China 'GB/T 6150.9-2009
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 6150.9-2009
Methods for chemical analysis of tungsten concentrates - Determination of copper content - Flame atomic absorption spectrometry 钨精矿化学分析方法 铜量的测定 火焰原子吸收光谱法
Issued Date:2009-10-30
Implemented Date:2010-06-01
Issued by:
The Standardization Administration of the People's Republic of China