This European Standard specifies the dimensions of the screw finish for glass containers designated MCA 2 for one way glass.
EN 16291-2:2013 history
2014EN 16291-2:2013/AC:2014 Glass packaging - Screw finishes for pressure capsules - Part 2: One way glass MCA 2 finish
2013EN 16291-2:2013 Glass packaging - Screw finishes for pressure capsules - Part 2: One way glass MCA 2 finish (Incorporating corrigendum August 2014)