GB/T 1773-2025Flake silver powder (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents". Drafting.

This document replaces GB/T 1773-2008 "Flake Silver Powder". Compared with GB/T 1773-2008, the main differences are structural adjustments and editorial changes.

In addition, the main technological changes are as follows.

a) Added grades PAg-S6.0 and PAg-S10.0 for flake silver powder, and deleted grade PAg-S8 (see 4.1, 3.1 in the 2008 edition);

b) Product labeling has been changed (see 4.2, 3.1 of the 2008 edition);

c) Limits for the chemical impurity elements "Ru, Ca, Mn, Cr, Mg, Zn, Co" have been added (see 5.1);

d) The particle size distribution, specific surface area, loose density, tapped density, loss on burn, and moisture content range of PAg-S6.0 and PAg-S10.0 were increased. Enclosure (see 5.2);

e) The moisture content test method has been changed, replacing "loss on burn" with "moisture content" (see 6.7, 4.6 of the 2008 edition);

f) The inspection and acceptance procedures for flake silver powder have been changed (see 7.1, 5.1 in the 2008 edition);

g) Sampling requirements for testing flake silver powder have been added (see 7.4);

h) The arbitration sampling method for flake silver powder has been changed (see 7.5, 5.1.2 of the 2008 edition);

i) Rounding of test results has been added, and the rounded value comparison method is used for determination (see 7.6.1);

j) Changes were made to the markings, packaging, shipping, storage, and accompanying documentation (see 8.3, 6.2 of the 2008 edition);

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China Nonferrous Metals Industry Association.

This document is under the jurisdiction of the National Technical Committee on Standardization of Nonferrous Metals (SAC/TC243).

This document was drafted by: Guizhou Research Institute of Electronic Materials (Yunnan) Co., Ltd., Xi'an Hongxing Electronic Paste Technology Co., Ltd., and GRINM Advanced Materials Co., Ltd.

New Materials Co., Ltd., Jinchuan Group Co., Ltd., GRINM Nanomaterials (Beijing) Co., Ltd., Northwest Nonferrous Metals Research Institute, Nonferrous Metals Metal Technology and Economic Research Institute Co., Ltd., Yunnan Precious Metals New Materials Holding Group Co., Ltd., and China Shipbuilding Huanggang Precious Metals Co., Ltd.

The company, Shandong GRINM Advanced Materials Co., Ltd., Ningxia Zhongse New Materials Co., Ltd., Dongfang Electric Clean Energy Technology Chengdu... Co., Ltd., Dongfang Electric Clean Energy Technology Co., Fang Electric Fine Electronic Materials (Deyang) Co., Ltd.

The main drafters of this document are: Li Yanhua, Huang Fuchun, Li Junpeng, Li Chenhao, Zhao Ying, Guan Junqing, Ma Qian, Wang Jianwei, Zheng Jing, and Xiang Lei.

Zhu Wuxun, Zhang Shenghuan, He Xin, Liu Fei, Liu Ping, Su Shaojing, Xing Qisi, Wu Gaopeng, He Jinjiang, Shi Xingwang, Peng Dai, Li Zhiyu, Chen Xuegang, Gan Jun Wang Ning, Luo Hui, Wang Ke, Yao Yuan, Zhang Xiaojie, Li Wei, Yang Bowen, Mo Jianguo, Luo Yun, Liu Jisong.

This document was first published in 1988, revised for the first time in 1995, revised for the second time in 2008, and this is the third revision. flake silver powder

1 Scope

This document specifies the classification and marking, technical requirements, test methods, inspection rules, labeling, packaging, transportation, storage, and accompanying procedures for flake silver powder.

Line documents and order contents.

This document applies to flake silver powder for electronic pastes.

2 Normative references

GB/T 191

GB/T 1479.3

GB/T 1774-2009

GB/T 4309

GB/T 5162

GB/T 8170

GB/T 19077

GB/T 19445

GB/T 36590-2018

3 Terms, Definitions and Symbols

4 Classification and Labeling