1 Scope
This standard specifies the terms and definitions, the methods for expressing tyre size designation, and dimensions, inflation pressure and load capacity corresponding to the tyre size designation for passenger car tyres.
This standard is applicable to new pneumatic passenger car tyres.
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 6326 Tyre terms and definitions
3 Terms and definitions
For the purpose of this document, the terms and definitions established in GB/T 6326 apply.
4 Methods for expressing the size designation for tyres
Passenger car tyres are defined and expressed in terms of tyre size designation and instructions.
Example 1:
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Methods for expressing the size designation for tyres
5 Size designation, dimensions, inflation pressure and load capacity for passenger car tyres
6 Valves
Annex A (Normative) Corresponding Relation between Load Index and Load Capability
Annex B (Normative) Corresponding Relation between Speed Symbol and Maximum Speed
Table 1 80 series radical tyres for passenger cars
Table 2 75 series radical tyres for passenger cars
Table 3 70 series radical tyres for passenger car
Table 4 65 series radical tyres for passenger cars
Table 5 60 series radical tyres for passenger cars
Table 6 55 series radical tyres for passenger cars
Table 7 50 series radical tyres for passenger cars
Table 8 45 series radical tyres for passenger cars
Table 9 40 series radical tyres for passenger cars
Table 10 35 series radical tyres for passenger cars
Table 11 30 series radical tyres for passenger cars
Table 12 25 series radical tyres for passenger cars
Table 13 T-type temporary-use spare tyre
Table 14 Reserved old series of radical tyres for passenger cars
Table 15 Reserved old series of diagonal tyresa for passenger cars
Table 16 Relations between load and inflation pressure of the standard radial tyre for passenger cars
Tale 17 Relations between load and inflation pressure of enhanced radial tyres for passenger cars
Table 18 Minimum inflation pressure adjustment for the radial tyre for passenger cars with speed over 160 km/h
Table 19 Variation percentage of load capability of passenger car tyres with running speed over 210km/h
Table 20 Model of valves for passenger car tyres
Table A.1 Corresponding relation between load index and load capability
Table B.1 Corresponding relation between speed symbol and maximum speed
