International lamp coding system (ILCOS) (IEC 61231:2010 + A1:2013); German version EN 61231:2010 + A1:2013
Edition 2014-06

Piezoelectric ceramic resonators and resonator units for frequency control and selection; standard values and conditions; measuring and test conditions; identical with IEC 60642, edition 1979
Edition 1988-04

Optical Emission Spectrometry (OES) - Part 2: Terms for flame and plasma systems
Edition 2001-12

Medical teletherapy systems with gamma-emitting sources - Part 2: Radiation safety requirements for installation
Edition 2003-06

Infrared free air applications (IEC 61920:2004); German version EN 61920:2004
Edition 2004-07

Indexing for describing the contents of documents; coordinate indexing with descriptors
Edition 1988-09

Telecontrol equipment and systems; part 4: performance requirements (IEC 60870-4:1990); german version HD 546.4 S1:1992
Edition 1992-10

Electrical and electronic measuring equipment - Documentation (IEC 61187:1993, modified); German version EN 61187:1994
Edition 1995-06

Image quality assurance in X-ray diagnosis - Part 56: Acceptance testing for hard copy cameras
Edition 1997-05

Live working - Insulating hollow tubes for electrical purposes (IEC 61235:1993, modified); German version EN 61235:1995
Edition 1997-07