Home / Standards / GB/T 1508-2002 GB/T 1508-2002 Active Manganese ores--Determination of total iron content--Potassium dichromate titrimetric method and 1，10-phenanthroline spectrophotometric method 锰矿石 全铁含量的测定 重铬酸钾滴定法和邻菲啰啉分光光度法 Standard Type GBT ICS 73.060.20 CCS D32 Status 现行 Issue Date 2002-09-11 Implementation 2003-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A