Blood Alcohol Concentration (BAC) is the relative proportion of ethyl alcohol (C2H5OH) in the blood based upon the number of grams of alcohol per 100 millilitres of blood, and often expressed as a percentage. The UK legal limit for drivers with a blood alcohol concentration (BAC) is 80 mg of alcohol per 100 ml of blood, in US terms this would be expressed as 0.08%.
Related Definitions in the Project: The HSE Management; Property and Unit
