Information processing; switching algebra, mathematical signs and symbols
Edition 1985-11

Wallcoverings - Vocabulary and symbols; German version EN 235:2020
Edition 2020-08

Control technology; graphical symbols and identifying letters for process control engineering; representation of details
Edition 1991-02

Pressure equipment - Part 2: Quantities, symbols and units; German version EN 764-2:2012
Edition 2012-04

Plain bearings - Terms, definitions, classification and symbols - Part 4: Basic symbols (ISO 4378-4:2009)
Edition 2013-12

Refrigerating systems and heat pumps - System flow diagrams and piping and instrument diagrams - Layout and symbols; German version EN 1861:1998
Edition 1998-07

Soil quality - Soil water and the unsaturated zone - Definitions, symbols and theory (ISO 15709:2002)
Edition 2006-06

Plain bearings - Terms, definitions, classification and symbols - Part 5: Application of symbols (ISO 4378-5:2009)
Edition 2013-12

Plain bearings - Terms, definitions, classification and symbols - Part 2: Friction and wear (ISO 4378-2:2009)
Edition 2013-12

Plain bearings - Terms, definitions, classification and symbols - Part 3: Lubrication (ISO 4378-3:2009)
Edition 2013-12