Fig 2.5.1a Basic Guide to Foam Selection and Use
2.5 USE OFFOAM
Refer to fire service training for the proper use of foam.
There are a wide variety of foam concentrates. Each user is responsible for
verifying that any foam concentrate chosen is suitable for the purpose
intended.
Improper use of foam can result in injury or damage to the environment. Follow
foam manufacturer's instructions and fire service training to avoid:
• Using wrong type of foam on a fire, i.e. Class A foam on a Class B fire.
• Mishandling of concentrates, some of which are flammable.
• Plunging foam into pools of burning liquid fuels.
• Causing environmental damage.
• Directing stream at personnel.
For Class B fires, lack of foam or interruption in the foam stream can cause a
break in the foam blanket and greatly increase the risk of injury or death. Make
sure that:
• Application rate is sufficient (see NFPA 11 or foam manufacturer's
recommendations).
• Enough concentrate is on hand to complete the task (see NFPA for
minimum duration time requirements).
• Foam logistics have been carefully planned. Allow for such things as:
• Storage of foam in a location not exposed to the hazard it protects.
• Personnel, equipment and technique to deliver adequate foam.
• Removal of empty foam containers.
• Keeping clear path to deliver foam as hoses, other equipment and
vehicles are deployed.
2.5.1 FOAM SELECTION
See figure 2.5.1 for a summary of typical uses for various foam types.
Apply as needed for penetration, isolation,
cooling, and smothering.
SOLID FUEL - CLASS A
CLASS A FOAM
Recommend using Class A foam that meets USDA Forest Service Interim Requirements for Foam for Wildland Fires,
Aircraft or Ground Application or NFPA 298 Foam Chemicals for Wildland Fire Control.
WILDLAND &
EXPOSURE PROTECTION
MOP UP & OVERHAUL
OPERATIONS
5
TASK FORCE TIPS 800.348.2686 www.tft.com
WARNING
WARNING
WARNING
