Final answer:
Operating temperatures for hoses are material-dependent and must be confirmed through manufacturer specifications or industry standards. The reference provided does not conclusively determine the operating temperature of a medium pressure -5 hose.
Step-by-step explanation:
The operating temperatures for a medium pressure -5 hose are not explicitly stated within the provided reference information. However, similar contexts in engineering and material science suggest that operating temperatures for hoses and other materials could vary widely depending on the material composition and intended use.
Hoses designed for various pressures and environmental conditions can have a wide range of operating temperatures. It is important to consult the manufacturer's specifications or to refer to relevant industry standards to determine the exact operating temperature range.
For specific applications, designing for the lowest possible minimum temperature, such as -10°C, could be reasonable to ensure safety and performance under varying climatic conditions. In engineering design, the imposed conditions must be practical and should factor in the worst-case scenarios that the equipment might face.