1.1 本试验方法涵盖了氧化物的定量测定:甲基叔丁基醚（MTBE）、二异氰酸酯- iso 丙醚（DIPE）、乙基叔丁基醚（ETBE）、叔戊基甲基醚（TAME）、甲醇（MeOH）、乙醇（EtOH）、2-丙醇（2-PrOH）、叔丁醇（t-BuOH）、1-丙醇（1-PrOH）、2-丁醇（2-BuOH）、i-丁醇（i-BuOH）、1-丁醇（1-BuOH）；苯、甲苯和C 8. –C 12 通过气相色谱/傅立叶变换红外光谱（GC/FTIR）测定成品车用汽油中的芳烃和总芳烃。 1.2 本试验方法涵盖以下浓度范围:0.1 % 至20 % 醚和醇的每种成分的体积；0.1 % 至2 % 按体积计的苯；1. % 至15 % 甲苯的体积比，10 % 至40 % 通过 总体积（C 6. –C 12 )芳烃。 1.3 ASTM尚未对炼油厂单个碳氢化合物工艺流（如重整油、流化催化裂化石脑油等）的方法进行测试。 ，用于汽油的混合。 1.4 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 测定汽油中氧化物、苯和芳烃含量的测试方法对于评估产品质量和满足新的燃料法规是必要的。 5.2 本试验方法可用于含有氧化物（醇和醚）作为添加剂的汽油。已确定成品汽油中常见的含氧化合物不会干扰本试验方法对苯和其他芳烃的分析。

1.1 This test method covers the quantitative determination of oxygenates: methyl-t-butylether (MTBE), di- iso propyl ether (DIPE), ethyl-t-butylether (ETBE), t-amylmethyl ether (TAME), methanol (MeOH), ethanol (EtOH), 2-propanol (2-PrOH), t-butanol (t-BuOH), 1-propanol (1-PrOH), 2-butanol (2-BuOH), i-butanol (i-BuOH), 1-butanol (1-BuOH); benzene, toluene and C 8 –C 12 aromatics, and total aromatics in finished motor gasoline by gas chromatography/Fourier Transform infrared spectroscopy (GC/FTIR). 1.2 This test method covers the following concentration ranges: 0.1 % to 20 % by volume per component for ethers and alcohols; 0.1 % to 2 % by volume benzene; 1 % to 15 % by volume for toluene, 10 % to 40 % by  volume total (C 6 –C 12 ) aromatics. 1.3 The method has not been tested by ASTM for refinery individual hydrocarbon process streams, such as reformates, fluid catalytic cracking naphthas, etc., used in blending of gasolines. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. 1.6 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 Test methods to determine oxygenates, benzene, and the aromatic content of gasoline are necessary to assess product quality and to meet new fuel regulations. 5.2 This test method can be used for gasolines that contain oxygenates (alcohols and ethers) as additives. It has been determined that the common oxygenates found in finished gasoline do not interfere with the analysis of benzene and other aromatics by this test method.