Regulation No. 19-03

Name:Regulation No. 19-03
Description:Front Fog Lamps.
Official Title:Uniform Provisions Concerning the Approval of: Power-driven Vehicle Front Fog Lamps.
Country:ECE - United Nations
Date of Issue:1974-08-22
Amendment Level:03 Series, Supplement 4
Number of Pages:76
Vehicle Types:Agricultural Tractor, Bus, Car, Component, Heavy Truck, Light Truck, Motorcycle
Subject Categories:Prior Versions
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Keywords:

front, fog, lamp, regulation, light, approval, lamps, test, paragraph, annex, requirements, amendments, series, case, line, source, force, tests, approved, figure, type, cut-off, led, photometric, samples, lens, accordance, number, class, device, beam, date, entry, module, position, sample, sources, control, voltage, filament, measured, mark, vehicle, production, conformity, material, vertical, part, system, plastic

Text Extract:

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E/ECE/324
) Rev.1/Add.18/Rev.6/Amend.5
E/ECE/TRANS/505 )
June 21, 2014
STATUS OF UNITED NATIONS REGULATION
ECE 19-03
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
POWER-DRIVEN VEHICLE FRONT FOG LAMPS
Incorporating:
Supplement 6 to the 02 series of amendments
Date of Entry into Force: 15.01.97
Supplement 7 to the 02 series of amendments
Date of Entry into Force: 27.04.98
Supplement 8 to the 02 series of amendments
Date of Entry into Force: 06.02.99
Supplement 9 to the 02 series of amendments
Date of Entry into Force: 23.03.00
Supplement 10 to the 02 series of amendments
Date of Entry into Force: 04.07.06
Supplement 11 to the 02 series of amendments
Date of Entry into Force: 10.10.06
Corr. 1 of 02.08.07 to Supplement 11 to the 02 series of amendments Date of Entry into Force: 26.06.07
Supplement 12 to the 02 series of amendments
Date of Entry into Force: 11.06.07
Supplement 13 to the 02 series of amendments
Date of Entry into Force: 11.07.08
03 series of amendments
Date of Entry into Force: 11.07.08
Corr. 1 of 08.04.08 to the 03 series of amendments
Date of Entry into Force: 11.07.08
Corr. 2 of 15.01.09 to the 03 series of amendments
Date of Entry into Force: 12.11.08
Corr. 3 of 30.04.09 to the 03 series of amendments
Date of Entry into Force: 10.03.09
Corr. 4 to the 03 series of amendments
Dated: 03.03.10
Corr. 5 to the 03 series of amendments
Dated: 16.06.10
Corr. 1 to Revision 5 of the 03 series of amendments
Dated: 28.04.11
Supplement 1 to the 03 series of amendments
Date of Entry into Force: 15.10.08
Supplement 2 to the 03 series of amendments
Date of Entry into Force: 19.08.10
Supplement 3 to the 03 series of amendments
Date of Entry into Force: 26.07.12
Supplement 4 to the 03 series of amendments
Date of Entry into Force: 10.06.14

REGULATION NO. 19
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF
POWER-DRIVEN VEHICLE FRONT FOG LAMPS
CONTENTS
REGULATION
Introduction
0. Scope
1. Definitions
2. Application for approval
3. Markings
4. Approval
5. General specifications
6. Illumination
7. Colour
8. Determination of discomfort (dazzle)
9. Modifications of the type of front fog lamp and extension of approval
10. Conformity of production
11. Penalties for non-conformity of production
12. Production definitely discontinued
13. Names and addresses of technical services responsible for conducting approval tests, and
of Administrative Departments
14. Transitional provisions

REGULATION NO. 19
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF
POWER-DRIVEN VEHICLE FRONT FOG LAMPS
INTRODUCTION
This Regulation applies to front fog lamps, which may incorporate lenses of glass or
plastic material. It incorporates two distinct classes.
The original front fog lamp, Class "B" since inception, has been updated to incorporate the
angular coordinate system with an amendment to the values in the relevant photometric
table. With this class, only light sources as specified in Regulation No. 37 are allowed.
The Class "F3" is designed to increase photometric performance. In particular the beam
width and the minimum luminous intensities below the H-H line (Paragraph 6.4.3.) have
been increased whilst controls on the maximum intensity in the foreground are introduced.
Above the H-H line, the intensity of the veiling light is reduced to improve visibility.
Additionally this class may provide adaptive beam patterns where the performance is varied
according to the visibility conditions.
The introduction of the Class "F3" provides for requirements that are amended to be similar
to those of a headlamp as follows:
(a)
The photometric values are specified as luminous intensities using the angular
coordinate system.
(b) Light sources can be selected according to the provisions of Regulation No. 37
(Incandescent filament light sources) and Regulation No. 99 (gas discharge light
sources). Light emitting diode (LED) modules and distributed lighting systems may
also be used.
(c)
(d)
The cut-off and the gradient definitions.
The photometric requirements permit the use of asymmetrical beam distributions.
0. SCOPE
This Regulation applies to front fog lamps for vehicles of Categories L , L , L , L , M, N,
and T

