EPD Capsule Filters Pleated Polypropylene Depth Media Plating Solutions Acids & Bases Etch Baths Solvents & Alcohols Process Water Photo Resists EPD capsules are made with polypropylene microfiber media and other polypropylene components. All materials were chosen for their high purity and broad chemical compatibility. Designed with optimal filtration area, the filters can remove large amounts of particulate and other contaminants over a long filter life. EPD capsules protect the critical membrane filters downstream by removing 99.9% of contaminants at the rated pore size. EPD capsule filter applications include prefiltration of process water before treatment (for UPDI), low to moderate temperature prefiltration of acids and bases, prefiltration of solvents, alcohols, plating solutions, photo resists and other fluids in bulk distribution systems. Wide range of high efficiency retention ratings H igh capacity for long life P refiltration of water, acids, bases, resists, plating solutions, solvents Capsule Length Pleated Polypropylene Depth * Media surface area varies due to varying media thickness Flow Rate / Filtration Area The following table represents typical water flow at a one psi (69 mbar) pressure differential across a single 2 inch capsule with 1.0 ft ² (930 cm²) of media with 1/2” FNPT ports. The test fluid is water at ambient temperature. Higher pressure drops are acceptable, but as flows increase the pressure drop of the housing becomes more apparent. Pore Size * For approximate flow rates for 5” through 30” capsules, refer to the appropriate cartridge data sheet Construction Materials Maximum Operating Parameters Liquid Operational Pressure Filtration Media Pleated Polypropylene Depth Media Gases Operational Pressure Media Support Operating Temperature Center Core Outer Support Cage Sealing Method Thermal Bonding Forward Differential Pressure 50 psid (3.4 bard) at 20 °C (68 °F) Reverse Differential Pressure Recommended Changeout Pressure Electronics Grade EPD Capsule Filters - Filtration Area*

Integrity Test Information Representative sample capsule elements are factory tested for integrity before shipment. Field duplication of these tests is not practical because of the absence of commercial portable testing equipment. The levels of extractables in aqueous extracts from electronics grade capsule filters are below 3ppb of TOC after product rinse during manufacturing. Electronics grade filters typically exhibit very low levels of non-volatile residues during startup. Ordering Information Critical Process Filtration uses state of the art computer controlled equipment to consistently...