GB/T 521-2003
Test method of measuring peripheral dimensions for tyres

Be replaced

Standard No.

GB/T 521-2003

Language

Chinese

Release Date

2003

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Replace By

GB/T 521-2012

Lastest

GB/T 521-2023

Scope

This standard specifies the measurement tools and accuracy requirements, measurement conditions, measurement methods, data calculation and processing, and test reports for the outer edge dimensions of tires (tyres, inner tubes and pads). This standard applies to all new passenger car tires, truck tires, agricultural tires, off-the-road tires, industrial vehicle pneumatic tires and motorcycle tires.

GB/T 521-2003 history

• 2023 GB/T 521-2023 Measurement method of tire outer edge size
• 2012 GB/T 521-2012 Test method of measuring peripheral dimensions for tyres
• 2003 GB/T 521-2003 Test method of measuring peripheral dimensions for tyres
• 1993 GB/T 521-1993 Method of measuring tyre peripheral dimensions