China 'GB/T 6730.37-2017
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 6730.37-2017
Iron ores—Determination of cobalt content—4-((5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method 铁矿石 钴含量的测定 4-[(5-氯-2-吡啶)偶氮]-1,3-二氨基苯分光光度法
Issued Date:2017-09-07
Implemented Date:2018-06-01
Issued by:
The Standardization Administration of the People's Republic of China