Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 1: Instruments (ISO 22232-1:2020); German version EN ISO 22232-1:2020
Edition 2021-09

Metrological aspects of non-automatic weighing instruments; German version EN 45501:2015
Edition 2016-03

Fibre optic interconnecting devices and passive components - Performance standard - Part 1: General and guidance (IEC 61753-1:2018 + COR1:2019); German version EN IEC 61753-1:2018 + AC:2019
Edition 2019-10

Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 2-5: Sealed closures for air blown fibre microduct, type 1, for category S & A; German version EN 50411-2-5:2009
Edition 2009-11

Optical amplifiers - Part 1: Generic specification (IEC 61291-1:2018); German version EN IEC 61291-1:2018
Edition 2019-06

Measuring method for determination of solarisation effect of fused silica optical fibers; Text in German and English
Edition 2017-01

Gas meters - Additional functionalities; German version EN 16314:2013
Edition 2013-09

Fibre management systems and protective housings to be used in optical fibre communication systems - Product specifications - Part 3-2: Single-mode mechanical fibre splice; German version EN 50411-3-2:2023
Edition 2024-06

LCD backlight unit - Part 2: Electro-optical measurement methods of LED backlight unit (IEC 62595-2:2012); German version EN 62595-2:2013
Edition 2013-08

Letter symbols for physical quantities; symbols for general use
Edition 1994-03