Rumble Measurement Test Record; St 33 and M 33
Edition 1971-03

Cam control switch elements for traction equipment
Edition 1984-01

Studio magnetic film transports for sound recording and reproduction; specifications and requirements
Edition 1988-05

Non-broadcast videotape recorders - Methods of measurement - Part 3: Audio characteristics for FM recording (IEC 61041-3:1993); German version EN 61041-3:1995
Edition 1996-01

Digital audio tape cassette system (DAT) - Part 3: DAT tape properties (IEC 61119-3:1992); German version EN 61119-3:1994
Edition 1994-09

Methods of measurement for radio transmitters - Part 12: Guideline for drawing up descriptive leaflets for transmitters and transposers for sound and television broadcasting; characteristics to be specified (IEC 60244-12-1:1989); German version EN 60244-12-1:1993
Edition 1994-10

Digital audio tape recorder; reel-to-reel system using 6,3 mm magnetic tape for professional use; part 4: magnetic tape properties; definitions and methods of measurement (IEC 61120-4:1992); German version EN 61120-4:1992
Edition 1993-11

Broadcast video tape recorders - Methods of measurement - Part 4: Analogue audio performance measurements (IEC 61237-4:1997); German version EN 61237-4:1997
Edition 1998-07

Acoustics - Application of new measurement methods in building and room acoustics (ISO 18233:2006); German version EN ISO 18233:2006
Edition 2006-08

Requirements on motion-picture films and sound records; motion-picture prints for optical projection
Edition 1983-12