DIN Standards Committee Railway
ISO 3864-4
Graphical symbols - Safety colours and safety signs - Part 4: Colorimetric and photometric properties of safety sign materials
Graphische Symbole - Sicherheitsfarben und Sicherheitszeichen - Teil 4: Farb- und photometrische Eigenschaften von Trägermaterialien für Sicherheitszeichen
Responsible national committee
NA 095-01-06 GA - Joint working committee NASG/DKE: Safety identification
Responsible international committee
ISO/TC 145/SC 2 - Safety identification, signs, shapes, symbols and colours