標(biāo)準(zhǔn)號：BS EN ISO 5983-2-2009
中文標(biāo)準(zhǔn)名稱：動物飼料.含氮量的測定和粗蛋白含量的計(jì)算.第2部分:分塊消化/蒸汽蒸餾法(ISO 5983-2-2009)
英文標(biāo)準(zhǔn)名稱：Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion and steam distillation method (ISO 5983-2:2009)
標(biāo)準(zhǔn)類型：B46
發(fā)布日期：2009/7/31 12:00:00
實(shí)施日期：2009/7/31 12:00:00
中國標(biāo)準(zhǔn)分類號：B46
國際標(biāo)準(zhǔn)分類號：65.120
引用標(biāo)準(zhǔn)：ISO 1871;ISO 6498
適用范圍：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-protein nitrogen.