Pressure Decay Method
Vacuum Decay Method
Flow Meter Method
Air is filled in the component which is sealed from all sides and component is dipped in water.
Leakage if any can be observed by stream of air bubbles oozing out from Leakage point.
Dry + Wet Test
Combination of Dry test with Wet test for Not OK component.
After Dry test is carried out, if location of leak is to be identified component is dipped in water.
Component is tested with pressurised liquid.