DIN EN ISO 16634-2 (2016-11)现行
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 (ISO 16634-2:2016)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
