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

Standard No.

ISO 20483:2006

Release Date

2006

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 20483:2013

Latest

ISO 20483:2013

Scope

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.

ISO 20483:2006 Referenced Document

• ISO 6540 Maize - Determination of moisture content (on milled grains and on whole grains)*， 2021-01-31 Update
• ISO 712 Cereals and cereal products - Determination of moisture content - Reference method*， 2009-11-01 Update

ISO 20483:2006 history

• 2013 ISO 20483:2013 Cereals and pulses.Determination of the nitrogen content and calculation of the crude protein content.Kjeldahl method
• 2006 ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method