本文件规定了飞机液压系统中使用的标准重量聚四氟乙烯（PTFE）软管组件的要求，其温度在-55°C和+204°C之间，标称压力高达21？000？kPa（210？bar）。软管组件也适用于在飞机气动系统中相同的温度和压力限制下使用，在该系统中，可以容忍通过PTFE衬里壁的一些气体扩散。

This document specifies requirements for standard-weight polytetrafluoroethylene (PTFE) hose assemblies for use in aircraft hydraulic systems at temperatures between –55？°C and +204？°C and at a nominal pressure up to 21？000？kPa (210？bar). The hose assemblies are also suitable for use within the same temperature and pressure limitations in aircraft pneumatic systems where some gaseous diffusion through the wall of the PTFE liner can be tolerated.