China 'GB/T 1819.7-2017
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 1819.7-2017
Methods for chemical analysis of tin concentrates—Part 7:Determination of bismuth content—Flame atomic absorption spectrometric method 锡精矿化学分析方法 第7部分:铋量的测定 火焰原子吸收光谱法
Issued Date:2017-09-29
Implemented Date:2018-04-01
Issued by:
The Standardization Administration of the People's Republic of China