Foam Flashcards
1
Q
What are the seven properties of firefighting foam
A
Expansion - amount of foam made Stability - ability to remain intact Fluidity - onto and flow across other liquids Contamination resistence Sealing and Resealing Knockdown and extinction Burnback resistence
2
Q
What is foam made from
A
Water
Air
Foam concentrate
3
Q
How does foam work?
A
Excludes oxygen separates flames from fuel restricts the release of gases cooling heat barrier
4
Q
What are the hazards with foam
A
Slip hazard Disorientation Claustrophobic effect Sound dampening - distress signals TICs don't work Makes fires hard to locate Make risks hard to locate Reaction with class D fires Environmental hazard