2. APPLICATION FOR APPROVAL
2.1. The application for approval shall be submitted by the holder of the trade name or mark or
by his duly accredited representative.
2.2. The application relating to each type of front fog lamp shall be accompanied by:
2.2.1. Drawings in triplicate in sufficient detail to permit identification of the type and representing a
frontal view of the front fog lamp, with the relevant details of the optical components if any,
and the cross-section; the drawings shall indicate the space reserved for the approval mark;
2.2.1.1. If the front fog lamp is equipped with an adjustable reflector, an indication of the mounting
position(s) of the front fog lamp in relation to the ground and the longitudinal median plane
of the vehicle, if the front fog lamp is for use in that (those position(s) only;
2.2.2. For the test of plastic material of which the lenses are made:
2.2.2.1. Thirteen lenses;
2.2.2.1.1. Six of these lenses may be replaced by six samples of material at least 60 × 80mm size,
having a flat or convex outer surface and a substantially flat area (radius of curvature not
less than 300mm) in the middle measuring at least 15 × 15mm);
2.2.2.1.2. Every such lens or sample of material shall be produced by the method to be used in mass
production;
2.2.2.1.3. A reflector to which the lenses can be fitted in accordance with the manufacturer's
instructions.
2.2.3. The materials making up the lenses and coatings, if any, shall be accompanied by the test
report of the characteristics of these materials and coatings if they have already been
tested.
2.3. In case of Class B front fog lamps:
2.3.1. A brief technical specification including the category of filament lamp used as listed in
Regulation No. 37 and its series of amendments in force at the time of application for type
approval, even if the filament lamp cannot be replaced;
2.3.2. Two samples of each type of front fog lamp, one sample intended for the installation on the
left side of the vehicle and one sample intended for the installation of the right side of the
vehicle.

2.4.8. In the case of an approval of a front fog lamp according to Paragraph 2.4.8. and/or
according to Paragraph 5.9. containing plastic lenses and/or having inner optical parts made
from plastic, which have already been tested:
The materials making up the lenses, coatings or optical inner parts, if any, shall be
accompanied by the test report(s) on material testing against UV-radiation.
2.4.9. Two samples of each type of front fog lamp, one sample intended for the installation on the
left side of the vehicle and one sample intended for the installation on the right side of the
vehicle; or a matched pair of front fog lamps.
2.4.10. One light source control gear, if applicable.
2.4.11. On variable intensity control or a generator providing the same signals, if applicable.
2.5. The Competent authority shall verify the existence of satisfactory arrangements for ensuring
effective control of the conformity of production before type approval is granted.
3. MARKINGS
3.1. The samples of a type of front fog lamp distributed lighting system which are submitted for
approval shall clearly, legible and indelible bear:
(a)
(b)
the trade name or mark of the applicant,
marking indicating the class of the front fog lamp,
and in case of Class F3 front fog lamps:
(a)
the LED module or light generator specific identification code, if any.
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 3; these spaces shall be
indicated on the drawings referred to in Paragraph 2.2.1.
3.3. The approval marking shall be placed on an inner or outer part (transparent or not) of the
device which can not be separated from the transparent part of the device emitting light; in
the case of a distributed lighting system with outer lens built in the light-guide, this condition
is deemed satisfied if the approval marking is placed at least on the light-generator and on
the light-guide or on its protective shield. In any case the marking shall be visible when the
device is fitted on the vehicle, at least when a movable part such as the hood or boot lid or a
door is opened.
3.4. In case of Class F3 front fog lamps:
3.4.1. In case of a distributed lighting system, the light-generator(s) shall bear the marking of the
rated voltage and wattage and in the case that the electronic control gear is not part of the
device the light-generator(s) shall bear the trade name or mark of its manufacturer and the
part number.
3.4.2. In case of lamps with LED module(s) the lamp shall bear the marking of the rated voltage,
rated wattage and the light source module specific identification code.

4.2. Composition of the Approval Mark
The approval mark shall consist of:
4.2.1. An international approval mark, comprising of:
4.2.1.1. A circle surrounding the Letter 'E' followed by the distinguishing number of the country which
has granted approval;
4.2.1.2. The approval number prescribed in Paragraph 4.1.3..
4.2.2. The following additional symbol (or symbols):
4.2.2.1. On front fog lamps meeting the requirements of this Regulation, in the case of:
(a)
(b)
Class B; the letter "B"
Class F3; the symbol "F"
4.2.2.2. On front fog lamps incorporating a lens of plastic material the group of Letters "PL" to be
affixed near the symbols prescribed in Paragraph 4.2.2.1.;
4.2.2.3. In every case the relevant operating mode used during the test procedure according to
Paragraph 1.1.1. of Annex 5 and the permitted voltages according to Paragraph 1.1.2. of
Annex 5 shall be stipulated on the approval forms and on the communication forms
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:
4.2.2.3.1. On units meeting the requirements of this Regulation which are so designed that the
filament(s) of one function shall not be lit simultaneously with that of any function with which
it may be reciprocally incorporated, an oblique stroke (/) shall be placed behind the symbol
in the approval mark of such function.
4.2.2.3.2. However, if only the front fog lamp and the passing lamp shall not be lit simultaneously, the
oblique stroke shall be placed behind the fog lamp symbol, this symbol being placed either
separately or at the end of a combination of symbols.

4.3.2.3. 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.
4.3.2.4. 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.
4.3.2.5. Annex 3, Figure 3, to this Regulation gives examples of arrangements of approval marks for
grouped, combined or reciprocally incorporated lamps with all the above-mentioned
additional symbols.
4.3.3. In the case of lamps, the lens of which is used for different types of front fog lamps and
which may be reciprocally incorporated or grouped with other lamps, the provisions in
Paragraph 4.3.2. are applicable.
4.3.3.1. In addition, where the same lens is used for different types of lamps, it may bear the
different approval marks relating to the different types of front fog lamps or units of lamps,
provided that the main body of the front fog lamp, even if it cannot be separated from the
lens, also comprises the space described in Paragraph 3.2. and bears the approval marks
of the actual functions.
If different types of front fog lamps comprise the same main body, the latter may bear the
different approval marks.
4.3.3.2. Annex 3, Figure 4, to this Regulation gives examples of arrangements of approval marks
relating to the above case.
5. GENERAL SPECIFICATIONS
5.1. Each sample of front fog lamp submitted in conformity with Paragraph 2.2. shall meet the
specifications set forth in Paragraphs 6. and 7. of this Regulation.
5.2. The front fog lamps shall be so designed and constructed that in normal use, despite the
vibrations to which they may then be subjected, their satisfactory operation continues to be
ensured and they retain the characteristics prescribed by this Regulation. The correct
position of the lens shall be clearly marked and the lens and reflector shall be so secured as
to prevent any rotation during use. Conformity with the requirements of this paragraph shall
be verified by visual inspection and, where necessary, by a trial fitting.
5.2.1. Front fog lamps shall be fitted with a device enabling them to be so adjusted on the vehicles
as to comply with the rules applicable to them. Such a device need not be fitted on units in
which the reflector and the lens cannot be separated, provided the use of such units is
confined to vehicles on which the front fog lamp setting can be adjusted by other means.
Where a front fog lamp and another front lamp, each equipped with its own filament source,
are assembled to form a composite unit, the adjusting device shall enable each optical
system to be individually adjusted.
5.2.2. These provisions shall not apply to front lamp assemblies whose reflectors are indivisible.
for this type of assembly the requirements of Paragraph 6.3.4. or 6.4.3. (as appropriate)
shall apply.

