1.1 本实验室试验方法涵盖了火花点火航空汽油增压额定值的定量测定。使用标准化单缸、四冲程循环、间接喷射、液冷、CFR发动机，根据定义的一组操作条件运行，测试样品燃料。 1.2 通过将样品的爆震极限功率与支架式参考燃料混合物的爆震极限功率进行线性插值，计算增压额定值。 1.3 评分范围从85辛烷值到 Iso 辛烷值+6.0 mL电话/美国gal。 1.4 工作条件值以国际单位制表示，并被视为标准值。 括号中的值是历史英寸-磅单位。标准化CFR发动机测量值和参考燃料浓度继续采用历史单位。 1.5 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。 具体预防说明见 附件A1 . 1.6 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 增压方法额定值可以指示航空活塞发动机中航空汽油的丰富混合物抗爆性能。 5.2 增压法额定值被炼油厂和营销人员以及商业上用作主要规格测量，以确保燃油抗爆质量和发动机要求的适当匹配。 5.3 航空发动机和飞机制造商可将增压方法额定值用作与燃料和发动机匹配相关的规格测量。

1.1 This laboratory test method covers the quantitative determination of supercharge ratings of spark-ignition aviation gasoline. The sample fuel is tested using a standardized single cylinder, four-stroke cycle, indirect injected, liquid cooled, CFR engine run in accordance with a defined set of operating conditions. 1.2 The supercharge rating is calculated by linear interpolation of the knock limited power of the sample compared to the knock limited power of bracketing reference fuel blends. 1.3 The rating scale covers the range from 85 octane number to Iso octane + 6.0 mL TEL/U.S. gal. 1.4 The values of operating conditions are stated in SI units and are considered standard. The values in parentheses are the historical inch-pound units. The standardized CFR engine measurements and reference fuel concentrations continue to be in historical units. 1.5 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 precautionary statements are given in Annex A1 . 1.6 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 Supercharge method ratings can provide an indication of the rich-mixture antiknock performance of aviation gasoline in aviation piston engines. 5.2 Supercharge method ratings are used by petroleum refiners and marketers and in commerce as a primary specification measurement to ensure proper matching of fuel antiknock quality and engine requirement. 5.3 Supercharge method ratings may be used by aviation engine and aircraft manufacturers as a specification measurement related to matching of fuels and engines.