Home / Standards / GB 4701.7-85 GB 4701.7-85 Methods for chemical analysis of ferrotitanium—The molybdenum blue spectrophotometric method for the determination of phosphorus content 钛铁化学分析方法 钼蓝分光光度法测定磷量 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