Home / Standards / GB/T 6987.7-2001 GB/T 6987.7-2001 Methods for chemical analysis of aluminium and aluminium alloys — Determination of manganese content by potassium periodate spectrophotometric method 铝 及铝合金化学分析方法 高碘酸钾分光光度法测定锰量 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A