GB/T 38397-2019煤焦油组分含量的测定气相色谱-质谱联用和热重分析法标准
英文:Coal tar—Determination of component content—Gas chromatography-mass spectrometry and thermogravimetry GB/T 38397-2019...
英文:Coal tar—Determination of component content—Gas chromatography-mass spectrometry and thermogravimetry GB/T 38397-2019...