Home / Standards / GB 4701.5-84 GB 4701.5-84 Methods for chemical analysis of ferrotitanium—The periodate photometric method for the determination of manganese content 钛铁化学分析方法 高碘酸盐光度法测定锰量 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