Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 25978-2010 Road vehicle - Plate and label; the following technical changes have been made with respect to GB/T 25978-2010:
——The engine/transmission labels (F type) (3.2.6) is added, with corresponding performance requirements specified;
——The test conditions for general performance requirements of multiple labels are perfected, meanwhile multiple liquids are added for the performance requirements on liquid-resistance, including leather cleaning solution, cleaning solution for carpet and vehicle tools, isopropyl alcohol (IPA) aqueous solution mixed with 50% volume, transmission liquid, ethanol, etc.; 10min heat cycle test is added in 5.3.6.2, and high pressure cleaning resistance test (in 5.3.10) and hot shear bond strength performance test (in 5.3.11) are added;
——The method for label self-destruction performance test (5.3.12) is added, improving the anti-counterfeiting and anti-tampering performances;
——Annex A (Informative) “Suggestions for label pasting surface” is added.
This Standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This standard is under the jurisdiction of SAC/TC 114 National Technical Committee on Automobiles of Standardization Administration of China.
The previous edition of standard replaced by this standard is as follows:
——GB/T 25978-2010.
Flat Head Riveted Nuts
1 Scope
This standard specifies the classification, performance requirements and test methods of the plates and labels used on road vehicles for stating the vehicle information.
This standard is applicable to various types of plates and labels used on road vehicles for stating vehicle manufacture information, warning information, operating and indicating information.
This standard is not applicable to the vehicle identifications directly formed by means of punching, etching, casting, spraying or printing on the vehicle or its component body or sewing on component body.
This standard is not applicable to the identifications, which are removable before the vehicle puts into normal use and which is applied on the vehicle or its component during production, transportation and delivery.
Various types of plates and labels intended for vehicle parts, components and assemblies may use this standard as a reference.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
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 Plates
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
plate
marker of a rigid structure with vehicle information, which is installed at vehicle through riveting, welding, tape sticking, etc. and classified into metal plate and nonmetal plate
3.2
label
marker of a flexible structure with vehicle information, which is installed at vehicle through sticking and classified by application position into engine compartment label, exposed exterior label, non-exposed exterior label, exposed interior label, non-exposed interior label and engine/transmission label
3.2.1
engine compartment labels (A type)
labels which are located in engine compartment and stuck on the part beyond engine body
Note: for example, the labels stuck on sprayed sheet metal part, plastic decorative cover, accumulator or vessel in engine compartment.
3.2.2
exposed exterior labels (B type)
labels located at outside of engine body, with their positions visible
Note: for example, the label for trailer hitch, luggage rack or ski rack load.
3.2.3
non-exposed exterior labels (C type)
labels located at the junction part of vehicle body moving components and visible only after opening the moving components
Note: for example, the label stuck on or inside the doorpost or on tank filler cover, etc.
3.2.4
exposed interior labels (D type)
label located at interior of vehicle, which is visible and exposed in sunlight at normal use (folding component being in folded state) state of components, and that located at external surface (visible surface) of sunshading board
Note: for example, the label for air bag on sunshading board and that for safety belt.
3.2.5
non-exposed interior labels (E type)
labels located at interior of vehicle, visible (for folding component, the label is visible when it is in unfolded status) and not exposed in sunlight and those which are exposed only after putting down the sunshading board or opening the door
Note: for example, the label stuck on internal surface of sunshading board or internal surface of foldable components or label for luggage compartment, etc.
3.2.6
engine/transmission labels (F type)
labels that are directly stuck to the metal body of the engine or transmission
4 Performance requirements of plates and labels
4.1 Performance requirements of plates
The adhesive force of coating, light fastness of color, abrasion resistance, salt mist resistance, heat and humidity resistance and fungus resistance of plate shall be in accordance with the relevant requirements of GB/T 13306.
4.2 Performance requirements for tape sticking of plates
4.2.1 Peeling strength
The peeling strength performance of tape may be evaluated according to either 180° peeling strength or 90° peeling strength.
Requirements for peeling strength under different working conditions are:
a) Peeling strength for initial sticking
180°and 90°peeling strength shall be larger than or equal to 0.5N/mm and 0.4N/mm respectively after the test specified in 5.2.3.3 is carried out.
b) Peeling strength under standard environment
180°and 90°peeling strength shall be larger than or equal to 1N/mm and 0.8N/mm respectively after the test specified in 5.2.3.4 is carried out.
c) Peeling strength under high temperature
180°and 90°peeling strength shall be larger than or equal to 0.4N/mm and 0.3N/mm respectively after the test specified in 5.2.3.5 is carried out.
d) Peeling strength after heat ageing
180°and 90°peeling strength shall be larger than or equal to 0.8N/mm and 0.8N/mm respectively after the test specified in 5.2.3.6 is carried out.
e) Peeling strength after ageing in warm water
180°and 90°peeling strength shall be larger than or equal to 0.8N/mm and 0.8N/mm respectively after the test specified in 5.2.3.7 is carried out.
f) Peeling strength after cycling ageing
180°and 90°peeling strength shall be larger than or equal to 1N/mm and 0.8N/mm respectively after the test specified in 5.2.3.8 is carried out.
g) Peeling strength after humidity ageing
180°and 90°peeling strength shall be larger than or equal to 0.8N/mm and 0.8N/mm respectively after the test specified in 5.2.3.9 is carried out.
