Nitrite nitrogen
Nitrite nitrogen, Total:13 items.
The international standard classification for "Nitrite nitrogen" includes: Soil quality. Pedology .
The Chinese standard classification for "Nitrite nitrogen" includes: Soil and fertilizer in general .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 42485-2023 Soil quality—Determination of nitrate, nitrite and ammonium in soils—Extraction with potassium chloride solution and determination with manual method
- GB/T 42487-2023 Soil quality—Determination of nitrate, nitrite and ammonium in soils—Extraction with potassium chloride solution and determination using automated method with segmented flow analysis
Hubei Provincial Standard of the People's Republic of China
- DB42/T 2120-2023 Determination of ammonia nitrogen, nitrite nitrogen and nitrate nitrogen in soil by gas phase molecular absorption spectrometry
Professional Standard - Environmental Protection
- HJ 634-2012 Soil-Determination of ammonium,nitrite and nitrate by extraction with potassium chloride solution -spectrophotometric methods
Ente Nazionale Italiano di Unificazione
- UNI EN ISO 13395:2000 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
Danish Standards Foundation
- DS 223:1991 Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
- DS 230:1988 Water quality. Nitrate- + nitrite-nitrogen. Reduction by Devardas alloy
Standards Norway
- NS 4745:1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
- NS 4745-1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
- NS 4865:1983 Air quality — Determination of the sum of nitrite- and nitrate-nitrogen in precipitation
Swedish Institute for Standards
- SS 28133:1991 Determination of the sum of the nitrite and nitrate nitrogen content of water
CZ-CSN
- CSN 68 7137-1973 Cupferron (N-Nitroso-N-phenylhyclroxylamine ammotiium salt)
FI-SFS
- SFS 3029 E-1976 In the event of any differences in interpretation of this standard the Finnish version shall take precedence over this translation
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