1.1 本规范涵盖了机身降落伞设计、制造和安装的最低要求。本规范中所述的机身应急降落伞是指设计、制造和安装的降落伞系统，用于以可生存的下降速度恢复机身及其乘员。本规范不适用于深失速降落伞、旋转恢复降落伞、droge降落伞或其他机身紧急空气动力减速器，这些减速器并非专门用于将机身和乘员安全降到地面。 如果这些类型的降落伞是机身紧急降落伞系统的组成部分，设计用于以可生存下降率恢复机身和乘员，则本规范适用于这些类型的降落伞。 1.2 以国际单位制表示的数值应视为标准值。括号中可能有数值是英寸-磅单位的数学转换。括号中的值仅供参考，不被视为标准值。 1.2.1 请注意，根据国际民用航空组织（ICAO）的协议，在航空界，混合机组是合适的。 虽然以国际单位制表示的数值被视为标准值，但某些数值（如以节为单位的空速和以英尺为单位的高度）也被视为标准值。 1.3 机身紧急降落伞回收系统已成为一种可接受的方法，可大大降低飞行中紧急情况下重伤或死亡的可能性。尽管它们在许多不同类型的条件下挽救了数百条生命，但由于无数随机变量（姿态、高度、加速度、空速、重量、地理位置等）的排列，即使设计、制造和安装得当，固有的故障危险仍然存在。 )使用时可能存在。这些变量的组合可能会对这些机身紧急降落伞系统的救生功能产生负面影响。它们被设计为一种补充安全装置，当被视为提供最佳生存机会时，由飞行员自行决定使用。 1.4 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，并确定监管要求的适用性。 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 minimum requirements for the design, manufacture, and installation of parachutes for airframes. Airframe emergency parachutes addressed in this specification refer to parachute systems designed, manufactured, and installed to recover the airframe and its occupants at a survivable rate of descent. This specification is not applicable to deep-stall parachutes, spin recovery parachutes, drogue parachutes, or other airframe emergency aerodynamic decelerators not specifically intended for safely lowering the airframe and occupants to the ground. The specification is applicable to these types of parachutes if they are an integral part of an airframe emergency parachute system designed to recover the airframe and occupants at a survivable rate of descent. 1.2 The values stated in SI units are to be regarded as standard. There may be values given in parentheses that are mathematical conversions to inch-pound units. Values in parentheses are provided for information only and are not considered standard. 1.2.1 Note that within the aviation community mixed units are appropriate in accordance with International Civil Aviation Organization (ICAO) agreements. While the values stated in SI units are regarded as standard, certain values such as airspeeds in knots and altitude in feet are also accepted as standard. 1.3 Airframe emergency parachute recovery systems have become an acceptable means of greatly reducing the likelihood of serious injury or death in an in-flight emergency. Even though they have saved hundreds of lives in many different types of conditions, inherent danger of failure, even if properly designed, manufactured and installed, remains due to the countless permutations of random variables (attitude, altitude, accelerations, airspeed, weight, geographic location, etc.) that may exist at time of usage. The combination of these variables may negatively influence the life saving function of these airframe emergency parachute systems. They are designed to be a supplemental safety device and to be used at the discretion of the pilot when deemed to provide the best chance of survivability. 1.4 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 requirements 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.