Home / Standards / GB/T 223.61-1988 GB/T 223.61-1988 Active Methods for chemical analysis of iron，steel and alloy--The ammonium phosphomolybdate volumetric method for the determination of phosphorus content 钢铁及合金化学分析方法 磷钼酸铵容量法测定磷量 Standard Type GBT ICS 77.080 CCS H11 Status 现行 Issue Date 1988-02-05 Implementation 1989-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A