Regulation No. 8-05

Name:Regulation No. 8-05
Description:Headlamps - Asymmetrical Passing/Driving Beam - Halogen Filament Lamps.
Official Title:Uniform Provisions Concerning the Approval of: Motor Vehicle Headlamps Emitting an Asymmetrical Passing Beam or a Driving Beam or Both and Equipped with Halogen Filament Lamps (H1, H2, H3, HB3, HB4, H7, H8, H9, HIR1, HIR2 and/or H11).
Country:ECE - United Nations
Date of Issue:1967-05-22
Amendment Level:05 Series
Number of Pages:60
Vehicle Types:Bus, Car, Component, Heavy Truck, Light Truck
Subject Categories:Lighting and Light Signalling Equipment
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Keywords:

headlamp, regulation, approval, beam, headlamps, test, paragraph, requirements, lamp, passing, filament, annex, driving, traffic, tests, samples, type, amendments, series, lens, lamps, point, values, photometric, mark, position, material, production, designed, sample, conformity, approved, light, case, maximum, number, force, figure, left-hand, line, prescribed, lenses, results, measured, standard, right-hand, incorporated, accordance, paragraphs, vehicle

Text Extract:

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E/ECE/324 )
E/ECE/TRANS/505 ) Add.7/Rev.4/Corr.1
August 29, 2003
STATUS OF UNITED NATIONS REGULATION
ECE 8
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
MOTOR VEHICLE HEADLAMPS EMITTING AN ASYMMETRICAL
PASSING BEAM OR A DRIVING BEAM OR BOTH AND
EQUIPPED WITH HALOGEN FILAMENT LAMPS
(H , H , H , HB , HB , H , H , H , HIR1, HIR2 AND/OR H )
Incorporating:
Supplement 3 to the 04 series of amendments
Date of Entry into Force: 27.10.92
Supplement 4 to the 04 series of amendments
Date of Entry into Force: 13.01.93
Supplement 5 to the 04 series of amendments
Date of Entry into Force: 09.02.94
Corr. 1 to Supplement 4 to the 04 series of amendments
Dated: 01.07.94
Corr. 1 to Revision 3 to the 04 series of amendments
Dated: 10.03.95
Corr. 1 to Revision 4 to the 04 series of amendments
Dated: 06.05.03
Supplement 6 to the 04 series of amendments
Date of Entry into Force: 15.01.97
Supplement 7 to the 04 series of amendments
Date of Entry into Force: 03.09.97
Supplement 8 to the 04 series of amendments
Date of Entry into Force: 25.12.97
Supplement 9 to the 04 series of amendments
Date of Entry into Force: 14.05.98
Supplement 10 to the 04 series of amendments
Date of Entry into Force: 04.02.99
05 series of amendments
Date of Entry into Force: 08.09.01

REGULATION No. 8
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF MOTOR VEHICLE HEADLAMPS
EMITTING AN ASYMMETRICAL PASSING BEAM OR A DRIVING BEAM OR BOTH AND
EQUIPPED WITH HALOGEN FILAMENT LAMPS (H , H , H , HB , HB , H , H , H , HIR1,
HIR2 AND/OR H )
REGULATION
CONTENTS
A. ADMINISTRATIVE PROVISIONS

Scope
1.
Definitions
2.
Application for approval of a headlamp
3.
Markings
4.
Approval
B. TECHNICAL REQUIREMENTS FOR HEADLAMPS
5.
General specifications
6.
Illumination
7.
Requirements concerning coloured lenses and filters
8.
Gauging of discomfort
9.
Standard headlamp
10.
Observation concerning colour
C. FURTHER ADMINISTRATIVE PROVISIONS
11.
Modifications and extension of approval of a type of headlamp
12.
Conformity of production
13.
Penalties for non-conformity of production
14.
Production definitely discontinued
15.
Names and addresses of technical services responsible for conducting approval tests and of
administrative departments
16.
Transitional provisions

