Class a foam

Firefighting foam is a material used for fire suppression. It both coats the fuel for the fire, suppressing combustion and cools the fire. These foams have been around since the beginning of the 20th century and contain surfactants foaming agents , organic solvents, corrosion inhibitors, and stabilizers. Class A foams were developed specifically for controlling wildfires, and is now used for class A fires, such as structure fires. They lower the surface tension of the water, which wets fuels and suppresses fire and prevents reignition.

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Content:

• Chemguard DirectAttack Class A Foam, 5 Gal
• Unit of competency details
• Class A And B: What You Need To Know About Foam
• Class A Foam Concentrates
• Firefighting foam
• Phos-Chek WD881 Class A Foam – 5 Gallon Pail

WATCH RELATED VIDEO: Class A Foam Pt 1

Chemguard DirectAttack Class A Foam, 5 Gal

AFFF is usually created by combining foaming agents with fluorinated surfactants. Per- and polyfluoroalkyl substances PFAS are the active ingredient in these fluorinated surfactants.

When mixed with water and discharged, the foam forms an aqueous film that quickly cuts off the oxygen to a flame, extinguishes the fire, and stops the fire from relighting. It may not be easy to tell if the foam you have contains PFAS.

These chemicals are not required to be reported on any safety data sheets SDS , as they currently are not considered a hazardous substance. PFAS may not be listed under any active ingredients list, either. The best thing to do is to note the brand and manufacturer of the foam and contact the manufacturer in writing to see if PFAS is used in its production and ask for the SDS. This is our first clue that the product may contain PFAS. Further, note the below statement does not mean it does not contain PFAS.

Also, be aware that performance and testing of the fluorine-free AFFF is still going on. Below are the current findings. From the review of firefighting foam performance standards, current and upcoming regulations, identification of fluorine-free foams, other researchers working in this area, and literature, the following conclusions and actions have been identified:.

To find out which fire stations in Michigan currently have or have had Class B foam, and therefore the potential to use or have used foam containing PFAS, the Fire Marshal conducted a survey of all Michigan fire stations in A total of 1, fire departments received the survey in March The survey is closed as of October 1, The key questions the survey asked were:.

The total amount of Class B foam reported was 40, gallons. The survey results were used to develop a statewide solution for collecting and disposing of most of the Class B foam so it no longer poses a threat to the environment.

Not all Class B foam will be collected and disposed because:. The collection and disposal efforts officially started on December 12, , with a kick-off press conference and an initial pick-up at the Lansing Fire Department.

Read the January 3, collection and disposal letter. This is a recording of a webinar held to discuss the AFFF pickup and disposal program and how communities could participate in the program. The webinar was intended for municipal and regional government officials, wastewater managers and directors, landfill owners and operators; operations and maintenance personnel, scientists, product and service providers; project managers and engineers, environmental consultants, water advocacy organizations, environmental and community groups, and anyone interested in PFAS impacts in the Great Lakes region.

Callers to the toll-free PEAS line are asked if Class B foam was used at the fire or explosion or spill to determine if response actions are needed. Browsers that can not handle javascript will not be able to access some features of this site. Some functions of this site are disabled for browsers blocking jQuery.

Department of Environment, Great Lakes, and Energy. Close Search Box. Official Website of Michigan.

Unit of competency details

Although vehicle fires are a common response for any department, they can be more challenging for rural departments where longer response times and distant water sources are common. In those situations, Class A foam can be an extremely helpful fire attack option. An aspirating nozzle is a low-energy system that adds air to the foam solution at the nozzle and creates bubbles as the mixture agitates through a screen. Aspirating nozzles can create a larger volume of bubbles at a lower pressure with a shorter stream reach.

