1.1 本规范涵盖根据合同采购高芳烃含量无铅碳氢化合物航空汽油试验燃料的制定规范，仅供采购机构用于试验目的。 2. 1.2 本规范规定了一种特定类型的高芳烃含量无铅碳氢化合物航空汽油（以下简称“无铅汽油”） D7719 燃料”），用作航空火花点火试验燃料。它不包括往复式航空发动机所需的所有燃料。某些设备或使用条件可能允许比本规范所示更宽或更窄的特性范围。 1.3 这个 D7719 本规范定义的燃料与现有飞机和地面燃料装卸设备设计使用的含铅燃料性能不同。 因此，在任何特定飞机、飞机发动机或地面燃料装卸设备上使用该试验燃料之前，应评估其适用性。 1.4 本规范的发布并不构成对使用该燃料运行认证飞机的批准。作为该飞机和发动机型号认证计划的一部分，在向认证机构正式提交证据后，认证机构最终批准认证发动机和飞机中使用的燃料。 1.5 除非另有规定，本规范规定了无铅汽油的要求性能 D7719 在交付的时间和地点测试燃料。 1.6 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。 1.7 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。 1.8 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 formulating specifications for purchases of a high aromatic content unleaded hydrocarbon aviation gasoline test fuel under contract and is intended solely for use by purchasing agencies for testing purposes. 2 1.2 This specification defines a specific type of high aromatic content unleaded hydrocarbon aviation gasoline (hereafter also referred to as “ D7719 fuel”) for use as an aviation spark-ignition test fuel. It does not include all fuels satisfactory for reciprocating aviation engines. Certain equipment or conditions of use may permit a wider, or require a narrower, range of characteristics than is shown by this specification. 1.3 The D7719 fuel defined by this specification does not exhibit identical performance to those leaded fuels for which the existing aircraft and ground-based fuel handling equipment have been designed to operate on. Therefore, the suitability of this test fuel for use on any specific aircraft, aircraft engine, or ground-based fuel handling equipment should be evaluated before use on that equipment. 1.4 Issuance of this specification does not constitute approval to operate certificated aircraft with this fuel. Fuels used in certified engines and aircraft are ultimately approved by the certifying authority subsequent to formal submission of evidence to the authority as part of the certification program for that aircraft and engine model. 1.5 This specification, unless otherwise provided, prescribes the required properties of unleaded D7719 test fuel at the time and place of delivery. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.7 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. 1.8 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.