On August 18 2023, China’s Ministry of Industry and Information Technology (MIIT) issued the draft of mandatory national standard of Truck Tyres. The document is open for public comments until September 17 of 2023.

This standard specifies the requirements, test methods, judgment principles, marks and implementation requirements for truck tires. It applies to new pneumatic tires for trucks.

This standard replaces GB 9744-2015. Compared with the 2015 edition, the main technical changes it will bring are as follows:

-         Changed the relevant regulations on the main parameters of tires;

-         Deleted the corresponding relationship between speed, air pressure and load;

-         Added the minimum destructive energy value of some tires;

-         Added the performance requirements for tire rolling resistance;

-         Added the relative grip performance requirements of tires on wet road surfaces;

-         Delete other appearance quality requirements for tires and pads;

-         Added the rounding-off requirements for tire rolling resistance performance test methods and test results;

-         Added rounding-off the requirements for the test methods and test results of the relative grip performance of tires on wet roads;

-         Added the principle of judgment;

-         Delete the name of the manufacturer or place of origin, and the factory inspection mark;

-         Added the requirement that special-purpose tires, tires with electronic tags and traction tires should have corresponding marks;

-         Added the implementation requirements of the standard.

At present, the international standards and regulations about truck tires are mainly DOT/FMSS119, FMSS139, ECE 54, and ECE R117. Among them, ECE R117 stipulates the requirements on tire rolling resistance, wet-skid resistance and passing noise limit.All these standards and regulations were used as reference during the revision, however, considering the actual situation in China, the new standard only adopted the requirements for tire rolling and wet skid resistance performances, while abandoned the requirements for tire passing noise.

In terms of implementation date, the standard-setting TC suggested a transition period of 12 months, but the implementation of the rolling resistance  and the wet skid resistance would be given another 12 months of transition period.

Should you need more information about or English translation of this standard, please contact us at: contact@bestao-consulting.com