This document specifies the dimensions of the 26 mm tall crown finish for glass bottles containing beverages. The tall crown finish is designed to use a metal crown cap (see e.g. EN 17177).
EN ISO 12821:2019 history
2019EN ISO 12821:2019 Glass packaging - 26 H 180 crown finish - Dimensions (ISO 12821:2019)
2015EN ISO 12821:2015 Glass packaging - 26 H 180 crown finish - Dimensions