Home / Standards / GB/T 4701.3-2009 GB/T 4701.3-2009 Active Ferrotitanium - Determination of copper content - The DDTC photometric method and the flame atomic absorption spectrometric method 钛铁 铜含量的测定 铜试剂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 2009-07-08 Implementation 2010-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A