China 'GB/T 33948.1-2017
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 33948.1-2017
Method for chemical analysis of copper-steel composite metal—Part 1:Determination of copper content—Iodine titration method 铜-钢复合金属化学分析方法 第1部分:铜含量的测定 碘量法
Issued Date:2017-07-12
Implemented Date:2018-02-01
Issued by:
The Standardization Administration of the People's Republic of China