ISO/TS 16634-2:2009
食品.根据杜马原则通过燃烧对总氮含量的测定和粗蛋白含量的计算.第2部分:谷物,豆类和碾磨谷物产品
Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2: Cereals, pulses and milled cereal products