Plastics - Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 2: Method by measuring the oxygen demand in closed respirometer (ISO 23977-2:2020); German version EN ISO 23977-2:2021
Edition 2022-01

Water quality - Determination of biochemical oxygen demand after n days (BODₙ) - Part 1: Dilution and seeding method with allylthiourea addition (ISO 5815-1:2019); German version EN ISO 5815-1:2019
Edition 2020-11

Central heat-water-installations; rules for the determination of the water-heat-demand in dwelling-houses
Edition 1994-04

Respiratory protective devices - Plug-in connection between lung governed demand valve and facepiece for self-contained open-circuit compressed air breathing apparatus for use by German fire brigade
Edition 2014-12

Private Integrated Services Network (PISN) - Mapping functions for the employment of a circuit mode basic service and the supplementary service user-to-user signalling as a pair of on-demand inter-PINX connections (Mapping/UUS) (Endorsement of the English version EN 301102 V 1.1.1 (1998-06) as German standard)
Edition 2000-03

Compressed air - Energy efficiency - Assessment (ISO 11011:2013); German version EN ISO 11011:2015
Edition 2015-08

Respiratory equipment - Open-circuit self-contained compressed air diving apparatus - Requirements, testing and marking; German version EN 250:2014
Edition 2014-07

Digital addressable lighting interface - Part 221: Particular requirements for control gear - Demand Response (device type 20) (IEC 62386-221:2018); German version EN IEC 62386-221:2018
Edition 2019-04

Frame relay services - Part 1: General description; English version ETS 300399-1:1995
Edition 1995-11