GB/T 38397-2019 Coal tar—Determination of component content—Gas chromatography-mass spectrometry and thermogravimetry

Scope

This standard specifies the principles for determining the content of compounds in coal tar, reagents and materials, instruments and equipment, sampling, test procedures, result calculation, method precision, and test reports.
This standard is applicable to the determination of the content of common compounds (such as 1,2-dimethylbenzene, phenanthrene, C22 alkanes, 1,2,3-trimethylnaphthalene, 2,4-dimethylphenol, 1-methylnaphthol, 1,3-dimethylnaphthol, etc.) in medium- and low-temperature coal tar and high-temperature coal tar vaporized components before 300 °C. Coal extracts, crude oil, and biomass pyrolysis oil can be used for reference.

Development Information

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