Status : Published (Under review)

This standard was last reviewed and confirmed in 2019. Therefore this version remains current.
Format Language
PDF
Paper
  • CHF96
Convert Swiss francs (CHF) to your currency

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.

Standard first page

Read sample 

Preview this standard in our Online Browsing Platform (OBP)

General information

  • Status
     : Published
    Publication date
     : 2009-06
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 2
    Number of pages
     : 15
  • Technical Committee :
    ISO/TC 34/SC 10
    ICS :
    65.120 
  • RSS updates

Life cycle

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

  2. Store
  3. Standards catalogue
  4. TC
  5. ISO/TC 34/SC 10
  6. ISO 5983-2:2009