Prohibition signs chart
9 symbols and what they mean · symbolindex.com
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Do not extinguish with waterNever use water on a fire here
Do not touchYou must not touch the equipment, surface or object the sign is placed on or next to.
Do not use lift in the event of fireDo not use the lift if there is a fire
General prohibition signSomething is forbidden here
No activated mobile phonesSwitch off mobile phones
No open flame; fire, open ignition sources and smoking prohibitedNo open flames, fire or smoking
No smokingSmoking is not allowed
No thoroughfare / no access for pedestriansNo access on foot
Not drinking waterWater is not safe to drink