1 Scope
This Standard specifies the terms and definitions, requirements, test methods and marks of truck tyres.
This Standard is applicable to new pneumatic truck tyres .
2 Normative References
The following referenced documents are indispensable for the application of this Standard. For the dated references, only the dated edition applies. For undated references, the latest edition (including any amendments) applies.
GB/T 521 Measuring Methods for Tyre Peripheral Dimensions
GB/T 2977 Tyre Specification，Dimensions，Inflation Pressure and Load Capacity for Truck Tyres
GB/T 4501 Laboratory Test Methods for Truck Tyre Performance
GB/T 6326 Tyre Terms and Definitions
HG/T 2177 Appearance Quality of Tyres
3 Terms and Definitions
Terms and definitions defined in GB/T 6326 is applicable to this document.
4 Requirements
4.1 Tyre Specification, Load Index, Level, Measuring Rim, Load Capacity, Inflation Pressure, the Minimum Double-Tyre Distance and Allowed Rim
They shall comply with the requirements of GB/T 2977.
4.2 Peripheral Dimension of the New Tyre
It shall meet the requirements of Appendix A.
4.3 Corresponding Relationship among the Tyre Driving Speed and Inflation Pressure, Load
It should meet the requirements of GB/T.
4.4 Corresponding Relation between Tyre Speed Symbol and the Maximum Running Speed
It shall meet the requirements of Appendix B.
4.5 Corresponding Relation between Tyre Load Index and Load Capability
It shall meet the requirements of Appendix C.
