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GB/T 25978-2010 English PDF (GBT25978-2010)

GB/T 25978-2010 English PDF (GBT25978-2010)

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GB/T 25978-2010: Road vehicle -- Plate and label

This standard specifies the definition, performance requirements and test methods of plates and labels used on road vehicles for the descriptions of vehicle information.
GB/T 25978-2010
GB
NATIONAL STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
ICS 43.020
T 04
Road vehicles - Plate and label
ISSUED ON. JANUARY 10, 2011
IMPLEMENTED ON. MAY 01, 2011
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Performance requirements for plates and labels ... 6
5 Test methods for plates and labels ... 10
Foreword
This standard was proposed by the National Development and Reform
Commission of the People's Republic of China.
This standard shall be under the jurisdiction of the National Automotive Standardization Technical Committee (SAC/TC 114).
The responsible drafting organizations of this standard. China Automotive Technology and Research Center, 3M China Limited, Tesa Tape (Shanghai) Co., Ltd.
The participating drafting organizations of this standard. Ministry of Public Security Traffic Management Science Research Institute, Pan Asia Technical Automotive Center Co., Ltd., Dongfeng Motor Co., Ltd., Guangzhou Toyota Motor Co., Ltd., Jiangling Motors Co., Ltd., FAW Group Technology Center, Shanghai Volkswagen Automotive Co., Ltd., Shanghai Automotive Industry
(Group) Corporation, Chery Automobile Co., Ltd., Changan Automobile Group Co., Ltd.
The main drafters of this standard. Zhu Tong, Geng Lei, Wang Xin, Fang
Xiaoyong, Xu Changxi, Guo Miao, Wang Junhua, Sun Hongfen, Guo Chenjian, Zhang Jiamin, Sun Daxing, Mei Nan, Su Yuping, Zhou Yi, Yao Honghua, Qin Yiyong, Feng Yuying.
Road vehicles - Plate and label
1 Scope
This standard specifies the definition, performance requirements and test methods of plates and labels used on road vehicles for the descriptions of vehicle information.
This standard applies to all types of plates and labels used on road vehicles for the description of vehicle manufacturing information, warning information, manipulation and indicative information.
This standard does not apply to the vehicle identifications directly formed on a vehicle or vehicle body by marking, etching, casting, painting, printing, or sewing, etc.
This standard does not apply to vehicle non-information plates and labels. This standard does not apply to the identification of vehicles or components used in the production, transportation or transfer of vehicles (which may be removed prior to normal use of the vehicle).
All kinds of plates and labels used for vehicle components and assembly may make reference to this standard.
2 Normative references
The provisions in following documents become the provisions of this Standard through reference in this Standard. For the dated references, the subsequent amendments (excluding corrections) or revisions do not apply to this Standard; however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 250-2008 Textiles - Tests for color fastness - Gray scale for assessing change in color (idt ISO 105-A02.1993)
GB/T 3280-2007 Cold rolled stainless steel plate, sheet and strip
GB 8410-2006 Flammability of automotive interior materials
GB/T 13306-1991 Plate
For example. labels pasted to the post or inside of the post, and fuel tank filler cover labels.
3.2.4
Exposed interior labels (D type)
It refers to the labels located inside the vehicle, visible in the normal use of the component (the foldable component is in stowed condition), exposed to sunlight, and located on the outer surface (visible surface) of the visor. For example. the sun visor airbag label, seat belt label, VIN label, etc. 3.2.5
Non-exposed interior labels (E type)
It refers to the labels located inside the vehicle which is visible (as for the foldable components, the label is visible when the folded component is
opened) and not exposed to sunlight; AND the labels which are only exposed after opening the sun visor or door.
For example. labels affixed to the inner surface of sun visor, labels affixed to the inner surface of the foldable components, and luggage compartment
label, etc.
4 Performance requirements for plates and labels
4.1 Performance requirements for plates
The coating adhesion, color fastness, abrasion resistance, salt spray resistance, wet heat resistance and mold resistance shall comply with the relevant
requirements of GB/T 13306-1991. The performance requirements of the plates can also be determined by the supplier and the purchaser through negotiation. 4.2 Performance requirements for plate tape adhesion
