DIN 4844-1:2012 Graphical symbols - Safety colours and safety signs - Part 1: Observation distances and colorimetric and photometric requirements
DIN ISO 3864-1:2012 Graphical symbols - Safety colours and safety signs - Part 1: Design principles for safety signs and safety markings (ISO 3864-1:2011)
DIN ISO 3864-3 Graphical symbols - Safety colours and safety signs - Part 3: Design principles for graphical symbols for use in safety signs (ISO 3864-3:2012)
ISO 20712-1:2008 Water safety signs and beach safety flags - Part 1: Specifications for water safety signs used in workplaces and public areas
ISO 7010:2011 Graphical symbols - Safety colours and safety signs - Registered safety signs
DIN 4844-2:2012 history
2021DIN 4844-2:2021 Graphical symbols - Safety colours and safety signs - Part 2: Registered safety signs
2015DIN 4844-2/A1:2015 Graphical symbols - Safety colours and safety signs - Part 2: Registered safety signs; Amendment A1