REGULATION No. 8
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF MOTOR VEHICLE HEADLAMPS
EMITTING AN ASYMMETRICAL PASSING BEAM OR A DRIVING BEAM OR BOTH AND
EQUIPPED WITH HALOGEN FILAMENT LAMPS (H , H , H , HB , HB , H , H , H , HIR1,
HIR2 AND/OR H )
A. ADMINISTRATIVE PROVISIONS
SCOPE
This Regulation applies to motor vehicle headlamps which may incorporate lenses of glass or
plastic material.
1. DEFINITIONS
For the purpose of this Regulation,
1.1. Lens means the outermost component of the headlamp (unit) which transmits light through
the illuminating surface;
1.2. Coating means any product or products applied in one or more layers to the outer face of a
lens;
1.3. Headlamps of Different Types are headlamps which differ in such essential respects as:
1.3.1. the trade name or mark;
1.3.2. the characteristics of the optical system;
1.3.3. the inclusion or elimination of components capable of altering the optical effects by reflection,
refraction, absorption and/or deformation during operation. However, the fitting or elimination
of filters designed solely to change the colour of the beam and not its light distribution shall
not constitute a change in the type;
1.3.4. suitability for right-hand or left-hand traffic or for both traffic systems;
1.3.5. the kind of beam produced (passing beam, driving beam or both);
1.3.6. the holder intended to accommodate the filament lamp (or lamps) of one of the Categories H ,
H , H , HB , HB , H , H , H , HIR1, HIR2 and/or H ;
1.3.7. the materials constituting the lenses and coating, if any.

3. MARKINGS
3.1. Headlamps submitted for approval shall bear the trade name or mark of the applicant.
3.2. They shall comprise, on the lens and on the main body, spaces of sufficient size for the
approval mark and the additional symbols referred to in Paragraph 4; these spaces 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 of the vehicle or of the filament
lamp on the reflector; these markings shall consist of the Letters "R/D" for the position for
right-hand traffic and the Letters "L/G" for the position for left-hand traffic.
4. APPROVAL
4.1. General
4.1.1. If all the samples of a type of headlamp submitted in pursuance of Paragraph 2 above meet
the requirements of this Regulation, approval shall be granted.
4.1.2. 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.
This requirement shall not apply to headlamps fitted with a two-filament bulb when a single
beam is approved.
4.1.3. An approval number shall be assigned to each type approved. Its first two digits (at
present 04, corresponding to the 04 series of amendments, which entered into force on
July 6, 1986, and to the 05 series of amendments (not requiring changes in the approval
number)) shall indicate the series of amendments incorporating the most recent major
technical amendments made to the Regulation at the time of issue of the approval. The same
Contracting Party shall not assign the same number to another type of headlamp covered by
this Regulation, except if the approval is extended to a device which only differs from the
already approved device by the colour of the light emitted.
4.1.4. 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 1 to this Regulation, with the indications according to Paragraph 2.2.1.1.
4.1.4.1. if the headlamp is equipped with an adjustable reflector and if this headlamp is to be used
only in mounting positions according to the indications in Paragraph 2.2.1.1., the applicant
shall be obliged by the approval to inform the user in a proper way about the correct mounting
position(s).

4.2.3. In every case the relevant operating mode used during the test 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 certificate 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:
4.2.3.1. on headlamps 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.
4.2.3.2. on headlamps meeting the requirements of a Annex 5 to this Regulation only when supplied
with a voltage of 6 V or 12 V, a symbol consisting of the Number 24 crossed out by an oblique
cross (X) shall be placed near the filament lamp holder.
4.2.4. The two digits of the approval number (at present 04, corresponding to the 04 series of
amendments, which entered into force on July 6, 1986, and to the 05 series of amendments
(not requiring changes in the approval number)) which indicate the series of amendments
incorporating the most recent major technical amendments made to the Regulation at the
time of issue of the approval and, if necessary, the required arrow may be marked close to
the above additional symbols.
4.2.5. The marks and symbols referred to in Paragraphs 4.2.1. and 4.2.2. shall be clearly legible and
indelible even when the headlamp is mounted on the vehicle.
4.3. Arrangement of the Approval Mark
4.3.1. Independent Lamps
Annex 3, Figures 1 to 9, gives examples of arrangements of the approval marks with the
above-mentioned additional symbols.
4.3.2. Grouped, Combined or Reciprocally Incorporated Lamps
4.3.2.1. 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:
4.3.2.1.1. it is visible after their installation,
4.3.2.1.2. 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.

