Chevrolet 1994 Blazer Owner's Manual page 161

According to the American Medical Association, a 180-pound (82 kg)
person who drinks three 12-ounce (355
ml)
bottles of beer in an hour will
end up with a BAC of about 0.06 percent. The person would reach the same
BAC by drinking three &ounce (120
ml)
glasses of wine or three mixed
drinks if each had 1-1/2 ounces (45 ml) of a liquor like whiskey, gin or
vodka.
It's the amount of alcohol that counts. For example, if the same person
drank three double martinis (3 ounces or 90 ml of liquor each) within an
hour, the person's BAC would be close to 0.12 percent. A person who
consumes food just before or during drinking will have a slightly lower
BAC level.
OF DRINKS
NUMBER
(as in picture)
1 HOUR
The law in most U.S. states sets the legal limit at a BAC of 0.10 percent. In
Canada the limit is 0.08 percent, and in some other countries it's lower than
that. The BAC will be over 0.10 percent after three to six drinks (in one
hour). Of course, as we've seen, it depends on how much alcohol is in the
drinks, and how quickly the person drinks them.
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