1.1 本试验方法包括离子色谱法，用于测定汽车燃料应用中使用的含水和无水变性乙醇中存在的无机物和潜在硫酸盐以及总无机氯化物含量。用于分析含0.55 mg/kg和20 mg/kg现有无机硫酸盐，4.0 mg/kg至20 mg/kg潜在无机硫酸盐和0.75 mg/kg至50 mg/kg的总无机氯化物。 1.2 以国际单位制表示的数值应视为标准。 本标准不包括其他计量单位。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 可提供试剂和材料的材料安全数据表。使用前检查其是否存在危险 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《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 硫酸盐和氯化物可能存在于滤清器堵塞沉积物和喷油器沉积物中。燃料组分和成品燃料的可接受性取决于硫酸盐和氯化物的含量。 5.2 通过该试验方法测量的现有和潜在的无机硫酸盐和总氯化物含量，可作为衡量汽车火花点火式发动机燃料使用的汽油成分可接受性的一种指标。

1.1 This test method covers an ion chromatographic procedure for the determination of the existent inorganic and potential sulfate and total inorganic chloride content in hydrous and anhydrous denatured ethanol to be used in motor fuel applications. It is intended for the analysis of ethanol samples containing between 0.55 mg/kg and 20 mg/kg of existent inorganic sulfate, 4.0 mg/kg to 20 mg/kg of potential inorganic sulfate, and 0.75 mg/kg to 50 mg/kg of total inorganic chloride. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage 1.4 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 Sulfates and chlorides may be found in filter plugging deposits and fuel injector deposits. The acceptability for use of the fuel components and the finished fuels depends on the sulfate and chloride content. 5.2 Existent and potential inorganic sulfate and total chloride content, as measured by this test method, can be used as one measure of the acceptability of gasoline components for automotive spark-ignition engine fuel use.