Blood Alcohol Level Chart Blood alcohol content (BAC) charts are compiled using medical and scientific information. They are used to estimate the concentration of alcohol in a person's blood. BAC charts from different companies will have minor differences, but they generally give similar information on a person's intoxication level based on the amount of alcohol they have consumed. Washington.. Based on data appearing in the National Bureau of Standards Bulletin, vol. 9, pp. 424 425 (publication of the National Institute of Standards and Technology).
LET'S PUT IT ALL ON THE TABLE Blood Alcohol Level (BAL) is the amount of alcohol present in your blood as you drink. It's calculated by determining how many milligrams of alcohol are present in 100 milliliters of blood.. A blood alcohol level chart can help people estimate how much alcohol may be in their bloodstream after drinking. Learn more in this article.