In calibrating the leak, the pressure in the ballast chamber can be precisely controlled in such a way that the standard gas flow through the orifice is close or equal to the leak rate.
There should be regular leak tests on the chamber when a vacuum phase is part of the cycle.
如灭菌程序中含抽真空，则应定期对腔室进行检漏试验。
3
In the following test cycle the standard leak will be connected through the chamber at that moment where the test sample will be filled with test pressure.