1.1 本规范涵盖了标称无水变性燃料乙醇，拟与无铅或含铅汽油在1 % 至15 % 按体积计算 用作规范涵盖的汽车火花点火发动机燃料 D4814 以及其他涉及乙醇的燃料应用或规格。本规范的意义如所示 附录X1 . 1.2 司法管辖区对变性剂的允许或禁止类型、变性剂的化学成分或变性乙醇所需变性剂的浓度的监管要求可能有所不同。建议用户咨询乙醇变性和使用的国家和地区监管机构。 1.2.1 附录中给出了不同司法管辖区对变性燃料乙醇和可接受变性剂的具体监管要求，以供参考。 1.3 以国际单位制表示的数值应视为标准值。 1.3.1 例外情况- 括号中给出的值仅供参考。如果非国际单位直接引用政府法规，请参见附录。在大多数情况下，美国联邦法规规定了非国际单位制。 1.4 以下安全隐患警告仅适用于 8.7 本规范: 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。 1.5 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。

1.1 This specification covers nominally anhydrous denatured fuel ethanol intended to be blended with unleaded or leaded gasolines at 1 % to 15 % by volume for use as automotive spark-ignition engine fuel covered by Specification D4814 as well as other fuel applications or specifications involving ethanol. The significance of this specification is shown in Appendix X1 . 1.2 Jurisdictions may vary in their regulatory requirements for the allowable or prohibited types of denaturants, chemical composition of the denaturant or concentration of denaturant needed to denature the ethanol. The user is advised to check with the national and regional regulatory agencies where the ethanol is denatured and used. 1.2.1 Specific regulatory requirements for denatured fuel ethanol and acceptable denaturants from various jurisdictions are given in Appendixes for information. 1.3 The values stated in SI units are to be regarded as standard. 1.3.1 Exception— Values given in parentheses are provided for information only. Non-SI units are shown in the Appendix if they are in a direct quotation from government regulations. In most cases, U.S. federal regulations specify non-SI units. 1.4 The following safety hazards caveat pertains only to the method modification in 8.7 of this specification: 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. 1.5 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.