This part of ISO 3864 gives principles, criteria and guidance for the design of graphical symbols for use in safety signs as defined in ISO 3864-1, and the safety sign element of product safety labels as defined in ISO 3864-2.
ISO 3864-3:2006 history
2012ISO 3864-3:2012 Graphical symbols - Safety colours and safety signs - Part 3: Design principles for graphical symbols for use in safety signs
2006ISO 3864-3:2006 Graphical symbols - Safety colours and safety signs - Part 3: Design principles for graphical symbols for use in safety signs