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ISO 5983-1:2005

Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1: Kjeldahl method

Publication date:   Jun 30, 2005

General information

90.20 Standard under periodical review   Oct 15, 2024

ISO

ISO/TC 34/SC 10 Animal feeding stuffs

International Standard

65.120   Animal feeding stuffs

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Scope

ISO 5983-1:2005 specifies a method for the determination of the nitrogen content of animal feeding stuffs by the Kjeldahl process, and a method for the calculation of the crude protein content.
The method does not measure oxidized forms of nitrogen or heterocyclic nitrogen compounds.
This method does not distinguish between protein nitrogen and non-protein nitrogen. If it is important to determine the content of non-protein nitrogen, an appropriate method should be used.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 5983:1997

NOW

PUBLISHED
ISO 5983-1:2005
90.20 Standard under periodical review
Oct 15, 2024

CORRIGENDA / AMENDMENTS

PUBLISHED
ISO 5983-1:2005/Cor 1:2008