The foam blanket blocks oxygen supply to the fuel.
Fire fighting foam properties.
Foam is made up of three ingredients water foam concentrate and air.
Liquid drains from the foam blanket and forms an aqueous film that suppresses fuel vapor and seals the fuel surface.
It is recommended for use between 1 3 proportioning ratio.
When mixed in the correct proportions these three ingredients form a homogeneous foam blanket.
The water content of the foam solution produces a cooling effect for additional fire suppression.
Enhances the properties of protein foam by increasing foam fluidity and improves the properties of regular protein foam by providing faster knockdown and ex cellent fuel tolerance.
Tf3 is a natural protein based product which mimics the performance of angus petroseal c6 3 fffp an aviation industry standard for protein based fire fighting foams to provide realistic fire training without the use of fluorinated chemicals.
Super high expansion foam.
An alternative approach is to examine all the properties of fire fighting foams in order to identify the characteristics that need to be optimised in order to provide the overall suppression performance equivalent to afff or fffp4 foams in the absence of the film forming surfactants.
The surfactants used must produce foam in concentration of less than 1.
Fire fighting foam is a stable mass of small bubbles of lower density than most flammable liquids and water.
It is this second approach that will be.
1 5 2 equipment used for generating different expansion ratio foams 5 1 53 foam concentrates 5 1 5 4 typical uses and properties oflow medium and high expansion finished foams 6 chapter 2 foam concentrate 7 2 1 types offoam concentrate 7 2 1 1 general 7 2 1 2 protein based foam concentrates 8 a protein p 8 b fluoroprotein fp 9.
A fire fighting foam is simply a stable mass of small air filled bubbles which have a lower density than oil gasoline or water.
Other components of fire retardant foams are.
A fluorosurfactant free training foam which mimics the application and physical properties of angus petroseal c6 3 fffp fire fighting foam.
Super high expansion foam is a synthetic fire fighting foam concentrate specifically formulated for either low medium or high expansion foam generating equipment.
Use discharge and disposal of firefighting foam products usa.