1.1 本试验方法涵盖了通过多维气相色谱法和火焰离子化检测定量测定C2、C3、C4和C5基质中有机含氧化合物的气相色谱程序。当碳氢化合物基质的最终沸点不大于200时，该试验方法适用 °C。含氧化合物包括但不限于 表1 含氧化合物的线性工作范围为0.50 mg/kg至100 毫克/千克。 1.2 该试验方法旨在确定碳氢化合物基质中每种含氧化合物的质量浓度。含氧化合物的鉴定通过参考标准和柱洗脱保留顺序来确定。 1.3 以国际单位制表示的数值应视为标准。 本标准不包括其他计量单位。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4.1 建议用户就本试验方法程序和相关活动的安全操作进行液化石油气安全培训。在线学习培训课程“液化石油气取样安全”可在ASTM.org网站上获得。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 含氧化合物的测定在乙烯、丙烯、1-3丁二烯、C4烃和C5烃的制造中是重要的。醇、醚、醛和酮是这些碳氢化合物中的微量杂质。氧合物降低了下游聚合过程中的催化剂活性。

1.1 This test method covers the gas chromatographic procedure for the quantitative determination of organic oxygenates in C2, C3, C4, and C5 matrices by multidimensional gas chromatography and flame ionization detection. This test method is applicable when the hydrocarbon matrices have a final boiling point not greater than 200 °C. Oxygenate compounds include, but are not limited to, those listed in Table 1 . The linear working range for oxygenates is 0.50 mg/kg to 100 mg/kg. 1.2 This test method is intended to determine the mass concentration of each oxygenate in the hydrocarbon matrix. Oxygenate compound identification is determined by reference standards and column elution retention order. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4.1 The user is advised to obtain LPG safety training for the safe operation of this test method procedure and related activities. The eLearning training course “Liquefied Petroleum Gases Sampling Safety” is available on the ASTM.org website. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The determination of oxygenates is important in the manufacture of ethene, propene, 1-3 butadiene, C4 hydrocarbons, and C5 hydrocarbons. Alcohols, ethers, aldehydes, and ketones are trace impurities in these hydrocarbons. Oxygenates decrease catalyst activity in downstream polymerization processes.