Codes of practice for drinking water installations - Part 100: Protection of drinking water, drinking water quality control; DVGW code of practice
Edition 2011-08

Gas supply - Gas pipework for buildings - Maximum operating pressure less than or equal to 5 bar - Functional recommendations; German version EN 1775:2007
Edition 2007-10

Rubber hoses and hose assemblies for aircraft ground fuelling and defuelling - Specification (ISO 1825:2017); German version EN ISO 1825:2017
Edition 2018-03

Field acceptance tests of storage pumps
Edition 1971-10

General principles of cathodic protection in seawater; German version EN 12473:2014
Edition 2014-07

Galvanic anodes for cathodic protection in seawater and saline mud; German version EN 12496:2013
Edition 2014-02

Solar energy - Solar thermal collectors - Test methods (ISO 9806:2017); German version EN ISO 9806:2017
Edition 2018-04

Building environment design - Embedded radiant heating and cooling systems - Part 5: Installation (ISO 11855-5:2021); German version EN ISO 11855-5:2021
Edition 2022-04

Ships and marine technology - Drainage systems on ships and marine structures - Part 1: Sanitary drainage-system design (ISO 15749-1:2004); German version EN ISO 15749-1:2004
Edition 2004-09

Water based surface embedded heating and cooling systems - Part 4: Installation; German version EN 1264-4:2021
Edition 2021-08