Standard drinks意思

"Standard drinks" is a term used in many countries to refer to a specific quantity of alcohol that contains a certain amount of pure alcohol. The definition can vary slightly from country to country, but it is generally used as a standard measure to help people understand and keep track of their alcohol consumption.

For example, in the United States, a standard drink is defined as containing 0.6 ounces (17.7 milliliters) of pure alcohol. This can be achieved by consuming any of the following:

12 ounces of regular beer (usually about 5% alcohol by volume, or ABV) 8 ounces of malt liquor (usually about 7% ABV) 5 ounces of wine (usually about 12% ABV) 1.5 ounces of distilled spirits (such as vodka, whiskey, or gin) (usually about 40% ABV, also known as 80 proof)

The purpose of having a standard drink definition is to help individuals and public health officials understand the amount of alcohol consumed, which can be relevant for health and safety reasons. For example, it can help people track their own alcohol intake for personal health reasons, or it can be used to estimate blood alcohol content (BAC) for legal or safety purposes.