[How to use fire extinguishers]
[Gentle music]
[Voice over]
Upon discovery of a fire, it is important that you are able to identify the type of extinguisher quickly and correctly, that you will need to use.
Each class of fire requires an appropriate extinguisher and slightly different techniques of operation, due to the differences in throw, extinguisher duration and behaviour. To do this, read the information sign if present, the fire extinguisher itself will identify the pictographs on the front of the extinguisher.
Before removing the extinguisher from its bracket, check that the pressure gauge, if present, is in the green sector, indicating charge.
At a safe distance, remove the pin from the extinguisher by placing it on the ground, securing it firmly with one hand and pulling firmly on the extinguisher pin. Do not squeeze the handle as this will bind the pin and you will be unable to remove it.
Test the extinguisher away from the fire to get a feel for how far the extinguisher will throw and ensure that it is working correctly.
Approach the fire from an upwind direction if possible, ensuring you have a clear escape route. Always remember to walk and never run to the fire.
Squeeze the extinguisher handle and sweep at the base of the fire.
As you move away, ensure you remain facing the fire in case of reignition. Back away slowly and remove yourself from the situation.
Always remember the PASS acronym
Pull the pin
Aim the extinguisher at the base of the fire
Squeeze the handle
Sweep at the base of the fire
[Music]
For a CO2 extinguisher you will have limited range and this will need to be operated in close proximity to the fire increasing the danger.
You will also need to be aware of the risk of asphyxiation, if using it in an enclosed space. There is also no gauge on a CO2 extinguisher, making a test fire critical.
For a foam extinguisher, the aim is to create a solid blanket on top of the liquid, creating a barrier between the fuel and the fire. There are several ways to do this, including using the natural environment to lay the foam and further training is recommended if you are expected to use these regularly.
[Music fades]