Class A And B: What You Need To Know About Foam

Add the tank size with the desired percentage of product to get amount of concentrate required. This calculator may be used using standard or metric calculations. The foam agent is formulated to prevent additional environmental hazards when applied to a fire. FireAde Class A will not clog, gum, or corrode foam systems and equipment. This concentrate implements a dramatically changed chemistry compared to most Class A foams. It is recommended to flush all Class A foam tanks if possible. Mixing with most Class A foams will not cause harm to systems. Brochure Product Guide.

Class A Foam Concentrates

There are many integral fire truck systems that provide lifesaving resources and tools at the scene of an emergency. Fire-fighting foam systems are one such system, designed to improve the fire-extinguishing capabilities of water, enhancing on-scene efficiencies and promoting water use reduction. Despite the growing use among departments globally, there is some confusion as to what foam systems can offer, when to use foam systems and the types of foam required for varying emergency response needs. Continue reading below to learn more about the use of foam systems and the types of foam systems that directly support fire department operations. Today, Firefighters are faced with an increasing number of flammable liquid and hazardous vapor risks.

Firefighting foam

This article is intended to be only an introduction into foam concentrates to aid the buyer in acquiring the correct foam for their needs. For a look at the foam we stock and the associated application equipment, click here. To properly understand foam basics some definitions are in order:. FOAM: A fire fighting foam is simply a stable mass of small air-filled bubbles, which have a lower density than oil, gasoline or water. Foam is made up of three ingredients - water, foam concentrate and air. When mixed in the correct proportions, these three ingredients form a homogeneous foam blanket.

Phos-Chek WD881 Class A Foam – 5 Gallon Pail

Class A Foam Concentrates Class A foam concentrates are specifically designed to combat fires involving ordinary combustible materials, like wood, paper, coal, rubber, and plastic by making water more effective. The concentrates reduce the surface tension of water providing superior wetting and penetrating characteristics. This allows the solution to penetrate deep into the char of deep seated fires, promoting cooling and making the Class A fuel less combustible. The expanded foam solutions also create a dense foam blanket that provides an insulating barrier between the fuel and the air. In addition, foams make water five times more effective on Class A fires and cling to vertical surfaces, providing structure protection.

TP Version. This unit covers the competency required to use Class A foam to extinguish Class A carbonaceous solid fires in wildfire operations, secure against ignition or extinguish Class B shallow hydrocarbon fuel spills, and to operate and maintain the foam equipment required for its production. Class A foam is a liquid foam solution used mostly to extinguish fires in ordinary combustible solids such as wood, fabric, paper or organic material.

Buckeye Platinum Class A is an Earth Friendly non-corrosive, non-toxic, biodegradable foam concentrate used primarily for Class A combustibles. When mixed with water in the correct proportion, it changes two properties of the water. It reduces the surface tension of the water, and produces foam which allows the water to cling to vertical or horizontal surfaces without run off. This allows the water to absorb more heat and provides greater penetration into Class A fuels. Buckeye Class A Platinum foam concentrate is also suitable for use with most conventional foam proportioning equipment, including:. Technical Information.

With recent attention focused on firefighting foam contaminating groundwater, here's a closer look at the foam, the risks and the preventions. However, not all firefighting foams are classified as AFFF. In May , the 3M Company said it would no longer produce PFOS perfluorooctanesulphonate-based flurosurfactants using the electrochemical flouorination process. During the last few years, the firefighting foam industry has moved away from PFOS and its derivatives as a result of legislative pressure. Those manufacturers have developed and brought to market firefighting foams that do not use fluorochemicals, that is, that are fluorine-free. Manufacturers of fluorine-free foams say these foams have less impact on the environment and meet international approvals for firefighting requirements and end-user expectations.

AFFF is usually created by combining foaming agents with fluorinated surfactants. Per- and polyfluoroalkyl substances PFAS are the active ingredient in these fluorinated surfactants. When mixed with water and discharged, the foam forms an aqueous film that quickly cuts off the oxygen to a flame, extinguishes the fire, and stops the fire from relighting. It may not be easy to tell if the foam you have contains PFAS.