5.10. In case of front fog lamps with light source(s) having a total objective luminous flux that
exceeds 2 000 lumen, a reference shall be made in Paragraph 10. of the communication
form in Annex 1.
5.11. If the lens of the front fog lamp is made of plastic material tests shall be done according to
the requirements in Annex 6.
5.11.1. The UV resistance of light transmitting components located inside the front fog lamp and
made of plastic material shall be tested according to Annex 6, Paragraph 2.7.
5.11.2. The test in Paragraph 5.11.1 is not necessary if low-UV type light sources as specified in
regulation No. 99 or in Annex 12 of this Regulation are used, or if provisions are taken, to
shield the relevant lamp components from UV radiation, e.g. by glass filters.
5.12. The front fog lamp and its ballast system or light source control gear shall not generate
radiated or power line disturbances, which cause a malfunction of other electric/electronic
systems of the vehicle.
5.13. Front fog lamps, designed to operate permanently with an additional system to control the
intensity of the light emitted, or which are reciprocally incorporated with another function,
using a common light source, and designed to operate permanently with an additional
system to control the intensity of the light emitted, are permitted.
5.14. In the case of Class F3 the sharpness and linearity of the cut-off shall be tested according to
the requirements of Annex 9.
6. ILLUMINATION
6.1. Front fog lamps shall be so designed as to provide illumination with limited dazzle.
6.2. The luminous intensity produced by the front fog lamp shall be measured at 25 m distance
by means of a photoelectric cell having a useful area comprised within a square of 65mm
side.
The point HV is the centre-point ot the coordinate system with a vertical polar axis. Line h is
the horizontal through HV (see Annex 4 to this Regulation).
6.3. In the case of Class B front fog lamps:
6.3.1. A colourless standard (étalon) filament lamp as specified in regulation No. 37, of the
category specified by the manufacturer, which may be supplied by the manufacturer or
applicant, shall be used.
6.3.1.1. During the testing of the front fog lamp the power supply for this filament lamp shall be
regulated so as to obtain the reference luminous flux as indicated in the relevant data sheet
of Regulation No. 37.
6.3.1.2. During the testing of a front fog lamp where the filament lamp cannot be replaced, the
voltage at the terminals of the front fog lamp shall be regulated at 12.0V.

6.4. In the case of Class F3 front fog lamps.
6.4.1. Depending on the light source, the following conditions shall apply.
6.4.1.1. In the case of replaceable filament light sources:
6.4.1.1.1. The front fog lamp shall comply with the requirements of Paragraph 6.4.3. of this Regulation
with at least one complete set of appropriate standard (etalon) lamps, which may be
supplied by the manufacturer or applicant.
In the case of filament lamps operating directly under vehicle voltage system conditions:
The front fog lamp shall be checked by means of colourless standard (etalon) filament
lamps as specified in Regulation No. 37.
During the testing of the front fog lamp, the power supply to the filament lamp(s) shall be
regulated so as to obtain the reference luminous flux as indicated on the relevant data sheet
of Regulation No. 37.
6.4.1.1.2. In the case of a system that uses a light source control gear being part of the lamp, the
voltage declared by the applicant shall be applied to the input terminals of that lamp. The
measured photometric value shall be multiplied by a factor of 0.7 prior to checking for
compliance.
6.4.1.1.3. In the case of a system that uses a light source control gear not being part of the lamp the
voltage declared by the applicant shall be applied to the input terminals of that light source
control gear. The test laboratory shall require from the applicant the special light source
control gear needed to supply the light source and the applicable functions. The
identification of that light source control gear if applicable and/or the voltage applied
including the tolerances shall be noted in the communication form in Annex 1 of this
Regulation. The measured photometric value shall be multiplied by a factor of 0.7 prior to
checking for compliance.
6.4.1.2. In the case of a gas-discharge light source:
A standard light source shall be used as specified in Regulation No. 99, which has been
aged during at least 15 cycles, in accordance with Annex 4, Paragraph 4. of Regulation
No. 99.
During testing of the front fog lamp the voltage at the terminals of the ballast shall be
regulated to maintain 13.5V for a 12V system, or at the vehicle voltage as specified by the
applicant, with a tolerance of ±0.1V.
The measured luminous intensity values shall be multiplied by a factor of 0.7 prior to the
check for compliance.
The objective luminous flux of the gas-discharge light source may differ from that specified
in Regulation No. 99. In this case, the luminous intensity values shall be corrected
accordingly.

