- All ratings are shown on the extinguisher faceplate.
- Some extinguishers are marked with multiple ratings such as AB, BC and ABC. These extinguishers are capable of putting out more than one class of fire.
- Class A and B extinguishers carry a numerical rating that indicates how large a fire an experienced person can safely put out with that extinguisher.
- Class C extinguishers have only a letter rating to indicate that the extinguishing agent will not conduct electrical current.
- Class C extinguishers must also carry a Class A or B rating
- Class D extinguishers carry only a letter rating indicating their effectiveness on certain amounts of specific metals.
HOW TO USE A PORTABLE FIRE EXTINGUISHER
Remember the acronym, "P.A.S.S."
P ......Pull the Pin.
A ......Aim the extinguisher nozzle at the base of the flames.
S ......Squeeze trigger while holding the extinguisher upright.
S ......Sweep the extinguisher from side to side, covering the area of the fire with the extinguishing agent.
See this short video to learn a little more about fire extinguishers: