Digital audio tape recorder reel to reel system, using 6,3 mm magnetic tape, for professional use; part 1: general requirements (IEC 61120-1:1991); German version EN 61120-1:1993
Edition 1994-01

Digital audio tape recorder reel to reel system, using 6,3 mm magnetic tape, for professional use; part 3: format B (IEC 61120-3:1991); German version EN 61120-3:1993
Edition 1994-02

Pumping stations; archimedian screw pumps; directives for planning
Edition 1992-03

Plain bearings; hydrodynamic plain thrust bearings under steady-state conditions; permissible operational parameters for calculation of pad thrust bearings
Edition 1991-06

Plain bearings; hydrodynamic plain thrust bearings under steady-state conditions; permissible operational parameters for calculation of pad thrust bearings
Edition 1991-06

Methods of measurement for equipment used in digital microwave radio transmission systems; part 3: measurements on satellite earth stations; section one: general (IEC 60835-3-1:1990); German version EN 60835-3-1:1992
Edition 1993-09

Methods of measurement for equipment used in digital microwave radio transmission systems - Part 2: Measurements for terrestrial radio-relay systems; section 7: Diversity switching and combining equipment (IEC 60835-2-7:1994); German version EN 60835-2-7:1994
Edition 1994-10

Piezoelectric filters; part 2: guide to the use of piezoelectric filters; section 1: quartz crystal filters; identical with IEC 60368-2-1:1988
Edition 1993-07

Characteristics of indoor and outdoor post insulators for systems with nominal voltages greater than 1000 V (IEC 60273:1990); German version HD 578 S1:1992
Edition 1993-08

Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics (IEC 60216-3:2021); German version EN IEC 60216-3:2021
Edition 2022-03