Determination of total nitrogen by ultraviolet spectrophotometry
Determination of total nitrogen by ultraviolet spectrophotometry, Total:3 items.
The international standard classification for "Determination of total nitrogen by ultraviolet spectrophotometry" includes: Water quality .
The Chinese standard classification for "Determination of total nitrogen by ultraviolet spectrophotometry" includes: Analysis methods for toxic substances in water .
Professional Standard - Environmental Protection
- HJ 636-2012 Water quality. Determination of total nitrogen. Alkaline potassium persulfate digestion UV spectrophotometric method
- HJ/T 199-2005 Water quality -- Determination of total-nitrogen Gas-phase molecular absorption spectrometry
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 11894-1989 Water quality--Determination of total nitrogen--Alkaline potassium persulfate digestion-UV spectro photometric method
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