District cooling pipes - Bonded single pipe systems for directly buried cold water networks - Part 3: Factory made steel valve assembly for steel or plastic service pipe, polyurethane thermal insulation and a casing of polyethylene; German version EN 17415-3:2021
Edition 2021-11

District cooling pipes - Bonded single pipe systems for directly buried cold water networks - Part 1: Factory made pipe assembly of steel or plastic service pipe, polyurethane thermal insulation and a casing of polyethylene; German version EN 17415-1:2020
Edition 2021-11

Plastics piping systems for the trenchless replacement of underground pipeline networks - Part 2: Replacement off the line by horizontal directional drilling and impact moling (ISO 21225-2:2018); German version EN ISO 21225-2:2018
Edition 2019-06

District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 2: Factory made fitting and valve assemblies of steel service pipes, polyurethane thermal insulation and one casing of polyethylene; German and English version prEN 15698-2:2023
Edition 2023-08

District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 1: Factory made twin pipe assembly of steel service pipes, polyurethane thermal insulation and one casing of polyethylene; German and English version prEN 15698-1:2023
Edition 2023-08

District heating and district cooling pipes - Bonded pipe systems for directly buried hot and cold water networks - Part 2: Factory made steel valve assembly for draining and venting, polyurethane thermal insulation and a casing of polyethylene; German and English version prEN 488-2:2023
Edition 2023-08

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Part 1: Factory made steel valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene; German and English version prEN 488-1:2023
Edition 2023-08

Telecommunications Management Network (TMN) - Asynchronous Transfer Mode (ATM) management information model for the X interface between Operation Systems (OSs) of a Virtual Path (VP)/Virtual Channel (VC) cross connected network - Part 1: Configuration management (Endorsement of the English version EN 300820-1 V 1.2.1 (2000-11) as German Standard)
Edition 2001-08

Telecommunications Management Network (TMN) - Asynchronous Transfer Mode (ATM) management information model for the X interface between Operation Systems (OSs) of a Virtual Path (VP)/Virtual Channel (VC) cross connected network - Part 2: Alarm management (Endorsement of the English version EN 300820-2 V 1.3.1 (2000-11) as German Standard)
Edition 2001-08

Telecommunications Management Network (TMN) - Asynchronous Transfer Mode (ATM) management information model for the X interface between Operation Systems (OSs) of a Virtual Path (VP)/Virtual Channel (VC) cross connected network - Part 3: VP performance management (Endorsement of the English version EN 300820-3 V 1.1.1 (2000-11) as German Standard)
Edition 2001-08