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Testing the integrity of filters and sealing joints sealing

The purpose of the test is to determine whether the HEPA filters are intact and properly installed and to test the sealing joints sealing (appropriateness of housing and contact surface). The test is performed in accordance to ISO14644-3 guidelines, which demand testing on two different methods, that previous standard treats as equal.

Method with use of aerosol photometer

It is older method, quick and the most suitable for testing bigger systems with HEPA filtration. Before the start possibility of puff/distribution of aerosol has to be considered. Concentration of aerosol (particles) is bigger with this method, and this has to be considered in making decision about choice.

We use measuring equipment from renowned manufacturers Lighthouse, TSI, Topas.

All instruments are calibrated annually.

DPC method

DPC (discrete particle counter) METHOD WITH USE OF PARTICLE CONTER is newer method of testing and more reliable for achieving exact results. Allows displaying testing results. Non-complex for preparing systems and suitable for testing all types of devices that provide clean and safe environment. Requires more work with test results processing.

 Measuring integrity of filters

We use measuring equipment from renowned manufacturers Lighthouse, TSI, Topas.

All instruments are calibrated annually.