1 Scope
This standard specifies the test conditions, test apparatus and their precision requirements, test procedures and test records of wear performance for agricultural tyres.
This standard is applicable to the determination of wear performance of agricultural drive axle 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 1192 Technical specification of agricultural tyres
GB/T 2979 Size designation, dimensions, inflation pressure and load capacity for agricultural tyres
3 Test conditions
3.1 Test temperature
The test temperature shall be (30 ± 5) ℃.
3.2 Test drum
The double drum shall have an outer diameter of 300 mm, with an allowable deviation of ± 3 mm.
3.3 Test pressure
During the test, the inflation pressure of tyres shall be the maximum pressure corresponding to the tyre ply rating (PR) specified in GB/T 1192 and GB/T 2979, with an allowable deviation of ± 10 kPa.
3.4 Test load
The test load shall be selected from those specified in Table 1, with an allowable deviation of ± 10 kg.
Foreword i
1 Scope
2 Normative references
3 Test conditions
4 Test apparatus and their precision requirements
5 Test procedures
6 Test records
