1.1 本试验方法包括用毛细管气相色谱法用火焰离子化检测法测定石油产品的沸程分布。本标准测试方法是通过协调两种测试方法开发的，测试方法 D6352 和IP 480。由于这两种方法涵盖相同的范围并包括非常相似的操作条件，因此一致认为单一标准方法将使全球模拟蒸馏界受益。 1.2 本试验方法不适用于分析含有低分子量组分的石油或石油产品（例如石脑油、重整油、汽油、柴油）。含有杂原子的组分（例如醇、醚、酸或酯）或残留物不应通过该测试方法进行分析。参见测试方法 D7096 , D2887 ，或 D7213 可能适用于这些类型材料的分析。这种方法也不适用于从气相色谱柱上洗脱不完全，留下残留物的样品。原油和残渣等样品见试验方法 D5307 和 D7169 . 1.3 本试验方法适用于初沸点在100ºC以上，终沸点在735ºC以下的馏出物（碳110）；例如，馏出物(IBP>100℃)、基础油和润滑基础油。 1.4 以SI单位表示的值将被视为标准值。本标准不包括其他计量单位。 1.5 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。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》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 5.1 中等和重质石油馏出物馏分的沸程分布提供了对与石油精炼工艺(例如，加氢裂化、加氢处理、减粘裂化或脱沥青)相关的原料和产物的组成的洞察。该测定的气相色谱模拟可用于替代常规蒸馏方法以控制精炼操作。经相关方共同同意，本试验方法可用于产品规格试验。5.2 本试验方法扩展了气相色谱法测定沸程的范围，将馏出物（IBP>100°C）和超出试验方法范围的重质石油馏出物馏分包括在内 D2887 (538℃)。 5.3 尚未分析通过该测试方法获得的沸程分布与通过低效蒸馏获得的沸程分布的相关性，例如通过测试方法 D86 或 D1160 本试验方法不主张这些物理蒸馏和模拟蒸馏之间的一致性。将继续努力解决这一问题。当确定问题的成功解决时，将相应地修改本测试方法。

1.1 This test method covers the determination of the boiling range distribution of petroleum products by capillary gas chromatography using flame ionization detection. This standard test method has been developed through the harmonization of two test methods, Test Method D6352 and IP 480. As both of these methods cover the same scope and include very similar operating conditions, it was agreed that a single standard method would benefit the global simulated distillation community. 1.2 This test method is not applicable for the analysis of petroleum or petroleum products containing low molecular weight components (for example naphthas, reformates, gasolines, diesel). Components containing hetero atoms (for example alcohols, ethers, acids, or esters) or residue are not to be analyzed by this test method. See Test Methods D7096 , D2887 , or D7213 for possible applicability to analysis of these types of materials. This method is also not suitable for samples that will not elute completely from the gas chromatographic column, leaving residues. For such samples as crude oils and residues, see Test Methods D5307 and D7169 . 1.3 This test method is applicable to distillates with initial boiling points above 100 ºC and final boiling points below 735 ºC (carbon 110); for example, distillates (IBP > 100 °C), base oils and lubricating base stocks. 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 The boiling range distribution of medium and heavy petroleum distillate fractions provides an insight into the composition of feed stocks and products related to petroleum refining processes (for example, hydrocracking, hydrotreating, visbreaking, or deasphalting). The gas chromatographic simulation of this determination can be used to replace conventional distillation methods for control of refining operations. This test method can be used for product specification testing with the mutual agreement of interested parties. 5.2 This test method extends the scope of boiling range determination by gas chromatography to include distillates (IBP > 100 °C) and heavy petroleum distillate fractions beyond the scope of Test Method D2887 (538 °C). 5.3 Boiling range distributions obtained by this test method have not been analyzed for correlation to those obtained by low efficiency distillation, such as with Test Method D86 or D1160 . This test method does not claim agreement between these physical distillations and simulated distillation. Efforts to resolve this question will continue. When successful resolutions of the questions are determined, this test method will be revised accordingly.