Publikuar
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.
WITHDRAWN
SSH 1521-3:1987
PUBLISHED
SSH ISO 2918:1975
60.60
Standard published
1 jan 2000