Buick 1994 Roadmaster Owner's Manual page 158

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)
100 120 140 160 180 200 220 240
BODY WEIGHT IN POUNDS
'
HOURS
!
HOURS
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