中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 23943-2009
Inorganic chemicals for industrial use - General method for the determination of chromium(Ⅵ) content - 1,5-diphenylcarbohydrazide spectrophotometric method 无机化工产品中六价铬含量测定的通用方法 二苯碳酰二肼分光光度法
Issued Date:2009-06-02
Implemented Date:2010-02-01
Issued by:
The Standardization Administration of the People's Republic of China