ISO 20483:2006
Subscribe to updates

Cereals and pulses -- Determination of the nitrogen content and calculation of the crude protein content -- Kjeldahl method

This standard has been revised by: ISO 20483:2013


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.


  • Document published on: 2006-11
    Edition: 1 (Monolingual) ICS: 67.060
    Status: Withdrawn Stage: 95.99 (2013-11-19)
    TC/SC: ISO/TC 34/SC 4 Number of Pages:
  • Revised by: ISO 20483:2013

  • No corrigenda or amendments available

Related standards

Got a question?

Check out our FAQs

Email Customer Care
or call us on +41 22 749 08 88
09:00 – 12:00, 14:00 – 17:00 (UTC+1).