Hepa Filter Leakage Test:

According to the IEST-RP-CC034: Hepa And Ulpa Filter Leak Tests” standard, after the installation of HEPA filters, using a photometer and aerosol generator (with Poly-Alpha Olefin liquid) to check whether there is leakage outside the acceptance limits specified in the standard on the filter surface, gasket and filter cabinet. is a test. It has to be done at least once a year, depending on the sensitivity of the processes in which LAF cabinets are used and in cases where there is no change in the system. This test is also called Integrity or DOP testing.

Air Flow Rate Measurement:

According to the acceptance criteria described in the IEST-RP-CC006: Testing Cleanrooms” and “ISO 14644-3: Cleanrooms And Associated Controlled Environments – Part 3: Test Methods” standards, air velocities are measured with a velometer/anemometer to check whether the appropriate laminarity is provided on the surface of the HEPA filter. it is a test.

Particle Count:

According to the ISO 14644-1/2015: standard, measurements are made using the particle counting device to control whether the particle level in the LAF Cabinet meets the acceptance criteria specified in the standard.

Determination of Air Flow Direction Characteristic:

According to IEST-RP-CC006: Testing Cleanrooms” and “ISO 14644-3: Cleanrooms And Associated Controlled Environments – Part 3: Test Methods”, smoke generator and video camera to check whether the air flow directions inside the LAF cabinet comply with the acceptance criteria specified in the standards test using.