China 'GB/T 33948.2-2017
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 33948.2-2017
Method for chemical analysis of copper-steel composite metal—Part 2:Determination of zinc content—Na2EDTA titration method 铜-钢复合金属化学分析方法 第2部分:锌含量的测定 Na2EDTA滴定法
Issued Date:2017-07-12
Implemented Date:2018-02-01
Issued by:
The Standardization Administration of the People's Republic of China