1.1 本试验方法涵盖丁二烯-1,3纯度和杂质（如丙烷、丙烯、异丁烷、， n -丁烷、丁烯-1、异丁烯、丙二烯、， trans公司 -丁烯-2， cis公司 -用气相色谱法测定聚合级丁二烯中的丁烯-2、丁二烯-1,2、戊二烯-1,4和甲基、二甲基、乙基和乙烯基乙炔。通过适当的ASTM程序测量包括丁二烯二聚体、羰基、抑制剂和残留物在内的杂质，并将结果用于归一化色谱法获得的成分分布。 注1: 商业丁二烯中存在的其他杂质必须进行校准和分析。在本试验方法的合作工作中，未对其他杂质进行试验。 注2: 本试验方法可用于检查戊二烯-1,4和其他C 5. s代替试验方法 D1088号 . 1.2 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。 1.3 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和健康实践，并确定监管限制的适用性。 有关特定警告声明，请参阅 6.1 和 9.3 . ====意义和用途====== 4.1 列出的微量碳氢化合物可能对丁二烯的商业用途产生影响。本试验方法适用于过程质量控制和设定规范。

1.1 This test method covers the determination of butadiene-1,3 purity and impurities such as propane, propylene, isobutane, n -butane, butene-1, isobutylene, propadiene, trans -butene-2, cis -butene-2, butadiene-1,2, pentadiene-1,4, and, methyl, dimethyl, ethyl, and vinyl acetylene in polymerization grade butadiene by gas chromatography. Impurities including butadiene dimer, carbonyls, inhibitor, and residue are measured by appropriate ASTM procedures and the results used to normalize the component distribution obtained by chromatography. Note 1: Other impurities present in commercial butadiene must be calibrated and analyzed. Other impurities were not tested in the cooperative work on this test method. Note 2: This test method can be used to check for pentadiene-1,4 and other C 5 s instead of Test Method D1088 . 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 6.1 and 9.3 . ====== Significance And Use ====== 4.1 The trace hydrocarbon compounds listed can have an effect in the commercial use of butadiene. This test method is suitable for use in process quality control and in setting specifications.