ISO 20483:2006

Cereals and pulses — Determination of the nitrogen content and calculation of the crude protein content — Kjeldahl method ISO 20483:2006

Publication date:   Oct 20, 2006

Scope

ISO 20483:2006 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. If it is important to determine the non-protein nitrogen content, an appropriate method can be applied.