This aerospace standard covers hose assemblies intended for use in aircraft high temperature fluid systems. The specified temperature range is -55 C (-67 F) to +204 C (400 F). Operating pressures are listed in Table 1. The assemblies shall be of the following types: Type I - non-conductive inner tube; and Type II - conductive inner tube. The hose assemblies shall be of the following classes: Class 1 - liquid proof test; and Class 2 - pneumatic proof test.