DS/EN ISO 5983-2:2009
Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion and steam distillation method

Standard No.

DS/EN ISO 5983-2:2009

Release Date

2009

Published By

Danish Standards Foundation

Latest

DS/EN ISO 5983-2:2009

Replace

DS/EN ISO 5983-2:2005

Scope

This part of ISO 5983 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-prote

DS/EN ISO 5983-2:2009 history

• 2009 DS/EN ISO 5983-2:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion and steam distillation method
• 0000 DS/EN ISO 5983-2:2005