Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 40394-2021 |
Determination of trace trimethylamine in methanol for industrial use—Gas chromatography-mass spectrometry 工业用甲醇中痕量三甲胺含量的测定 气相色谱质谱联用法 |
China National Standards use—Gas |
English PDF |
GB/T 6017-2021 |
Determination of purity and hydrocarbon impurities of butadiene for industrial use—Gas chromatographic method 工业用丁二烯纯度及烃类杂质的测定 气相色谱法 |
China National Standards use—Gas |
English PDF |
GB/T 6015-2021 |
Determination of trace dimer and residual extraction agent of butadiene for industrial use—Gas chromatographic method 工业用丁二烯中微量二聚物和残留抽提剂的测定 气相色谱法 |
China National Standards use—Gas |
English PDF |
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