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A crossed-out flame in a red circle.
Also known as: No open flames, No fire sign, Crossed-out flame, P003
The no-naked-flames sign prohibits open fire, and it is a wider prohibition than no smoking — it covers pilot lights, welding and any ignition source. The two signs are separately registered because the restrictions are different.
Prohibits open flames and ignition sources in the marked area.
Contexts: Public information
Is broader than the no-smoking sign, covering any open flame or ignition source rather than only smoking materials, which is why the two are separately registered.
Contexts: Public information
Uses the general prohibition form defined in ISO 3864: a red annulus with a red diagonal bar over a black pictogram on white.
Contexts: Public information
A black flame outline on a white ground within a thick red circle, crossed by a red diagonal bar running from upper left to lower right.