Generic specification: Discrete pressure contact power semiconductor devices (Qualification approval); German version EN 153000:1998
Edition 1999-01

Laser modules used for telecommunication - Reliability assessment (IEC 61751:1998); German version EN 61751:1998
Edition 1998-11

Fibre optic active components and devices - Reliability standards - Part 3: Laser modules used for telecommunication (IEC 62572-3:2016); German version EN 62572-3:2016
Edition 2017-07

Rooftop units - Testing and rating at standard rating conditions and part load conditions for calculation of seasonal performance; German and English version prEN 17625:2024
Edition 2024-08

Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 2: Determination of loss on ignition, total carbon, free carbon and silicon carbide, total and free silica and total and free silicon (ISO 21068-2:2008); German version EN ISO 21068-2:2008
Edition 2008-12

BIM Properties for lighting - Luminaires and sensing devices; German version CEN/TS 17623:2021
Edition 2021-08

Explanation of the mathematical addition of working voltages, insulation between circuits and use of PELV in TC 34 standards (IEC TR 63139:2018)
Edition 2019-05