Be safe.
The SDR is an international reserve asset. The SDR is not a currency, but its value is based on a basket of five currencies—the US dollar, the euro, the Chinese renminbi, the Japanese yen, and the British pound sterling.
The amount of liquid in your glass, can, or bottle does not necessarily match up to how much alcohol is actually in your drink. Different types of beer, wine, or malt liquor can have very different amounts of alcohol content. Different countries across the world have defined a standard drink differently based on the alcohol content in grams.