Home / Standards / GB/T 23278.7-2009 GB/T 23278.7-2009 Active Methods for chemical analysis of sodium stannate - Part 7: Determination of alkali insoluble matter - Gravimetric analysis 锡酸钠化学分析方法 第7部分：碱不溶物的测定 重量法 Standard Type GBT ICS 71.040.40 CCS G10 Status 现行 Issue Date 2009-01-05 Implementation 2009-11-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A