NBN EN ISO 81714-1 : 2010

Foreword
1 Scope
2 Normative references
3 Definitions
4 Markers
5 Design of graphical symbols
    5.1 Graphic representation
    5.2 Design procedure
6 Design principles
    6.1 Shape
    6.2 Operational state
    6.3 Classes of graphical symbols
    6.4 Combination of graphical symbols
          6.4.1 General
          6.4.2 Graphical symbols for complex
                  assemblies
          6.4.3 Graphical symbols including flow
                  direction
    6.5 Grid; module
    6.6 Line width
    6.7 Arcs and lines
    6.8 Minimum space between parallel lines
    6.9 Hatched and filled areas
    6.10 Connect node
    6.11 Position of a connect node
    6.12 Terminal line
    6.13 Reference point
    6.14 Text assigned to graphical symbols
          6.14.1 Typeface of characters
          6.14.2 Set of characters
          6.14.3 Text orientation
          6.14.4 Location of text inside an outline
          6.14.5 Minimum distances
    6.15 Size of graphical symbols
7 Modification of proportions
8 Variants of graphical symbols
Annex A (informative) Bibliography

Gives basic rules for the design of graphical symbols used in the technical documentation of products which take into account basic application needs.