GB/T 46780-2025Road vehicles — Brake lining friction materials — Metal pick-up test method for disc brake linings (English PDF)

3 Terms and definitions

4 Abbreviations

5 Test equipment

6 Test conditions and preparation for the test

7 Test procedure

8 Test report

Foreword

This document was issued on 2 December 2025 by the State Administration for Market Regulation and the Standardization Administration of the People's Republic of China, and has been in force since 1 July 2026.

It is the first edition of this standard.

The document is under the responsibility of the China Building Materials Federation.

Classification: ICS 43.040.40, CCS Q 69.

3 Classification and status

GB/T 46780-2025 is classified under ICS 43.040.40, in the field of road vehicle engineering. ICS is the International Classification for Standards, the same scheme used by ISO and by the national bodies of most countries, which is what allows a Chinese standard to be placed beside its foreign counterparts on subject rather than on number.

Its Chinese Standard Classification code is CCS Q 69. CCS is the domestic scheme, a letter for the sector and two digits for the subject within it, and it is the code by which the standard is filed and searched in China.

The GB/T prefix marks a recommended national standard. It is not, in itself, law: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it. In practice that covers most of the cases in which it will be read — a purchase specification, an inspection agreement or a certification scheme.

The document is under the responsibility of the China Building Materials Federation, which is the body that maintains it and that will answer a formal question about its interpretation.