ALTERNATIVE METHOD OF SAMPLING
ZERO TOLERANCE TESTING
Using the PAS Vr. for reliable confirmation of the absence of alcohol (no alcohol) may
best be obtained by:
Step 1
:
Instruct the subject to take a deep breath and exhale slowly
for about 5-10 seconds
.
Step 2
:
As the subject is exhaling place the sample port
approximately 6 inches from the subject's mouth and tap
and release the sensor control switch to activate the sensor
and sampling pump
.
Step 3
:
Hold the PAS Vr. directly in the breath stream until the
yellow sampling pump goes out.
Step 4:
Observe the bar-graph display for approximately 15
seconds or less and record the number of bars that light up
indicating the approximate concentration of breath alcohol
(BrAC).
Step 5
:
If no bars light up, the subject is likely free of breath/lung
alcohol. Further confirmation can be made by using the
active/direct
setting with a mouthpiece.
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