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Kommittébeteckning: SIS/TK 435/AG 04 (Spannmål)
Källa: CEN
Svarsdatum: den 16 dec 2025
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 This part of ISO 16634 specifies a method for the determination of the total nitrogen content and the calculation of the crude protein content of cereals, pulses and cereal coproducts (e.g. wheat flour, wheat starch, peas proteins, wheat gluten, semolina). This method, like the Kjeldahl method (see References [1] and [6]), does not distinguish between protein nitrogen and non-protein nitrogen. For the calculation of the protein content, various conversion factors are used (see 3.2).