4.2.1 Peeling strength
Through negotiation between the supplier and the purchaser, it may use the 180?? peeling strength or 90?? peeling strength (either one of them) to assess the peeling strength properties of the tape.
4.2.1.1 Peeling strength at the time of initial adhesion
5.2 Test method for plate tape adhesion
5.2.1 Test environment
Unless otherwise specially defined, all tests shall be conducted in a standard environment (23 ??C ?? 2 ??C, 50% ?? 5% RH), AND meanwhile the test tape and test plate shall be left in a standard environment for 4 h before being pasted. 5.2.2 Sample preparation
Test plate. length of 125 mm ?? 1 mm, width of 50 mm ?? 1 mm, thickness of 1.5 mm ~ 2.0 mm, AND the test plate material is the 1Cr18Ni9Ti (SUS304) as
specified in GB/T 3280-2007. Through negotiation between the supplier and the purchaser, it may also select the paint plate or electroplating plate outside the vehicle on which the plates are actually affixed as the test plate. Before pasting the tape onto the test plate, it shall use the degreased gauze and detergent to clean the surface of the test plate.
Tape. Tape size is based on the specific requirements of different tests, each test requires preparing of at least 3 samples, AND the test result is the average of the test results of each sample. The test tape is a roll of double-sided tape with one side covered with release paper. The side without the release paper is called the open side, which is affixed to the label. AND the other side covered with a release paper is called a covering surface, which is affixed to the vehicle body or electroplating component surface.
5.2.3 Peeling strength test
5.2.3.1 180?? peeling strength test
In a standard environment, PREPARE a tape sample of width 25 mm and length 200 mm. In order to ensure that the tape is not stretched or deformed in the stripping, it is required to attach a 20 ??m ~ 60 ??m polyester film to the open side of the tape. At the same time, in order to ensure the adhesive strength of polyester film and tape, before attaching the polyester film, APPLY the primer coating to the adhesive surface of polyester film, AND after the primer is dried, AFFIX the polyester film to the tape.
ATTACH the covering side of the tape which is affixed with polyester film to the test plate, and USE a 2 kg pressure roller to roll the surface at the speed of 300 mm/min for a round trip, in order to ensure the tape is completely adhered. Under the different test conditions of 5.2.3.3 to 5.2.3.9, FOLD the free end of the test sample for 180??; from the test plate, STRIP 25 mm test sample; respectively CLAMP the free end of the test sample and the test plate in the upper and lower holders of the tensile tester; it shall ensure that the stripping After placing the test sample in a standard environment for 24 h, PLACE the test sample in an 80 ??C ?? 2 ??C aging box for 240 h. After aging is finished, PLACE the test sample in the standard environment for 24 h; CONDUCT test in accordance with the test method as specified in 5.2.3.1 or 5.2.3.2.
5.2.3.7 Peeling strength test after aging in warm water
After placing the test sample in a standard environment for 24 h, IMMERSE it in a water bath of 40 ??C ?? 2 ??C for 240 h. After aging is finished, thoroughly REMOVE the surface moisture and PLACE the test sample in the standard
environment for 24 h; CONDUCT test in accordance with the test method as specified in 5.2.3.1 or 5.2.3.2.
5.2.3.8 Peeling strength test after cyclic aging
After placing the test sample in a standard environment for 24 h, PLACE it in the cyclic aging box; CONDUCT aging test based on the following temperature cycles.
a) At -30 ??C, PLACE it for 17 h;
b) At 70 ??C, PLACE it for 72 h;
c) At 38 ??C and 100% RH, PLACE it for 24 h;
d) At -30 ??C, PLACE it for 7 h;
e) At 38 ??C and 100% RH, PLACE it for 17 h;
f) At 70 ??C, PLACE it for 7 h.
After the aging is finished, PLACE the test sample in the standard environment for 24 h; CONDUCT test in accordance with the test method as specified in 5.2.3.1 or 5.2.3.2.
5.2.3.9 Peeling strength test after moisture aging
After placing the test sample in a standard environment for 24 h, PLACE the test sample in a 38 ??C ?? 2 ??C and 95% RH aging box for 240 h. After aging is finished, PLACE the test sample in the standard environment for 24 h;
CONDUCT test in accordance with the test method as specified in 5.2.3.1 or 5.2.3.2.
5.2.4 Pulling force performance test
In a standard environment, PREPARE the tape and aluminum block of width...

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