Reciprocating internal combustion engines - Safety requirements for design and construction of engines for use in potentially explosive atmospheres - Part 1: Group II engines for use in flammable gas and vapour atmospheres; German version EN 1834-1:2000
Edition 2000-03

Sizes of posters and of billboards
Edition 1964-04

Nickel and nickel-copper alloys; castings
Edition 1971-07

Testing of permanent magnets; determination of the magnetic flux values in the working range
Edition 1981-03

Glass; resistance to attack by a boiling aqueous solution of mixed alkali; method of test and classification; identical with ISO 695:1991
Edition 1994-02

Code of practice for the safe use of fully enclosed oil-filled electrical equipment which may be contamined with PCBs; German version EN 50225:1996
Edition 1997-03

Definitions of CAMAC terms used in IEC-publications; identical with IEC 60678, edition 1980
Edition 1985-09

Acceptance conditions for gear hobbing machines - Testing of the accuracy (ISO 6545:1992)
Edition 1997-09

Acoustics - Noise emissions from road distribution and delivery processes - Part 1: Fundamentals and measurement methods
Edition 2025-11