GB/T 25978-2018 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 25978-2018 | English | 145 |
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Road Vehicle - Plates and Label
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| GB/T 25978-2010 | English | 70 |
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Road vehicle -- Plate and label
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GB/T 25978-2018: Road Vehicle - Plates and Label---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT25978-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
T 04
Replacing GB/T 25978-2010
Road Vehicle – Plates and Label
[Including No.1 Amendment List 2024XG1]
Issued on. MAY 14, 2018
Implemented on. DECEMBER 01, 2018
Issued by. State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 4
4 Performance Requirements for Plates and Labels... 6
5 Test Methods of Plates and Labels... 10
Appendix A (Informative) Label Pasting Surface Suggestion... 24
No.1 Amendment List [2024XG1]... 25
1 Scope
This Standard specifies the classification, performance requirements and test method
for the plates and labels use don road vehicle to describe the vehicle information.
This Standard is applicable to various types of plates and labels used on road vehicles
to describe the vehicle manufacturing information, warning information, manipulation
and indicative information.
This Standard is not applicable to the directly-formed vehicle labels through marking,
etching, casting, spraying, printing on the vehicle or vehicle components; or through
sewing on the bodies of the components.
This Standard is not applicable to the vehicle or component labels used (which can be
removed before normal use of the vehicle) during the manufacturing, transporting,
handover period.
Various types of plates and labels used for vehicle parts and assemblies can be
referred to.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 250 Textiles - Tests for Color Fastness - Grey Scale for Assessing Change
in Color
GB/T 3280 Cold Rolled Stainless Steel Plate Sheet and Strip
GB/T 13306 Plate
3 Terms and Definitions
The following terms and definitions are applicable to this document.
3.1 Plate
A marker with rigid structure, loading vehicle information, mounted on a vehicle by
riveting, welding and tape bonding, etc. The plate can be divided into metal and non-
metal plates.
3.2 Label
A marker with flexible structure, loading vehicle information, mounted on the vehicle
by bonding, and the like modes. The label can be divided into engine compartment
labels, exposed exterior labels, non-exposed exterior labels, exposed interior labels,
non-exposed interior labels, and engine/transmission labels according to where they
were used.
3.2.1 Engine compartment labels (A type)
The Label located in the engine compartment and attached to the positions except the
engine body.
compartment, the plastic cover, the battery or the container, etc.
3.2.4 Exposed interior labels (D type)
The label located inside the vehicle, visible in the normal use state (folded part in the
stowed condition) of the part, exposed to sunlight; and the label located on the outer
surface of the sun visor (visible surface).
3.2.5 Non-exposed interior labels (E type)
The label located inside the vehicle, visible (for the folded part, it is visible when it is
opened), non-exposed to sunlight; and the labels that are only exposed when sun visor
is lowered or the door is opened.
3.2.6 Engine/transmission labels (F type)
The label directly attached to the metal body of the engine or transmission.
4 Performance Requirements for Plates and Labels
4.1 Performance requirements for plates
The coating adhesion, light fastness of color, abrasion resistance, salt spray resistance,
heat and humidity resistance, mold resistance of the plate shall meet the relevant
requirements of GB/T 13306.
4.2 Performance requirements for the label tape bonding
4.2.1 Peel strength
The peel strength properties of the tape can be evaluated by 180° peel strength or 90°
peel strength (choose either one).
The requirements for peel strength under different working conditions are as follows.
4.2.2 Pulling force performance
After the test of 5.2.4, the pulling force shall be greater than or equal to 125N.
4.2.3 Dynamic shear strength
4.2.3.1 Dynamic shear strength at initial adhesion
After the test of 5.2.5 a), the dynamic shear strength shall be greater than or equal to
0.2N/mm2.
4.2.4 Static shear strength
After the test of 5.2.6, the static retention time shall be greater than or equal to
10000min.
4.3 General performance requirements for labels
4.3.1 180° peel strength
After the test of 5.3.2, 180° peel strength shall be greater than or equal to 0.44N/mm.
4.3.2 Abrasion resistance
After the test of 5.3.3, the label shall be in good appearance, no adhesive or separative
phenomenon, no damage, no significant change in surface color compared with the
sample before the test; the information on the label shall be clear and easy to identify;
if there is a barcode on the label, the barcode shall be readable after the test.
