KS L ISO 20565-1-2012(2017) 含铬耐火制品和含铬原料的化学分析(X射线荧光法的替代方法)第1部分:仪器、试剂、溶解和重量法二氧化硅的测定
Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials(alternative to the X-ray fluorescence method)-Part 1:Apparatus, reagents, dissolution and determination of grav