SS 508-4:2013
[Current]
Graphical symbols – Safety colours and safety signs - Colorimetric and photometric properties of safety sign materials
...no other
external
illumination
1 2 3 4
Luminance
cd/m
2
Red x 0,705 0,592 0,574 0,663 W2
y 0,295 0,291 0,351 0,337
Yellow x 0,475 0,538 0,470...
...not translucent...
...Note that the colours of the lines giving the chromaticity boundaries in Figures 1 and 2 are arbitrary
and only give an indication of the associated col...