ISO 3864 is an International Organization for Standardization technical standard for safety signs and markings in workplaces and public facilities. These labels are graphical, to overcome language barriers.

  • 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

Part 1 explains how to layout the components of safety signage, dictate the color scheme and sizing information. Part 2 covers the same concepts as part one, but specifically for labels applied on machinery, vehicles and consumer goods. Part 3 contains guidance for designing new safety symbols. Part 4 specifies the standards for phosphorescent material and colours of a sign, as well as testing to confirm these signs meets required standards.

Components of ISO 3864

Colours

These are the colours specified in ISO Standard 3864-4 in RAL colour standard.!! Example of Colour

|-

| Warning || Signal Yellow || 1003 || 00, 35, 100, 00 || #F9A900 || style="background:#F9A900"|

|-

| Prohibition/Fire Equipment || Signal Red || 3001 || 20, 100, 100, 10 || #9B2423 || style="background:#9B2423"|

|-

| Mandatory || Signal Blue || 5005 || 95, 60, 00, 20 || #005387 || style="background:#005387"|

|-

| Safe Condition || Signal Green || 6032 || 90, 10, 80, 10 || #237F52 || style="background:#237F52"|

|-

| Backgrounds and Symbol || Signal White || 9003 || 00, 00, 00, 00 || #ECECE7 || style="background:#ECECE7"|

|-

| Symbol || Signal Black || 9004 || 35, 50, 40, 90 || #2B2B2C || style="background:#2B2B2C"|

|}

In addition, ISO standard 3864-2:2016 lays out the following colours that correspond to levels of risk. Like ISO 3864, ANSI Z535 includes multiple sections: 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.