Draft Document - Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 % to 45 % of ZrO<(Index)2> (alternative to the X-ray fluorescence method) - Part 1: Apparatus, reagents and dissolution (ISO/DIS 21079-1:2006); German version prEN ISO 21079-1:2006
文件草案——含氧化铝、氧化锆和二氧化硅耐火材料的化学分析——含5%至45%ZrO的耐火材料(索引)2>(X射线荧光法的替代方法)——第1部分:仪器、试剂和溶解(ISO/DIS 21079-1:2006);德文版prEN ISO 21079-1:2006