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"BCOUNCIL DIRECTIVE
of 27 July 1976
on the approximation of the laws of the Member States relating to the end-outline marker lamps,
front position (side) lamps, rear position (side) lamps and stop lamps for motor vehicles and their
trailers
(76/758/EEC)
(OJ L 262, 27.9.1976, p. 54)
Amended by:
Official Journal
No page date
"A1 Act of Accession of Greece L 291 17 19.11.1979
"A2 Act of Accession of Spain and Portugal L 302 23 15.11.19851976L0758 — EN — 01.01.1986 — 002.001 — 1
COUNCIL DIRECTIVE
of 27 July 1976
on the approximation of the laws of the Member States relating to
the end-outline marker lamps, front position (side) lamps, rear
position (side) lamps and stop lamps for motor vehicles and their
trailers
(76/758/EEC)
THE COUNCIL OF THE EUROPEAN COMMUNITIES,
Having regard to the Treaty establishing the European Economic
Community, and in particular Article 100 thereof,
Having regard to the proposal from the Commission,
Having regard to the opinion of the European Parliament (1),
Having regard to the opinion of the Economic and Social Committee (2),
Whereas the technical requirements which motor vehicles must satisfy
pursuant to national laws relate inter alia to their end-outline marker
lamps, front position (side) lamps, rear position (side) lamps and stop
lamps;
Whereas those requirements differ from one Member State to another;
whereas it is therefore necessary that all Member States adopt the same
requirements either in addition to or in place of their existing rules, in
order, in particular, to allow the EEC type-approval procedure which was
the subject of Council Directive 70/156/EEC of 6 February 1970 on the
approximation of the laws of the Member States relating to the
type-approval of motor vehicles and their trailers (3), to be introduced
in respect of each type of vehicle;
Whereas in Directive 76/756/EEC (4), the Council laid down the
common requirements for the installation of lighting and light-signalling
devices on motor vehicles and their trailers;
Whereas a harmonized type-approval procedure for front position (side)
lamps, rear position (side) lamps and stop lamps makes it possible for
each Member State to check compliance with the common construction
and testing requirements and to inform the other Member States of its
findings by sending a copy of the component type-approval certificate
completed for each type of front position (side) lamp, rear position (side)
lamp and stop lamp; whereas the placing of an EEC component
type-approval mark on all lamps manufactured in conformity with the
approved type obviates any need for technical checks on these front
position (side) lamps, rear position (side) lamps and stop lamps in the
other Member States;
Whereas it is desirable to take into account the technical requirements
adopted by the UN Economic Commission for Europe in its Regulation
No 7 (‘Uniform provisions for the approval of position (side) lights, red
rear lights and stop lights for motor vehicles (except motor cycles) and
their trailers’) (5), which is annexed to the Agreement of 20 March 1958
concerning the adoption of uniform conditions for approval and
reciprocal recognition of approval for motor vehicle equipment and
parts;
Whereas the approximation of national laws relating to motor vehicles
entails reciprocal recognition by Member States of the checks carried out
by each of them on the basis of the common requirements,!B
(1) OJ No C 76, 7. 4. 1975, p. 37.
(2) OJ No C 255, 7. 11. 1975, p. 3.
(3) OJ No L 42, 23. 2. 1970, p. 1.
(4) See page 1 of this Official Journal.
(5) Economic Commission for Europe, Document E/ECE/324, Addendum 6 of
22 May 1967 plus Correction 1 of 9 February 1971.1976L0758 — EN — 01.01.1986 — 002.001 — 2
HAS ADOPTED THIS DIRECTIVE:
Article 1
1. Member States shall grant EEC component type-approval in respect
of any type of front position (side) lamp, rear position (side) lamp and
stop lamp which satisfies the construction and testing requirements laid
down in Annexes 0, I, III, IV and V .
2. The Member State which has granted EEC component type-approval
shall take the measures required in order to verify that production models
conform to the approved type, in so far as this is necessary and if need be
in cooperation with the competent authorities in the other Member
States. Such verification shall be limited to spot checks.
Article 2
Member States shall for each type of front position (side) lamp, rear
position (side) lamp and stop lamp which they approve pursuant to
Article 1, issue to the manufacturer, or to his authorized representative,
an EEC component type-approval mark conforming to the models shown
in Annex III.
