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ISO 20483:2013

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

Nov 19, 2013

General information

90.93     Jun 20, 2025

ISO

ISO/TC 34/SC 4

International Standard

67.060  

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Scope

ISO 20483:2013 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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 20483:2006

NOW

PUBLISHED
ISO 20483:2013
90.93 Standard confirmed
Jun 20, 2025