inc.   ·  · · · Technical alterations reserved (Date 1/99) ultrateflomem® P-PF-PT The ultrateflomem®  P-PF-PT – Teflon* membrane filter for the filtration of aggressive solvents, chemicals and gases The membrane for the filtration of aggressive solvents, chemicals and gases. SEM of the ultrateflomem®  membrane Product description: The ultrateflomem® filter is a pleated PTFE membrane filter, which offers maximum assurance of filtration performance and durability range against chemicals in severe process conditions. The filter element is manufactured exclusively by the use of Teflon* and polypropylene. The retention ra- te extends from 0.1 µm to 1 µm (for gases down to 0.01 µm). The Teflon* filter media is inherently hydro- phobic with a highly porous membrane structure. This ensures high flow rates and a high absorption of particles during the entire service life. The endcaps and the Teflon* membrane are thermally welded without the use of binders. This results in an integral filter cartridge which provides maximum durability range against chemi- cals with minimal extractables. Features: All components meet the FDA requirements for the contact with food in accordance with the CFR (Code of Federal Regulations) Title 21. ultrateflomem® filter elements ha- ve passed the toxicological tests according to USP XX Class VI for plastics. In particu- lar, the requirements of the chemical, bio- logical, cosmetic, electronic and the pharmaceutical industries are fulfilled. The ultrateflomem® filter is designed to re- move particles, microorganisms and col- loids from aggressive solvents, caustic li- quids or gases. The membrane is manufactured in accordance with the cGMP requirements (current Good Manufactuerer Practice), is non-fiber releasing and is ther- mally welded without the use of binders or other chemical additives. Applications: The ultrateflomem®  Teflon* membrane is, among others, designed and developed for the following applications: For the filtration of aqueous solutions, the ultrateflomem®  membrane has to be pre- lubricated with a suitable liquid of low surface tension (e.g. IPA). Due to the inherently hydrophobic filter media, the ultrateflomem®  membrane is also suitable for the following gases: v   Highly concentrated acids v   Bases v   Alcohols v   Chlorinated and fluorinated solvents v   Etchants v   Esters v   Ketones v   Photolithographic liquids v   Compressed air v   Fermentation air v   Technical gases v   Tank ventilation
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