FIRE EXTINGUISHERS
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100-CAH-01-IGDO © 2025, Workplace Safety & Prevention Services (WSPS)
1 877 494 WSPS (9777) | 905 614 1400 | WSPS.CA
Maintenance
Fire Extinguishers must be properly maintained to ensure that they will work when needed, and that
they are safe to use. A carbon dioxide fire extinguisher, for example, can build up a high static charge if
it is used when there is a breakdown of the insulation around the discharge horn. This can cause electric
shock.
Adequate maintenance of fire extinguishers consists of regular inspections, recharging as needed, and
a complete annual checkup and servicing. Records must be kept of all maintenance work carried out,
including inspections.
Testing and servicing is usually carried out by a service agency. If employees in your company look after
testing and servicing, they must be trained and fully qualified to do so.
Inspections
Fire extinguishers must be inspected at least once a month and more often where needed. Inspections
are visual checks to determine that:
The fire extinguisher is well supported:
– Hangers are fastened solidly
It is accessible:
– Can be easily reached
– Location signs are clear
– Class markings are clear
– Operating instructions are clear
It is in working condition:
– Discharge opening is clear
– Is fully charged
– Has not been tampered with
– Is not damaged
– Hydrostatic testing has been done
The ring pin is in place
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