Member States shall take all appropriate measures to prevent the use of
marks liable to create confusion between front position (side) lamps, rear
position (side) lamps and stop lamps which have been type-approved
pursuant to Article 1, and other devices.
Article 3
1. No Member State may prohibit the placing on the market of front
position (side) lamps, rear position (side) lamps and stop lamps on
grounds relating to their construction or method of functioning if they
bear the EEC component type-approval mark.
2. Nevertheless, a Member State may prohibit the placing on the
market of front position (side) lamps, rear position (side) lamps and stop
lamps bearing the EEC component type-approval mark which con-
sistently fail to conform to the approved type.
That State shall forthwith inform the other Member States and the
Commission of the measures taken, specifying the reasons for its
decision.
Article 4
The competent authorities of each Member State shall within one month
send to the competent authorities of the other Member States a copy of
the component type-approval certificates, an example of which is given
in Annex II, completed for each type of front position (side) lamp, rear
position (side) lamp and stop lamp which they approve or refuse to
approve.
Article 5
1. If the Member State which has granted EEC component type-appro-
val finds that a number of front position (side) lamps, rear position (side)
lamps and stop lamps bearing the same EEC component type-approval
mark do not conform to the type which it has approved, it shall take the
necessary measures to ensure that production models conform to the
approved type. The competent authorities of that State shall advise those
of the other Member States of the measures taken, which may, where
there is consistent failure to conform, extend to withdrawal of EEC
component type-approval. The said authorities shall take the same
measures if they are informed by the competent authorities of another
Member State of such failure to conform.
2. The competent authorities of Member States shall within one month
inform each other of any withdrawal of EEC component type-approval,
and of the reasons for such a measure.!B1976L0758 — EN — 01.01.1986 — 002.001 — 3
Article 6
Any decision taken pursuant to the provisions adopted in implementation
of this Directive, to refuse or withdraw EEC component type-approval
for front position (side) lamps, rear position (side) lamps and stop lamps
or prohibit their placing on the market or use shall set out in detail the
reasons on which it is based. Such decisions shall be notified to the party
concerned, who shall at the same time be informed of the remedies
available to him under the laws in force in the Member States and of the
time limits allowed for the exercise of such remedies.
Article 7
No Member State may refuse to grant EEC type-approval or national
type-approval of any vehicle on grounds relating to its end-outline
marker lamps, front position (side) lamps, rear position (side) lamps and
stop lamps if these bear the EEC component type-approval mark and are
fitted in accordance with the requirements laid down in Directive
76/756/EEC.
Article 8
No Member State may refuse or prohibit the sale, registration, entry into
service or use of any vehicle on grounds relating to its end-outline
marker lamps, front position (side) lamps, rear position (side) lamps and
stop lamps if these bear the EEC component type-approval mark and are
fitted in accordance with the requirements laid down in Directive
76/756/EEC.
Article 9
For the purposes of this Directive, ‘vehicle’ means any motor vehicle
intended for use on the road, with or without bodywork, having at least
four wheels and a maximum design speed exceeding 25 km/h, and its
trailers, with the exception of vehicles which run on rails, agricultural
tractors and machinery and public works vehicles.
Article 10
Any amendments necessary to adjust the requirements of the Annexes to
take account of technical progress shall be adopted in accordance with
the procedure laid down in Article 13 of Directive 70/156/EEC.
Article 11
1. Member States shall adopt and publish the provisions necessary in
order to comply with this Directive before 1 July 1977 and shall
forthwith inform the Commission thereof. They shall apply these
provisions with effect from 1 October 1977 at the latest.
2. Once this Directive has been notified, the Member States shall also
ensure that the Commission is informed, in sufficient time for it to
submit its comments, of any draft laws, regulations or administrative
provisions which they propose to adopt in the field covered by this
Directive.
Article 12
This Directive is addressed to the Member States.!B1976L0758 — EN — 01.01.1986 — 002.001 — 4
List of Annexes
Annex 0 — Definitions, general specifications, intensity of light emitted, test
procedure, colour of light emitted, conformity of production (*),note concerning colour
Annex I — Front position (side) lamps, rear position (side) lamps and stop
lamps: minimum angles required for the light distribution inspace (*)
Annex II — Model EEC component type-approval certificate
Annex III — EEC component type-approval and marking requirements
— Appendix: Examples of EEC component type-approval marks
Annex IV — Photometric measurements (*)
Annex V — Colour of light emitted: trichromatic coordinates (*)
(*) The technical requirements of this Annex are similar to those of Regulation No 7 of the
Economic Commission for Europe. In particular, the breakdown into sections is thesame. For this reason, where a section of that Regulation has no counterpart in this
Directive, its number is given in brackets for the record.
