The Influence of Temperature on Breath-Alcohol Analysis
نویسنده
چکیده
For determination of breath-alcohol concentration (BrAC) the examined subject has to perform a breath test with forced expiration. During this test essential physical quantities change continuously. Ethanol concentration, breath temperature, and breath flow are such important quantities. Significant results can only be obtained if concentration (BrAC) and temperature have reached final values and the expired volume (integral value upon breath flow) has exceeded a certain minimum value. According to our own experiences this minimum value depends on sex and age of the examined person.
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