Electroplated coatings - Duplex systems of zinc or zinc alloy coatings with organic coatings on iron or steel
Edition 2013-02

Aerospace series - Cables, optical 125 µm diameter cladding - Part 104: Semi-loose, ruggedized duplex construction 62,5/125 µm GI fibre nominal, 4,95 mm outside diameter - Product standard; German and English version EN 4641-104:2010
Edition 2011-06

Butt-welding pipe fittings - Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements; German version EN 10253-3:2008
Edition 2009-02

Butt-welding pipe fittings - Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements; German version EN 10253-3:2008, Corrigendum to DIN EN 10253-3:2009-02
Edition 2013-07

Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements; German and English version prEN 10253-4:2017
Edition 2017-11

Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements; German version EN 10253-4:2008
Edition 2008-06

Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements; German version EN 10253-4:2008, Corrigendum to DIN EN 10253-4:2008-06; German version EN 10253-4:2008/AC:2009
Edition 2009-11

Industrial application of powder organic coatings to hot dip galvanized or sherardized steel articles [duplex systems] - Specifications, recommendations and guidelines; German version EN 15773:2018
Edition 2018-03

Connector sets and interconnect components to be used in optical fibre communication systems - Product specifications - Part 7-1: Type LC-PC duplex terminated on IEC 60793-2 category A1a and A1b multimode fibre; German version EN 50377-7-1:2004
Edition 2004-10

Connector sets and interconnect components to be used in optical fibre communication systems - Product specifications - Part 7-2: LC-PC duplex terminated on IEC 60793-2 category B1.1 singlemode fibre; German version EN 50377-7-2:2004
Edition 2004-10