ANNEX 0
DEFINITIONS, GENERAL SPECIFICATIONS, INTENSITY OF LIGHT
EMITTED, TEST PROCEDURE, COLOUR OF LIGHT EMITTED,
CONFORMITY OF PRODUCTION, NOTE CONCERNING COLOUR
1. DEFINITIONS
For the purposes of this Directive:
1.0. End-outline marker lamp
‘End-outline marker lamp’ means the lamps fitted to the extreme outer
edge as close as possible to the top of the vehicle and intended clearly toindicate the vehicle’s overall width. This signal is intended, for certain
vehicles and trailers, to complement the vehicle’s front and rear position
(side) lamps by drawing particular attention to its bulk.
1.1. Front position (side) lamp
‘Front position (side) lamp’ means the lamp used to indicate the presence
and the width of the vehicle when the latter is viewed from the front.
1.2. Rear position (side) lamp
‘Rear position (side) lamp’ means the lamp used to indicate the presence
and the width of the vehicle when the latter is viewed from the rear.
1.3. Stop lamp
‘Stop lamp’ means the lamp used to indicate to other road users to the
rear of the vehicle that the latter’s driver is applying the service brake.
1.4. Device
‘Device’ means a lighting or signalling device comprising a light source
(and in certain cases, an optical system), a lens and a housing. A devicemay comprise one or more lamps; if it comprises several lamps, theymay be grouped, combined or reciprocally incorporated.
1.4.1. Grouped lamps
‘Grouped lamps’ means devices having seperate lenses and separate light
sources, but a common lamp housing.!
B1976L0758 — EN — 01.01.1986 — 002.001 — 5
1.4.2. Combined lamps
‘Combined lamps’ means devices having seperate lenses, but a common
light source and a common lamp housing.
1.4.3. Reciprocally incorporated lamps
‘Reciprocally incorporated lamps’ means devices having seperate light
sources (or a single light source operating under different conditions),
totally or partially common lenses and a common lamp housing.
1.5. A single lamp
‘A single lamp’ means any combination of two or more lamps, whether
identical or not, having the same function and emitting light of the samecolour, if it comprises devices, the projection of whose aggregatelight-emitting surfaces in a given transverse plane occupies 60 % or
more of the area of the smallest rectangle circumscribing the projections
of those light-emitting surfaces, provided that such combination is,where approval is required, approved as a single lamp.
1.6. Two lamps or an even number of lamps
‘Two lamps’ or ‘an even number of lamps’ means a single light-emitting
surface in the shape of a band if placed symmetrically in relation to the
median longitudinal plane of the vehicle and extending on both sides to
within not less than 400 mm of the extreme outer edge of the vehicle,and being not less than 800 mm long. The illumination of such a surfaceshall be provided by not less than two light sources placed as close as
possible to its ends. The light-emitting surface may be constituted by a
number of juxtaposed elements on condition that the projections of theseveral individual light-emitting surfaces on the same transverse planeoccupy not less than 60 % of the area of the smallest rectangle
circumscribing the projections of those individual light-emitting
surfaces.
(2.)(3.)
(4.)
5. GENERAL SPECIFICATIONS
5.1. Each sample shall conform to the specifications set forth in sections 6
and 8.
5.2. The devices shall be so designed and constructed that under normal
conditions of use, notwithstanding any vibration to which they may besubjected during such use, their satisfactory operation remains assuredand they retain the characteristics prescribed by this Directive.
5.3. Lamps approved as front position (side) lamps shall also be regarded as
end-outline marker lamps.
5.4. Lamps approved as rear position (side) lamps shall also be regarded as
end-outline marker lamps.
5.5. Combinations of front and rear position (side) lamps housed in a
common lamp housing may also be used as end-outline marker lamps.
