NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 7469-1987
Water quality--Determination of the total mercury--Potassium permanganate-pootassium peralfate descomposed method--Dithizone spectrophotometric method 水质 总汞的测定 高锰酸钾-过硫酸钾消解法 双硫腙分光光度法
Issued Date:1987-03-06
Implemented Date:1987-08-01
Issued by:
The Standardization Administration of the People's Republic of China