6.4.3. Photometric Requirements
When so adjusted, the front fog lamp shall meet the photometric requirements in the table
below (refer also to Annex 4, Paragraph 2.2. of this Regulation):
Designated
lines or zones
Vertical position
above h +
below h -
Horizontal
position
left of v: -
right of v: +
Point 1, 2 +60° ±45°
Point 3, 4 +40° ±30°
Luminous
intensity
(in cd)
To comply
Point 5, 6 +30° ±60°
Point 7, 10 +20° ±40°
60 maximum All points
Point 8, 9 +20° ±15°
Line 1 +8° -26° to +26° 90 maximum All line
Line 2 +4° -26° to +26° 105 maximum All line
Line 3 +2° -26° to +26° 170 maximum All line
Line 4 +1° -26° to +26° 250 maximum All line
Line 5 0° -10° to +10° 340 maximum All line
Line 6 -2.5° -10° to +10° 2,000 minimum All line
Line 7 -6.0° -10° to +10°
<50% of maximum
on line 6
Line 8L and R -1.5° to -3.5° -22° and +22° 800 minimum
Line 9L and R -1.5° to -4.5° -35° and +35° 320 minimum
All line
One or more
points
One or more
points
Zone D -1.5° to -3.5° -10° to +10° 8,400 maximum Whole zone
6.4.3.1. The illumination shall be measured either with white light or coloured light as prescribed by
the applicant for use of the fog lamp in normal service. Variations in homogeneity
detrimental to satisfactory visibility in the zone above the line 5 from 10° left to 10° right are
not permitted.
6.4.3.2. At the request of the applicant, two front fog lamps constituting a matched pair
corresponding to Paragraph 4.2.2.5. may be tested separately. In this case the specified
requirements for lines 6, 7, 8, 9 and the Zone D in the table in Paragraph 6.4.3. apply to half
the sum of readings of the right-hand and left-hand side front fog lamp. However each of the
two front fog lamps shall meet at least 50% of the minimum value required for line 6.
Additionally, each of the two front fog lamps that constitute the matched pair corresponding
to Paragraph 4.2.2.5. are only required to meet the requirements of line 6 and line 7 from
5° inwards to 10° outwards.

7. COLOUR
The colour of the light emitted by the front fog lamp shall be either white or selective yellow
by choice of the applicant. The selective yellow colour, if any, of the beam may be obtained
either by the colour of the light source or by the lens of the front fog lamp or by any other
suitable means.
7.1. The colorimetric characteristics of the front fog lamp shall be measured with voltages as
defined in Paragraphs 6.3. and 6.4.
8. DETERMINATION OF DISCOMFORT (DAZZLE)
The discomfort dazzle caused by the front fog lamp shall be determined.
9. MODIFICATIONS OF THE TYPE OF FRONT FOG LAMP AND EXTENSION OF
APPROVAL
9.1. Every modification of the type of front fog lamp shall be notified to the administrative
department which approved the type of front fog lamp. The department may then either:
9.1.1. Consider that the modifications made are unlikely to have an appreciable adverse effect and
that in any case the front fog lamp still complies with the requirements;
or
9.1.2. require a further test report from the technical service responsible for conducting the tests.
9.2. Confirmation or refusal of approval, specifying the alterations, shall be communicated by the
procedure specified in Paragraph 4.1.4. to the Parties to the Agreement which apply this
Regulation.
9.3. The competent authority issuing the extension of approval shall assign a series number 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 1 to this
Regulation.

10.4.4. 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 to this Regulation with
the tolerances as prescribed in Annex 2 to this Regulation.
10.4.5. 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.
10.5. Front fog lamps with apparent defects are disregarded.
11. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
11.1. The approval granted in respect of a type of front fog lamp pursuant to this Regulation may
be withdrawn if the requirements set forth above are not met, or if a front fog lamp bearing
the approval mark does not conform to the type approved.
11.2. 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 1 to this
Regulation.
12. PRODUCTION DEFINITELY DISCONTINUED
If the holder of the approval completely ceases to manufacture a front fog lamp 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 which apply this Regulation, by means of a
communication form conforming to the model in Annex 1 to this Regulation.
13. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR
CONDUCTING APPROVAL TESTS, AND OF ADMINISTRATIVE DEPARTMENTS
The Parties to the 1958 Agreement which apply 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 extension or refusal or withdrawal of approval, or
production definitely discontinued, issued in other countries, are to be sent.
14. TRANSITIONAL PROVISIONS
14.1. In the case of Class B front fog lamps:
14.1.1. From the date of entry into force of the 03 series of amendments to this Regulation no
Contracting Party applying it shall refuse to grant approvals under this Regulation as
amended by the 02 or series of amendments.
14.1.2. As from 24 months after the date of entry into force of the 03 series of amendments,
Contracting Parties applying this Regulation shall grant approvals only if Class B front fog
lamps meet the requirements of this Regulation as amended by the 03 series of
amendments.

ANNEX 1
COMMUNICATION FORM
(Maximum format : A4 (210 x 297mm))
issued by:
Name of administration:
.....................................
.....................................
.....................................
Concerning
APPROVAL GRANTED
APPROVAL EXTENDED
APPROVAL REFUSED
APPROVAL WITHDRAWN
PRODUCTION DEFINITELY DISCONTINUED
of a type of front fog lamp pursuant to Regulation No. 19
Approval No. .................................................. Extension No. ................................
1. Trade name or mark of the device: ............................................................................................
2. Type of the device: ....................................................................................................................
3. Manufacturer's name for the type of device: ..............................................................................
4. Manufacturer's name and address: ..........................................................................................
5. If applicable, name and address of manufacturer's representative: ..........................................
6. Submitted for approval on: .........................................................................................................
7. Technical Service responsible for conducting approval tests: ...................................................
8. Date of report issued by that service: ........................................................................................
9. Number of report issued by that service: ...................................................................................