B. TECHNICAL REQUIREMENTS FOR HEADLAMPS
5. GENERAL SPECIFICATIONS
5.1. Each sample shall conform to the specifications set forth in Paragraphs 6 to 8 below.
5.2. Headlamps shall be so made as to retain their prescribed photometric characteristics and to
remain in good working order when in normal use, in spite of the vibrations to which they may
be subjected.
5.2.1. 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 components in
which the reflector and the lens cannot be separated provided the use of such components is
confined to vehicles on which the headlamp setting can be adjusted by other means. Where
a headlamp providing a driving beam and a headlamp providing a passing beam, each
equipped with its own filament lamp, are assembled to form a composite unit, the adjusting
device shall enable each optical system individually to be duly adjusted. However, this shall
not apply to headlamp assemblies whose reflectors are indivisible. For this type of assembly,
the requirements of Paragraph 6. shall apply.
5.3. The components by which the filament lamp(s) is/are fixed to the reflector shall be so made
that, even in darkness, the filament lamp(s) can be fixed in no other position but the correct
one.
The filament lamp-holder shall conform to the dimensional characteristics as given in the
following data sheets of IEC Publication 61-2:
Filament lamps Holder Data sheets
H
H
H
HB
HB
H
H
HIR1
HIR2
H
H
P 14.5s
X 5111
PK 22s
P 20d
P 22d
PX 26d
PG 17
PX 20d
PX 22d
PGJ 19-5
PGJ 19-2
7005-46-3
7005-99-2
7005-47-1
7005-31-1
7005-32-1
7005-5-1
7005-110-1
7005-....-1
7005- -
7005-110-1
7005-110-1

6.1.3. The headlamps shall be checked by means of (a) standard (reference) filament lamp(s)
designed for a rated voltage of 12 V, any selective-yellow filters being replaced by
geometrically identical uncoloured filters with a transmission factor of at least 80%. During
the checking of the headlamp the voltage at the terminals of the filament lamp must be
regulated so as to obtain the following characteristics:
Filament lamps
H
H
H
HB
HB
H
H
HIR1
HIR2
H
H
Approximate supply
voltage (in V) for
measurement
12
12
12
12
12
12
12
12
12
12
12
Light flux (in lumens)
1 150
1 300
1 100
1 300
825
1 100
600
1 840
1 355
1 500
1 000
The headlamp shall be deemed satisfactory if the photometric requirements are met with at
least one standard (reference) 12-volt filament lamp which may be supplied with the
headlamp.
6.1.4. The dimensions determining the position of the filament inside the standard filament lamp are
shown on the relevant data sheet of Regulation No. 37.
6.1.5. The bulb of the standard filament lamp must be of such optical shape and quality that it does
not cause any reflection or refraction adversely affecting the light distribution. Compliance
with this requirement must be checked by measuring the light distribution obtained when a
standard headlamp is fitted with the standard (reference) filament lamp.
6.2. Provisions Regarding Passing Beams
6.2.1. The passing beam must produce a sufficiently sharp "cut-off" to permit satisfactory
adjustment with its aid. The "cut-off" must be a horizontal straight line on the side opposite to
the direction of traffic for which the headlamp is intended; on the other side it must extend
neither beyond the broken line HV H H formed by a straight line HV H standing at an angle
of 45° to the horizontal and a straight line H H lying 25 cm above the straight line hh, nor
beyond the straight line HV H , inclined at an angle of 15° above the horizontal (see Annex 4).
A "cut-off" extending beyond both Line HV H and Line H H and resulting from a
combination of the above two possibilities shall in no circumstances be permitted.