6. INTENSITY OF LIGHT EMITTED
6.1. In the reference axis, the light emitted by each of the two samples shall
be of not less than the minimum intensity and of not more than themaximum intensity specified below:
minimum
(cd)maximum
(cd)
6.1.1. Front position (side) lamps 4 60
6.1.2. Rear position (side) lamps 2 12
6.1.3. Stop lamps 40 100!
B1976L0758 — EN — 01.01.1986 — 002.001 — 6
6.2. Outside the reference axis and within the angular fields defined in the
diagrams in Annex I, the intensity of the light emitted by each of the two
samples must:
6.2.1. in each direction corresponding to the points in the luminous intensity
distribution table reproduced in Annex IV be not less than the value
shown in the said table for the direction in question, expressed as apercentage of the minimum specified in 6.1;
6.2.2. in any direction within the space from which the lamp in question is
visible, not exceed the maximum specified in 6.1;
6.2.3. however, a luminous intensity of 60 cd shall be permitted for rear
position (side) lamps incorporated with stop lamps (see 6.1.2) below aplane forming an angle of 5° with and downward from the horizontal
plane;
6.2.4. moreover,
6.2.4.1. throughout the fields defined in Annex I, the intensity of the light
emitted must be not less than 0.05cd for front position (side) lamps and
rear position (side) lamps, and 0.3cd for stop lamps;
6.2.4.2. if a rear position (side) lamp is incorporated with a stop lamp, the ratio
between the luminous intensities actually measured of the two lamps
when turned on simultaneously and the intensity of the rear position(side) lamp when turned on alone must be at least 5:1 in the fielddelimited by the straight horizontal lines passing through + 5 and − 5° V
and the straight vertical lines passing through + 10 and − 10° H of the
light distribution table;
6.2.4.3. the requirements of 2.2 of Annex IV on local variations of intensity must
be observed.
6.3. The intensities must be measured with the filament lamp(s) continuously
alight and, in the case of devices emitting selective yellow, or red light, incoloured light.
6.4. Annex IV , to which reference is made in 6.2.1, gives particulars of the
methods of measurement to be used.
7. TEST PROCEDURE
All measurements shall be carried out with colourless standard filament
lamps of the types recommended for the device, and so regulated as to
produce the normal luminous flux prescribed for those types of lamp.
8. COLOUR OF LIGHT EMITTED
The colour of the light emitted, measured by using a source of light with
a colour temperature of 2854 K, corresponding to illuminant A of theInternational Commission on Illumination (CIE), must be within thelimits of the coordinates prescribed for the colour in question in Annex
V.
9. CONFORMITY OF PRODUCTION
Every device bearing an EEC component type-approval mark must
conform to the approved type and comply with the photometricconditions specified in sections 6 and 8. Nevertheless, in the case of adevice picked at random from series production, the requirements as to
minimum intensity of the light emitted (measured with a standard
filament lamp as referred to in section 7) may be limited in each relevantdirection to 80 % of the minimum values specified in 6.1 and 6.2.
(10.)
11. NOTE CONCERNING COLOUR
EEC component type-approval shall be granted if the colour of the light
emitted is that laid down in 3.13 of Annex I to Directive 76/756/EEC.
(12.)!
B1976L0758 — EN — 01.01.1986 — 002.001 — 7
ANNEX I
FRONT POSITION (SIDE) LAMPS, REAR POSITION (SIDE) LAMPS AND STOP LAMPS MINIMUM
ANGLES REQUIRED FOR THE LIGHT DISTRIBUTION IN SP ACE (*)
In all cases, the minimum vertical angles of light distribution in space are 15° above and 15° below the horizontal.
!B
(*) The angles shown in these diagrams are correct for devices to be mounted on the right side of the vehicle. The arrows point to the
front of the vehicles.1976L0758 — EN — 01.01.1986 — 002.001 — 8
ANNEX II
MODEL EEC COMPONENT TYPE-APPROV AL CERTIFICATE
(Maximum format: A4 (210 × 297 mm))
!B1976L0758 — EN — 01.01.1986 — 002.001 — 9
ANNEX III
EEC COMPONENT TYPE-APPROV AL AND MARKING
REQUIREMENTS
1. APPLICATION FOR EEC COMPONENT TYPE-APPROV AL
1.1. The application for EEC component type-approval shall be submitted by
the holder of the trade name or mark by his authorized representative.
1.2. In the case of a front position (side) lamp, the application for EEC
component type-approval shall specify whether it is intended to emitwhite or selective yellow light.
