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Alco-Check
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Introduction
The consumption of alcohol has a negative influence
on the perceptive faculties and capabilities. Even a low blood alcohol concentration
results in the limitation of the field of vision. Decisive optical information
gets lost.
For this reason no one should ever drive under the influence of alcohol.
At the workplace as well as at home the consumption of alcohol might cause
dangerous situations or accidents.
Whether someone has drunken too much cannot reliably conclude by his behaviour.
The determination of the blood alcohol content by means of blood samples
and analysis is not a method used for routine traffic checks. For this reason
quick test methods for measurement on the breath alcohol are used during
traffic checks, since the breath alcohol allows conclusions about the blood
alcohol concentration
However, apart from such checks there are always situations where it is
important to know the concentration, for example in the event of residual
blood alcohol. The drager alco-check tube can be used for individual orientated
measurement of the breath alcohol concentration
Principle of operation of the alco-check
tube
The alco-check originates from the well
known Drager detector tube which has been
used by the police force for decades. Alco check is available in the following
2 versions:
0.5% (0.05%)
0.8% (0.08%)
Drager Alco-Check consists of the actual tube and a breathing bag. First
the glass tube located in the plastic housing is opened by bending the two
flexible ends of the plastic housing. The clear crack shows that the glass
tube has been opened at its predetermined breaking point and is now ready
for measurement.
Before performing a measurement, the Alco-Check Tube is placed into the
opening of the non-inflated breathing bag by turning it such that the imprinted
arrow shows to the breathing bag.
The test person blows the exhaled air through
the tube into the breathing bag thus ensuring
that the volume required for the measurement
is drawn through the tube. Should the exhaled
air contain alcohol, the breath alcohol
specific reagent reacts and changes its
colour from yellow to green.
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The concentration of the breath alcohol at the moment of testing is characterized
by the length of the reagent layer. If the limit value is reached, the
green discolouration reaches the blue marking printed on the middle of
the tube, if the reading exceeeds the blue marking the blood alcohol concentration
has exceeded the limit value.
However, Alco-Check does not show when the alcohol was consumed and in
which quantities and whether the alcohol level is still increasing or
already decreasing.
Alco-check should only be used no sooner than 15 minutes after alcohol
was consumed, otherwise the alcohol in the mouth cavity might falsify
the result.
Smoking directly before the test should be avoided as well since it might
result in a brown discolouration of the reagent inside the tube.
Advantages of Drager Alco-Check
Safe breaking of the glass tube tips, flexible plastic ends, thus;
No contact
with glass splinters.
Tube cannot
be broken.
No additional
adaptation of mouth pieces required.
Tube cannot
be inserted into the breathing bag in the wrong direction
Disposal
method available; return of the tube at the sales outlet.
Alco-Check Manual
Alco-Check
Product Information
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