ISO 3091:1975
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Meat and meat products — Determination of nitrate content (Reference method)
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English, French
09-01-1975
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.
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