1.1 本试验方法包括测定浓度为0.01的液态石油产品中的总硫 % 至0.4 % 按质量计 ( 注1 ). 中描述了一种特殊的硫酸盐分析程序 附件A1 这允许测定浓度低至5的硫 毫克/千克。 注1: 试验方法中描述了测定液化石油气中硫的可比灯法 D2784 . 对于不能在灯中燃烧的较重石油产品中硫的测定，请参阅高压分解装置法（试验方法 D129 )石英管法（IP 63）或高温法（试验方法 D1552 ). 1.2 直接燃烧程序（第 9 )适用于分析汽油、煤油、石脑油和其他可以在灯芯灯中完全燃烧的液体。混合程序（第节 10 )适用于分析柴油和馏出燃料油、环烷酸、烷基酚、高含硫量石油产品以及许多其他无法通过直接燃烧程序令人满意地燃烧的材料。 1.3 商业汽油中通常存在的磷化合物不会产生干扰。对铅燃烧产生的少量酸进行了修正- 汽油中的爆震液。当采用滴定程序时，来自其他来源的酸形成或碱形成元素的可观浓度会产生干扰，因为在这些情况下没有提供校正。 1.4 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。 1.5 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。 1.6 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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 本试验方法提供了一种监测各种石油产品和添加剂硫含量的方法。这些知识可用于预测性能、处理或加工特性。在某些情况下，硫组分的存在对产品有益，监测硫化合物的消耗提供了有用的信息。 在其他情况下，含硫化合物的存在对产品的加工或使用有害。

1.1 This test method covers the determination of total sulfur in liquid petroleum products in concentrations from 0.01 % to 0.4 % by mass ( Note 1 ). A special sulfate analysis procedure is described in Annex A1 that permits the determination of sulfur in concentrations as low as 5 mg/kg. Note 1: The comparable lamp method for the determination of sulfur in liquefied petroleum gas is described in Test Method D2784 . For the determination of sulfur in heavier petroleum products that cannot be burned in a lamp, see the high pressure decomposition device method (Test Method D129 ) the quartz tube method (IP 63), or the high-temperature method (Test Method D1552 ). 1.2 The direct burning procedure (Section 9 ) is applicable to the analysis of such materials as gasoline, kerosine, naphtha, and other liquids that can be burned completely in a wick lamp. The blending procedure (Section 10 ) is applicable to the analysis of gas oils and distillate fuel oils, naphthenic acids, alkyl phenols, high sulfur content petroleum products, and many other materials that cannot be burned satisfactorily by the direct burning procedure. 1.3 Phosphorus compounds normally present in commercial gasoline do not interfere. A correction is given for the small amount of acid resulting from the combustion of the lead anti-knock fluids in gasolines. Appreciable concentrations of acid-forming or base-forming elements from other sources interfere when the titration procedure is employed since no correction is provided in these cases. 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 ====== 4.1 This test method provides a means of monitoring the sulfur level of various petroleum products and additives. This knowledge can be used to predict performance, handling, or processing properties. In some cases the presence of sulfur components is beneficial to the product and monitoring the depletion of sulfur compounds provides useful information. In other cases the presence of sulfur compounds is detrimental to the processing or use of the product.