Gas contamination detection device

Details Gas contamination detection device Gas contamination detection device

1982-01-27

1984-09-18

Bernstein, Hiram H.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 98, G01N 3106

Patent

active

044723563

ABSTRACT:
A device for detecting the degree of contamination of a gas filter system by a contaminating gas. The device comprises a filter chamber having a pair of grids positioned therewithin and coated with a semiconductive polymer whole bulk conductivity changes due to a chemical reaction between the polymer and a contaminating gas. Measurement of the change is then utilized to indicate the degree of contamination in the filter system.

REFERENCES:
patent: 2930015 (1960-03-01), Blumer
patent: 2940041 (1960-06-01), Jacobson
patent: 3831432 (1974-08-01), Cox
patent: 3924219 (1975-12-01), Braun
patent: 3999122 (1976-12-01), Winstel et al.
patent: 4264331 (1981-04-01), Klein et al.

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