Home / Standards / GB 7730.9-88 GB 7730.9-88 Methods for chemical analysis of ferromanganese and blast furnace ferromanganese—The combustion-neutralization titrimetric method for the determination of sulfur content 锰铁及高炉锰铁化学分析方法燃 烧中和滴定法测定硫量 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