China 'GB/T 7731.14-2008
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 7731.14-2008
Ferrotungsten - Determination of lead content - The polarographic method and inductively coupled plasma-atomic emission spectrometry 钨铁 铅含量的测定 极谱法和电感耦合等离子体原子发射光谱法
Issued Date:2008-05-13
Implemented Date:2008-11-01
Issued by:
The Standardization Administration of the People's Republic of China