6.2.5. The illumination produced on the screen by the passing beam shall meet the following
requirements:
Headlamps for
right-hand traffic
Point on measuring screen
Headlamps for
left-hand traffic
Required
illumination
in lux
Point B
Point 75
Point 75
Point 50
Point 50
Point 50
Point 25
Point 25
50 L
R
L
L
R
V
L
R
Point B
Point 75
Point 75
Point 50
Point 50
Point 50
Point 25
Point 25
50 R
L
R
R
L
V
R
L
≤ 0.4
≥ 12
≤ 12
≤ 15
≥ 12
≥ 6
≥ 2
≥ 2
Any point in Zone III
≤ 0.7
Any point in Zone IV
≥ 3
Any point in zone 1 ≤ 2 x (E
or E
)
E or E are the illuminations actually measured.
6.2.6. There shall be no lateral variations detrimental to good visibility in any of the Zones I, II, III
and IV.
6.2.7. The illumination values in Zones "A" and "B" as shown in Figure C in Annex 4 shall be
checked by the measurement of the photometric values of Points 1 to 8 on this figure; these
values shall lie within the following limits:
1 + 2 + 3 ≥ 0.3 lux, and
4 + 5 + 6 ≥ 0.6 lux, and
0.7 lux ≥ 7 ≥ 0.1 lux and
0.7 lux ≥ 8 ≥ 0.2 lux
These new values shall not be required for headlamps which have been approved before the
application date of Supplement 4 to the 04 series of amendments to this Regulation
(January 13, 1993) nor to the extensions of such approvals.
6.2.8. Headlamps designed to meet the requirements of both right-hand and left-hand traffic must in
each of the two setting positions of the optical unit or of the filament lamp, meet the
requirements set forth above for the corresponding direction of traffic.

6.4.3. additional tests are made after the reflector has been moved vertically ± 2° or at least into the
maximum position, if less than 2°, from its initial position by means of the headlamps
adjusting device. Having re-aimed the headlamp as a whole (by means of the goniometer for
example) in the corresponding opposite direction the light output in the following directions
shall be controlled and lie within the required limits:
passing beam: Points HV and 75R (75L respectively);
driving beam: I and Point HV (percentage of I ).
6.4.4. if the applicant has indicated more than one mounting positions, the procedure of
Paragraphs 6.4.1. to 6.4.3. shall be repeated for all the other positions;
6.4.5. if the applicant has not asked for special mounting positions, the headlamp shall be aimed for
measurements of Paragraphs 6.2. and 6.3. with the headlamps adjusting device in its mean
position. The additional tests of Paragraph 6.4.3. shall be made with the reflector moved into
its extreme positions (instead of ± 2°) by means of the headlamps adjusting device.
6.5. The screen illumination values referred to in Paragraphs 6.2.5. to 6.2.7. and 6.3. above shall
be measured by means of a photoreceptor, the effective area of which shall be contained
within a square of 65 mm side.
7. REQUIREMENTS CONCERNING COLOURED LENSES AND FILTERS
7.1. Approval may be obtained for headlamps emitting either white or selective-yellow light with a
filament lamp. Expressed in CIE thrichromatic coordinates, the corresponding colorimetric
characteristics are as follows:
Selective-yellow Filter (Screen or Lens)
Limit towards red
y ≥ 0.138 + 0.580 x
Limit towards green
y ≤ 1.29 x - 0.100
Limit towards white
y ≥ -x + 0.966
Limit towards
spectral value
y ≤ -x + 0.992
which can also be expressed as follows:
dominant wave-length:
575-585 nm
purity factor:
0.90-0.98
The transmission factor must be ≥ 0.78 when determined by means of a source of light with a
colour temperature of 2856 K .
7.2. The filter must be part of the headlamp, and must be attached to it in such a way that the user
cannot remove it either inadvertently or, with ordinary tools, intentionally.
8. GAUGING DISCOMFORT
The discomfort caused by the passing beam of headlamps shall be gauged
T

