Honeywell 11255 manual Alpha Cell, Testing, Hepa Filters, Scan Tested HEPA Filters, General

Alpha Cell

HEPA Filters

See component chart on page 83.

General

Flanders offers a complete line of Alpha Cell HEPA Filters in two efficiencies to meet the needs of criti- cal applications where HEPA filtration is required. Individual testing, rigid quality control and modern assembly methods are used to ensure confor- mance to specifications. Alpha Cell HEPA and ULPA Filters are either UL 900 Class 1 or Class 2 listed.

Testing

Flanders individually tests and certifies each Alpha Cell HEPA Filter to meet the customer’s require- ments for resistance and efficiency (penetration) at the filters nominal rated capacity. This information appears on a test label affixed to the filter. When used with correctly selected and installed mounting frames or housings, Flanders Alpha Cell HEPA Filters will easily pass an in-place validation test to determine the overall system efficiency.

HEPA FILTERS

Each Alpha Cell HEPA Filter has a minimum effi- ciency of 99.97% on 0.30 micrometer size particles when tested at rated capacity on a Q-107 Penetrometer. Filters rated for 1000 cfm or less are challenged with an approved nearly monodis-

persed oil aerosol of 0.30 micrometer size. Filters rated for flows greater than 1000 cfm are tested using a polydispersed oil aerosol. By measuring the upstream and downstream concen ra ion of these particles with a light scattering pho ome er, the pen- etration can be determined and the efficiency can be calculated.

Scan Tested HEPA Filters

Each Scan Tested Alpha Cell HEPA filter has a min- imum efficiency of 99.99% on 0.30 micrometer par- ticles. Scan testing is in accordance with Section

6.2of IEST-RP-CC034.1, HEPA and ULPA Filter Leak Tests. In the sc n test, the filter is challenged with a high concentration of an approved oil aerosol or PSL (Polystyrene Latex Spheres). The media pack and pack-to-frame seal is scanned using a p otometer or particle counter to ensure that there are no leaks greater than .01% of the upstream concentration at 100 fpm face velocity.

Higher Efficiency ULPA Filters

Flan ers can provide Pureform® and Separator Style ULPA Filters with efficiencies up to 99.9995% on 0.12 micrometer size particles. Please contact the factory for more information.

Typical applications for

Alpha Cell Filters include:

•Hospitals

•Biomedical

•Pharmaceu ical

•Biotechno ogy

•Genet c Research

•Universities

•Laboratories

•Food Processing

•Photo Processing

•Semiconductor Fabrication

•Industrial Processing Systems

Flanders - Foremost in Air Filtration

Corporate Headquarters, St. Petersburg, FL 83