Home / Standards / GB/T 6730.56-2019 GB/T 6730.56-2019 Active Iron ores—Determination of aluminum content—Flame atomic absorption spectrometric method 铁矿石 铝含量的测定 火焰原子吸收光谱法 Standard Type GBT ICS 73.060.10 CCS D31 Status 现行 Issue Date 2019-08-30 Implementation 2020-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A