DS DS/EN ISO 20483
DS DSEN SO 20483 2007-FEB-09 Cereals and pulses - Determnaton of the ntrogen content and calculaton of the crude proten content - Kjeldahl method
DS DSEN SO 20483 2007-FEB-09 Cereals and pulses - Determnaton of the ntrogen content and calculaton of the crude proten content - Kjeldahl method
This International Standard 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.
NOTE In certain cases, full recovery of the nitrogen in nitrates and nitrites is not possible by this method.