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ISO 8151:1987Withdrawn

Dried milk — Determination of nitrate content — Method by cadmium reduction and spectrometry (Screening method)

Lait sec — Détermination de la teneur en nitrates — Méthode par réduction au cadmium et spectrométrie (Méthode rapide)

Abstract / scope

Describes a method, the principle of which consists in dissolving the dried milk in water, precipitating the fat and proteins, filtering and reducing the nitrate to nitrite in a portion of the filtrate by means of zinc powder and cadmium ion.