Confirmation Cutoff Levels and Methods Urine Screening Methodology In order to determine if a urine specimen is negative or positive for drugs of abuse, all specimens are initially screened by an enzyme immunoassay (EIA) procedure.
On average, 2 people can finish a full bottle of wine in  2.5 hours. A 750 ml (0.75 L) bottle of wine is 25.36 oz. If you drink a bottle of wine a week for your entire adult life you will consume about 2,970 bottles of wine.
You would then add 1 glass per person drinking wine per hour for each additional hour after that. You get just over 4 6oz glasses of wine per bottle, so you take the number of glasses and divide it by 4.23 (# of 6oz glasses in a 25.4oz(750ml) bottle) to get the number of bottles you will need.