ANNEX 2
TOLERANCE REQUIREMENTS FOR CONFORMITY OF PRODUCTION
CONTROL PROCEDURE
1. In the case of Class B front fog lamps:
1.1. When testing photometric performances of any front fog lamp chosen at random and
equipped with a standard filament lamp, no measured value may deviate unfavourably by
more than 20% from the value prescribed in this Regulation.
1.2.
For the periodic records, the reading is limited to points B50
and left and right bottom
corners of Zone D (see Figure 2 in Annex 4).
2. In the case of Class F3 front fog lamps:
2.1. When testing the photometric performances of any front fog lamp chosen at random
according to Paragraph 6.4. of this Regulation, no measured value of the luminous intensity
may deviate unfavourably by more than 20%.

ANNEX 3
EXAMPLES OF ARRANGEMENTS OF APPROVAL MARKS FOR
FRONT FOG LAMPS OF CLASS B
Figure 1
The device bearing the above approval marking is a fog lamp of Class "B" approved in the Germany (E1)
under number 221, in accordance with Regulation No. 19.
The number mentioned close to the symbol "B" indicates that the approval was granted in accordance
with the requirements of Regulation No. 19 as amended by the 03 series of amendments.
Figure 1 indicates that the device is a front fog lamp, which can be lit simultaneously with any other lamp
with which it may be reciprocally incorporated.
Figure 2a
Figure 2b

The vertical and horizontal lines indicate a schematic view of the shape of the light-signalling device.
These are not part of the approval mark.
The devices shown in Model A and Model B of Figure 3 bear the approval markings for a fog lamp
approved in Italy (E3) under number 17120, in accordance with Regulation No. 19.
The devices shown in Model C and Model D of Figure 3 bear the approval markings for a fog lamp
approved in the Netherlands (E4) under number 17122, in accordance with Regulation No. 19.
Note: The four examples shown in Figure 3 correspond to a lighting device bearing an approval mark
relating to:
A front position lamp approved in accordance with the 02 series of amendments to Regulation No.7;
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 101,250cd (as indicated by the number 30) approved
in accordance with the 00 series of amendments to Regulation No. 112 and incorporating a lens of
plastic material;
A front fog lamp approved in accordance with the 03 series of amendments to Regulation No. 19 and
incorporating a lens of plastic material;
A front direction indicator lamp of category 1a approved in accordance with the 02 series of
amendments to Regulation No. 6.
Figure 4
Lamp Reciprocally Incorporated with a Headlamp
The example in Figure 4 corresponds to the marking of a lens of plastic material intended for use 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 with a
maximum intensity comprised between 86,250 and 101,250cd,, approved in Sweden (E5) in accordance
with the requirements of Regulation No. 112 as amended by the 00 series of amendments, which is
reciprocally incorporated with a front fog lamp approved in accordance with the 03 series of amendments
to Regulation No. 19;

EXAMPLES OF ARRANGEMENTS OF APPROVAL MARKS FOR
FRONT FOG LAMPS OF CLASS "F3"
Figure 7
The device bearing the approval marking shown in Figure 7 is a fog lamp of Class "F3" approved in
Germany (E1) under number 221, in accordance with Regulation No. 19.
The number mentioned close to the symbol "F3" indicates that the approval was granted in accordance
with the requirements of Regulation No. 19 as amended by the 03 series of amendments.
The marking in Figure 7 indicates that the device is a front fog lamp, which can be lit simultaneously with
any other lamp with which it may be reciprocally incorporated.
The device bearing the approval marking shown in Figures 8a and 8b is a fog lamp of Class "F3", having
a plastic lens and approved in France (E2) under number 222, in accordance with Regulation No. 19.
The number mentioned close to the symbol "F3" indicates that the approval was granted in accordance
with the requirements of Regulation No. 19 as amended by the 03 series of amendments.

A front fog lamp approved in accordance with the 03 series of amendments to Regulation No. 19 and
incorporating a lens of plastic material;
A front direction indicator lamp of Category 1a approved in accordance with the 02 series of
amendments to Regulation No. 6.
The device bearing the approval marking in Models C and D in Figure 9 is a device approved in the
Netherlands (E4) under number 17122, in accordance with Regulation used and shows a slightly
different arrangement to that shown in Models A and B.
Lighting Device used Either as Front Fog Lamp or as Reversing Lamp
The device bearing the approval marking shown in Figure 10 is a lamp approved in Sweden (E5) under
number 17120 and 17122, in accordance with Regulation No. 19 and, in accordance with Regulation
No. 23 (reversing lamps):
Figure 10
One of the above-mentioned lamps approved as a single lamp can be used only as a front fog lamp or as
a reversing lamp.
Front Fog Lamp Reciprocally Incorporated with a Headlamp
The devices bearing the approval marking shown in Figure 11 have been approved in Belgium (E6)
under number 17120 or 17122, in accordance with the relevant Regulations.
Figure 11

Front Fog Lamps as a Matched Pair
The approval marking shown below identifies a front fog lamp carried out as a matched pair and meeting
the requirements of this Regulation. The device bearing the approval marking shown in Figure 14 is a
front fog lamp approved in Japan (E43) under number 321.
Figure 14

2. MEASURING GRID (see Figure 2.)
The measuring grid is symmetrical about the v-v line (see table in Paragraph 6.4.3. of this
Regulation). For simplicity the angular web is shown in the form of a rectangular grid.
2.1. In the case of front fog lamps of Class "B", the measuring grid is shown in Figure 2.
Figure 2
Light Distribution of the Class B Front Fog Lamp

ANNEX 5
TESTS FOR STABILITY OF PHOTOMETRIC PERFORMANCE OF FRONT FOG LAMPS IN
OPERATION (TESTS ON COMPLETE FRONT FOG LAMPS)
Once the photometric values have been measured according to the prescriptions of this Regulation, in
the point of maximum illumination in Zone D (E ) and in the point HV, a complete front fog lamp sample
shall be tested for stability of photometric performance in operation. "Complete front fog lamp" is the
complete lamp itself including those surrounding body parts and lamps, which could influence its thermal
dissipation.
The tests shall be carried out:
(a)
(b)
In a dry and still atmosphere at an ambient temperature of 23 °C ± 5 °C, the test sample being
mounted on a base representing the correct installation on the vehicle;
In case of replaceable light sources: using mass production filament light sources, which have
been aged for at least one hour, or mass production gas-discharge light sources, which have been
aged for at least 15 hours or mass produced LED modules which has been aged for at least
48 hours and cooled down to ambient temperatures before starting the tests as specified in this
Regulation. The LED modules supplied by the applicant shall be used.
The measuring equipment shall be equivalent to that used during headlamp type-approval tests.
The test sample shall be operated without being dismounted from or readjusted in relation to its test
fixture. The light source used shall be a light source of the category specified for that front fog lamp.

