1.1 本试验方法涵盖液态烃中总硫的测定，其沸点范围约为25°C至400°C，粘度约为0.2 cSt至20 cSt(mm 2 /s）在室温下。 1.2 关于精密度的三项独立的实验室间研究（ILS）和产生ASTM研究报告的其他三项研究已经确定，该测试方法适用于石脑油、馏分油、发动机油、乙醇、脂肪酸甲酯（FAME）和发动机燃料，如汽油、富氧汽油（乙醇混合物、E-85、M-85、RFG）、柴油、生物柴油、柴油/生物柴油混合物和喷气燃料。可以分析含有1.0 mg/kg至8000 mg/kg总硫的样品（ 附注1 ). 附注1: 计算精密度研究的合并定量限（PLOQ）估计值。数值范围为小于1.0 mg/kg至小于5.0 mg/kg（参见第节 10 和 17.1 ). 1.3 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。 1.4 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。 有关警告语句，请参见 4.1 , 8.3 , 8.4 ,部分 9 ，和 10.1 . 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》中确立的国际公认的标准化原则制定的。======意义和用途====== 5.1 当原料中含有微量的含硫物质时，石油和化学精炼中使用的一些工艺催化剂可能中毒。该测试方法可用于测定工艺进料中的硫和成品中的硫，也可用于监管控制目的。

1.1 This test method covers the determination of total sulfur in liquid hydrocarbons, boiling in the range from approximately 25 °C to 400 °C, with viscosities between approximately 0.2 cSt and 20 cSt (mm 2 /s) at room temperature. 1.2 Three separate interlaboratory studies (ILS) on precision, and three other investigations that resulted in an ASTM research report, have determined that this test method is applicable to naphthas, distillates, engine oil, ethanol, Fatty Acid Methyl Ester (FAME), and engine fuel such as gasoline, oxygen enriched gasoline (ethanol blends, E-85, M-85, RFG), diesel, biodiesel, diesel/biodiesel blends, and jet fuel. Samples containing 1.0 mg/kg to 8000 mg/kg total sulfur can be analyzed ( Note 1 ). Note 1: Estimates of the pooled limit of quantification (PLOQ) for the precision studies were calculated. Values ranged between less than 1.0 mg/kg and less than 5.0 mg/kg (see Section 10 and 17.1 ). 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. For warning statements, see 4.1 , 8.3 , 8.4 , Section 9 , and 10.1 . 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 ====== 5.1 Some process catalysts used in petroleum and chemical refining can be poisoned when trace amounts of sulfur bearing materials are contained in the feedstocks. This test method can be used to determine sulfur in process feeds sulfur in finished products, and can also be used for purposes of regulatory control.