1.1 本试验方法测量规范规定的抑制和非抑制乙醇燃料混合物的能力 D5798 和规范规定的变性燃料乙醇 D4806 为了抵抗铁的腐蚀，应使用加速实验室试验方法将水与燃料混合。腐蚀额定值是根据视觉、编号的额定值表报告的。 1.2 以国际单位制表示的数值应视为标准值。括号中的值仅供参考。 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。 具体危险说明见第节 7. 和 8. . 1.4 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====== 5.1 本试验旨在快速测量乙醇燃料混合物的整体相对腐蚀性（规范 D5798 )和变性燃料乙醇（规范 D4806 )到铁（钢）。 5.2 该试验可用于比较各种缓蚀剂的缓蚀剂剂量水平和有效性，因为它们与保护铁（钢）材料免受腐蚀有关。

1.1 This test method measures the ability of inhibited and uninhibited Ethanol Fuel Blends defined by Specification D5798 and Denatured Fuel Ethanol defined by Specification D4806 to resist corrosion of iron should water become mixed with the fuel, using an accelerated laboratory test method. Corrosion ratings are reported based on a visual, numbered rating scale. 1.2 The values stated in SI units are to be regarded as standard. The values in parentheses are for information only. 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. Specific hazard statements are given in Sections 7 and 8 . 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 This test is designed to be used as a rapid measure of the overall relative corrosivity of Ethanol Fuel Blends (Specification D5798 ) and Denatured Fuel Ethanol (Specification D4806 ) to iron (steel). 5.2 The test can be used to compare corrosion inhibitor dosage levels and effectiveness of various corrosion inhibitors as they pertain to protecting iron (steel) materials from corrosion.