Alcohawk AlcoHawk Slim Owner's Manual - Page 5
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When performing a breath alcohol test, it is necessary to analyze an
alveolar or deep lung air sample. If the test sample is not based on a
deep lung sample, the sample analyzed could be diluted with breath of
lower alcohol concentration from the upper respiratory tract. This would
result in a lower than optimum test result. As a result, breath alcohol
testers listed on the Department of Transportation (DOT), National
Highway Traffic Safety Administration's (NHTSA) Conforming Products
List of Screening Devices To Measure Alcohol in Bodily Fluids, typically
have protocols which require the subject to deliver at least 1.5 liters, or
continuous blowing into the unit for least five (5) seconds.
Federal Register: May 4, 2001 (Volume 66, Number 87)
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Description Of Testing System
This device contains a sensor chip designed to test for the presence of
alcohol. A thick film heater is printed on the reverse of the chip placed
in the plastic housing. The metal oxide material is heated to a specific
temperature. The resistance of sensing material changes rapidly
according to gas concentration changes, thereby enabling the reading
of alcohol concentration by resistance measurement. This alcohol
concentration is directly related (as explained in the above paragraph)
to the concentration of alcohol in the blood. Therefore, this device can
give a reading that reflects an estimate of the concentration of alcohol in
the blood.
Dose-Specific Effects Of Alcohol Intoxication
The effects of alcohol intoxication are greatly influenced by individual
variations among users, as well as other factors such as altitude and
air temperature. The following are general dose-specifics effects of
alcohol, although some users may become intoxicated at a much lower
BAC than shown below. Because a safe reading on a breath alcohol
screener does not mean that a driver's reaction times can respond to
any emergency encountered, do not drink alcohol and drive.
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