1.3. For each type of front or rear position (side) lamp and stop lamp, the
application shall be accompanied by the following:
1.3.1. a brief technical specification stating, in particular, the type of filament
lamp or lamps prescribed;
1.3.2. drawings, (three copies), in sufficient detail to permit identification of
the type of the lamp and showing geometrically the position in which the
lamp is to be mounted on the vehicle, the axis of observation to be takenas the axis of reference in the tests (horizontal angle H = 0°, verticalangle V = 0°), and the point to be taken as the centre of reference in the
said tests;
1.3.3. two samples; if the lamps are such that they can be mounted only on one
side of the vehicle, the two samples submitted may be identical and besuitable for mounting only on the right or only on the left side of thevehicle.
2. MARKINGS
2.1. Devices submitted for EEC component type-approval must bear:
2.1.1. the trade name or mark of the applicant, which must be clearly legible
and indelible;
2.1.2. a clearly legible and indelible marking indicating the type or types of
filament lamp recommended;
2.1.3. and incorporate a space large enough to contain the EEC component
type-approval mark and the additional symbols prescribed in 4.3; thisspace shall be shown in the drawings mentioned in 1.3.2.
3. EEC COMPONENT TYPE-APPROV AL
3.1. If all the samples submitted in accordance with section 1 meet the
requirements of sections 5, 6, 7 and 8 of Annex 0, EEC componenttype-approval shall be granted and a type-approval number assigned.
3.2. This number shall not be assigned to any other type of front position
(side) lamp, rear position (side) lamp or stop lamp, except where EEC
component type-approval is extended to another type of device differingonly in the colour of the light emitted.
3.3. Where EEC component type-approval is requested for a type of lighting
and light-signalling device comprising a front position (side) lamp, rearposition (side) lamp or a stop lamp and other lamps, a single EEC
component type-approval mark may be issued provided that the lamp in
question complies with the requirements of this Directive and that eachof the other lamps forming part of the lighting and light-signallingdevice for which EEC component type-approval is requested, complies
with the specific Directive applying to it.
4. MARKS
4.1. Every front position (side) lamp, rear position (side) lamp or stop lamp
conforming to a type approved under this Directive shall bear an EECcomponent type-approval mark.
4.2. This mark shall consist of a rectangle surrounding the lower-case letter
‘e’ followed by the distinguishing letter(s) or number of the MemberState which has granted the component type-approval:!
B1976L0758 — EN — 01.01.1986 — 002.001 — 10
1 for Germany,
2 for France,3 for Italy,
4 for the Netherlands,
6 for Belgium,9 for Spain,11 for the United Kingdom,
13 for Luxembourg,
DK for Denmark,GR for Greece,IRL for Ireland,
P for Portugal.
It must also include the EEC component type-approval number which
corresponds to the number of the EEC component type-approval
certificate issued for the type of illuminating device in question.
4.3. In the following cases the EEC component type-approval mark shall be
supplemented by an additional symbol or symbols:
4.3.1. the letter ‘A’, on devices meeting the requirements relating to front
position (side) lamps laid down by this Directive;
4.3.2. the letter ‘R’, on devices meeting the requirements relating to rear
position (side) lamps laid down by this Directive;
4.3.3. the letter ‘S’, on devices meeting the requirements relating to stop lamps
laid down by this Directive;
4.3.4. the letters ‘R’ and ‘S’ separated by a horizontal dash, on devices
comprising both a rear position (side) lamp and a stop lamp meeting the
requirements relating to such lamps laid down by this Directive;
4.3.5. an arrow pointing towards the side on which the photometric
specifications are satisfied up to an angle of 80° H, on front position(side) lamps or rear position (side) lamps whose geometric angles of
visibility are asymmetrical in relation to the reference axis in a
horizontal direction.
4.4. The EEC component type-approval number must be placed in any
convenient position near to the rectangle surrounding the letter ‘e’.
4.5. The EEC component type-approval mark and the additional symbols
must be affixed on the lens of the lamp or one of the lenses in such a wayas to be indelible and clearly legible even when the lamps are fitted onthe vehicle.
4.6. Examples of EEC component type-approval marks and additional
symbols are shown in the Appendix.
4.7. Where a single EEC component type-approval number is issued, as under
3.3, for a type of lighting and light-signalling device comprising a front
position (side) lamp, rear position (side) lamp or stop lamp and other
lamps, a single EEC component type-approval mark may be affixed,consisting of:
— a rectangle surrounding the letter ‘e’ followed by the distinguishing
letter(s) or number of the Member State which has granted the EECcomponent type-approval,
— the EEC component type-approval number,— the additional symbols required by the various Directives under
which EEC component type-approval was granted.
