This standard specifies the dimensions of a cork mouth finish for corks and capsules for glass bottles, for wine that has a carbonation pressure not exceeding 2.0 g CO2/l, for use with natural corks.
DS/EN 12726:2000 history
2000DS/EN 12726:2000 Packaging - Cork mouth finish with a bore diameter of 18,5 mm for corks and tamper evident capsules