2071518-A is referenced by 7 patents.

An elutriator is provided comprising a filter formed by a random fibrous network having interstices of such size and distribution as to capture a major proportion of the non-respirable airborne particles in an air flow therethrough within a prescribed range of velocity for which particle capture is predominantly by inertial impaction. The filter suitably comprises porous foamed plastics material, preferably in a structure of contiguous layers having successively changing pore sizes and distribution, preferably of a polyester, and preferably having an oil coating. The filter will normally have a penetration function approximating the so-called Johannesburg curve, and is suitably employed as a pre-filter in a gravimetric particle sampling instrument.

Title
Elutriators
Application Number
GB19810006811 19810304
Publication Number
2071518 (A)
Application Date
March 4, 1981
Publication Date
September 23, 1981
Assignee
Nat Res Dev
IPC
B01D 39/16
G01N 01/22
B01D 46/00
B01D 39/16
A62B 23/00
G01N 01/22
B01D 46/00
B01D 39/16
A62B 23/00
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