2017DIN ISO 3864-2:2017 Graphical symbols - Safety colours and safety signs - Part 2: Design principles for product safety labels (ISO 3864-2:2016)
2008DIN ISO 3864-2:2008 Graphical symbols - Safety colours and safety signs - Part 2: Design principles for product safety labels (ISO 3864-2:2004);English version of DIN ISO 3864-2:2008-07