Method and device for aerosol size-selective sampling

Details Method and device for aerosol size-selective sampling Method and device for aerosol size-selective sampling

1996-10-16

1997-12-30

Spitzer, Robert

Gas separation: processes

Filtering

Plural separate media

95286, 73 3102, 55270, 55343, 553501, B01D 4612

Patent

active

057025061

ABSTRACT:
An aerosol size-selective sampling device is composed of pre-filter, a base housing, and a collector. The device is intended to take an aerosol sample from a given atmospheric air. The pre-filter is composed of two or more porous filtration materials arranged in one end of the base housing in a parallel manner for allowing the atmospheric air to pass therethrough in a parallel and diverting pattern before the atmospheric air is allowed to pass in a converging manner through the collector which is located in another end of the base housing. The pre-filter is able to attain a desired penetration rate profile as a function of an aerodynamic diameter of aerosol contained in the atmospheric air within a predetermined range of aerodynamic diameter.

REFERENCES:
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patent: 4902318 (1990-02-01), Stevens et al.
patent: 5294236 (1994-03-01), Baird
patent: 5498271 (1996-03-01), Marple et al.

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