Natural gas - Calculation of thermodynamic properties - Part 2: Single-phase properties (gas, liquid, and dense fluid) for extended ranges of application (ISO 20765-2:2015); German version EN ISO 20765-2:2018
Edition 2018-12

Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 3: Fittings (ISO 1452-3:2009); German version EN ISO 1452-3:2009
Edition 2010-04

Ductile iron and steel wide tolerance couplings and flange adaptors for use with pipes of different materials: ductile iron, Grey iron, steel, PVC-U, PVC-O, PE, fibre-cement; German version EN 14525:2022
Edition 2022-12

German standard methods for the examination of water, waste water and sludge; anions (group D); determination of dissolved silicate by spectrometry (D 21)
Edition 1990-10

Mechanical vibration - Resilient elements used in railway tracks - Part 1: Terms and definitions, classification, test procedures
Edition 2010-08

Corrosion of metals - Methods for evaluation of efficiency of water treatment apparatus for corrosion protection - Part 4: Laboratory corrosion test for removal of corrosion products in incrusted water installations
Edition 2000-04

Water quality - Determination of chromium(VI) - Photometric method for weakly contaminated water (ISO 18412:2005); German version EN ISO 18412:2006
Edition 2007-02

Railway applications - Straight and angled end cocks for brake pipe and main reservoir pipe; German version EN 14601:2005+A2:2021
Edition 2022-02

Pressure vessels for human occupancy (PVHO) - Multi-place pressure chamber systems for hyperbaric therapy - Performance, safety requirements and testing; German version EN 14931:2006
Edition 2006-08

Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide; German version EN 902:2016
Edition 2016-09