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DIN 4844 1-4 „Graphical symbols - Safety Colors and Safety Signs“

Part 1 “Design principles for safety signs in workplaces and public areas”

This norm determines the size and viewing distance and provides a unified design of safety markings.

Part 2: “Overview of Safety Signs“

Uniform design of safety signs

Part 3: “Egress and Rescue Maps“

Provides requirements on design and size of egress and rescue maps in working places and in public areas.

You will find the exact wording at: www.beuth.de