Fibre optic communication subsystem test procedures - Part 2-9: Digital systems - Optical signal-to-noise ratio measurement for dense wavelength-division multiplexed systems (IEC 61280-2-9:2009); German version EN 61280-2-9:2009
Edition 2009-12

Industrial-process control - Safety of analyser houses (IEC 65B/1272/CDV:2024); German and English version prEN IEC 61285:2024
Edition 2025-09

Ambient air - Standard method for the measurement of the concentration of ozone by ultraviolet photometry; German version EN 14625:2024
Edition 2025-12

Industrial-process control - Safety of analyzer houses (IEC 61285:2015); German version EN 61285:2015
Edition 2016-03

Ambient air - Standard method for the measurement of the concentration of carbon monoxide by non-dispersive infrared spectroscopy; German and English version prEN 14626:2022
Edition 2022-11

Ambient air - Standard method for the measurement of the concentration of sulphur dioxide by ultraviolet fluorescence; German version EN 14212:2024
Edition 2025-12

Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence; German version EN 14211:2024
Edition 2025-12

Bio-based products - Determination of the oxygen content using an elemental analyser; German version EN 17351:2020
Edition 2020-04

Nuclear fuel technology - Guidelines for ceramographic preparation of UO₂ sintered pellets for microstructure examination (ISO 16793:2018); English version EN ISO 16793:2021
Edition 2021-04

Measurement of quartz crystal unit parameters - Part 5: Methods for the determination of equivalent electrical parameters using automatic network analyser techniques and error correction (IEC 60444-5:1995); German version EN 60444-5:1997
Edition 1997-10