The invention is a standard alcohol gas cartridge for a drunkometer which contains the standard alcohol gas with the predetermined concentration, the value of the predetermined concentration of the standard alcohol gas being displayed on the outer surface of the cartridge 1 or is stored on the storing medium provided on the cartridge 1, the cartridge 1 having a gas outlet port 13 which is connectable to the drunkometer 30 to exhaust the standard alcohol gas to the drunkometer 30.