Conversation so far:
what's the drink drive limit in australia
A blood alcohol concentration of 0.05 percent means that there is 0.05 grams of alcohol in every 100 milliliters of blood. This is the legal limit for driving in Australia.
why do women reach higher levels of blood alcohol concentration quicker than men
Because women's bodies have a higher ratio of fat to water, they reach a higher blood alcohol concentration after a single drink than men, even when matched for weight and size.
can enzymes account for the discrepancy in alcohol absorption between men and women?
Compared with men, women have less alcohol dehydrogenase, an enzyme in the liver and stomach that breaks down alcohol.

Question: what methods are used to measure the concentration
Self-contained rewrite: what methods are used to measure blood alcohol concentration