FIRE EXTINGUISHERS
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100-CAH-01-IGDO © 2025, Workplace Safety & Prevention Services (WSPS)
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Another marking system uses pictures which show both the uses and non-uses of the extinguisher.
This marking system is illustrated in Figure 5. Pictures give more information, but employees will need
training to be able to recognize and understand them. Note that with both marking systems, the use of
colour is optional.
Figure 5: Picture Markings Showing Suitability according to Class of Fire
Note regarding colours (if used):
Background for "YES" symbols is blue.
Background for "NO" symbols with slash mark ("NO") is black.
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