1.1 本规范定义了燃料电池和基于燃料电池的动力系统的要求，包括电动小型无人机系统（sUAS）中使用的氢基燃料储存和加油系统。虽然本文件规定的许多要求可能适用于大型无人机系统（UAS）和有人驾驶飞机，但这些飞机的安全操作需要本文件范围之外的额外要求。sUAS中使用的燃料电池系统既可用于地面作战，也可用于飞机。地面操作中使用的燃料电池不在本规范的范围内。 1.2 本规范未定义可使用飞机燃料电池的系统的要求，但可能需要这些系统中的额外功能以支持燃料电池操作。 1.3 声明符合本规范的实体通常是将燃料电池整合到无人机中的实体，因为许多要求不仅适用于燃料电池本身，还适用于它如何与无人机和操作员交互。 1.4 以国际单位制表示的数值应视为标准。在某些情况下，为了清晰起见，使用了非国际单位制单位。 1.5 民航局的规定仍然适用。 1.6 本标准并不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。 1.7 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 defines the requirements for fuel cells and fuel cell based power systems, including hydrogen-based fuel storage and refueling systems used in electric small Unmanned Aircraft Systems (sUAS). While many requirements specified by this document may apply to larger Unmanned Aircraft Systems (UAS) and manned aircraft, safe operation of these aircraft require additional requirements outside the scope of this document. Fuel cell systems for use in sUAS may be used in both ground operations and in aircraft. Fuel cells used in ground operations are outside the scope of this specification. 1.2 This specification does not define requirements for the systems in which aircraft fuel cells may be utilized, but may require additional functionality in those systems to support fuel cell operations. 1.3 The entity declaring conformance to this specification will typically be the integrator of the fuel cell into the UAS, as many requirements apply to not only the fuel cell itself, but how it interacts with the UAS and with the operator. 1.4 The values stated in SI units are to be regarded as standard. In some cases, non-SI units are used for clarity. 1.5 The regulations of the Civil Aviation Authorities (CAA) remain applicable. 1.6 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. 1.7 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.