Home / Standards / GB/T 3654.3-1983 GB/T 3654.3-1983 Abolished Methods for chemical analysis of ferroniobium--The gravimetric method for the determination of silicon content 铌铁化学分析方法 重量法测定硅量 Standard Type GBT ICS 77.100 CCS H11 Status 废止 Issue Date 1983-05-02 Implementation 1984-03-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A