How often should fire fighting foam be tested?
NFPA-11 recommends that all foam systems and concentrates shall be thoroughly inspected and checked for proper operation annually.
What are the three types of foam concentrate?
They have different compositions:
- Synthetic firefighting foams: Fluorine-Free Foams (F3, also known as FFF): creating a foam blanket full of bubbles. Fluorinated foams: Aqueous Film Forming Foam (AFFF) and Alcohol-Resistant Aqueous Film Forming Foam (AR-AFFF also called AFFF-ARC)
- Protein-base foams: Protein foam.
What is the difference between AFFF and FFFP?
An AFFF Foam fire extinguisher is effective on Class A and Class B fires. It can be applied to Class B liquid spills to prevent ignition. They are ideal for emergency first response vehicles. An FFFP Foam fire extinguisher is effective on Class A and Class B fires.
What is FFFP foam?
Just like the FluoroProtein (FP) foam concentrates Film forming Fluoroprotein foams are based on advanced protein foam technology and are ideal for extinguishing and securing flammable hydrocarbon liquid fires.
How do you test a foam system?
The foam solution can be analyzed using a refractometer or a conductivity meter. Alternatively, the concentration can be determined by measuring the flow rates of both the water and the foam solution.
How is foam tested?
By using a dedicated testing machine, the material is pushed to its limits by undergoing thousands of compressions, from which the percentage of IFD (Indentation Force Deflection) loss is measured against the foam’s original height.
What does 3% AFFF mean?
Aqueous Film-Forming Foam
CHEMGUARD C3B 3% AFFF (Aqueous Film-Forming Foam) Concentrate combines fluoro- and hydrocarbon-surfactant technologies to provide superior fire and vapor suppression for Class B hydrocarbon fuel fires.
How do you calculate foam percentage?
The formula for calculating the needed foam concentrate at a flammable liquid release is as follows: Area X Critical Application Rate (CAR) X Eduction Rate (ER) X 15 = Foam Concentrate Needed.
How do you calculate foam solution?
What is expansion ratio of foam?
Expansion ratio of the foam is the ratio in which foam is generated from the foam solution. So if the expansion ratio of the foam is 1:10, this means that 1 m3 of foam solution can form 10 m3 of fire fighting foam. Out of these 10 m3 foam, 1 m3 is foam solution and rest 9m3 is air.
What does FFFP mean?
|FFFP||Film Forming Fluoroprotein Foam|
|FFFP||Future Faculty Fellowship Program (University of North Carolina)|
|FFFP||Fair Flowers Fair Plants (ethically-sourced horticulture)|
|FFFP||Fellowship Fund for Pakistan (Pakistan)|
What chemicals are in fire fighting foam?
Aqueous film forming foams (AFFF) are water-based and frequently contain hydrocarbon-based surfactant such as sodium alkyl sulfate, and fluorosurfactant, such as fluorotelomers, perfluorooctanoic acid (PFOA), or perfluorooctanesulfonic acid (PFOS).