2008DIN EN 1112:2008-06 Sanitary tapware - Shower outlets for sanitary tapware for water supply systems of type 1 and type 2 - General technical specification; German version EN 1112:2008
2008DIN EN 1112:2008 Sanitary tapware - Shower outlets for sanitary tapware for water supply systems of type 1 and type 2 - General technical specification; English version of DIN EN 1112:2008-06