1.1 本试验方法包括测定蒸馏低于315的石油馏分中总芳烃、总烯烃和总饱和烃的烃类类型 °C.无法分析含有干扰色谱带读数的深色成分的样品。 注1: 用于测定0.3以下的烯烃 % 按体积计算，还可以使用其他测试方法，例如测试方法 D2710 . 1.2 本试验方法适用于全沸点产品。 合作数据已确定精度声明不适用于315附近的窄沸点石油馏分 °C极限。此类样品未正确洗脱，结果不稳定。 1.3 本试验方法也适用于汽车火花点火式发动机燃料，该燃料为含或不含混合氧化物的汽油，例如醇类和醚类（例如MTBE、乙醇），其中汽油是混合物中的主要体积成分。 1.4 尚未确定本试验方法对非石油化石燃料（如煤、页岩或焦油砂）衍生产品的适用性，精度声明可能适用于也可能不适用于此类产品。 1.5 该试验方法有两个精度声明，如表3和表4所示。 1.5.1 表3适用于不含含氧混合成分的燃料，其试验方法浓度工作范围为5 % 至99 % 按体积计的芳烃，1 % 至55 % 按体积计的烯烃和1 % 至95 % 按体积计，石油馏分中的饱和烃，最终沸点<315 °C。它可能适用于也可能不适用于含有铅抗爆混合物的汽车汽油。 1.5.2 表4精度源自仅包含混合含氧（例如MTBE、乙醇）和非含氧汽车火花点火式发动机燃料（汽油）的ILS，并且仅适用于13%的试验方法浓度工作范围 % 至40 % 按体积计的芳烃，4 % 至33 % 按体积计的烯烃和45 % 至68 % 体积饱和。 1.5.3 不在表4包含有效试验结果报告浓度范围内的非含氧汽车火花点火发动机燃料（汽油）可使用表3中的精度及其适用浓度范围。 1.6 含氧混合组分，甲醇、乙醇、甲基- tert公司 -丁烯醚（MTBE）， tert公司 -戊基甲醚（TAME）和乙基- tert公司 -丁烯醚（ETBE）在通常存在于商业混合物中的浓度下，不会干扰碳氢化合物类型的测定。由于这些含氧成分用乙醇洗脱，因此未检测到。其他含氧化合物应单独验证。当分析含有含氧混合成分的样品时，将结果校正为总结果- 样本依据。 1.7 该测试方法包括基于实践的相对偏差部分 D6708 测试方法之间的准确性评估 D1319号 和试验方法 D5769 作为一种可能的测试方法，用于火花点火发动机燃料中的总芳烃 D1319号 试验方法的替代方案 D5769 美国EPA火花点火发动机燃料法规报告。实践 D6708 导出的相关方程仅适用于芳烃总浓度范围为3.3的燃料 % 到34。 4. % 按试验方法测量的体积 D1319号 蒸馏温度T 95 95%的样品蒸发，范围为149.1 °C至196.6 °C（300.3 °F至385.8 °F）根据试验方法进行试验时 D86 . 1.7.1 适用的测试方法 D5769 总芳烃的范围为3.7 % 至29.4 % 按试验方法报告的体积 D5769 蒸馏温度T 95 值，其中95 % 当根据试验方法进行试验时，样品的 D86 来自149.1 °C至196.6 °C（300.3 °F至385.8 °F）。 1.7.2 法规可能会随着时间的推移而变化，建议用户验证当前的法规要求。 1.8 警告 -许多监管机构已将汞指定为一种危险物质，可导致严重的医疗问题。汞或其蒸汽已被证明对健康有害，并对材料具有腐蚀性。处理汞和含汞产品时要小心。有关更多信息，请参阅适用的产品安全数据表（SDS）。 当地或国家法律禁止销售汞或含汞产品，或两者兼有。用户必须确定其所在地销售的合法性。 1.9 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 1.10 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。 有关具体的警告声明，请参阅第节 7. , 8.1 和 10.5 . 1.11 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 总体积的测定 石油馏分中饱和烃、烯烃和芳烃的百分比对于表征作为汽油混合组分和催化重整过程进料的石油馏分的质量很重要。 这一信息对于表征作为发动机和航空燃料混合成分的催化重整、热裂解和催化裂化的石油馏分和产品也很重要。该信息作为衡量燃料质量的指标也很重要，如规范中的规定 D1655 .

