GSO ISO 5983-2:2007
动物饲料氮含量的测定和粗蛋白含量的计算 第2部分：蒸汽蒸馏/质量消解法

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

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标准号

GSO ISO 5983-2:2007

发布

2007年

发布单位

GSO

当前最新

GSO ISO 5983-2:2007

 

 

适用范围

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 concerns 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 % 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

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