Describe the physical and chemical properties of each of the four types of fire extinguishing agents.

Description should include 

  • water—for class-A fires 
  • carbon dioxide (CO2)—for class-B or -C fires 
  • halogenated hydrocarbons (Halons)—for class-A, -B, or -C fires 
  • specialized dry powder—for class-D fires.

ACS:

AM.I.G.S10

Process/Skill Questions: 

  • How does one determine which extinguishing agent to use?
  • What are the drawbacks/hazards associated with various fire extinguishers? 
  • What can happen if the wrong extinguishing agent is used on a fire?