Home / Standards / GB/T 7999-2015 GB/T 7999-2015 Active Optical emission spectrometric analysis method of aluminum and aluminum alloys 铝及铝合金光电直读发射光谱分析方法 Standard Type GBT ICS 77.040.01 CCS H12 Status 现行 Issue Date 2015-09-11 Implementation 2016-04-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A