International Organization for Standardization (ISO)
Status
Latest
ISO 3864-4:2011
Scope
IMPORTANT — The electronic file of this document contains colours which are considered to be
useful for the correct understanding of the document. Users should therefore consider printing this
document using a colour printer.
This part of ISO 3864 establishes the colorimetric and photometric requirements and test methods for the
colours of safety signs to be used in workplaces and public areas. It provides the colorimetric and photometric
specifications for the named safety and contrast colours prescribed in ISO 3864-1.
The physical requirements that safety signs have to meet are primarily related to daytime colour and normally
lit environments. This part of ISO 3864 also includes the colorimetric requirements and test methods for safety
signs and phosphorescent material which also operate in unlit environments.
This part of ISO 3864 is applicable to all locations where safety issues related to people need to be
addressed. However, it is not applicable to signalling used for guiding rail, road, river, maritime and air traffic
and, generally speaking, to those sectors subject to a regulation that may differ.
The colorimetric and photometric properties of retroreflective safety signs, retroreflective materials combined
with fluorescent or phosphorescent materials, or luminous safety signs activated by a radioactive source are
not specified in this part of ISO 3864.
ISO 3864-4:2011 Referenced Document
CIE 15 OCULAR LIGHTING EFFECTS ON HUMAN PHYSIOLOGY AND BEHAVIOUR (Including Erratum 1: 01/21/2009)