Pre-recorded optical reflective videodisk system "Laser vision" 50 Hz/625 lines; PAL (IEC 60856:1986 + A1:1993); German version EN 60856:1993 + A1:1993
Edition 1994-01

Videodisks; methods of measurements for parameters (IEC 61106:1993); German version EN 61106:1993
Edition 1994-01

Sound level meters - Additional requirements for special measuring tasks
Edition 2014-07

ATP measuring - Fundamentals for the measuring of the hygienic status with bioluminescence-method
Edition 2009-12

Audio recording - Minidisc system (IEC 61909:2000); German version EN 61909:2000
Edition 2001-04

Telecontrol equipment and systems; part 3: interfaces (electrical characteristics); IEC 60870-3:1989; german version HD 546.3 S1:1991
Edition 1992-02

Optical amplifiers - Test methods - Part 10-2: Multichannel parameters - Pulse method using a gated optical spectrum analyzer (IEC 61290-10-2:2007); German version EN 61290-10-2:2008
Edition 2008-07

Expression of performance of electrochemical analyzers - Part 5: Oxidation-reduction potential or redox potential (IEC 60746-5:1992)
Edition 1996-07

Industrial-process control systems - Methods of evaluating the performance of valve positioners with pneumatic outputs (IEC 61514:2000); German version EN 61514:2002
Edition 2002-11

Dynamic modules - Part 4-1: Software and hardware interface - 1 x 9 wavelength selective switch (IEC 62343-4-1:2016); German version EN 62343-4-1:2016
Edition 2017-02