China 'GB/T 20975.30-2019
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 20975.30-2019
Methods for chemical analysis of aluminium and aluminium alloys—Part 30:Determination of hydrogen content—Heating extraction-thermal conductivity method 铝及铝合金化学分析方法 第30部分:氢含量的测定 加热提取热导法
Issued Date:2019
Implemented Date:2020-5-1
Issued by:
The Standardization Administration of the People's Republic of China