GB/T 4699.3-2007
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 4699.3-2007
Ferrochromium, silicochromium and nitrogen-bearing ferrochromium -Determination of phosphorus content - Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method 铬铁、硅铬合金和氮化铬铁 磷含量的测定 铋磷钼蓝分光光度法和钼蓝分光光度法
Issued Date:2007-10-25
Implemented Date:2008-04-01
Issued by:
The Standardization Administration of the People's Republic of China