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Norm
ISO 3091:1975
Ausgabedatum: 1975 09 01
Meat and meat products — Determination of nitrate content (Reference method)
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 metalli...
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Herausgeber:
International Organization for Standardization
Format:
Digital | 5 Seiten
Sprache:
Englisch
ICS
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.