1.1 本试验方法包括通过气相色谱法将从水中或海滩回收的石油与来自可疑来源的石油进行比较 ( 1- 3. ) . 2. 这些油包括馏出燃料、润滑油和原油。所述试验方法用于使用含硫物质的单检测（火焰离子化）或双检测（火焰离子化和火焰光度法）进行毛细管柱分析。 1.2 该测试方法为耐风化的精细结构的关键检查提供了高分辨率。硫组分的火焰光度检测是火焰离子化检测在水性石油识别中的辅助手段，而不是替代手段 ( 4- 12 ) . 因此，火焰光度检测是可选的。 1.3 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。 1.4 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。 1.5 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====== 4.1 回收油的识别是通过与已知油进行比较来确定的，因为它们可能与特定的回收油有关系。已知的油是从可疑来源收集的。此类已知油的样品 必须 收集并与未知一起提交以供分析。目前，无法自行识别未知油的来源（例如，从已知油库中）。 4.2 除了火焰离子化检测器外，还使用火焰光度检测器提供了相同油的第二个独立轮廓，即通过双检测的单次分析可以获得更多信息。 4.3 需要许多密切的相似性（在采样和分析的不确定性范围内）来建立超越合理怀疑的身份。所描述的分析将区分许多样本，但不是所有样本。对于这种方法无法明确识别一对样本的情况，以及需要额外比较以加强结论的重要情况，将需要进行其他分析（参考实践） D3415 ). 特别是练习 D5739 对于此类情况很有用。

1.1 This test method covers the comparison of petroleum oils recovered from water or beaches with oils from suspect sources by means of gas chromatography ( 1- 3 ) . 2 Such oils include distillate fuel, lubricating oil, and crude oil. The test method described is for capillary column analyses using either single detection (flame ionization) or dual detection (flame ionization and flame photometric) for sulfur containing species. 1.2 This test method provides high resolution for critical examination of fine structure that is resistant to weathering. The flame-photometric detection for sulfur components is an adjunct, not a substitute, for flame-ionization detection in the identification of waterborne petroleum oils ( 4- 12 ) . For this reason, flame photometric detection is optional. 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. 1.5 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 ====== 4.1 Identification of a recovered oil is determined by comparison with known oils, selected because of their possible relationship to the particular recovered oil. The known oils are collected from suspected sources. Samples of such known oils must be collected and submitted along with the unknown for analysis. At present, identification of the source of an unknown oil by itself cannot be made (for example, from a library of known oils). 4.2 The use of a flame-photometric detector in addition to the flame-ionization detector provides a second, independent profile of the same oil, that is, significantly more information is available from a single analysis with dual detection. 4.3 Many close similarities (within uncertainties of sampling and analysis) will be needed to establish identity beyond a reasonable doubt. The analyses described will distinguish many, but not all samples. For cases in which this method does not clearly identify a pair of samples, and for important cases where additional comparisons are needed to strengthen conclusions, other analyses will be required (refer to Practice D3415 ). In particular, Practice D5739 is useful for such cases.