Wastewater treatment plants - Part 7: Biological fixed-film reactors; German and English version prEN 12255-7:2023
Edition 2023-09

Terminal Equipment (TE) - End-to-end protocols for multimedia information retrieval services - Part 4: Videotex Enhanced Man Machine Interface (VEMMI) enhancements to support broadband multimedia information retrieval services; English version ETS 300777-4:1997
Edition 1998-07

Magnetic materials - Part 4: Methods of measurement of d.c. magnetic properties of magnetically soft materials (IEC 60404-4:1995 + A1:2000 + A2:2008); German version EN 60404-4:1997 + A1:2002 + A2:2008
Edition 2009-08

Communication networks and systems for power utility automation - Part 4: System and project management (IEC 61850-4:2011 + A1:2020); German version EN 61850-4:2011 + A1:2020
Edition 2022-05

Acoustics - Noise from shooting ranges - Part 4: Calculation of projectile sound (ISO/DIS 17201-4:2024); German and English version prEN ISO 17201-4:2024
Edition 2024-08

Eurocode 7: Geotechnical design - Part 1: General rules; German version EN 1997-1:2004 + AC:2009 + A1:2013
Edition 2014-03

Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 4: Type SC connector family (IEC 61754-4:2022); German version EN IEC 61754-4:2022
Edition 2023-09

Data structures for electronic product catalogues for building services - Part 4: Dictionary structures for product catalogue (ISO/DIS 16757-4:2024); German and English version prEN ISO 16757-4:2024
Edition 2024-04

Forensic Sciences - Part 4: Interpretation (ISO/DIS 21043-4:2024); German and English version prEN ISO 21043-4:2024
Edition 2024-06

Personal protective equipment - Knee protectors for work in the kneeling position - Part 4: Requirements for the combination of interoperable knee pads and garments (type 2); German and English version prEN 14404-4:2019
Edition 2019-04