Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1983-07-20
1984-07-17
Andrews, R. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204 98, 204101, 204265, 204277, 204278, 204401, C25B 100, C25B 126, C25C 122
Patent
active
044604483
ABSTRACT:
This invention provides a calibration unit for generating known concentrations of an oxidizing or a reducing gas in an inert carrier gas. THe gas-generating electrode is sandwiched between an ion-exchange membrane and a porous diffusion membrane for minimizing the liquid layer thickness around the electrode and for regularizing the rate of diffusion of the gas generated. The present invention is especially useful for calibrating gas sensors which detect, measure, and monitor the concentration of a gas in the atmosphere, and for providing an accurate low concentration of gas for use wherever desired.
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Andrews R. L.
Chapman Terryence
The Dow Chemical Company
Young A. J.
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