples shall be cleaned with a moist cloth. 2.3.2. Resistance to hydrocarbons The outer face of these three samples shall then be lightly rubbed for one minute with a cotton cloth soaked in a mixture composed of 70 per cent n-heptane and 30 per cent toluene (volume per cent), and shall then be dried in the open air. 2.3.3. Results After the above two tests have been performed successively, the mean value of the variation in transmission , measured on the three samples according to the procedure described in Appendix 2 to this annex shall not exceed 0,010 (Δ tm ≤ 0,010). 2.4. Resistance to mechanical deterioration 2.4.1. Mechanical deterioration method The outer face of the three new samples (lenses) shall be subjected to the uniform mechanical deterioration test by the method described in Appendix 3 to this annex. 2.4.2. Results After this test, the variations: in transmission : , and in diffusion : , shall be measured according to the procedure described in Appendix 2 in the area specified in paragraph 2.2.4 above. The mean value of the three samples shall be such that: Δ tm ≤ 0,100; Δ dm ≤ 0,050. 2.5. Test of adherence of coatings, if any 2.5.1. Preparation of the sample A surface of 20 mm × 20 mm in area of the coating of a lens shall be cut with a razor blade or a needle into a grid of squares approximately 2 mm × 2 mm. The pressure on the blade or needle shall be sufficient to cut at least the coating. 2.5.2. Description of the test Use an adhesive tape with a force adhesion of 2 N/(cm of width) ± 20 per cent measured under the standardized conditions specified in Appendix 4 to this annex. This adhesive tape, which shall be at least 25 mm wide, shall be pressed for at least five minutes to the surface prepared as prescribed in paragraph 2.5.1. Then the end of the adhesive tape shall be loaded in such a way that the force of adhesion to the surface considered is balanced by a force perpendicular to that surface. At this stage, the tape shall be torn off at a constant speed of 1,5 m/s ± 0,2 m/s. 2.5.3. Results There shall be no appreciable impairment of the gridded area. Impairments at the intersections between squares or at the edges of the cuts shall be permitted, provided that the impaired area does not exceed 15 per cent of the gridded surface. 2.6. Tests of the complete lamp incorporating a lens of plastic material 2.6.1. Resistance to mechanical deterioration of the lens surface 2.6.1.1. Tests The lens of lamp sample No 1 shall be subjected to the test described in paragraph 2.4.1 above. 2.6.1.2. Results After the test, the results of photometric measurements carried out on the lamp in accordance with this Regulation shall not exceed by more than 30 per cent the maximum values prescribed at points B 50 L and HV and not be more than 10 per cent below the minimum values prescribed at point 75 R (in the case of headlamps intended for left-hand traffic, the points to be considered are B 50 R, HV and 75 L). 2.6.2. Test of adherence of coatings, if any The lens of lamp sample No 2 shall be subjected to the test described in paragraph 2.5 above. 3. VERIFICATION OF THE CONFORMITY OF PRODUCTION 3.1. With regard to the materials used for the manufacture of lenses, the lamps of a series shall be recognized as complying with this Regulation if: 3.1.1. After the test for resistance to chemical agents and the test for resistance to detergents and hydrocarbons, the outer face of the samples exhibits no cracks, chipping or deformation visible to the naked eye (see paragraphs 2.2.2, 2.3.1 and 2.3.2); 3.1.2. After the test described in paragraph 2.6.1.1, the photometric values at the points of measurement considered in paragraph 2.6.1.2 are within the limits prescribed for conformity of production by this Regulation. 3.2. If the test results fail to satisfy the requirements, the tests shall be repeated on another sample of headlamps selected at random. Appendix 1 CHRONOLOGICAL ORDER OF APPROVAL TESTS A. Tests on plastic materials (lenses or samples of material supplied pursuant to paragraph 3.2.4 of this Regulation) Samples Lenses or samples of material Lenses Tests 1 2 3 4 5 6 7 8 9 10 11 12 13 1.1. Limited photometry (para. 2.1.2) X X X 1.1.1. Temperature change (para. 2.1.1) X X X 1.2. Limited photometry (para. 2.1.2) X X X 1.2.1. Transmission measurement X X X X X X X X X 1.2.2. Diffusion measurement X X X X X X 1.3. Atmospheric agents (para. 2.2.1) X X X 1.3.1. Transmission measurement X X X 1.4. Chemical agents (para. 2.2.2) X X X 1.4.1. Diffusion measurement X X X 1.5. Detergents (para. 2.3.1) X X X 1.6. Hydrocarbons (para. 2.3.2) X X X 1.6.1. Transmission measurement X X X 1.7. Deterioration (para. 2.4.1) X X X 1.7.1. Transmission measurement X X X 1.7.2. Diffusion measurement X X X 1.8. Adherence (para. 2.5) X

