China Coal tar—Determinati GB Standards Search Result |
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GB/T 38397-2019 Coal tar—Determination of component content—Gas chromatography-mass spectrometry and thermogravimetry - 英文版 |
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GB/T 38395-2019 Coal tar—Determination of sulfur and nitrogen content - 英文版 |
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GB/T 38394-2019 Coal tar—Determination of sodium, calcium, magnesium and iron content—Inductively coupled plasma optical emission spectrometry - 英文版 |
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