1.1.1.3. In the case of front fog lamp with a passing beam and one or more lighting functions (one of
them is a front fog lamp):
(a)
the front fog lamp shall be subjected to the following cycle until the time specified is
reached:
(i)
(ii)
15min, passing-beam light source(s) lit;
5min, all light source(s) lit.
(b)
(c)
if the applicant declares that the front fog lamp is to be used with only the passing
beam lit or only the front fog lamp lit at a time, the test shall be carried out in
accordance with this condition, successively activating the passing beam half of the
time and the front fog lamp for half of the time specified in Paragraph 1.1. The driving
beam(s) is (are) subjected to a cycle of 15min off and 5min lit for half of the time and
during the operation of the passing beam;
if the applicant declares that the front fog lamp can be used with only the passing
beam or only the driving beam(s) lit or only the front fog lamp lit at a time, the
test shall be carried out in accordance with this condition, successively activating
the passing beam one third of the time, the driving beam(s) one third of the time and
the front fog lamp for one third of the time specified in Paragraph 1.1.

1.1.3. Test Results
1.1.3.1. Visual inspection
Once the front fog lamp has been stabilised to the ambient temperature, the front fog lamp
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 front fog lamp lens or the external lens, if any, shall be noticeable.
1.1.3.2. Photometric test
To comply with the requirements of this Regulation, the following photometric values shall
be verified in the following points:
In case of Class "B" front fog lamps: at point HV and the point of Imax in Zone D.
In case of Class"F3" front fog lamps: on line 5 at point h = 0 and the point of Imax in Zone D.
Another aiming may be carried out to allow for any deformation of the front fog lamp base
due to heat (the change of the position of the cut-off line is covered in Paragraph 2.).
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 Front Fog Lamp
The front fog lamp, having been tested as specified in Paragraph 1.1. shall be operated for
one hour as described in Paragraph 1.1.1. Following preparation, as prescribed in
Paragraph 1.2.1. it shall be checked as prescribed in Paragraph 1.1.3.
1.2.1. Preparation of the Front Fog Lamp
1.2.1.1. Test mixture
1.2.1.1.1. For front fog lamps with the outside lens in glass:
The mixture of water and a polluting agent to be applied to the front fog lamp shall be
composed of:
(a)
(b)
9 parts by weight of silica sand with a particle size of 0-100 μm;
1 part by weight of vegetal carbon dust (beech wood) with a particle size of 0-100 μm;
(c) 0.2 part by weight of NaCMC, , and
(d)
an appropriate quantity of distilled water, with a conductivity of S < l μS/m.
The mixture must not be more than 14 days old.

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 light source, which has been aged for at least one hour, the front
fog lamp shall be operated 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 1.1.2.). The position of the cut-off line between a point situated 3.0° left and a
point situated 3.0° right of the line VV (see Annex 4 of the Regulation) shall be verified after
3min (r3) and 60min (r60) respectively of 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 acceptable when
the absolute value ∆ r = | r - r | recorded on this front fog lamp is not more than 2 mrad
(∆ r ≤ 2 mrad).
2.2.2. However, if this value is more than 2 mrad but not more than 3 mrad (2 mrad < ∆r ≤ 3 mrad)
a second front fog lamp shall be tested as described in Paragraph 2.1. This shall be done
after the front fog lamp has been subjected to three consecutive cycles as described below,
in order to stabilise the position of the mechanical parts of the front fog lamp that is mounted
on a base representative of the correct installation on the vehicle:
(a)
(b)
Operation of the front fog lamp for one hour. (The voltage shall be adjusted as
specified in Paragraph 1.1.2.).
Period of rest for one hour.
2.2.3. The front fog lamp type shall be considered acceptable if the mean value of the absolute
values ∆ rI measured on the first sample and ∆ rII measured on the second sample is not
more than 2 mrad.
(∆ r + ∆ r ) / 2 ≤ 2 mrad.

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 under the conditions as specified in Paragraph 6.3. or
6.4. of this Regulation, at the following points:
In the case of Class "B" front fog lamps:
(a)
at point HV and
(b) point h = 0, v = 2° D in Zone D.
In the case of Class "F3" front fog lamps:
(a)
intersection VV line with line 6 and
2.1.2.2. Results
(b) intersection VV line with line 4."
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 wavelengths 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 1/min.
The samples shall be sprayed with distilled water of conductivity lower than 1 μS/m at a
temperature of 23 °C ± 5 °C, in accordance with the following cycle:
spraying: 5min;
drying: 25min.

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 5min 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 1min 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 = (T2 - T3)/T ,
measured on the three samples according to the procedure described in Appendix 2 to this
Annex shall not exceed 0.010 (∆tm ≤010).
2.4. Resistance to Mechanical Deterioration
2.4.1. Mechanical Deterioration Method
2.4.2. Results
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.
After this test, the variations:
in transmission: ∆t = (T2 - T3)/T
and in diffusion: ∆d = (T5 - T4)/T
shall be measured according to the procedure described in Appendix 2 in the area specified
in Paragraph 2.2.4.1.1. The mean value of the three samples shall be such that:
∆t ≤0.010;
∆d ≤0.050.

