1 Scope
This Standard specifies terms and definitions, requirements, test methods and marking of passenger car tyres.
This Standard is applicable to new pneumatic tyres of passenger cars.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the editions cited apply. For undated references, the latest editions of the normative document (including any amendments) apply.
GB/T 521 Test Method of Measuring Peripheral Dimensions for Tyres
GB/T 2978 Size Designation, Dimensions, Inflation Pressure and Load Capacity for Passenger Car Tyres
GB/T 4502 Laboratory Test Methods for Passenger Car Tyres Capabilities
GB/T 6326 Tyre Terms and Definitions
HG/T 2177 Appearance Quality of the tyre
3 Terms and Definitions
For the purpose of this document, terms and definitions defined in GB/T 6326 apply.
4 Requirements
4.1 Specification, load index, ply rating, measuring rim, load capability, inflation pressure and permitted rim of the tyre
It should be in accordance with those specified in GB/T 2978.
4.2 Peripheral dimension of new tyres
It shall be in accordance with those specified in Appendix A.
4.3 Corresponding relationship between the traveling speed and inflation pressure/load
It should be in accordance with those specified in GB/T 2978.
4.4 Corresponding relationship between speed symbol and maximum traveling speed of the tyre
It shall be in accordance with those specified in Appendix B.
4.5 Corresponding relationship between load index and load capability of the tyre
It shall be in accordance with those specified in Appendix C.
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
5 Test Methods
6 Marking
Appendix A (Normative) Requirements for Peripheral Dimension of New Tyre
Appendix B (Normative) Corresponding Relationship Between Tyre Speed Symbol and Maximum Traveling Speed
Appendix C (Normative) Corresponding Relationship Between Load Index (LI) and Load Capability (TLCC) of the Tyre
