Colorimetric gas measuring device

Details Colorimetric gas measuring device Colorimetric gas measuring device

1988-03-11

1990-02-27

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 58, 422 59, 436902, G01J 148

Patent

active

049044494

ABSTRACT:
The invention is directed to a colorimetric gas measuring device with an indicator path which is accessible for the gas to be detected via at least one inlet opening and which, however, is otherwise closed off with respect to the ambient. The colorimetric gas measuring device is improved so that the measuring time is extended and the sensitivity increased while at the same time providing a space-saving configuration. The gas measuring device is small and convenient to handle and can be carried on the person. For this purpose, the indicator paths are configured so as to extend in circuitous manner.

REFERENCES:
patent: 3113842 (1963-12-01), Udall
patent: 3437449 (1969-04-01), Luckey
patent: 3507622 (1970-04-01), Tammelin et al.
patent: 3884641 (1975-05-01), Kraffczyk et al.
patent: 3924219 (1975-12-01), Braun
patent: 4765962 (1988-08-01), Heim

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