Relations between BAC and BrAC
Understanding alcohol units
In Europe, the metric by which BAC is measured is as follows:
- Latin countries : g/L
- Anglo-Saxon countries : mg/100mL
- German and Scandinavian countries : %o[w/w] or g/kg
In the Europe, the classic metric for BrAC is mg/L except for Anglo-Saxon countries (which is µg/100mL).
To easily convert BAC to BrAC, an approximative calculation consists of dividing the BAC result by 2,000 to obtain your approximate BrAC result. In other words, if your BAC is 0.8, you may consider that your BrAC is around 0.4.
Conversion ratios used in different countries
Currently, countries are not in agreement with the BBR and unfortunately, there isn’t any scientific formula to determine the exact ratio. In Europe, BBR can vary between 2.000:1 and 2.292:1.
In conclusion, the chemical correlation between the alcohol content in your blood (BAC) and your breath alcohol content (BrAC) is not an easy topic.
Breathalyzers like OCIGO allows you to measure your level of alcohol and the OCIGO APP will help you to easily adapt BAC and BrAC levels amongst European countries.
You want to know how are breath alcohol levels mesured with infrared spectroscopy? Our article explain it all!