The breath alcohol test tubes are used to check whether the threshold of 0.5 grams/litre of alcohol in blood, equivalent to 0.25 milligrams/litre in exhaled air, has been exceeded. The hygienic single-use kit contains a test tube and a plastic-film balloon. No metal file is needed to activate the tube: press both ends towards the puncture stops (see photograph).
The testing procedure is simple : inflate the balloon by blowing into it. Activate the tube by firmly pressing both ends, then insert its blue end into the balloon's dedicated opening. Squeeze the balloon so that all air passes through the tube in approximately 15 seconds. In the presence of alcohol, the reactive crystals turn green. Read the result 2–15 minutes after emptying the balloon: green crystals extending beyond the mark in the centre of the tube indicate that 0.25 milligrams/litre in exhaled air has been exceeded.
Important:
1. Testing with the breath alcohol tube must take place at least 10 minutes after drinking alcohol.
2. The maximum detected alcohol level is reached approximately one hour after alcohol consumption.
