Firefighting foam - Wikipedia
Class A foams were developed in the mid-1980s for fighting wildfires. Class A foams lower the surface tension of the water, which assists in the wetting and saturation of Class A foams with …
What is a Class A Foam? A product that relies primarily on the water it contains for firefighting. These products contain foaming agents which create air bubbles when aerated and wetting …
Class A Foams - National Foam
Environmentally responsible KnockDown®, a Class A foam concentrate, is a unique formulation providing unmatched firefighting performance and flexibility. Qualified to USDA Forest Service …
Class A And B: What You Need To Know About Foam
2010年4月1日 · As a carbon-loving solution, Class A foam soaks into solid, combustible materials by breaking down the surface tension of the water. It helps the water penetrate the burning …
Class A foams may be used as a firefighting agent or as a fire barrier. When used as a wetting agent, the concentrate lowers the surface tension of the water, allowing better penetration into …
THE PROS AND CONS OF CLASS A FOAM - Fire Engineering
1992年7月1日 · Class A foam provides a visual verification of agent application on the fire. Class A foam appears to affect three sides of the fire tetrahedron: oxygen, fuel, and heat.”
This publication covers the basics of using class A foams and discusses their adaptability to present application equipment. Its purposes are to provide: Basic understanding of how class …
Class A foam concentrates are specifically designed to combat …
Class A foams are well-suited for response firefighting of structural, wildland, and industrial fires that involve ordinary combustible materials such as wood, paper, coal, rubber, and plastic. …
Using Class A Foam for Fire Attack
2018年8月4日 · The use of Class A foam is a proven tool to increase effectiveness and efficiency of any water stream. From structure to wildland suppression, using foam during operations is a …
WHAT IS CLASS A FOAM AND HOW DOES IT WORK?
1992年7月1日 · Class A foam is a synthetic water-soluble organic preparation that is chemically different from soap. However, it resembles soap in its ability to emulsify oils and...