Published
The method consists in extracting of a test portion with hot water, precipitating of proteine and filtrating. In presence of nitrits formation of a red cloured complex by adding sulfanilamide and naphthylethylenediamine hydrochloride, and photometric measurement at a wavelength of 538 nm.
PUBLISHED
SRPS ISO 2918:1999
90.93
Standard confirmed
Feb 20, 2024
MINISTARSTVO POLJOPRIVREDE, ŠUMARSTVA I VODOPRIVREDE
МИНИСТАРСТВО ПОЉОПРИВРЕДЕ И ЗАШТИТЕ ЖИВОТНЕ СРЕДИНЕ