ISO 3864-3
Graphical symbols - Safety colours and safety signs - Part 3: Design principles for graphical symbols for use in safety signs
Graphische Symbole - Sicherheitsfarben und Sicherheitszeichen - Teil 3: Gestaltungsgrundlagen für graphische Symbole zur Anwendung in Sicherheitszeichen
Responsible national committee
NA 095-01-06 GA - Joint working committee NASG/DKE: Safety identification
Responsible international committee
ISO/TC 145/SC 2/WG 1 - Safety identification, shapes, symbols and colours