Guide Specifications

1.0General

1.1Alpha Cell HEPA filters shall be extended media (separator type) (Pureform separatorless type) filters as manufactured by Flanders.

1.2Filter sizes, capacities and construction options shall be as scheduled on the drawings.

1.3Filters shall be (UL 900 Class 1)( UL 900 Class

2)listed.

2.0Filter Construction

2.1The filter pack shall be cons ruct d by pleating a continuous sheet of non-woven water-resistant fiberglass media around hemmed-edge corru- gated aluminum separators. (or) The filter pack shall be constructed by pleating a continuous sheet of ormed, corrugated medium so that the pack is self-supporting without the use of spac- ers of any kind, including separators, tape strings, adhesives or strips of media.

2.2The filt r pack shall be sealed into a (galvaneal)

409 stainl ss steel) (304 stainless steel) (parti- cle board) (fire-retardant particleboard) (fire- retardant plywood) frame with a fire re ardant(polyurethane foam) ( solid urethane) sealant. (Steel frames shall be 16 ga.)(Wood frames shall be 3/4” thick.)

2.3 (A 40-durometer closed-cell neoprene gasket)

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(Silicone jel in a channel) shall be provided on one or more sides to seal the filter in the mount- ing device.

3.0Performance

3.1Initial and final resistances shall not exceed the scheduled values.

3.2Alpha Cell HEPA Filters shall have a minimum efficiency of 99.97% on 0.30 micrometer parti- cles when tested at rated capacity on a Q-107 Penetrometer Each filter shall be challenged with an approved nearly monodispersed oil aerosol of 0.30 micrometer size.Measure the upstream and down stream concentration of these particles with a light scattering photometer, determine the penetration and calculate the effi- ciency.

3.3Alpha Cell Scan Tested HEPA Filters shall have a minimum efficiency of 99.99% on 0.30 microm- eter particles. Scan Testing shall be in accor- dance with Section 6.2 of IEST-RP-CC034.1. The scan test shall consist of challenging the fil- ter with a high concentration of an approved oil aerosol or PSL Spheres. Utilizing a photometer or particle counter, the media pack and the pack- to- frame seal shall be scanned to insure that there are no leaks greater than .01% of the upstream concentration at 100 fpm face velocity

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Honeywell 11255 manual Guide Specifications, 0General

11255 specifications

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