Simple unfired pressure vessels designed to contain air or nitrogen - Part 4: Aluminium alloy pressure vessels designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock; German version EN 286-4:1994
Edition 1994-11

Quality management in medical microbiology - Part 4: Requirements for investigations using light microscopes
Edition 1997-06

Measurement and control; performance tests on process computer systems; time measurement; test procedures
Edition 1987-01

Aerospace; electrical systems for aircraft; testing of electrical equipment and its compatibility with the electrical system
Edition 1989-11

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

Vacuum technology; terms and definitions; vacuum drying and lyophilisation
Edition 1981-03

Medical electrical equipment - Radionuclide calibrators - Particular methods for describing performance (IEC 61303:1994); German version EN 61303:1995
Edition 1996-03

Fasteners - Bolts, screws, studs and nuts - Symbols and descriptions of dimensions (ISO 225:2010); Multilingual version EN ISO 225:2010
Edition 2011-02

Thermal insulation - Determination of steady-state thermal transmission properties - Calibrated and guarded hot box (ISO 8990:1994); German version EN ISO 8990:1996
Edition 1996-09

Aerospace series; steel, nickel base and cobalt base alloy remelting stock and castings; technical specification; part 1: general requirements; german version EN 2103-1:1991
Edition 1991-11