Did you know using the wrong fire extinguisher can make a fire worse? There are 5 classifications that determine what type of fire extinguisher is needed. There are Class A, B, C, D, and K fires.
Class A Fires: Ordinary Combustibles
Fires involving paper, wood, rubber, plastic, etc. Class A fires are the most common type of fires.
Class B Fires: Flammable or Combustible Liquids/Gases
This class involves flammable liquids and gasses such as gasoline, paint, kerosene, alcohol, and more. Smothering the fire or removing oxygen from the fire is the best way to put it out.
Class C Fires: Electrical
This class includes energized electrical equipment. Examples include:
- Generators
- Transformers
- Solar panels
- Circuit breakers
- And, batteries
Class D Fires: Metals
This class involves metals such as magnesium, lithium, potassium, and more. Class D fires are more common in commercial or industrial environments where metal work is done.
Class K Fires: Combustible Cooking
Examples of combustible cooking items include:
- Grease or oil
- Animal oils
- Or, fats
Fire Extinguishers
The following color code helps indicate what fire extinguisher can be used on certain fire classes.
- Red label: contains water, suitable for Class A fires
- Tan label: contains foam spray, effective on Class A or B fires
- Blue label: contains ABC powder, safe for use on all fire classes, EXCEPT Class K fires
- Black label: contains carbon dioxide, ideal for Class B and C fires
- And, Yellow label: contains wet chemicals, designed for Class A and K fires
P.A.S.S Technique
The most common technique for using a fire extinguisher is the P.A.S.S technique.
P.A.S.S. is an acronym for Pull, Aim, Squeeze, and Sweep.
- Pull the pin
- Aim the nozzle of the fire extinguisher low at the base of the fire
- Squeeze the trigger; squeeze it slowly and evenly
- And, Sweep the extinguisher from side to side to cover all areas the fire may have spread to
Resources
The American Red Cross provides information on Home Fire Safety.
The National Safety Council provides Fire Safety information on their webpage.
The U.S. Fire Administration offers social media graphics, stock photos, and handouts.
The National Fire Protection Association offers downloadable Safety Tip Sheets regarding fire causes, fire prevention, and fire safety education.
JJ Safety offers safety meetings on fire safety topics.
Conclusion
Selecting the right type of fire extinguisher for your workplace or home is essential for ensuring safety in the event of a fire. Understanding the different classes of fires and choosing an extinguisher that matches the potential risks is crucial for effective fire prevention and response. Always ensure fire extinguishers are easily accessible, well-maintained, and inspected regularly to be ready when needed most.