Buy a BreathScan personal alcohol analyser test
Donald R. Wilkinson, Ph.D.
Toxtrap, Inc.
1059 Horsepond Rd.
Dover, DE 19901
January 3, 2000
At the request of Mr. J. Robert Zettl, Forensic Consultants, Inc. 1500 East Mineral Place, Littleton, Co, Toxtrap, Inc. completed an evaluation of four batches of BreathScanŽ personal alcohol analyser test consisting of twenty five tubes per batch. Each batch was designed to indicate a different alcohol level (0.02%, 0.04%, 0.08% and 0.10%). The personal analyser test protocol used was similar to the protocol developed by Dr. David Cowan of Kings College London and used in a previous evaluation by Duo Research, Inc. in April 1992. This evaluation was carried out on December 22, 1999 and December 29, 1999.
The purpose of the evaluation was to measure effectiveness and reproducibility of the indicator color change at claimed alcohol concentration levels. On five separate occasions, five randomly selected tubes from each batch were exposed to its corresponding simulated breath containing either 0.02%, 0.04%, 0.08% or 0.10% alcohol. Readings were taken in one, two and three minutes following exposure.
Four different tube batches were evaluated:
A. Batch A081699 (0.02%)
B. Batch B040899 (0.04%)
C. Batch C061699 (0.08%)
D. Batch D060899 (0.10%)
Summary of Results After Two Minutes of Exposure:
In all cases 80% or more of indicator crystals produced a color change. At this level there is an obvious color change indicating presence of alcohol concentration no lower than the level tested.
Conclusions:
From this evaluation it was observed that each batch of personal breath alcohol analyser test produced a maximum (95%) or near maximum (80%) color change within the prescribed two minutes of exposure to simulated breath alcohol concentrations at their labeled detection levels. These results support the manufacturer's claim that these devices are capable of detecting breath alcohol concentrations of 0.02% (Device A), 0.04% (Device B), 0.08% (Device C) and 0.10% (Device D).
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