EN ISO 16634. Cereals, pulses, milled cereal products, oilseeds, oilseed residues and animal feeding stuffs. Determination of total nitrogen and crude protein contents by combustion according to the Dumas principle
EN ISO 16634 谷物、豆类、碾磨谷物制品、油籽、油籽残渣和动物饲料 根据Dumas原理燃烧测定总氮和粗蛋白质含量