4.3.3 Liquid resistance
After the test of 5.3.4, the label shall be in good appearance, no adhesive or separative
phenomenon, no damage, no significant change in surface color compared with the
sample before the test; the information on the label shall be clear and easy to identify;
if there is a barcode on the label, the barcode shall be readable after the test.
4.3.4 Humidity resistance
After the test of 5.3.5, the label shall be in good appearance, no adhesive or separative
phenomenon, no damage, no significant change in surface color compared with the
sample before the test; the information on the label shall be clear and easy to identify;
if there is a barcode on the label, the barcode shall be readable after the test.
4.3.5 Thermal cycling performance
After the test of 5.3.6.1, the label shall be in good appearance, no adhesive or
separative phenomenon, no damage, no significant change in surface color compared
with the sample before the test; the information on the label shall be clear and easy to
identify; if there is a barcode on the label, the barcode shall be readable after the test.
4.3.6 Thermal aging performance
After the test of 5.3.7, the label shall be in good appearance, no adhesive or separative
phenomenon, no damage, no significant change in surface color compared with the
sample before the test; the information on the label shall be clear and easy to identify;
if there is a barcode on the label, the barcode shall be readable after the test.
4.4 Additional requirements for special purpose labels 1)
4.4.1 Anti-tamper performance
4.4.1.1 Label removal
4.4.2 Anti-counterfeiting performance
4.4.2.1 Labels shall be protected against forgery.
4.4.2.2 The label material shall contain the manufacturer’s logo or some other unique
identifier, the alternation or elimination of which can identifiably change the appearance
of the label.
5 Test Methods of Plates and Labels
5.1 Test methods of plates
Perform the test as per the provisions of GB/T 13306.
5.2 Test methods of label tape bonding
5.2.1 Test environment
Unless otherwise specified, all tests shall be carried out in a standard environment
(23°C±2°C, 50%±5% RH); meanwhile, the test tape and test board shall be placed in
a standard environment for 4h before being pasted.
5.2.2 Sample preparation
Test board. length is 125mm±1mm, width is 50mm±1mm, thickness is 1.5mm~2.0mm;
the test board is made of 06Cr19Ni10 specified in GB/T 3280.It is also possible to
select a paint plate or electroplating plate on the outside of the vehicle part to which
the label is actually pasted as a test board. The surface of the test board needs to be
cleaned with absorbent gauge and detergent before tape is applied to test board.
5.2.3 Peel strength test
5.2.3.1 180° peel strength test
Prepare the tape sample with width of 25mm±1mm, length of 200mm±1mm under the
standard environment. In order to ensure that the tape is not stretched and deformed
at the time of peeling, a polyester film with thickness of 20µm~60µm shall be attached
to the open side of the tape. Meanwhile, in order to ensure the adhesion strength
between the polyester film and the tape, before applying the polyester film, the primer
is applied to the bonding surface of the polyester film; after the primer is dried, attach
the polyester film to the tape.
5.2.3.3 Peel strength test at initial adhesion
After the sample is prepared and pasted, place the test sample into the standard
environment for 20min; test as per the test method specified in 5.2.3.1 or 5.2.3.2.
5.2.3.4 Peel strength test in standard environment
After placing the test sample in the standard environment for 72h, test as per the test
method specified in 5.2.3.1 or 5.2.3.2.
5.2.3.5 Peel strength test at high temperature
After placing the test sample in the standard environment for 24h, test at 80°C±2°C
condition as per the test method specified in 5.2.3.1 or 5.2.3.2.
5.2.3.6 Peel strength test after thermal aging
After placing the test sample in standard environment for 24h, place it at 80°C±2°C
condition; then place the sample in the standard environment 24h. Test as per the test
method specified in 5.2.3.1 or 5.2.3.2.
5.2.3.7 Peel strength test after warm water aging
After placing the test sample in standard environment for 24h, immerse it into a water
bath at 40°C±2°C for 240h; then completely erase the moisture on the surface; place
it in standard environment for 24h; test as per the test method specified in 5.2.3.1 or
5.2.3.2.
