Class B fire

How to deal with fire class B?

In the case of liquid fires, the correct extinguishing method is essential. The wrong extinguishing agent can actually make the fire worse. These are the best options:

• Foam extinguishers – Form a covering layer over the liquid and prevent flammable vapours from re-igniting. Suitable for petrol, alcohol and oil fires.
• Powder extinguishers – Work quickly by interrupting the fire's chemical reaction. Effective, but cause a lot of collateral damage and limit visibility in enclosed spaces.
• CO₂ fire extinguishers – Displace oxygen and extinguish fires without leaving residue. Suitable for indoor spaces and laboratories, but less effective outdoors.

Important: Never use water on flammable liquids. Water can cause the flammable liquid to spread, leading to the rapid expansion of the fire.

Here's how to reduce the risk of a Class B fire:

• Store flammable liquids safely, in well-sealed and ventilated storage areas, away from ignition sources.
• Use non-sparking tools and ensure there is no open flame in the vicinity when working with flammable substances.
• Keep the environment clean and ensure any spills are cleaned up immediately.
• Place suitable fire extinguishers in strategic locations and ensure that staff know how to use them.

What if the fire spreads?

If you act quickly, you can extinguish a liquid fire with the correct extinguishing agent. However, if the fire spreads rapidly or the fumes pose an explosion risk: evacuate immediately and call the fire brigade.

Flame helps with prevention and protection

Class B fires require the correct prevention and extinguishing agents. Flame supplies complete fire safety solutions, from foam and CO₂ extinguishers to inspections and advice. This ensures you are optimally prepared. Want to know more about the best protection for your workplace? Get in touch and let us advise you.