Home / Standards / GB 223.59-87 GB 223.59-87 Steel and alloy—Determination of phosphorus content—Antimony phosphomolybdate blue spectrophotometric method 钢铁及合金化学分析方法 锑磷钼蓝光度法测定磷量 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A