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Alcohol by volume (abbreviated as alc/vol or ABV) is a standard measure of the volume of alcohol contained in a given volume of an alcoholic beverage, expressed as a volume percent. [ 1 ] [ 2 ] [ 3 ] It is defined as the number of millilitres (mL) of pure ethanol present in 100 mL (3.5 imp fl oz; 3.4 US fl oz) of solution at 20 °C (68 °F).
For other countries, it may be easiest to convert to UK units. For example, in the United States one standard drink contains 14 grams ≈ 1.75 units of alcohol, and so a US standard drink takes the body about an hour and three-quarters to process. Blood alcohol content can more accurately be estimated by using Widmark's formula. [46]
On 1 January 1980, Britain adopted the ABV system of measurement prescribed by the European Union, of which it was then a member. The OIML recommendation for ABV used by the EU states the alcohol by volume in a mixture containing alcohol as a percentage of the total volume of the mixture at a temperature of 293.15 K [20.00 °C; 68.00 °F].
For a standard-strength wine of 13% alcohol by volume (ABV), just under half a glass - 76ml - is one unit.
US customary units Imperial units Metric units Notes Miniature: 1.7 US fl oz: 1.8 imp fl oz: 50 mL: Replaced the 2 US fl oz (59 mL) US miniature-sized bottle after metrication. Typically served on airline flights. Also known as a "nip" or "shooter" in certain locales, or a “Mini” in Canada. Half pint: 6.8 US fl oz: 7.0 imp fl oz: 200 mL
The alcohol content of the spirit can then be measured using a hydrometer and tables of density of alcohol and water mixtures. [3] A second accurate method is the ebulliometer method, which uses the difference between the boiling temperature of pure water and the boiling temperature of the beer being tested.
A 2011 study, for instance, detected toxic formaldehyde in 132 of 508 alcohol beverage samples, which included beer, wine, spirits, and other sources of alcohol.
Blood alcohol content (BAC), also called blood alcohol concentration or blood alcohol level, is a measurement of alcohol intoxication used for legal or medical purposes. [1] BAC is expressed as mass of alcohol per volume of blood. In US and many international publications, BAC levels are written as a percentage such as 0.08%, i.e. there is 0.8 ...