1.1 This test method covers the determination of hydrocarbon types of total aromatics, total olefins, and total saturates in petroleum fractions that distill below 315 °C. Samples containing dark-colored components that interfere in reading the chromatographic bands cannot be analyzed. Note 1: For the determination of olefins below 0.3 % by volume, other test methods are available, such as Test Method D2710 . 1.2 This test method is intended for use with full boiling range products. Cooperative data have established that the precision statement does not apply to narrow boiling petroleum fractions near the 315 °C limit. Such samples are not eluted properly, and results are erratic. 1.3 This test method is also applicable to automotive spark-ignition engine fuels which are gasolines with and without blended oxygenates, such as alcohols and ethers (for example MTBE, ethanol) and where gasoline is the primary component by volume in the blend. 1.4 The applicability of this test method to products derived from fossil fuels other than petroleum, such as coal, shale, or tar sands, has not been determined, and the precision statement may or may not apply to such products. 1.5 This test method has two precision statements depicted in Table 3 and Table 4. 1.5.1 Table 3 is applicable to fuels that do not contain oxygenated blending components over the test method concentration working ranges from 5 % to 99 % by volume aromatics, 1 % to 55 % by volume olefins, and 1 % to 95 % by volume saturates in petroleum fractions and with a final boiling point of <315 °C. It may or may not apply to automotive gasolines containing lead antiknock mixtures. 1.5.2 Table 4 precision was derived from an ILS containing only blended oxygenated (for example, MTBE, ethanol) and non-oxygenated automotive spark-ignition engine fuels (gasolines) and is applicable only in the test method concentration working range of 13 % to 40 % by volume aromatics, 4 % to 33 % by volume olefins, and 45 % to 68 % by volume saturates. 1.5.3 Non-oxygenated automotive spark-ignition engine fuels (gasolines) outside the inclusive valid test result reporting concentration ranges of Table 4 may use the precision in Table 3 and its applicable concentration ranges. 1.6 The oxygenated blending components, methanol, ethanol, methyl- tert -butylether (MTBE), tert -amylmethylether (TAME), and ethyl- tert -butylether (ETBE), do not interfere with the determination of hydrocarbon types at concentrations normally found in commercial blends. These oxygenated components are not detected since they elute with the alcohol desorbent. Other oxygenated compounds shall be individually verified. When samples containing oxygenated blending components are analyzed, correct the results to a total-sample basis. 1.7 This test method includes a relative bias section based on Practice D6708 accuracy assessment between Test Method D1319 and Test Method D5769 for total aromatics in spark-ignition engine fuels as a possible Test Method D1319 alternative to Test Method D5769 for U.S. EPA spark-ignition engine fuel regulations reporting. The Practice D6708 derived correlation equation is only applicable for fuels in the total aromatic concentration range from 3.3 % to 34.4 % by volume as measured by Test Method D1319 and the distillation temperature T 95 , at which 95 % of the sample has evaporated, ranges from 149.1 °C to 196.6 °C (300.3 °F to 385.8 °F) when tested according to Test Method D86 . 1.7.1 The applicable Test Method D5769 range for total aromatics is 3.7 % to 29.4 % by volume as reported by Test Method D5769 and the distillation temperature T 95 values, at which 95 % of the sample has evaporated, when tested according to Test Method D86 is from 149.1 °C to 196.6 °C (300.3 °F to 385.8 °F). 1.7.2 Regulations may change over time and the user is advised to verify current regulatory requirements. 1.8 WARNING —Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location. 1.9 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.10 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. For specific warning statements, see Section 7 , 8.1 , and 10.5 . 1.11 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 the total volume percent of saturates, olefins, and aromatics in petroleum fractions is important in characterizing the quality of petroleum fractions as gasoline blending components and as feeds to catalytic reforming processes. This information is also important in characterizing petroleum fractions and products from catalytic reforming and from thermal and catalytic cracking as blending components for motor and aviation fuels. This information is also important as a measure of the quality of fuels, such as specified in Specification D1655 .