1.1 本规范涵盖了在专门为二甲醚设计或改装的发动机中用作燃料的二甲醚（DME），以及与液化石油气（LPG）混合使用的二甲醚。本规范适用于二甲醚制造商、专用发动机的发动机开发商、用于燃料目的的二甲醚采购合同以及此类燃料消费者的指导。 注1: 静电的产生和消散会在DME的处理中产生问题。有关该主题的更多信息，请参阅指南 D4865 。 1.2 以国际单位制表示的数值应视为标准。 括号中的单位仅供参考。 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。 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。

1.1 This specification covers dimethyl ether (DME) for use as a fuel in engines specifically designed or modified for DME and for blending with liquefied petroleum gas (LPG). This specification is for use by manufacturers of dimethyl ether, by engine developers of purpose-built engines, in contracts for the purchase of DME for fuel purposes, and for the guidance of consumers of this type of fuel. Note 1: The generation and dissipation of static electricity can create problems in the handling of DME. For more information on the subject, see Guide D4865 . 1.2 The values stated in SI units are to be regarded as standard. Units 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. 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.