12. CONFORMITY OF PRODUCTION
12.1. Headlamps approved under this Regulation shall be so manufactured as to conform to the
type approved by meeting the requirements set forth in Paragraphs 6 and 7.
12.2. In order to verify that the requirements of Paragraph 12.1 are met, suitable controls of the
production shall be carried out.
12.3. The holder of the approval shall in particular:
12.3.1. ensure the existence of procedures for the effective control of the quality of products;
12.3.2. have access to the control equipment necessary for checking the conformity to each
approved type;
12.3.3. 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;
12.3.4. 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;
12.3.5. ensure that for each type of product at least the tests prescribed in Annex 2 to this Regulation
are carried out;
12.3.6. 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 necessary steps shall be
taken to re-establish the conformity of the corresponding production.
12.4. The competent authority which has granted type approval may at any time verify the
conformity control methods applicable to each production unit.
12.4.1. In every inspection, the test books and production survey records shall be presented to the
visiting inspector.
12.4.2. 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.
12.4.3. 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 12.4.2 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.
12.4.4. 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.
12.4.5. 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.

16.5. As from the official date of entry into force of Regulation No. 112, no Contracting Party
applying this Regulation shall prohibit the fitting on a new vehicle type of a headlamp
approved under Regulation No. 112.
16.6. Contracting Parties applying this Regulation shall continue to allow fitting on a vehicle type or
vehicle of a headlamp approved to this Regulation.
16.7. 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.

9. Brief description:...........................................................................................................................
Category as described by the relevant marking:
......................................................................................................................................................
Number and category(ies) of filament lamp or lamps:..................................................................
......................................................................................................................................................
Colour of light emitted: white/selective yellow ..........................................................................
10. Position of the approval mark:......................................................................................................
11. Reason(s) for extension (if applicable):........................................................................................
12. Approval granted/extended/refused/withdrawn: .......................................................................
13. Place.............................................................................................................................................
14. Date ..............................................................................................................................................
15. Signature: .....................................................................................................................................
16. The list of documents deposited with the Administrative Service which has granted approval is
annexed to this communication and may be obtained on request.

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 when the headlamp is equipped with a
filament lamp set to Standard A colour temperature.
The photometric performance of a headlamp emitting selective yellow light when equipped
with a colourless filament lamp shall be the values contained in this Regulation multiplied by
0.84.
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.

ANNEX 3
EXAMPLES OF ARRANGEMENTS OF APPROVAL MARKS
Figure 1
a = 12 mm min.
The device bearing the approval mark shown above is a headlamp approved in the Netherlands (E4),
under approval Number 2439, meeting the requirements of this Regulation, as amended by the 04 series
of amendments (04) and 05 series of amendments, in respect of both the passing beam and the
driving beam (HCR) and is designed for right-hand traffic only.
The Number 30 indicates that the maximum luminous intensity of the driving beam is between
86,250 and 111,250 candelas.
Note: The approval number and additional symbols must be placed close to the circle and either above
or below the letter "E" or to left or right of that letter. The digits of the approval number must be on the
same side of the "E" and face in the same direction. The use of Roman numerals as approval numbers
should be avoided so as to prevent any confusion with other symbols.

Figure 4 Figure 5
The headlamp bearing the above approval mark is a headlamp incorporating the lens of plastic material
meeting the requirements of this Regulation in respect of the passing beam only and is designed:
For both traffic systems
For right-hand traffic only

(The vertical and horizontal lines schematise the shape of the light-signalling device.
They are not part of the approval mark)
Figure 10
Simplified Marking for Grouped, Combined or Reciprocally Incorporated Lamps

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 both traffic systems and a driving beam with a
maximum luminous intensity comprised between 86,250 and 111,250 candelas (as indicated
by the Number 30) approved in Germany (E1) in accordance with the requirements of
Regulation No. 8 as amended by the 04 and 05 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 both traffic systems, and a driving beam,
approved in Germany (E1) in accordance with the requirements of Regulation No. 1 as
amended by 01 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:
Example 2

ANNEX 4
MEASURING SCREEN
A. Headlamp for Right-hand Traffic
(Dimensions in mm)
STANDARD EUROPEAN BEAM

C. Measuring Points for Illumination Values
Note:
Figure C shows the measuring points for right-hand traffic.
Points 7 and 8 move to their corresponding location at the right-hand side of the picture for
left-hand traffic.

