1.1 本试验方法包括在3.0范围内测定硫浓度 mg/kg至1000 轻液态烃和含氧化合物沸腾范围为26的燃料中的mg/kg °C至274 °C（80 华氏度至525度 °F）。 注1: 初步数据表明，该试验方法也适用于变性燃料乙醇中硫的测定（规范 D4806 )，汽车火花点火发动机燃料（规范 D4814 )，Ed75–Ed85（规格 D5798 )或大于10%的汽油-含氧燃料混合物 % 乙醇然而，这些材料的精度尚未确定。小组委员会D02.03正在开展活动，以获取这些材料的精度声明。 1.2 其他在本规范规定的蒸馏范围内的材料 1.1 ，但硫浓度高于1000 mg/kg，可使用适当的稀释液进行测试，使其在规定限值内。此外，可能超出规定蒸馏范围的样品类型，如柴油和生物柴油，可通过本试验方法进行分析。 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。首选单位为毫克每千克（mg/kg）。 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。 有关具体的危险说明，请参阅第节 7 – 9 . 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 本试验方法用于测定轻液态烃、汽油和柴油及其添加剂中的硫浓度，其中此类硫浓度可能对其生产、性能和使用有害。 出于监管目的和确保汽车行业所用催化转化器的最大预期寿命，需要测量汽油和柴油生产和最终产品中的硫。

1.1 This test method covers the determination of sulfur concentration in the range from 3.0 mg/kg to 1000 mg/kg in light liquid hydrocarbons and fuels with oxygenates boiling in the range from 26 °C to 274 °C (80 °F to 525 °F). Note 1: Preliminary data has shown that this test method is also applicable to the determination of sulfur in denatured fuel ethanol (Specification D4806 ), automotive spark ignition engine fuel (Specification D4814 ), Ed75–Ed85 (Specification D5798 ) or gasoline-oxygenate fuel blends with greater than 10 % ethanol. However, the precision for these materials has not been determined. Subcommittee D02.03 is undertaking activities to obtain precision statements for these materials. 1.2 Other materials falling within the distillation range specified in 1.1 , but having sulfur concentrations above 1000 mg/kg, may be tested using appropriate dilutions to bring them within the specified limit. In addition, sample types that may be outside the specified distillation range, such as diesels and biodiesels, may be analyzed by this test method. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. The preferred units are milligrams per kilogram (mg/kg). 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. For specific hazard statements, see Sections 7 – 9 . 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 This test method is used to determine the concentration of sulfur in light liquid hydrocarbons, gasoline, and diesels and their additives, where such concentrations of sulfur can be detrimental to their production, performance, and use. The measurement of sulfur in the production and final product of gasoline and diesel is required for both regulatory purposes and to ensure maximum life expectancy of catalytic converters used in the automotive industry.