ISO 3864
ISO 3864 specifies international standards for safety signs and markings in workplaces and public facilities. These labels are graphical, to overcome language barriers. The standard is split into four parts:
- ISO 3864-1:2011 Part 1: Design principles for safety signs and safety
- ISO 3864-2:2016 Part 2: Design principles for product safety labels
- ISO 3864-3:2012 Part 3: Design principles for graphical symbols for use in safety signs
- ISO 3864-4:2011 Part 4: Colorimetric and photometric properties of safety sign materials
Colours
| Meaning | RAL Name | RAL Number | RGB Hex | Example of Colour |
| Warning | Signal Yellow | 1003 | #F9A800 | |
| Prohibition/Fire Equipment | Signal Red | 3001 | #9B2423 | |
| Mandatory | Signal Blue | 5005 | #005387 | |
| Safe Condition | Signal Green | 6032 | #237F52 | |
| Backgrounds and Symbol | Signal White | 9003 | #ECECE7 | |
| Symbol | Signal Black | 9004 | #2B2B2C |
Related standards
The corresponding American standard is ANSI Z535, which is incompatible with the ISO standard. ANSI standard ANSI Z535.6-2006 defines an optional accompanying text in one or more languages.ISO 3864 is extended by ISO 7010, which provides a set of symbols based on the principles and properties specified in ISO 3864.