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Southern California Research Institute |
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SCRI |
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Alcohol Measurement & Detection |
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Fiorentino, D. (1997). A laboratory study of passive alcohol sensors. In C. Mercier-Guyon (Ed.), Proceedings of the 14th International Conference on Alcohol, Drugs, and Traffic Safety, Annecy, France, 539-545.
Three PAS instruments were examined with 48 subjects. The mean BAC, as measured with an Intoxilyzer 5000 30 minutes after each subject.s last drink was 0.08 percent. PAS readings were obtained before alcohol was ingested, at peak BAC, and at nine post-peak times. One instrument allowed sampling only when positioned 5 to 7.5 inches from the subject’s mouth. The other instruments permit variable distances and were tested at 6 and 8 inches. Data were examined with BAC criteria of 0.00 percent, 0.04 percent, and 0.08 percent. There were no false positives: when no alcohol was present, the probability of a positive reading was zero. PAS values were lower and more variable than Intoxilyzer readings. The author concluded that the data support use of a PAS in conjunction with field sobriety tests and preliminary breath test instruments. |
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► Alcohol Measurement and Detection |
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