DIN 54387-2:2016 陶瓷原料和基礎材料檢驗碳化硼、氮化硼、金屬硼化物和單質硼的化學分析第2部分:總硼、可溶硼化合物、B4C中HNO3可溶硼、H2O2可溶和不溶分數維的測定
Testing of ceramic raw and basic materials - Chemical analysis of boron carbide, boron nitride, metal borides and elemental boron - Part 2: Determination of total boron, soluble boron compounds, HNO3-soluble boron in B4C, H2O2 soluble and insoluble fracti