Water Quality Total Nitrogen
Water Quality Total Nitrogen, Total:7 items.
The international standard classification for "Water Quality Total Nitrogen" includes: Water quality .
The Chinese standard classification for "Water Quality Total Nitrogen" includes: Analysis methods for toxic substances in water .
Heilongjiang Provincial Standard of the People's Republic of China
- DB23/T 3310-2022 Water quality total nitrogen monitoring technical specification
Professional Standard - Environmental Protection
- HJ 667-2013 Water quality-Determination of total nitrogen by continuous flow analysis(CFA) and N-(1-naphthyl)ethylene diamine dihydrochloride
- HJ 668-2013 Water quality-Determination of total nitrogen by flow injection analysis（FIA）and N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometry
- 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
Professional Standard - Agriculture
- SL/T 788.1-2019 Part 1: Determination of total nitrogen in water quality
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