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NCJRS Abstract

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NCJ Number: 107251 Find in a Library
Title: Evaluation of Three Pocket-Size Breath Alcohol Analyzers
Journal: Journal of the Canadian Society of Forensic Science  Volume:20  Issue:1  Dated:(March 1987)  Pages:19-27
Author(s): R Poon; B T Hodgson; I Hinberg; C Roawatt
Date Published: 1987
Annotation: A breath alcohol simulator was designed and used to evaluate the critical performance characteristics of three pocket-size breath alcohol analyzers: the Alco-Sensor III, the Alcohol-Checker RK-1000 and the Breathalyser PMT-1.
Abstract: Also evaluated were the accuracy and precision of the analyzers in self-monitoring of breath alcohol concentrations by comparing the results obtained by six volunteer drinkers with Breathalyzer Model 900A and Intoxilyzer Model 4011AS results. Studies with the simulator showed that Alcohol-Checker and Breathalyser PMT-1 readings were very sensitive to variations in the flow rate and duration of air flow (and hence, to variations in volume of breath exhaled). The Alcohol-Checker was also affected by the distance of the sensor from the outlet of the simulator. The Alco-Sensor III was unaffected by these variables. It was the only analyzer found to be sufficiently accurate, precise, and reliable over the clinically significant range of alcohol concentrations. Linear regression analysis of the results obtained in tests of drinking volunteers showed that Alco-Sensor readings correlated well with those of the Breathalyzer (r=0.982), whereas those obtained with the Alcohol-Checker and the Breathalyser PMT-1 correlated poorly (r=0.086 and -0.127, respectively). (Publisher abstract modified)
Main Term(s): Alcohol consumption analysis
Index Term(s): Police equipment
Page Count: 9
Format: Article
Type: Report (Study/Research)
Language: English
Country: Canada
Note: Presented in part at the joint conference of the Canadian Society of Forensic Science, Society of Forensic Toxicologists, Montreal, Quebec, 1985.
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=107251

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