B. Tests on complete lamps (supplied pursuant to paragraph 3.2.3 of this Regulation) Tests Complete headlamp Sample No 1 2 2.1. Deterioration (para. 2.6.1.1) X 2.2. Photometry (para. 2.6.1.2) X 2.3. Adherence (para. 2.6.2) X Appendix 2 METHOD OF MEASUREMENT OF THE DIFFUSION AND TRANSMISSION OF LIGHT 1. EQUIPMENT (see figure) The beam of a collimator K with a half divergence rd is limited by a diaphragm DT with an opening of 6 mm against which the sample stand is placed. A convergent achromatic lens L2, corrected for spherical aberrations, links the diaphragm DT with the receiver R; the diameter of the lens L2 shall be such that it does not diaphragm the light diffused by the sample in a cone with a half top angle of β/2 = 14°. An annular diaphragm DD with angles and is placed in an image focal plane of the lens L2. The non-transparent central part of the diaphragm is necessary in order to eliminate the light arriving directly from the light source. It shall be possible to remove the central part of the diaphragm from the light beam in such a manner that it returns exactly to its original position. The distance L2 DT and the focal length F2 (1) of the lens L2 shall be so chosen that the image of DT completely covers the receiver R. When the initial incident flux is referred to 1 000 units, the absolute precision of each reading shall be better than 1 unit. 2. MEASUREMENTS The following readings shall be taken: Reading With sample With central part of DD Quantity represented T1 no no Incident flux in initial reading T2 yes (before test) no Flux transmitted by the new material in a field of 24 °C T3 yes (after test) no Flux transmitted by the tested material in a field of 24 °C T4 yes (before test) yes Flux diffused by the new material T5 yes (after test) yes Flux diffused by the tested material (1) For L2 it is recommended to use a focal distance of about 80 mm. Appendix 3 SPRAY TESTING METHOD 1. TEST EQUIPMENT 1.1. Spray gun The spray gun used shall be equipped with a nozzle 1,3 mm in diameter allowing a liquid flow rate of 0,24 ± 0,02 1/minute at an operating pressure of 6,0 bars - 0, + 0,5 bar. Under these operation conditions the fan pattern obtained shall be 170 mm ± 50 mm in diameter on the surface exposed to deterioration, at a distance of 380 mm ± 10 mm from the nozzle. 1.2. Test mixture The test mixture shall be composed of: Silica sand of hardness 7 on the Mohr scale, with a grain size between 0 and 0,2 mm and an almost normal distribution, with an angular factor of 1,8 to 2; Water of hardness not exceeding 205 g/m3 for a mixture comprising 25 g of sand per litre of water. 2. TEST The outer surface of the lamp lenses shall be subjected once or more than once to the action of the sand jet produced as described above. The jet shall be sprayed almost perpendicular to the surface to be tested. The deterioration shall be checked by means of one or more samples of glass placed as a reference near the lenses to be tested. The mixture shall be sprayed until the variation in the diffusion of light on the sample or samples measured by the method described in Appendix 2, is such that: Several reference samples may be used to check that the whole surface to be tested has deteriorated homogeneously. Appendix 4 ADHESIVE TAPE ADHERENCE TEST 1. PURPOSE This method allows to determine under standard conditions the linear force of adhesion of an adhesive tape to a glass plate. 2. PRINCIPLE Measurement of the force necessary to unstick an adhesive tape from a glass plate at an angle of 90°. 3. SPECIFIED ATMOSPHERIC CONDITIONS The ambient conditions shall be at 23 °C ± 5 °C and 65 ± 15 per cent relative humidity (RH). 4. TEST PIECES Before the test, the sample roll of adhesive tape shall be conditioned for 24 hours in the specified atmosphere (see paragraph 3 above). Five test pieces each 400 mm long shall be tested from each roll. These test pieces shall be taken from the roll after the first three turns were discarded. 5. PROCEDURE The test shall be under the ambient conditions specified in paragraph 3. Take the five test pieces while unrolling the tape radially at a speed of approximately 300 mm/s, then apply them within 15 seconds in the following manner: Apply the tape to the glass plate progressively with a slight lengthwise rubbing movement of the finger, without excessive pressure, in such a manner as to leave no air bubble between the tape and the glass plate. Leave the assembly in the specified atmospheric conditions for 10 minutes. Unstick about 25 mm of the test piece from the plate in a plane perpendicular to the axis of the test piece. Fix the plate and fold back the free end of the tape at 90°. Apply force in such a manner that the separation line between the tape and the plate is perpendicular to this force and perpendicular to the plate. Pull to unstick at a speed of 300 mm/s ± 30 mm/s and record the force required. 6. RESULTS The five values obtained shall be arranged in order and the median value taken as the result of the measurement. This value shall be expressed in Newtons per centimetre of width of the tape.