Gas calibration method and apparatus

Details Gas calibration method and apparatus Gas calibration method and apparatus

1987-07-30

1989-05-16

Tokar, Michael J.

Measuring and testing

Gas analysis

Gas chromatography

422 80, G01N 2730

Patent

active

048298093

ABSTRACT:
A gas calibration method providing an absolute standard for the determination of an active gas in a gas mixture, comprises passing the gas mixture into a chamber (1) of known volume. The chamber contains a galvanic sensor ( b 2) providing a signal current, proportional to the rate of reaction of the active gas at the sensor electrode, to a current measuring device (8). After sealing the chamber, a signal processing means (9) samples the signals from (8) as a function of time, and calculates the sensitivity of the sensor and the concentration of the active gas.

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