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 (Endorsed by Asociación Española de Normalización in January of 2021.)
Edition 2021-01-01

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made steel valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene (Endorsed by Asociación Española de Normalización in November of 2019.)
Edition 2019-11-01

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene (Endorsed by Asociación Española de Normalización in November of 2019.)
Edition 2019-11-01

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made pipe assembly of steel service pipe, polyurethane thermal insulation and a casing of polyethylene (Endorsed by Asociación Española de Normalización in February of 2024.)
Edition 2024-02-01

European digital cellular telecommunications system (Phase 2) - Interworking between the Public Land Mobile Network (PLMN) and a Packet Switched Public Data Network/Integrated Services Digital Network (PSPDN/ISDN) for the support of packet switched data transmission services; English version ETS 300603/A1:1995
Edition 1995-09

Space engineering - Electrical design and interface requirements for power supply; English version EN 16603-20-20:2018
Edition 2019-04

Tooth Damage on Gear Trains; Designation, Characteristics, Causes
Edition 1979-07