Abstract: In order to avoid the risk of false alarms by supplementing the pressure and temperature measurements with a particular monitoring of their change over time, there is proposed a method which includes: converting referenced pressure measurements (?P) into values of a magnitude calibrated in temperature called converted pressure (?PT); monitoring for at least two sampling periods (n1, n2) multiples of a measurement period, the change in a difference called significant (?Q) at each measurement moment between the values of the converted pressure (?PT) and a referenced temperature (?T). The slope (p(n)) of these variations is monitored and signifies either an absence of leakage or an air leakage at a fast or slow rate.

Abstract: In order to avoid the risk of false alarms by supplementing the pressure and temperature measurements with a particular monitoring of their change over time, there is proposed a method which includes: converting referenced pressure measurements (?P) into values of a magnitude calibrated in temperature called converted pressure (?PT); monitoring for at least two sampling periods (n1, n2) multiples of a measurement period, the change in a difference called significant (?Q) at each measurement moment between the values of the converted pressure (?PT) and a referenced temperature (?T). The slope (p(n)) of these variations is monitored and signifies either an absence of leakage or an air leakage at a fast or slow rate.