4.2.2 Drawing force performance
The drawing force shall be larger than or equal to 125N after the test specified in 5.2.4 is carried out.
4.2.3 Dynamic shear strength
4.2.3.1 Dynamic shear strength for initial sticking
Dynamic shear strength shall be greater than or equal to 0.2N/mm2 after the test specified in Item a) of 5.2.5 is carried out.
4.2.3.2 Dynamic shear strength under standard environment
The dynamic shear strength shall be greater than or equal to 0.3N/mm2 after the test specified in Item b) of 5.2.5 is carried out.
4.2.3.3 Dynamic shear strength under high temperature
The dynamic shear strength shall be greater than or equal to 0.2N/mm2 after the test specified in Item c) of 5.2.5 is carried out.
4.2.3.4 Dynamic shear strength after heat ageing
Dynamic shear strength shall be greater than or equal to 0.4N/mm2 after the test specified in Item d) of 5.2.5 is carried out.
4.2.3.5 Dynamic shear strength after ageing in warm water
The dynamic shear strength shall be greater than or equal to 0.3N/mm2 after the test specified in Item e) of 5.2.5 is carried out.
4.2.3.6 Dynamic shear strength after cycle ageing
The dynamic shear strength shall be greater than or equal to 0.3N/mm2 after the test specified in Item f) of 5.2.5 is carried out.
4.2.3.7 Dynamic shear strength after ageing of windshield detergent
The dynamic shear strength shall be greater than or equal to 0.4N/mm2 after the test specified in Item g) of 5.2.5 is carried out.
4.2.4 Static shear strength
The static retention time shall be greater than or equal to 10,000min after the test specified in 5.2.6 is carried out.
4.3 General performance requirements for labels
4.3.1 180°peel strength
The 180°peel strength shall be greater than or equal to 0.44N/mm after the test specified in 5.3.2 is carried out.
4.3.2 Resistance to abrasion
After the test specified in 5.3.3, the label shall be intact without debonding, damage, or any change in surface color (compared with the sample before test); the information on the label shall be legible and identifiable; the bar code on label, if any, shall be readable.
4.3.3 Resistance to liquids
After the test specified in 5.3.4, the label shall be intact without debonding or any change in surface color (compared with the sample before test); the information on the label shall be legible and identifiable; the bar code on label, if any, shall be readable.
4.3.4 Moisture-proof performance
After the test specified in 5.3.5, the label shall be intact without debonding or any change in surface color (compared with the sample before test); the information on the label shall be legible and identifiable; the bar code on label, if any, shall be readable.
4.3.5 Heat cycle performance
After the test specified in 5.3.6.1, the label shall be intact without debonding or any change in surface color (compared with the sample before test); the information on the label shall be legible and identifiable; the bar code on label, if any, shall be readable.
4.3.6 Heat ageing performance
After the test specified in 5.3.7, the label shall be intact without debonding or any change in surface color (compared with the sample before test); the information on the label shall be legible and identifiable; the bar code on label, if any, shall be readable.
4.3.7 Color fastness
After the test specified in 5.3.8, the color difference of label shall at least reach Grade 4 on the grey scale specified in GB/T 250.
4.3.8 Artificial weathering resistance
After the test specified in 5.3.9, the label shall be intact without debonding or any change in surface color (compared with the sample before test); the information on the label shall be legible and identifiable; the bar code on label, if any, shall be readable.
4.3.9 High pressure cleaning resistance
After the test specified in 5.3.10, the label shall be intact without debonding or any change in surface color (compared with the sample before test); the information on the label shall be legible and identifiable; the bar code on label, if any, shall be readable.
4.3.10 Hot shear bond strength
After the test specified in 5.3.11, the displacement of the label shall not exceed 5mm and the letters or characters on the label shall not be distorted; the bar code on label, if any, shall be readable.
4.4 Additional requirements for special-purpose labels
4.4.1 Anti-tamper performance
4.4.1.1 Removal of the label:
4.4.1.1.1 The labels shall be self-destructed by tearing it up or making the information on label illegible. After the test specified in 5.3.12, the label shall be broken and unable to be removed completely, or in the case that it is not broken, there shall be a significant change (such as cracking and deformation) in its appearance, making the information incomplete.
4.4.1.1.2 After the removal of the labels on the painted surface, the appearance of the position where the label was once pasted shall have an identifiable change, so that the examiner can trace the evidence of the original label in the paste area. If it is achieved by means of fluorescence, a fluorescent mark shall be left after the label is removed
4.4.1.2 After the information on label is changed, the trace of the original information shall be left or the appearance of label shall be changed obviously.
4.4.2 Anti-counterfeiting performance
4.4.2.1 Labels shall be protected from counterfeiting.
4.4.2.2 Label material shall include the manufacturer identification or other unique identifications, and the modification or elimination of the identification shall cause a recognizable change to the label appearance.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Performance requirements of plates and labels
5 Test method for plates and labels
Annex A (Informative) Suggestions for label sticking surface