(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 90% of the maximum wattage specified in the
Regulation for filament lamps (Regulation No. 37). The applied wattage shall in all cases
comply with the corresponding value of a filament lamp 12 V rated voltage, except if the
applicant for approval specifies that the headlamp may be used at a different voltage. In the
latter case, the test shall be carried out with the filament lamp whose wattage is the highest
that can be used.
1.1.2. Test Results
1.1.2.1. Visual Inspection
Once the headlamp has been stabilised 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 E
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% 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 sub-paragraph 1.1. above, the headlamp shall be operated
for one hour as described in sub-paragraph 1.1.1., after being prepared as prescribed in
sub-paragraph 1.2.1., and checked as prescribed in sub-paragraph 1.1.2.

1.2.1.3. Measuring Equipment
The measuring equipment shall be equivalent to that used during headlamp approval tests. A
standard (reference) filament lamp shall be used for the photometric verification.
2. TEST FOR CHANGE IN VERTICAL POSITION OF THE CUT-OFF LINE UNDER THE
INFLUENCE OF HEAT
2.1. Test
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 shall be subjected to the test described
in Paragraph 2.1. without being removed from or readjusted in relation to its test fixture.
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 filament lamp 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 R for left-hand traffic or B 50 L for
right-hand traffic) shall be verified 3 minutes (r ) and 60 minutes (r ) 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 Δ r = / r - r / recorded on the headlamp is not more than 1.0 mrad
(Δ r ≤ 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 r ≤ 1.5 mrad) a second headlamp shall be tested as described in
Paragraph 2.1. after being subjected three consecutive times to the cycle as described below,
in order to stabilise 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 r measured on the first sample and Δ r measured on the second sample is not
more than 1.0 mrad.
⎛ Δ r
+ Δ r


2

≤ 1.0 mrad⎟


2.1.2. Photometric Measurements
2.1.2.1. Method
2.1.2.2. Results
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);
E route for the driving beam of a driving lamp or a passing/driving lamp.
The variation between the photometric values measured on each sample before and after the
test shall not exceed 10% 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/m ± 200 W/m for a period such that the luminous energy that they receive is equal
to 4,500 MJ/m ± 200 MJ/m . 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 l/minute.
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.

2.3. 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% 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
2.3.3. Results
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% n-heptane and 30% toluene (volume %),
and shall then be dried in the open air.
After the above two tests have been performed successively, the mean value of the variation
in transmission
T
Δ t =
− T
T
,
measured on the three samples according to the procedure described in Appendix 2 to this
Annex shall not exceed 0.010 (Δ t ≤ 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.

2.6. Tests of the Complete Headlamp Incorporating a Lens of Plastic Material
2.6.1. Resistance to Mechanical Deterioration of the Lens Surface
2.6.1.1. Tests
2.6.1.2. Results
The lens of lamp Sample No. 1 shall be subjected to the test described in Paragraph 2.4.1.
above.
After the test, the results of photometric measurements carried out on the headlamp in
accordance with this Regulation shall not exceed by more than 30% the maximum values
prescribed at Points B 50 L and HV and not be more than 10% 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
recognised 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.

B.
Tests on complete lamps (supplied pursuant to Paragraph 2.2.3 of this Regulation)
Complete headlamp
Tests
Sample No.
1
2
2.1. Deterioration (Paragraph 2.6.1.1.)
x
2.2. Photometry (Paragraph 2.6.1.2.)
x
2.3. Adherence (Paragraph 2.6.2.)
x

2. MEASUREMENTS
The following readings shall be taken:
Reading With sample With central part of D Quantity represented
T no no Incident flux in initial reading
T
T
T
T
yes
(before test)
yes
(after test)
yes
(before test)
yes
(after test)
no
no
yes
yes
Flux transmitted by the new material in a
field of 24° C
Flux transmitted by the tested material
in a field of 24° C
Flux diffused by the new material
Flux diffused by the tested material

ANNEX 6 - 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% 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.

