China 'GB/T 20975.33-2020
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 20975.33-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 33:Determination of potassium content—Flame atomic absorption spectrometric method 铝及铝合金化学分析方法 第33部分:钾含量的测定 火焰原子吸收光谱法
Issued Date:2020
Implemented Date:2021/10/1
Issued by:
The Standardization Administration of the People's Republic of China