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Evaluation of commercial breath-alcohol simulators: further studies
1Department of Medicine and Toxicology Laboratories, University of Oklahoma Health Sciences Center, Oklahoma City 73190.
Journal of Analytical Toxicology
|September 1, 1991
Abstract:
Exemplars of current commercial breath-alcohol simulators were studied to ascertain their suitability for control tests and as calibrators in breath-alcohol analysis. Temperature, effluent volumes and pressures, effluent-alcohol concentration, and alcohol depletion were measured for simulators coupled with various current alcohol analyzers. Effluent recirculation was found to extend the number of acceptable control test cycles by 3.2 x over nonrecirculation. We found substantial improvements in current commercial simulators and in their performance over those evaluated in 1979.