ANNEX 7
MINIMUM REQUIREMENTS FOR SAMPLING BY AN INSPECTOR
1. GENERAL
1.1. The conformity requirements shall be considered satisfied from a mechanical and a geometric
standpoint, in accordance with the requirements of this Regulation, if any, if the differences do
not exceed inevitable manufacturing deviations.
1.2. With respect to photometric performance, the conformity of mass-produced headlamps shall
not be contested if, when testing photometric performances of any headlamp chosen at
random and equipped with a standard filament lamp;
1.2.1. No measured value deviates unfavourable by more than 20% from the values prescribed in
this Regulation. For values B 50 L (or R) and Zone III the maximum deviation may be
respectively:
1.2.2. or if
B50 L (or R):
0.2
lx equivalent 20%
0.3
lx equivalent 30%
Zone III:
0.3
lx equivalent 20%
0.45 lx equivalent 30%
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) (with a tolerance of
0.1 lx), 75 R (or L), 50 V, 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 E , a tolerance of +20%
for maximum values and -20% for minimum values is observed for the photometric values at
any measuring point specified in Paragraph 6.3.2 of this Regulation. The reference mark is
disregarded.
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.
1.2.4. If the results of the tests described above do not meet the requirements, tests on the
headlamps shall be repeated using another standard filament lamp.
1.2.5. Headlamps with apparent defects are disregarded.
1.2.6. The reference mark is disregarded.

2.2.1.2. Sample B
B2: in the case of A2
one headlamp more than
0%
but not more than
20%
one headlamp not more than
20%
B3: in the case of A2
one headlamp
0%
one headlamp more than
20%
but not more than
30%
2.2.2 or if the conditions of Paragraph 1.2.2 for Sample A are not fulfilled.
2.3. Approval Withdrawn
2.3.1. Sample A
2.3.2. Sample B
Conformity shall be contested and Paragraph 13 applied if, following the sampling procedure
in Figure 1 of this Annex, the deviations of the measured values of the headlamps are:
A4: one headlamp not more than
20%
one headlamp more than
30%
A5: both headlamps more than 20%
B4: in the case of A2
one headlamp more than
0%
but not more than
20%
one headlamp more than
20%
B5: in the case of A2
both headlamps more than 20%
B6: in the case of A2
one headlamp
0%
one headlamp more than
30%
2.3.3. or if the conditions of Paragraph 1.2.2 for Samples A and B are not fulfilled.

3.3. Approval Withdrawn
3.3.1. Sample C
3.3.2. Sample D
Conformity shall be contested and Paragraph 13 applied if, following the sampling procedure
in Figure 1 of this Annex, the deviations of the measured values of the headlamps are:
C3: one headlamp not more than
20%
one headlamp more than
20%
C4: both headlamps more than 20%
D3: in the case of C2
one headlamp 0 or more than
0%
one headlamp more than
20%
3.3.3. or if the conditions of Paragraph 1.2.2 for Samples C and D are not fulfilled.
4. CHANGE OF THE VERTICAL POSITION OF THE CUT-OFF LINE
With respect to the verification of the change in vertical positions of the cut-off line under the
influence of heat, the following procedure shall be applied:
One of the headlamps of Sample A after sampling procedure in Figure 1 of this Annex 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, the second headlamp of
Sample A shall be subjected to the test after which the mean of the absolute values recorded
in both samples shall not exceed 1.5 mrad.
However, if this value of 1.5 mrad on Sample A is not complied with, the two headlamps of
Sample B shall be subjected to the same procedure and the value of Δr for each of them shall
not exceed 1.5 mrad.

Headlamps - Asymmetrical Passing/Driving Beam - Halogen Filament Lamps.