An internal floating roof's purpose is to create a seal between the tank and the atmosphere. Sealing a tank leaves no gap through which to distribute foam. Foam can be pumped in through a manhole.
It's important to understand the various characteristics associated with specific fire extinguisher models placed within such settings, as well as the types and configurations of Class B fires that can be presented.
National Foam announced March 1 that it will discontinue the sale of all PFAS-based foam concentrates into the State of Maryland.
Officials report the PFAS spill happened during required testing of one of the Pellston Airport's onsite crash trucks.
A new study heightens concerns about firefighters’ exposure to the fluorinated “forever chemicals” known as PFAS: Nearly 99 percent of the fluorine found in tests of dust from inside fire stations likely came from unknown PFAS chemicals that could not be identified as ones that researchers had tested for.
Filtration system may have been overcome by heavy summer rains.
A contract to incinerate foam containing fluorinated compounds has been called into question.
Funding supports assessment of firefighter exposure through multiple pathways.
A deluge-type fire suppression system had been accidentally activated.
Williams Fire & Hazard Control's Thunderstorm W813A is an aqueous film forming foam concentrate that combines flourocarbon and hydrocarbon surfactant to provide superior fire and vapor suppression for Class B, polar solvent, and hydrocarbon fuel fires.