GB/T 521-2023: Test methods for measuring peripheral dimensions of tyres

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Scope

This document describes the measurement methods for peripheral dimensions of
pneumatic tyres (cover tyre, inner tube and pad belt), including measurement tools and
their accuracy requirements, measurement conditions, measurement methods, data
calculation and processing, and test reports.
This document is applicable to passenger car tyres, truck tyres, agricultural tyres,
engineering machinery tyres, industrial vehicle pneumatic tyres, motorcycle tyres,
electric bicycle tyres and cycle tyres.

Basic Data

Standard ID	GB/T 521-2023 (GB/T521-2023)
Description (Translated English)	Test methods for measuring peripheral dimensions of tyres
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G41
Classification of International Standard	83.160.01
Word Count Estimation	10,195
Date of Issue	2023-03-17
Date of Implementation	2023-10-01
Older Standard (superseded by this standard)	GB/T 521-2012
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration