The size of the sign is defined by the maximum viewing distance from which the sign is understandable. According to ISO 3864-1:2011, the viewing distance at which a sign of a particular size is conspicuous and comprehensible depends on the illumination of the sign.

To check the viewing distance of a specific sign, please start by choosing the application of the sign on your left hand side submenu.

• Life-saving and emergency equipment, escape route and fire fighting equipment signs
• Hazard signs
• Mandatory and Prohibition action signs
• Exception signs

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