本SAE航空航天标准（AS）定义了适用于航空航天液压、燃料和润滑油系统的聚四氟乙烯（PTFE）内衬、金属增强软管组件的要求，其温度范围为-67华氏度至450华氏度（一级组件）、67华氏度至275华氏度（二级组件），标称压力高达1500 psi。软管组件也适用于在航空航天气动系统中相同的温度和压力限制下使用，在这些系统中，可以容忍通过PTFE衬里壁的一些气体扩散。 不建议在气动存储系统中使用这些软管组件。此外，超过本标准规定限值的装置，或本标准未具体涵盖的应用，例如氧气，应获得采购活动的批准。

This SAE Aerospace Standard (AS) defines the requirements for polytetrafluoroethylene (PTFE) lined, metallic reinforced, hose assemblies suitable for use in aerospace hydraulic, fuel, and lubricating oil systems at temperatures between -67 degrees F and 450 degrees F for Class I assemblies, -67 degrees F and 275 degrees F for Class II assemblies, and at nominal pressures up to 1500 psi. The hose assemblies are also suitable for use within the same temperature and pressure limitations in aerospace pneumatic systems where some gaseous diffusion through the wall of the PTFE liner can be tolerated. The use of these hose assemblies in pneumatic storage systems is not recommended. In addition, installations in which the limits specified herein are exceeded, or in which the application is not covered specifically by this standard, for example oxygen, shall be subject to the approval of the procuring activity.