2015DIN EN ISO 2538-2:2015-01 Geometrical product specifications (GPS) - Wedges - Part 2: Dimensioning and tolerancing (ISO 2538-2:2014); German version EN ISO 2538-2:2014
1970DIN EN ISO 2538-2 E:2012-02 Geometric Product Specification (GPS) Prismatic Part 2: Dimensions and Tolerances (Draft)