Others are less obvious, but can be equally
dangerous, for example:
•
open-topped chambers;
•
vats;
•
combustion chambers in furnaces, etc;
•
ductwork;
•
unventilated or poorly ventilated rooms.
Prohibitions signs are round in shape and have a black
pictogram on a white background. They have a red
edging and a red diagonal line through the pictogram.
For example, the ‘no smoking’ signs, which you will see
in most work places, are a common prohibition sign.
The sign on the right means ‘No entry for people on
foot’, or ‘Don’t walk here’.
Prohibition signs
Danger, alarm - stop
Prohibition signs tell
you ‘Do not’