ISO 20483:2013 Preview
Cereals and pulses -- Determination of the nitrogen content and calculation of the crude protein content -- Kjeldahl method
ISO 20483:2013 specifies a method for the determination of the nitrogen content of cereals, pulses and derived products, according to the Kjeldahl method, and a method for calculating the crude protein content. The method does not distinguish between protein nitrogen and non-protein nitrogen.
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