Filter Rating (Efficiency) Test
"To Serve Society's Filtration Needs"
This is our Company Policy.
Please click here for a summary of the filter rating (efficiency) test
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*Summary of the filter rating(efficiency) Test |
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To measure a filter’s rating, we use test equipment based on the below drain circuit. Inside the storage tank are spherical, latex beads that are dispersed and pass through the filter. During that time, samples of the liquid before and after the test filters are taken through openings. By measuring the number of particles captured of a certain diameter, we can calculate the efficiency rating for that particle size. |
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| Through the automatic particle counter, we can measure the number of particles of each diameter and use the below formula to calculate the filtration efficiency. | |
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Filtaration Efficiency Data |
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As for the above data, the particle size that is more than 99.9% captured has an absolute rating. For the above filter, the filter’s absolute rating is 7 microns. |
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For the fiber pleat and membrane filters, they have a high filter rating even just above the diameter with an absolute rating. |
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Please click here for a summary of the pressure drop vs. flow rate test |
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