Standard

NS-EN ISO 5983-2:2009

Sept 2009 Published

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Abstract

ISO 5983-2:2009 specifies a method for the determination of nitrogen content of animal feeding stuffs according to the Kjeldahl method, and a method for the calculation of the crude protein content. It is suitable for use as a semi-micro rapid routine method using block digestion, copper catalyst, and steam distillation into boric acid. The method is applicable to the determination of greater than 0,5 % mass fraction Kjeldahl nitrogen in animal feeding stuffs, pet foods, and their raw materials. The method does not measure oxidized forms of nitrogen nor heterocyclic nitrogen compounds. The method does not distinguish between protein nitrogen and non-protein nitrogen.

Document information

Standard from SN
Published: 1 September 2009
Edition: 2009-06
Version: 1
Document type: NAT
ISBN:

ICS 65.120
National Committee CEN/TC 327

Product Relations

Replaces: NS-EN ISO 5983-2:2005
Refers: ISO 6498:1998
Refers: ISO 1871:1975
Adopted from: EN ISO 5983-2:2009 , 0

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