Measurement and Analysis of Vapor Sensors Used at Underground Storage Tank Sites

Presents the results of an investigation to quantify the operating characteristics of vapor sensor technologies used at underground storage tank sites. During this study, the catalytic bead sensor was selected & tested for responses when exposed to various mixtures of methane, butane & xylene, as well as to determine the effects of humidity on their responses. The test results are presented as a list of sensor specifications to allow for direct comparison to metal oxide semiconductor gas sensors & polymer adsorption gas sensors, & to quantify the stability of sensor performance.