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.
Status: WithdrawnPublication date: 2006-11
Edition: 1Number of pages: 13
Technical Committee: ISO/TC 34/SC 4 Cereals and pulses