What is ATC foam?

ATC is a versatile firefighting foam for protection against a wide range of Class B flammable liquid hazards. It is a synthetic, film-forming foam designed for protection of water soluble Polar solvents as well as water-soluble Hydrocarbon flammable liquids.

What is AR AFFF foam?

Alcohol Resistant Aqueous Film-Forming Foam (AR-AFFF) concentrates are high performance synthetic foam concentrates comprised of fluorosurfactants, hydrocarbon surfactants, water soluble polymers, fluoropolymers, and polysaccharide gums.

What is AFFF foam used for?

Aqueous film forming foam (AFFF, or alcohol resistant AR-AFFF) is a highly effective foam used for fighting high-hazard flammable liquid fires. AFFF is usually created by combining foaming agents with fluorinated surfactants.

What is the difference between AFFF and AR AFFF?

OFAFFF AND AR-AFFF AFFF and AR-AFFF consist of essentially the same ingredients. These typically include fluorosurfactants, hydrocarbon surfactants, solvents, inorganic salts, corrosion inhibitors, water; and in the case of AR- AFFF, a polymer which is typically a polysaccharide.

Is Afff a Class B foam?

Class B foams can be divided into two categories: fluorinated foams and fluorine-free foams. Of the fluorinated foams, aqueous film forming foams or “AFFF” are the foams that contain varying amounts and mixtures of PFAS, and of the most concern to human health and the environment.

What is expansion ratio of foam?

Expansion Ratio: The ratio of volume of foam formed to the volume of solution used to generate the foam (example: an 8:1 expansion ratio means 800 gallons of finished foam were created from 100 gallons of foam solution).

Is AFFF foam alcohol resistant?

CHEMGUARD Alcohol Resistant Aqueous Film-Forming Foam Concentrates (AR-AFFF) combine fluoro- and hydrocarbon-surfactant technologies to provide superior fire and vapor suppression for Class B, polar solvent and hydrocarbon fuel fires. The foam blanket blocks oxygen supply to the fuel. …

Is high expansion foam AFFF?

High-expansion foams are used when an enclosed space, such as a basement or hangar, must be quickly filled. Low-expansion foams are used on burning spills. AFFF is the best for spills of jet fuels, FFFP is better for cases where the burning fuel can form deeper pools, and AR-AFFF is suitable for burning alcohols.

Is AFFF foam hazardous?

AFFF constitutes a U.S. Occupational Safety and Health Administration hazardous material because of its physical hazards, such as skin and eye irritation. Discharge of wastewater and runoff containing AFFF on land, at sea, or to surface water bodies is also subject to regulation under the Clean Water Act.

What class of foam is AFFF?

Class B
Class B Fluorine-Containing Firefighting Foams AFFF foams have the potential to create an adverse environmental impact if released uncontrolled to the environment, particularly if the foam solutions reach drinking water sources, groundwater, or surface waters.

How long is AFFF foam good for?

between 20-25 years
If kept in the original unopened and airtight Chemguard supplied container and stored within the temperature range of 35ºF – 120ºF (2ºC – 49ºC) a shelf life of between 20-25 years can be expected.

Who makes AFFF foam?

3M
These foams were manufactured in the United States from the late 1960s until 2002 exclusively by 3M and sold under the brand name “Lightwater” (DOD 2014). Lightwater AFFF contains PFOS and various precursors that could potentially break down in the environment to PFOS and shorter chain PFSAs such as PFHxS.