With renewed environmental awareness of materials we use, can “Class A” foams be routinely applied?
Definitely. When using “Class A” foam, demand only one that has received final approval from the U.S. Department of Agriculture through environmental testing submitted to the Intermountain Fire Science Laboratory in Missoula, MT, and the San Dimas Technology Center in San Dimas, CA. Copies of “Interim Requirements for Foam for Wildland Fires, Aircraft, and Ground Application”, testing procedures, and documentation of qualified foaming agents are available through the Laboratory.