How the Integrity of air filter is tested using IPA Before using the filters. How we should confurm that the traces of IPA are not contaminating the product after performing the integrity test of the filter???
Most filter manufacturers provide detailed instructions to remove IPA…BUT…why are you doing a Bubble Point Pre-Use? Normal testing is Water Intrustion.
Traces of IPA remains with filters. Hence nowadays all filter manufacturers recommend to perform Water intrusion test
This is Jasbindersingh.
Normally WIT or Hydrocorr test is best option for this.
Find herewith link:
to learn more about this test.
For Kamal Consultants,
you can check the intigrity of airfilters with 60 % IPA +40% WFI
after passing this solution increase the air pressure then you check bubbles.
or else you can check this by automated systems like IT_II or IT-IV or exausta providing by millipore.
normally you are usring this filters for the filteration of air there may not be any tracess after you getting the bubbles. and else you can continue the pressure for anther 2 minutes before after buble point and then connect to the airlines
for detailed information contact me on my mail