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Permeability Plugging Tester
The Permeability Plugging Tester (PPT), is a modification of the 500 mL HTHP Filter Press. The instrument is used for running filtration tests on plugging materials without the interference of particles settling on the filter medium. Typical differential pressures are much higher than those seen in standard HTHP filtration testing. The pressure cell is the same as that used on the HTHP Filter Press, but it is inverted with the filter and receiver on top. Several filter media may be used, such as ¼" thick fused aluminum oxide disks, conventional filter paper, or sintered metal filters.
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