2.7.1.2. After 1,500h of continuous exposure, the colorimetric specifications of the transmitted light
must be met with a new standard gas-discharge light source, and the surface of the
samples shall be free of cracks, scratches, scaling or deformation.
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 front fog lamps selected at random.

ANNEX 6 - 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 β/2 = 17.4 × 10 rd is limited by a
diaphragm DT with an opening of 6mm 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 ß/2 = 14°.
An annular diaphragm D with angles a/2 = 1° and a
plane of the lens L .
/2 = 12° is placed in an image focal
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 L D and the focal length F of the lens L shall be so chosen that the image
of D 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:

ANNEX 6 - APPENDIX 3
SPRAY TESTING METHOD
1. TEST EQUIPMENT
1.1. Spray Gun
The spray gun used shall be equipped with a nozzle 1.3mm in diameter allowing a liquid
flow rate of 0.24 ± 0.02 1min at an operating pressure of 6.0bar -0, +0.5bar.
Under these operation conditions the fan pattern obtained shall be 170mm ± 50mm in
diameter on the surface exposed to deterioration, at a distance of 380mm ± 10mm from the
nozzle.
1.2. Test Mixture
2. TEST
The test mixture shall be composed of:
Silica sand of hardness 7 on the Mohs scale, with a grain size between 0 and 0.2mm and an
almost normal distribution, with an angular factor of 1.8 to 2;
Water of hardness not exceeding 205g/m for a mixture comprising 25g of sand per litre of
water.
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:
∆ d = (T5 - T4)/T ≤0.0250 ± 0.0025
Several reference samples may be used to check that the whole surface to be tested has
deteriorated homogeneously.

ANNEX 7
MINIMUM REQUIREMENTS FOR CONFORMITY OF PRODUCTION
CONTROL PROCEDURE
1. GENERAL
1.1. The conformity requirements shall be considered to be 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 front fog lamps
shall not be contested if the photometric performances according to the requirements in
Annex 2 to this Regulation depending on the prevailing class of front fog lamps are satisfied.
If the results of the tests described above do not meet the requirements, tests on the front
fog lamp shall be repeated using light sources as specified in Paragraphs 6.3. or 6.4. of this
Regulation, as appropriate.
1.2.1. If the results of the tests described above do not meet the requirements, the alignment of
the front fog lamp may be changed, provided that the axis of the beam is not displaced
laterally by more than 0.5° to the right or left and not by more than 0.2° up or down. In the
re-aimed position all photometric requirements shall be met.
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:
1.3.1. One of the sampled front fog lamps 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.
1.3.2. The front fog lamp shall be considered as acceptable if ∆r does not exceed 3.0 mrad. If this
value exceeds 3.0 mrad but is not more than 4.0 mrad, a second front fog lamp shall be
subjected to the test after which the mean of the absolute values recorded on both samples
shall not exceed 3.0 mrad.
1.4. The chromaticity coordinates shall comply with Paragraph 7. of this Regulation. The
photometric performance of a front fog lamp emitting an enlarged selective yellow light when
equipped with a colourless light source 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 front fog lamp 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 nonconformity 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.

ANNEX 8
MINIMUM REQUIREMENTS FOR SAMPLING BY AN INSPECTOR
1. GENERAL
1.1. The conformity requirements shall be considered to be 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 front fog lamps
shall not be contested if the photometric performances according to the requirements in
Annex 2 to this Regulation depending on the prevailing class of front fog lamps are satisfied.
If the results of the tests described above do not meet the requirements, tests on the front
fog lamp shall be repeated using light sources as specified in Paragraphs 6.3. or 6.4. of this
Regulation, as appropriate.
1.2.1. If the results of the tests described above do not meet the requirements, the alignment of
the front fog lamp may be changed, provided that the axis of the beam is not displaced
laterally by more than 0.5° to the right or left and not by more than 0.2° up or down. In the
re-aimed position all photometric requirements shall be met.
If the specified luminous intensity requirements are not met, a re-aim of the cut-off position
within ±0.5° vertical and/or ±2° horizontal is allowed. In the re-aimed position all photometric
requirements shall be met.
If vertical adjustment cannot be performed repeatedly to the required position within the
allowed tolerances, the instrumental method as specified in Annex 9 to this Regulation shall
be applied and the quality of cut-off be tested on one sample.
1.2.2. Front fog lamps with obvious defects are disregarded.
1.3. The chromaticity coordinates shall comply with Paragraph 7. of this Regulation. The
photometric performance of a front fog lamp emitting an enlarged selective yellow light when
equipped with a colourless light source shall be the values contained in this Regulation
multiplied by 0.84.

2.3. Approval Withdrawn
2.3.1. sample A
2.3.2. sample B
Conformity shall be contested and Paragraph 11. applied if, following the sampling
procedure in Figure 1 of this Annex, the deviations of the measured values of the front fog
lamps are:
A4:
one front fog lamp
not more than
20%
one front fog lamp
more than
30%
A5: both front fog lamps more than 20%
B4:
in the case of A2
one front fog lamp
more than
0%
but
not more than
20%
one front fog lamp
more than
20%
B5: in the case of A2
both front fog lamps more than 20%
B6:
in the case of A2
one front fog lamp
0%
one front fog lamp
more than
30%
3. REPEATED SAMPLING
In the cases of A3, B2, B3 a repeated sampling, third sample C of two front fog lamps and
fourth sample D of two front fog lamps, selected from stock manufactured after alignment, is
necessary within two months time after the notification.
3.1. Conformity is not Contested
3.1.1. Following the sampling procedure shown in Figure 1 of this Annex the conformity of
mass-produced front fog lamps shall not be contested if the deviations of the measured
values of the front fog lamps are:
3.1.1.1. sample C
3.1.1.2. sample D
C1: one front fog lamp 0%
one front fog lamp not more than 20%
C2:
both front fog lamps
more than
0%
but
not more than
20%
go to sample D
D1: in the case of C2
both front fog lamps 0%

