Fibre optic communication subsystem test procedures - Part 2-11: Digital systems - Averaged Q-factor determination using amplitude histogram evaluation for optical signal quality monitoring (IEC 61280-2-11:2006); German version EN 61280-2-11:2006
Edition 2006-11

Solid recovered fuels - Methods for the determination of biomass content (ISO 21644:2021, Corrected version 2021-03); German version EN ISO 21644:2021
Edition 2021-07

Acoustics - Recommended practice for the design of low-noise machinery and equipment - Part 2: Introduction to the physics of low-noise design (ISO/TR 11688-2:1998); German version EN ISO 11688-2:2000
Edition 2001-03

Determination of material resistance to permeation by chemicals - Part 1: Permeation by potentially hazardous liquid chemicals under conditions of continuous contact; German version EN 16523-1:2015+A1:2018
Edition 2018-12

Measurement microphones - Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison (IEC 61094-8:2012); German version EN 61094-8:2012 + AC:2013
Edition 2013-04

Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - In situ values of sound diffraction; German and English version prEN 1793-4:2023
Edition 2023-08

Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - Airborne sound insulation under direct sound field conditions; German and English version prEN 1793-6:2023
Edition 2023-08

Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - Sound absorption under direct sound field conditions; German and English version prEN 1793-5:2023
Edition 2023-08

Fire safety engineering - Part 2: Simulation of evacuation and personal safety
Edition 2022-08

Paints and varnishes - Determination of film thickness (ISO 2808:2019); German version EN ISO 2808:2019
Edition 2019-12