Electrical measuring instruments - X-t recorders - Part 1: Definitions and requirements (IEC 61143-1:1992); German version EN 61143-1:1994
Edition 1995-01

Distribution automation using distribution line carrier systems - Part 4: Data communication protocols; section 32: Data link layer; logical link control (LLC) (IEC 61334-4-32:1996); German version EN 61334-4-32:1996
Edition 1997-09

Measurement of the Electrical Properties of Microwave Tubes; Part 6: High Power Clystrons
Edition 1978-02

Central heat-water-installations; terms and calculation-basis
Edition 1994-04

Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definitions (ISO 5725-1:1994)
Edition 1997-11

Aerospace; concepts, quantities and symbols for flight dynamics; aircraft geometry; ISO 1151-6:1982 (status as of 1984) modified
Edition 1990-10

Generic specification: cathode ray tubes; German version EN 111000:1991
Edition 1993-06

Generic specifications: solid state all-or-nothing relays of assessed quality; generic data and methods of test; german version EN 117000:1991
Edition 1992-02

Measurement of the electrical properties of electronic tubes; part 14: methods of measurement of radar and oscilloscope cathode-ray tubes
Edition 1980-05

Methods of measurement for equipment used in digital microwave radio transmission systems - Part 2: Measurements on terrestrial radio-relay systems; section 11: Cross-polarization interference canceller (IEC 60835-2-11:1996); German version EN 60835-2-11:1997
Edition 1997-07