000013208 - Altitude testing for tokens

What pressure can a SID700 withstand?

The pressurized cabin in the 57 is up to 24,000 (5.7 psi) usually. The

unpressurized area is up to 65,000 (0.8psi). 38 cabin is 15,000

(8.29psi).

We perform an altitude test that simulates a token in an unpressurized aircraft. See below:

Altitude Testing

Test Outline:

?Altitude testing is to simulate the environment by which the SID 700 can undergo when being transported in an airplane. Typically in the cargo hole of the airplane.

Test Guidelines:

?Devices will be placed in a vacuum vessel. The vessel will be placed in the environmental chamber.

? An altitude of 40,000 feet will be simulated (?24.38 inches Hg (gauge)).

?The temperature will be ramped from ambient temperature to 0?C for 12 hours, and then to 50?C for 12 hours.