GB/T 42122-2022 (English Version) PDF

Standard No.: GB/T 42122-2022
Language: Chinese, Available in English version
Release Date: 2022
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 42122-2022

Scope: This document describes a method for the determination of the abrasion resistance of rubber using a modified Lamborn Abrasion Tester. The disc-shaped rubber sample and the grinding wheel are pressed against each other under a specified load, and rotate at different linear speeds through an independent drive system. Different speeds cause relative slippage between the sample and the grinding wheel, resulting in wear loss. The test results are expressed as the volume loss per unit wear time or unit stroke and (or) the wear resistance index compared with the reference compound. The improved Lamborn abrasion testing machine can independently set various abrasion conditions, such as slip rate, linear velocity and load, and this method is suitable for evaluating various rubber products, especially tire compounds, under various harsh conditions. An example of a test for tire tread compounds is given in Appendix A.

GB/T 42122-2022 Referenced Document

GB/T 2484 Bonded Abrasive Shape Types, Markings and Symbols*， 2023-11-27 Update
GB/T 2941 Rubber. General procedures for preparing and conditioning test pieces for physical test methods
GB/T 533 Rubber,vulcanized or thermoplastic.Determination of density
ISO 18899:2013 Rubber - Guide to the calibration of test equipment
JB/T 7498 coated abrasive sandpaper

2022 GB/T 42122-2022 Rubber,vulcanized or thermoplastic—Determination of abrasion resistance（the method of Improved Lambourn test machine）