HP 8360 - Manual (Page 441)

Environment The synthesizer may be stored or shipped within the following limits:
Temperature -40” to
Humidity 5% to 95% relative at 0” to
Altitude Up to 15240 meters. Pressure approximately 50,000
feet.
The synthesizer should be protected from sudden temperature
fluctuations that can cause condensation.
Specifications INSTALLATION 3-17