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A standard drink is a notional drink that contains a specified amount of pure alcohol (ethanol). The standard drink is used in many countries to quantify alcohol intake. It is usually expressed as a certain measure of beer, wine, or spirits. One standard drink always contains the same amount of alcohol regardless of the container size or the type of alcoholic beverage, but does not necessarily correspond to the typical serving size in the country in which it is served. The quantity of alcohol within a "standard drink" varies significantly from country to country. For example, in Australia, a "standard drink" is the amount of a beverage that contains 10 grams of alcohol at 20 degrees Celsius (12.7 ml)".〔(Guide to Labelling of Alcoholic Beverages )〕 A similar definition is used in New Zealand;.〔(ALAC - What's in a standard drink? )〕 A "standard drink" in Japan contains 25 ml (19.75 grams). In the United States, a "standard drink" is one that contains about 0.6 US fluid ounces 〔The US fluid ounce is about 4% larger than the no-longer-used Imperial fl.oz.〕 (18 ml or 14 grams) of pure alcohol. This is approximately the amount of alcohol in a glass of 5% ABV beer, a glass of 12% ABV wine, or a glass of a 40% ABV (80 proof) spirit.〔(rethinkingdrinking.niaaa.nih.gov, US NIH Web site:What's a "standard" drink? )〕 Labelling is usually required to give an indication of alcoholic content of a serving. Australia requires that "the label on a package of an alcoholic beverage must include a statement of the number of standard drinks in the package".〔 The term "standard drink" was used in the United Kingdom in the first guidelines (1984) that published "safe limits" for drinking, but this was replaced by reference to "alcohol units" in the 1987 guidelines and that term has been used in all subsequent UK guidance. A Unit of alcohol is defined as 10 millilitres (8 grams) of pure alcohol.〔(【引用サイトリンク】url=http://www.nhs.uk/chq/Pages/853.aspx?CategoryID=87 )〕 This definition is independent of the strength (% ABV) and amount (volume) of any individual alcoholic beverage. The number of units of alcohol in a bottle or can (and, optionally, the number of units in a typical serving) are indicated on the drink container. Typical servings deliver 1–3 units of alcohol.〔(UK NHS:How long does alcohol stay in your blood?, reviewed 2013 )〕 ==Defined by various countries== The amount of alcohol is stated in the table in both grams and millilitres. The number of standard drinks contained in 500ml of beer of 5% ABV (a typical large drink of beer) is stated for comparison.〔ICAP Report 5 - "What is a 'standard drink'". URL:(). Accessed on June 19, 2008.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「standard drink」の詳細全文を読む スポンサード リンク
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