GB/T 2476-2025Conventional abrasive — Symbols (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document replaces GB/T 2476-2016 "Code for Common Abrasives". Compared with GB/T 2476-2016, except for the structural adjustment and editing In addition to the functional changes, the main technical changes are as follows.

a) Added terms and definitions for various common abrasives (see Chapter 3);

b) Deleted corundum and its code (see Table 1 of the 2016 edition);

c) Added semi-brittle corundum and its code (see Table 1);

d) Added various types of post-processing abrasives and their codes (see 4.2).

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the China Machinery Industry Federation.

This document is under the jurisdiction of the National Technical Committee for Standardization of Abrasives and Grinding Tools (SAC/TC139).

This document was drafted by: Zhengzhou Abrasives and Grinding Tools Research Institute Co., Ltd., Zhengzhou Hongji Grinding Technology Co., Ltd., Pingdingshan Yichengxin Materials Co., Ltd., China National Machinery Industry Corporation, Nanping Yisheng New Materials Technology Co., Ltd., Nanping Yize Abrasives and Grinding Tools Co., Ltd. Technology Co., Ltd.

The main drafters of this document are: Zhang Liang, Yu Jiayin, Bao Hua, Niu Wei, Tian Xiying, Su Yan, Chen Huailiang, Jiang Qingli, and Wu Jianwei.

This document was first issued in 1981, revised for the first time in 1983, revised for the second time in 1994, and revised for the third time in 2016. Fourth revision. Common abrasive code

1 Scope

This document specifies the designations for common abrasives.

This document applies to the marking of common abrasive categories.

2 Normative references

GB/T 16458

3 Terms and Definitions

The terms and definitions defined in GB/T 16458 apply to this document.

4 Common abrasive code