Optical amplifiers - Part 5-2: Qualification specifications - Reliability qualification for optical fibre amplifiers (IEC 61291-5-2:2017); German version EN 61291-5-2:2017
Edition 2017-11

Aerospace series - Weldability and brazeability of materials in aerospace constructions - Part 006: Homogeneous assemblies of titanium alloys; German version EN 4632-006:2013
Edition 2013-11

Home and Building Electronic Systems (HBES) - Part 6-2 IoT Semantic Ontology model description; German version EN 50090-6-2:2021
Edition 2023-06

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

Fibre optic interconnecting devices and passive components - Performance standard - Part 056-2: Single mode fibre pigtailed style optical fuse for category C - Controlled environment (IEC 61753-056-2:2012); German version EN 61753-056-2:2013
Edition 2013-08

Multimedia systems and equipment for vehicles - Surround view system - Part 4: Application for camera monitor systems (IEC 63033-4:2022); German version EN IEC 63033-4:2022
Edition 2023-06

Calculation of load capacity of cylindrical gears; calculation of tooth strength
Edition 1987-12

Fibre optic interconnecting devices and passive components - Performance standard - Part 057-2: Single mode fibre plug-receptacle style optical fuse for category C - Controlled environment (IEC 61753-057-2:2012); German version EN 61753-057-2:2013
Edition 2013-10

Measurement of quartz crystal unit parameters by zero phase technique in a π-network - Part 1: Basic method for the measurement of resonance frequency and resonance resistance of quartz crystal units by zero phase technique in a π-network (IEC 60444-1:1986 + A1:1999); German version EN 60444-1:1997 + A1:1999
Edition 2000-09

Design of graphical symbols for use in the technical documentation of products - Part 2: Specification for graphical symbols in a computer sensible form, including graphical symbols for a reference library, and requirements for their interchange (IEC 81714-2:2006); German version EN 81714-2:2007
Edition 2007-08