Figure 1

3.2. Vertical Adjustment
After horizontal adjustment of the front fog beam according to Paragraph 3.1., the vertical
adjustment shall be performed in such a way that the cut-off line is moved upwards from the
lower position until it is situated on the v-v line at 1° below the h-h line. If the horizontal part
is not straight but slightly curved or inclined, the cut-off line shall not exceed the vertical
range formed by two horizontal lines which are situated between 3° left and right of the v-v
line at 0.2° above and below the nominal position of the cut-off (see Figure 1).
3.2.1. When the vertical positions of three attempts to adjust the cut-off differ by more than 0.2°,
the horizontal part of the cut-off line is assumed not to provide sufficient linearity or
sharpness for performing visual adjustment. In this case the quality of cut-off shall be tested
instrumentally for compliance with requirements as follows.
4. MEASUREMENT OF THE QUALITY OF CUT-OFF
4.1. Measurements shall be performed by vertically scanning through the horizontal part of the
cut-off line in angular steps not exceeding 0.05°.
At either a measurement distance of 10m and a detector with a diameter of approximately
10mm.
Or at a measurement distance of 25m and a detector with a diameter of approximately
30mm.
The measurement of the cut-off quality shall be considered acceptable if the requirements of
the Paragraphs 4.1.1. to 4.1.3. of this Annex shall comply with at least one measurement at
10 m or 25 m.
The measuring distance at which the test was determined shall be recorded in Paragraph 9.
of the communication form in Annex 2 of this Regulation.
The scanning is performed from downwards upwards through the cut-off line along the
vertical lines at -2.5° and +2.5° from the v-v line. When so measured, the quality of the cutoff
line shall meet the following requirements:
4.1.1. Not more than one cut-off line shall be visible.
4.1.2. Sharpness of cut-off:
4.1.3. Linearity
If scanned vertically through the horizontal part of the cut-off line along vertical lines at ±1°
from the v-v line, the maximum value measured for the sharpness factor G of the cut-off line
shall not be less than 0.08 where:
G = (log E - log E )
The part of the cut-off line which serves vertical adjustment shall be horizontal from 3° left to
3° right of the v-v line. This requirement is satisfied, if the vertical positions of the inflection
points according to Paragraph 3.2. at 3° left and right of the v-v line do not deviate by more
than ±0.20°.

ANNEX 10
OVERVIEW OF OPERATIONAL PERIODS CONCERNING TEST FOR STABILITY OF
PHOTOMETRIC PERFORMANCE

ANNEX 11
CENTRE OF REFERENCE
Diameter = a = 2mm minimum
This optional mark of the centre of reference shall be positioned on the lens at its intersection with the
reference axis of the front fog lamp.
The above drawing represents the mark of the centre of reference as projected on a plane substantially
tangential to the lens about the centre of the circle. The lines constituting this mark may either be solid or
dotted.

3. TEST CONDITIONS
3.1. Application and Relaxation
3.1.1. All samples shall be tested as specified in Paragraph 4.;
3.1.2. The type of light sources shall be as defined in Regulation No. 48 Paragraph 2.7.1., in
particular with regard to the element of visible radiation. Other types of light sources are not
permitted.
3.1.3. Operating Conditions
LED module or light-generator operating conditions:
3.1.3.1. all samples shall be tested under the conditions as specified in Paragraph 6.4.1.4. of this
Regulation.
3.1.3.2. if not specified differently in this Annex, LED modules or light-generators shall be tested
inside the front fog lamp as submitted by the manufacturer.
3.1.4. Ambient Temperature
For the measurement of electrical and photometric characteristics, the front fog lamp shall
be operated in dry and still atmosphere at an ambient temperature of 23 °C ± 5 °C.
3.1.5. In case of light-generators:
3.1.5.1. Power supply
The power supply used for the starting and run-up tests shall be sufficient to secure the
quick rise of the high current pulse.
3.1.5.2. Burning position
3.2. Ageing
The burning position shall be as indicated by the applicant. Ageing and testing positions
shall be identical. If the lamp is accidentally operated in the wrong direction, it shall be
re-aged before measurements begin. During ageing and measurements no electrically
conducting objects shall be allowed within a space as indicated by the applicant. Moreover
stray magnetic fields shall be avoided.
3.2.1. LED modules or light-generators shall be aged.
3.2.2. The tests below shall be carried out after ageing with the LED module(s) or
light-generator(s) supplied by the submitted electronic light source control-gear at test
voltage.
3.2.3. LED Module(s)
Upon the request of the applicant the LED module shall be operated for 15h and cooled
down to ambient temperature before starting the tests as specified in this Regulation.

4.5. Colour Rendering
4.5.1. Red Content
In addition to measurements as described in Paragraph 7. of part A or B to this Regulation,
the minimum red content of the light of a LED module or light-generator shall be such that:
k
=

E
( λ) V ( λ)

≥ 0.05

E
( λ) V ( λ)

where:
Ee (λ) (unit: W)
V(λ) (unit: l)
λ (unit: nm)
is the spectral distribution of the irradiance;
is the spectral luminous efficiency;
is the wavelength.
This value shall be calculated using intervals of one nanometre.
4.6. UV-radiation
The UV-radiation of the LED module or light-generator shall be such that:
k
=

E
( λ) S ( λ)

≤ 10
W / lm
k

E
( λ) V ( λ)

where:
S(λ)(unit: l) is the spectral weighting function;
km = 683lm/W is the maximum value of the luminous efficacy of radiation;
(For definitions of the other symbols see Paragraph 4.1.1.)

Front Fog Lamps.