surface water total nitrogen
surface water total nitrogen, Total:18 items.
The international standard classification for "surface water total nitrogen" includes: Water quality .
The Chinese standard classification for "surface water 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/T 199-2005 Water quality -- Determination of total-nitrogen Gas-phase molecular absorption spectrometry
Jiangsu Provincial Standard of the People's Republic of China
- DB32/T 4541-2023 Sea water quality evaluation guide for total nitrogen and total phosphorus
Group Standards of the People's Republic of China
- T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method
National Metrological Verification Regulations of the People's Republic of China
- JJG 1094-2013 Water Quality On-line Analyzers of Total Phosphorus and Total Nitrogen
Taiwan Provincial Standard of the People's Republic of China
- CNS 3944-1976 Method for Determination of Total Kjeloahl Nitrogen in Polluted and Waste Water
Professional Standard - Agriculture
- SL/T 788.1-2019 Part 1: Determination of total nitrogen in water quality
RO-ASRO
- STAS 8683-1970 SURFACE AND WASTE WATERS Determination of ainm nia nitrogen
- STAS 8911-1971 SURFACE AND WASTE WATERS Determination of total carbon dioxide
HU-MSZT
- MNOSZ 448-27.lap-1955 Determination of total nitrogen water
PL-PKN
- PN C04576 ArkusZ14-1973 Water and w?sie water Tes?s for nitrogen Calcula?ion of to?al nitrogen
- PN C04576 ArkusZ12-1973 Water and waste water Tests for nitrogenDetermination of total nitrogen of Kjeldahl
NL-NEN
- NEN 6642-1992 Water-Calculation of total nitrogen content
South African Bureau of Standard
- SANS 5922:1978 Total moisture content of coal (nitrogen-oven method)
American Society for Testing and Materials (ASTM)
- ASTM D3590-02 Standard Test Methods for Total Kjeldahl Nitrogen in Water
- ASTM D3590-11 Standard Test Methods for Total Kjeldahl Nitrogen in Water
- ASTM D3590-17 Standard Test Methods for Total Kjeldahl Nitrogen in Water
Danish Standards Foundation
- DS 223:1991 Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
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