Home / Standards / GB/T 38397-2019 GB/T 38397-2019 Active Coal tar—Determination of component content—Gas chromatography-mass spectrometry and thermogravimetry 煤焦油 组分含量的测定 气相色谱-质谱联用和热重分析法 Standard Type GBT ICS 71.080 CCS G18 Status 现行 Issue Date 2019-12-31 Implementation 2020-07-01 Responsible Dept 国家标准委 Drafting Unit N/A