[buildsjets]

In testing aircraft installations, the FAA requires you to demonstrate 6% concentration of Halon 1301 at 12 FAA chosen locations in a compartment for 0.5 seconds, simultaneously, when the test is run at sea level and standard temperature. This is to allow for the fact that the halon bottles may be cold soaked down to -60F and that the system needs to be effective at density altitudes down to -1000 feet.