Starches and derived products. Determination of nitrogen content by the kjeldahl method. Spectrophotometric method.
淀粉及其制品。用克耶达法测定氮含量。分光光度法。
Meat, meat product and fishery products - Determination of nitrogen content and calculation of the protein content - Kjeldahl method.
肉,肉制品和水产品.氮含量的测定和蛋白质的计算.基式定氮法
Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle.
牛奶和奶制品.测定氮含量.根据Dumas原理使用常规燃烧法