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GB 23255-2009

Chinese Standard: 'GB 23255-2009'
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Standard ID GB 23255-2009 (GB23255-2009)
Description (Translated English) Photometric characteristics of daytime running lamps for motor vehicles
Sector / Industry National Standard
Classification of Chinese Standard T38
Classification of International Standard 43.040.20
Word Count Estimation 8,893
Date of Issue 2009-03-06
Date of Implementation 2010-01-01
Drafting Organization Shanghai Institute of Automotive Lighting
Administrative Organization National Automotive Standardization Technical Committee
Regulation (derived from) Announcement of Newly Approved National Standards No. 2 of 2009 (total 142)
Proposing organization National Development and Reform Commission
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This Chinese standard specifies the automotive daytime running lamps for the technical requirements, test methods and inspection rules. This standard applies to M, N types of vehicles in various types of daytime running lights. In this standard, also known as daytime running lights lamps.

GB 23255-2009
ICS 43.040.20
Photometric characteristics of
daytime running lamps for motor vehicles
汽 车 昼 间 行 驶 灯 配 光 性 能
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 5 
4 Different types of daytime running lamps ... 6 
5 Requirements ... 6 
6 Test methods ... 8 
7 Inspection rules ... 10 
The technical content of this standard is mandatory.
This standard corresponds to the United Nations Economic Commission for
Europe ECE R87 Rev 1 Amend 4 “Uniform provisions concerning the
approval of daytime running lamps for power-driven vehicles”, the degree of
consistency is not equivalent, and the main differences are as follows.
-- Modified the scope;
-- Added normative references;
-- Removed the following chapters and annexes on management in ECE
4. Mark;
5. Certification;
12. Daytime running lamps model improvements and certification
13. Production consistency;
14. Punishment of failing to meet production consistency;
15 Products completely terminate production;
16. The name and address of the technical service department and
management department that conducted the certification test;
Annex 1 Notice of the approval / extension / abolish / recovery or
product discontinuation of the certification for certain daytime running
lamps in accordance with ACT 87 code;
Annex 2 Example of the layout of the certification mark;
Annex 4 Light color chromaticity coordinates;
Annex 5 Minimum requirements of production conformity control
Annex 6 Minimum requirements for inspector sampling;
-- Added inspection rules.
The main technical requirements of this standard are as follows. general
technical requirements, luminous intensity, light color, heat resistance,
methods, etc., which is in line with ECE R87. This standard is proposed by
the National Development and Reform Commission.
This standard is attributed by the National Automotive Standardization
Technical Committee.
The responsible drafting organization of this standard. Shanghai Automotive
Lighting Institute and Changchun Hella Automotive Lighting Ltd.
The main drafters of this standard. Wang Hua, Yu Peifeng, Yu Yali, Ye Lin.
Photometric characteristics of
daytime running lamps for motor vehicles
1 Scope
This standard specifies technical requirements, test methods and inspection
rules for photometric characteristics of daytime running lamps for motor
This standard applies to various types of daytime running lamps of category
M and N vehicles used.
In this standard, daytime running lamps are also called luminaires.
2 Normative references
Through referencing of this standard, the following documents provisions
become the terms of this standard. For dated references, subsequent
amendments (not including errata content) or revisions do not apply to this
standard. However, encourage the parties who reach an agreement in
accordance with this standard to make a research on whether to use the
latest version of these documents. For undated references, the latest version
applies to this standard.
GB 4599 Motor vehicle headlamps equipped with filament lamps
GB 4785 Prescription for installation of the external lighting and
light-signalling devices for motor vehicles and their trailers
GB 15766.1 Lamps for road vehicles. Dimensional, electrical and luminous
ECE R37 Uniform provisions concerning the approval of filament lamps for
use in approved lamp units of power-driven vehicles and of their trailers
3 Terms and definitions
Established terms and definitions in GB 4785 apply to this standard.
4 Different types of daytime running lamps
The daytime running lamps that differ in the following main areas.
- Trademark name or trademark;
- Characteristics of the optical system (luminous intensity level, minimum
angle of light distribution, types of used filament bulb or light source
module, etc.);
However, the change of filament bulb color or filter color can be considered
the same type.
5 Requirements
5.1 The daytime running lamps shall be designed and manufactured such
that, under regular using condition, even if the lamps subject to vibration, they
can still meet the requirements and the specifications of this standard.
5.2 For the light source module used, it shall be designed such that, even in
the dark, it can be installed in the correct position, and can also prevent
5.3 If daytime running lamps can use the same light source in combination
with other functions, it may use electric light source controller to manipulate
luminous intensity.
5.4 The light color of daytime running lamps should be white, and the color
property should be consistent with GB 4785 provisions.
5.5 Filament bulbs used shall comply with the provisions of GB 15766.1 or
ECE R37.
5.6 Luminous surface area shall not be less than 40cm2.
5.7 Photometric characteristics
5.7.1 The luminous intensity of daytime running lamps in reference axis shall
not be less than 400 cd.
5.7.2 The luminous intensity of each measurement direction emitted by each
luminaire, projecting to the point on the distribution of light distribution in
Figure 1, shall not be lower than the PRODUCT OF the percentage value of
each point as shown in Figure 1 AND 400 cd.
5.7.3 In any direction, light intensity emitted by the lamp shall not exceed 800
5.7.4 For the daytime running lamps consisting of more than one light source,
when any one of the light sources fails to shine due to a fault, the lamps shall
meet the prescribed minimum luminous intensity; when all light sources are lit,
the lamps cannot exceed the specified maximum luminous intensity.
Figure 1 -- Light Distribution
5.7.5 The directions of H = 0° and V = 0° correspond to the reference axis
(when installed on the vehicle, it is horizontal and parallel to the longitudinal
surface of the vehicle, pointing to the direction of the required visibility) which
passes through the reference center. Figure 1 already shows the minimum
value in different directions, which is expressed as a percentage of the
minimum value required on the axis of each luminaire (directions of H = 0°
and V = 0°).
5.7.6 In the light distribution area of 6.10 below, it shall be the same as 5.7.5.
That is, the luminous intensity of each direction emitted in the area formed by
the grid lines shall reach the lowest required percentage value in the specified
direction on the grid lines.
5.8 Heat resistance
5.8.1 After the heat resistance test for lamps, under stable ambient
temperature, there shall not have phenomenon for any distortion, deformation,
cracks or color changes for the lamps.
5.8.2 If there is any doubt as to the result of 5.8.1, retest is needed for the
photometric characteristics. The measuring result shall be at least 90% of the
result it measured before the heat-resistance test.
6 Test methods
6.1 Test dark-room, equipment and facility shall comply with the provisions of
GB 4599.
6.2 Determine the visual surface boundary in the direction of the reference
axis of luminaires.
6.3 Voltage when testing light distribution
6.3.1 For the daytime running lamps with replaceable filament bulbs, use a
colorless, standard bulb in accordance with GB 15766.1 or ECE R37 for light
distribution testing; and perform the measurement at the specified test
luminous flux.
6.3.2 For the daytime running lamps with non-replaceable or other light
sources. make measurements at 6.75V, 13.5V or 28.0V. Where necessary,
the manufacturer shall provide the dedicated power supply required for such
light source and make measurements at the voltages specified by the
6.4 Before the light distribution test, lighten the light source at the test voltage
to stabilize its light performance.
6.5 When performing light distribution test, proper shading is needed to a......
Related standard: GB 23255-2019    GB 23254-2009
Related PDF sample: GB 23255-2019    GB 23254-2009