Published
The method consists in extracting of a test portion with hot water, precipitating of proteins and filtrating. Reduction of the extracted nitrates into nitrites by metallic cadmium. Formation of a red colouration by adding of sulfanilamide and nphthyl ethylenediamine hydrochloride and photometric measurement at a wavelength of 538 nm.
PUBLISHED
SRPS ISO 3091:1999
90.93
Standard confirmed
Dec 31, 2012
MINISTARSTVO POLJOPRIVREDE, ŠUMARSTVA I VODOPRIVREDE
МИНИСТАРСТВО ПОЉОПРИВРЕДЕ И ЗАШТИТЕ ЖИВОТНЕ СРЕДИНЕ