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New Standards on Test Methods for Car Tires GB/T 4502 and GB/T 521

5. July 2023

The Chinese National Tire Rim Standardization Technical Committee (TC19 for short) and the National Tire Rim Standardization Technical Committee Auto Industry and Agricultural Machinery Tire Rim Branch (TC19SC1 for short) have announced two new GB standards concerning test methods for car tires, both of which are to be implemented this year. Specifically, they are GB/T 4502-2023 Laboratory test methods for passenger car tire capabilities (this supersedes the previous version GB/T 4502-2016) and GB/T 521-2023 Test Method of Measuring Peripheral Dimensions for Tires (which supersedes GB/T 521-2012). Car tires require CCC certification to be approved for import and sale in China.

GB/T 4502-2023 was published on May 23, 2023, and is scheduled to take effect on December 1, 2023.

GB/T 521-2023 was announced on March 17, 2023, and is scheduled to be implemented on October 1, 2023.

As soon as details of the changes in the new version GB/T 4502-2023 become available, we will inform you on our news page.

For GB/T 521-2023, in addition to the structural adjustments and editorial changes, the following changes from the previous version, among others, are included:

  • Add “Electric bicyclc tire.s and rickshaw tires” in the scope of application
  • Change the accuracy requirements for the tire Pressure gauge
  • Add “non-contact measuring instruments” and related requirements
  • Add specific provisions on measuring inflation pressure
  • Add measurement method for “overall tire width”
  • Change the provisions on the number of measurement Points for “section Width, groove depth, tread wear mark height”
  • Change the Value of “n” from “3.14” to “3.1416”

For more information on how CCC certification, the CCC Self-Declaration and voluntary CCAP or CQC certification may affect your company, or for more information about CCC certification in general, please visit our News Section where you will find current updates twice a week.

Please do not hesitate to contact us for further details and consultation. You can contact us via email, Chat, or call us (UK: +44 2071931135, Europe: +49 69 2713769150, US: +1 773 654-2673).

You can also check out our free CCC-Brochure, which can be downloaded as a PDF file. The brochure also contains information on the CCC Self-Declaration and the voluntary CQC- and CCAP-Certification).

MPR Author

About the author: Verena Numssen is managing director of MPR China Certification GmbH
Publisher: MPR China Certification GmbH

Tel.: +49 69 271 37 69 150