GB/T 3391-2002 in English

《GB/T 3391-2002工业用乙烯中烃类杂质的测定 气相色谱法》由TC63（全国化学标准化技术委员会）归口，TC63SC4（全国化学标准化技术委员会石油化学分会）执行，主管部门为中国石油和化学工业联合会。
1.1本标准规定了用气相色谱法测定工业用乙烯中甲烷、乙烷、丙烷、丁烷、异丁烷、丙烯、乙炔、丙二烯、顺一2一丁烯,1一丁烯、异丁烯、反一2一丁烯、甲基乙炔和1,3一丁二烯。由于本标准不能测定所有可能存在的杂质如CO,CO1,HzO,醇类、NO和拨基硫化物，以及高于癸烷的烃类，所以要全面表征乙烯样品还需要应用其他的试验方法。
1.2本标准并不是旨在说明与其使用有关的所有安全问题。因此，本标准的使用者应事先有责任建立适当的安全与防护措施，并确定适当的规章制度。

Scope

1.1 This standard specifies the determination of methane, ethane, propane, butane, isobutane, propylene, acetylene, propadiene, cis-2-butene, 1-butene, isobutene, trans-2-butene, methylacetylene and 1,3-butadiene. Since this standard cannot determine all possible impurities such as CO, CO₂, H₂O, alcohols, NO and carbonyl sulfide, and hydrocarbons higher than decane, it is necessary to fully characterize Ethylene samples also require the application of other test methods. 1.2 This standard is not intended to address all safety issues associated with its use. Therefore, it is the prior responsibility of the user of this standard to establish appropriate safety and security measures and to determine appropriate regulations.