1.1 本规范涵盖根据合同采购无铅航空汽油测试燃料的制定规范，仅供采购机构用于测试目的。 1.2 本规范定义了用作航空火花点火发动机试验燃料的特定类型的航空汽油。它不包括所有满足往复式航空发动机要求的汽油。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 本规范定义的无铅航空汽油试验燃料的辛烷值性能与现有飞机和地面燃料装卸设备设计使用的含铅燃料相似。 1.4 本规范的发布并不构成对使用该测试燃料运行认证飞机的批准。 作为认证计划的一部分，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 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。 1.6 除非另有规定，本规范规定了无铅航空汽油试验燃料在交付时间和地点的要求性能。 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 an unleaded aviation gasoline test fuel under contract and is intended solely for use by purchasing agencies for testing purposes. 1.2 This specification defines a specific type of aviation gasoline for use as an aviation spark-ignition engine test fuel. It does not include all gasolines 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 unleaded aviation gasoline test fuel defined by this specification does exhibit similar octane performance to those leaded fuels with which the existing aircraft and ground-based fuel handling equipment have been designed to operate. 1.4 Issuance of this specification does not constitute approval to operate certificated aircraft with this test 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 a certification program. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This specification, unless otherwise provided, prescribes the required properties of unleaded aviation gasoline test fuel at the time and place of delivery. 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.