Dop Testing Equipment

The dop test verifies the absence of leakage within a high efficiency hepa filter.

Dop testing equipment.

Dop testing is the process where the integrity of your high efficiency particulate air hepa filter is tested by introducing dispersed oil particulate dop. Equipment using a hepa or ulpa filter should be tested every time the equipment is moved to ensure no damage due to transportation has occurred and at regular intervals. Hepa filtered equipment should be tested whenever maintenance work is conducted such as changing or repair of hepa filters working on motors or any other maintenance that will affect the seal or integrity of the unit. Tecomak carry out dop dispersed oil particulate filter testing to industry standards to ensure clean rooms and other specialist or critical environments are operating to the highest standards.

Other oil like materials like dos can be substituted with similar results. The bottom line of this standard is that filters that meet the specification are able to successfully filter particulates in the air to an efficiency of 99 97. A process that challenges hepa filtered equipment to ensure it is safe to use in hazardous environments. It is also used by air filter manufacturers and various testing agencies to make an aerosol to test the effectiveness of air filters.

The test is a leak test of the complete filter installation comprising the filter media frame gasket and grid system. Assured equipment services is able to provide certified dop testing of hazardous dust appliances to ensure your equipment is operating at the required and maximum efficiency levels. Hepa filtered equipment should be tested for each project on site where the exhaust from the units is vented indoors or near exterior hvac systems. The filters are used in industrial equipment items such as fume hoods negative air units and powerful vacuums.

That means particulates greater than 0 3 microns will be filtered from the air. Dop tests ensure hepa filters meet the european standard en 1822. Give your workers the confidence that the equipment that is on site is functioning correctly. Why have a dop test.

The test results are verified and recorded on an official test certificate that is provided to the customer as proof of testing. Specializes in testing and validation of hepa filters utilizing state of the art equipment which uses the safest procedures. An aerosol generator is used to convert dop or pao oil to an aerosol with particle sizes down to 3 micron. The test is performed by introducing an aerosol upstream of the filter and scanning immediately downstream of the filter.

Testing of hepa filtered equipment what is a dop pao test. How small is that. If your filter is not working efficiently you run the risk of contamination entering your cleanroom potentially impacting on your processes and product quality and in turn affecting your cleanrooms classification.