Firefighting foam solution is _ percent water.

Firefighting foam solution is _ percent water.

• A. 94 to 99.9
• B. 80 to 85.5
• C. 90 to 98.6
• D. 80 to 90.7

Answer: (A)

Foam solution is formed by diluting foam concentrate with water, and the water acts as the dominant component. In the final foam solution, the vast majority is water because the concentrate is added in only a small amount to create the foam additives that produce and stabilize the foam blanket. That’s why the solution is typically around 94 to 99.9 percent water—the remainder is the foam concentrate and additives that enable foaming. The exact proportion varies with the type of foam and the proportioning ratio, but the principle remains: water is the large majority of the foam solution.

Foam solution is formed by diluting foam concentrate with water, and the water acts as the dominant component. In the final foam solution, the vast majority is water because the concentrate is added in only a small amount to create the foam additives that produce and stabilize the foam blanket. That’s why the solution is typically around 94 to 99.9 percent water—the remainder is the foam concentrate and additives that enable foaming. The exact proportion varies with the type of foam and the proportioning ratio, but the principle remains: water is the large majority of the foam solution.