Fomtec AFFF 1 percent A is an aqueous film-forming foam concentration (AFFF) made up of fluorocarbon and hydrocarbon surfactants combined with a variety of solvents, preservatives, and stabilisers. The foam develops an aqueous coating, swiftly cutting off the oxygen supply and extinguishing the fire. It is effective against all types of fires, from small cooking fires to large explosions.
The active ingredients in AFFF sprays include perfluorooctanoic acid (PFOA), which is a persistent bioaccumulative toxicant that has been found in high concentrations in the blood stream of people in some countries where it is used extensively for industrial processes, and other compounds such as decabromodiphenyl oxide (DecaBDE), which is a synthetic fire retardant that has been banned in many countries.
People can be exposed to PFOA through the consumption of food products that have been contaminated by PFOA during production and use, such as dairy products, meat products, and vegetables that have been treated with PFOA during processing. The U.S. Environmental Protection Agency (EPA) has determined that the average person may be exposed to about 400 micrograms of PFOA per day, although higher doses have been measured in people with greater consumption rates. The EPA also estimates that people will remain exposed to PFOA even after it is removed from products because it does not break down quickly in the environment.
Aqueous film forming foam (AFFF) is a very efficient type of fire suppression agent that may be used alone to fight flammable liquid pool fires or in combination with Halon 1301 to fight flames in Navy vessel mechanical areas. When the concentrate/water combination is ejected from the nozzle, foam develops spontaneously. The foam provides continuous coverage of the fire site.
The active ingredient in AFFF is 4-bromo-3-chlorophenol, commonly called bromochloropropane or BrCP. This chemical has a large molecular weight and is extremely water soluble; it will not evaporate or leak out of the container.
When ignited, AFFF produces heat that drives off some of the solvent (usually water), which leaves the bromine behind. This prevents the fuel from burning completely and helps contain the fire until it can be brought under control by other means. AFFF is effective against most open flame burns and smoke inhalation injuries. It works by disrupting the electrical conductivity of the respiratory system, preventing flames and embers from reaching deep into the lungs.
Firefighters usually apply AFFF with a high-pressure sprayer connected to a tanker truck full of the concentrate solution. The foam is then distributed over the fire site through constant motion of the nozzle.
AFFF is considered an inert material and does not break down during combustion.
AFFF, or Firefighting Aqueous Film Forming Foam, is an abbreviation for Firefighting Aqueous Film Forming Foam. It is applied to the surfaces near the base of flames in order to deprive the flame of oxygen and fuel. It is very good in suppressing and extinguishing flammable liquid flames, often known as Class B fires. The material forms a water-resistant film on the surface being sprayed.
Firefighting foam can be used to put out electrical fires by covering the source of heat with a fine mist. The foam prevents contact with the metal parts of circuit breakers and other equipment used to control electricity into buildings.
Electrical wiring is designed to carry alternating current (AC) at high voltage from a power station to the various loads that it serves. However something will always fail if there is any chance of water entering the system, so all electrical work needs to be done by trained professionals who know how to protect themselves from electric shock. Anyone working with electricity needs to follow safety procedures to prevent accidents happening.
The most common type of electrical hazard is called "electrical shock". This can happen when someone comes into contact with a live wire or gets wet from flooding without knowing it. Other hazards include: overheating devices, open circuits, and short circuits. Electrical shocks can cause injuries such as burns, cuts, and bruises. More serious effects include heart attacks, strokes, and even death.