4.8. The dimensions of the various components of this mark must not be less
than the largest of the minimum dimensions specified for individualmarkings by the various Directives under which the EEC component
type-approval was granted.!
A2
!B1976L0758 — EN — 01.01.1986 — 002.001 — 11
Appendix
EXAMPLES OF EEC COMPONENT TYPE-APPROV AL MARKS
The device bearing the EEC component type-approval mark shown above is a front position (side) lamp, EEC
type-approved in the United Kingdom (e 11) under the number 1471. The arrow indicates the side on which the
photometric specifications are satisfied up to an angle of 80° H.!B1976L0758 — EN — 01.01.1986 — 002.001 — 12
The device bearing the EEC type-approval mark shown above is a rear position (side) lamp, EEC type-approved in the
United Kingdom (e 11) under the number 1471. The absence of an arrow means that, both right and left, the photometric
specifications are satisfied up to an angle of 80° H.!B1976L0758 — EN — 01.01.1986 — 002.001 — 13
The device bearing the EEC type-approval mark shown above is a stop lamp, EEC type-approved in the United Kingdom
(e 11) under the number 1471.!B1976L0758 — EN — 01.01.1986 — 002.001 — 14
The device bearing the EEC type-approval mark shown above is a device comprising both a rear position (side) lamp and
a stop lamp, EEC type-approved in the United Kingdom (e 11) under the number 1471. The arrow means that, on the side
to which it points, the photometric specifications are satisfied up to an angle of 80° H.!B1976L0758 — EN — 01.01.1986 — 002.001 — 15
ANNEX IV
PHOTOMETRIC MEASUREMENTS
1. MEASUREMENT METHODS
1.1. During photometric measurements, stray reflections shall be prevented
by appropriate masking.
1.2. Should the results of measurements be challenged, measurements shall
be carried out in such a way as to meet the following requirements:
1.2.1. the distance of measurement shall be such that the law of the inverse of
the square of the distance is applicable;
1.2.2. the measuring equipment shall be such that the angular aperture of the
receiver viewed from the reference centre of the light is between 10 ’and
one degree;
1.2.3. the intensity requirement for a particular direction of observation shall be
deemed to be satisfied if that requirement is met in a direction deviatingby not more than 15 ’from the direction of observation.
2. STANDARD LUMINOUS INTENSITY DISTRIBUTION TABLE
2.1. The direction H = 0° and V = 0° corresponds to the reference axis. (On
the vehicle it is horizontal, parallel to the median longitudinal plane of
the vehicle and oriented in the required direction of visibility). It passes
through the centre of reference. The values shown in the table give, forthe various directions of measurement, the minimum intensities as apercentage of the minimum required in the axis for each lamp (in the
direction H = 0° and V = 0°).
2.2. If visual examination of a lamp appears to reveal substantial local
variations of intensity, a check shall be made to ensure that no intensity
measured between two of the directions of measurement referred to in2.1 is:
2.2.1. for a minimum specification, below 50 % of the lower of the two
minimum intensities prescribed for these directions of measurements;
2.2.2. for a maximum specification, above the lower of the two maximum
intensities prescribed for these directions of measurement, increased by a
fraction, expressed as a linear function, of the difference between theintensities prescribed for the said directions of measurement.!
B1976L0758 — EN — 01.01.1986 — 002.001 — 16
ANNEX V
COLOUR OF LIGHT EMITTED TRICHROMATIC COORDINATES
RED: limit towards yellow: y 40.335
limit towards purple: z 40.008
WHITE: limit towards blue: x 50.310
limit towards yellow: x 40.500
limit towards green: y 40.150+0.640x
limit towards green: y 40.440
limit towards purple: y 50.050+0.750x
limit towards red: y 50.382
SELECTIEV YELLOW: limit towards red: y 50.138+0.580x
limit towards green: y 41.29x−0.100
limit towards white: y 5−x+0.966
limit towards the spectral value: y 4−x+0.992
For checking those colorimetric characteristics, a source of light at a colour
temperature of 2854 K corresponding to illuminant A of the InternationalCommission on Illumination (CIE) shall be used.!
B1976L0758 — EN — 01.01.1986 — 002.001 — 17