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Safe observation distance

Distance a person can be from a safety sign while still able to identify the safety sign and have the opportunity to follow the message. Note 1 to entry: Adapted from ISO 3864-2.
Document
ISO
Context
International Standard
Origin document

ISO 3864-1:2011(en) Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety signs and safety markings

Release