5.2.3.8 Peel strength test after cyclic aging
After placing the test sample in standard environment for 24h, perform the aging test
under the following temperature cycle.
5.2.3.9 Peel strength test after humidity resistance aging
After placing the test sample in the standard environment for 24h, place the test sample
at 38°C±2°C, 95% RH condition for 240h; after that, place the test sample in the
standard environment for 24h; then test as per the test method specified in 5.2.3.1 or
5.2.3.2.
5.2.4 Pulling force performance test
In the standard environment, prepare the tape and aluminum block with width of
12.5mm±1mm, length of 25mm±1mm.
Adhere the side of the tape without the release paper to the aluminum block; then use
5.2.5 Dynamic shear strength test
In the standard environment, prepare the tape sample with width of 25mm±1mm,
length of 2mm±1mm.
5.2.6 Static shear strength test
In the standard environment, prepare the tape sample with width of 25mm±1mm,
length of 25mm±1mm.
5.3 Test methods of labels
5.3.1 Test preparation
5.3.1.1 Selection of test board
When performing the tests of 5.3.2, 5.3.7, 5.3.12, the materials of test board shall be
06Cr19Ni10 specified in GB/T 3280.
For other tests, it is recommended to select the actually adhesive surface of label to
be used as the test board.
5.3.1.2 Preparation of test sample
Except for the test provisions of 5.3.2, 5.3.11, 5.3.12, the size of the test label shall be
consistent with the actual application; the size of the test board shall match the test
label. The test label shall contain identification information.
5.3.2 180° peel strength test
Prepare the label with width of 25mm±1mm, length of 200mm±1mm; attach the label
to the test board (length of 125mm±1mm, width of 50mm±1mm, thickness of
1.5mm~2.0mm); use a 2kg-weight and 50mm-wide press roll to roll back and forth on
its surface at the speed of 300mm/min; ensure the completely pasting of the label.
Under the following test conditions.
5.3.3 Abrasion resistance test
The label shall be applied to the same paperboard substrate provided by the
manufacturer of the Taber abrasion tester, use CS-10 grinding wheel, pass through the
Table abrasion tester; perform the following abrasion cycle at the load of 500g and at
the speed of 30r/min.
a) Class A, C, D, E labels shall be performed 100 abrasion cycles;
b) Class B, F labels shall be performed 200 abrasion cycles.
5.3.4 Liquid resistance test
In addition to the standard provisions, the liquid resistance test shall use the actually
applied liquid of the vehicle. The test includes.
5.3.5 Humidity resistance test
Place the test sample in the 40°C±2°C, 100% RH condition for 144h.
After the test, place it in the standard environment for 1h; then visually examine.
5.3.6 Thermal cycling test
5.3.6.1 The test sample shall perform the following 2 cycles [one cycle is indicated
form a) to d)]
5.3.6.2 After the test sample is prepared, place in the standard environment for 10min;
perform 2 cycles as stipulated in a) ~ d) of 5.3.6.1.After the test, place in the standard
environment for 1h; and visually examine.
5.3.6.3 It is only applicable to the labels that require significant temperature changes
in a short time after pasting. 5.3.6.2 is not used as a label performance evaluation test;
if after the test, the label appearance is significantly changed or the adhesion
separation occurs; then such position is not recommended to past the label (see
Appendix A for the label pasting surface suggestion).
5.3.7 Thermal aging test
Place the test sample under the following temperature conditions.
5.3.9 Artificial climate accelerated aging test
Place the test sample in the aging tank, which adopts the xenon lamp as a light source;
the accumulated radiant energy of the test sample for type B labels can reach
2500kJ/m2; while type C labels can reach 600kJ/m2.During the test process,
continuous illumination is used according to the illumination for 102min, illumination
and water spray for 18min, the blackboard temperature is 65°C±3°C.
After the test, place it in the standard environment for 1h, and visually examine.
The artificial climate accelerated aging test is applicable to type B, type C labels.
5.3.10 High pressure resistance cleaning test
After the tests of 5.3.5, 5.3.6.1, 5.3.7, place in the standard environment for 24h; then
the high-pressure water gun with a pressure of 8.50MPa±0.34MPa and a water
temperature of room temperature is sprayed at 45° from the 20cm position of the label
for a duration of 5s.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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