Home / Standards / GB/T 8704.9-2009 GB/T 8704.9-2009 Active Ferrovanadium - Determination of manganese content - The potassium periodate oxidation photometric method and flame atomic absorption spectrometric method 钒铁 锰含量的测定 高碘酸钾光度法和火焰原子吸收光谱法 Standard Type GBT ICS 77.100 CCS H11 Status 现行 Issue Date 2009-07-15 Implementation 2010-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A