Fire Extinguishers

B-I and B-II refer to the relative fire extinguishing capacity of approved USCG fire extinguishers, depending upon the type of extinguishing agent used.

Class B fires involve flammable or combustible liquids such as gasoline, kerosene, grease and oil.

The numerical rating BEFORE the letter B, for class B extinguishers, indicates the approximate number of square feet of fire it can extinguish (i.e., with no significant depth).

The numerical rating (I, II, III) AFTER the letter B indicates Coast Guard classification. For example, a UL 5-B:C, rated for 5 sq ft of liquid fire, would be a USCG B-I extinguisher (with 2 pounds of dry chemical).

To obtain a USCG B-II rating you would need the equivalent of 10 pounds of dry chemical, such as having two UL 3-A, 40-B:C extinguishers, or a 15-pound CO2 extinguisher, or 2 1/2 gallons of AFFF "foam" (UL 3-A:20B).

A 20-pound dry-chemical (120-B:C) would meet USCG B-III requirements.

USCG ratings go as high as V, which is a big extinguisher on wheels.

Fire extinguishers have exoskeletons? Usually they're called canisters, cylinders or whatever. The thickness is determined by how big it is, because the larger it is the more pressure it must hold in. A really small extinguisher has metal about as thick as a soup can. A huge extinguisher can have 5mm thick walls.

B-number ratings are used by the US Coast Guard regulations to identify the necessary capacity of a fire extinguisher, depending upon the type of extinguishing agent used. Only extinguishers meet all USCG requirements can say "USCG approved".

Class B fires involve flammable or combustible liquids such as gasoline, kerosene, grease and oil.

The numerical rating BEFORE the letter B, for UL ratings of class B extinguishers, indicates the approximate number of square feet of fire it can extinguish (i.e., with no significant depth).

The numerical rating (I, II, III, IV, V) AFTER the letter B indicates Coast Guard classification. For example, a UL 5-B:C, rated for 5 sq ft of flammable liquid fire, would be a USCG B-I extinguisher (with 2 pounds of dry chemical).

To obtain a USCG B-II rating you would need the equivalent of 10 pounds of dry chemical, such as having two UL 3-A, 40-B:C extinguishers, or a 15-pound CO2 extinguisher, or 2 1/2 gallons of AFFF "foam" (UL 3-A:20B).

A 20-pound dry-chemical (120-B:C) would meet USCG B-III requirements, 30 pounds for B-IV and 50 pounds for B-V. Similarly, carbon-dioxide or foam-type extinguishers of various capacities fall within USCG ratings (e.g. 4 pounds CO2 for B-I, 15 pounds for B-II, etc).

Pull pin

Aim

Squeeze trigger

Sweep base of fire

NFPA 10: Standard for Portable Fire Extinguishers

Fires involving live electrical equipment.

Acid can corrode the metal shell of the extinguisher. When it is rapidly pressurized, it may explode. They are no longer an approved extinguisher in many nations.

A FM200 gas is a solvent condensed gas and is without any hue. The gas is typically stored as a fluid and distributed into a hazard box. The solution is used for fire application protection, which is found in a fire extinguisher.

A fire extinguisher does no make dry ice. Dry Ice is the solid form of the gas Carbon Dioxide. At room temperature is you compress (and cool) CO", it turns into solid CO2 (dry ice) without forming a liquid phase.

Fire point is that point where fire extinguisher and fire buckets will be easily available in case of emergency's can be use immediately.

A quick Google search for Fire Extinguisher Training turns up a ton of results. Finding computer-based (CBT) courses is a little trickier. I personally think Convergence Training makes nice computer-based training modules. Here's their Fire Extinguisher course:

http://www.convergencetraining.com/fire-extinguisher-safety.html

office equipment

In MOST burning liquids, the water will sink, creating an explosion of steam as it become super-heated, causing the fire to spread rapidly.

Some aqueous film-forming fire extinguishers generate a foam that floats on the surface, smothering the fire.

Check it on images. Hope this help you!

All extinguishers should be professionally inspected annually. Call your local fire department business number for advise on finding a reputable local inspector.

Refilling or recharging should be done by, and on the advice of, a professional.

just roll them into the fire and they'll be fine;)

It does not.

Technical input: compressed CO2 might be in liquid form INSIDE the fire extinguisher because it is under more than about 5 atmospheres of pressure.

Hopefully you understand our reluctance to endorse any particular brand on this site. Your local fire department can probably inform you of several stores in your area where you might buy a fire extinguisher, or you could try looking in the phone book, or you could just go to a school or hospital and ask them where they got theirs.

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The question I've got is, what needs do you have? If you just want a fire extinguisher to keep in the kitchen in case of a grease fire, or in the garage, hardware stores and discount stores like Walmart and Target sell good fire extinguishers. If you are putting it in a commercial building where you need the unit serviced on a regular basis, check the "fire extinguisher" listing in the phone book.

ABC which handles flammable items that would burn leaving an ash, like wood and paper, Liquid fires, and electrical.

All military vehicles are required to have a fire extinguisher.

AFFF is Aqueous Film Forming Foam

Put simply, fire requires three things to burn: a fuel, heat and oxygen. The fuel is whatever the fire is burning, and this may be something like wood, gasoline, paper, bedsheets, yeah you get the point. It creates its own heat, so that leaves one more: oxygen.

Oxygen is present in the atmosphere, the atmosphere is all around the fire. Oxygen is also a relatively light compared to carbon dioxide, because oxygen is O2 and carbon dioxide has an extra carbon atom in the molecule, CO2. When you release a lot of carbon dioxide, it instantaneously displaces the O2 in the atmosphere, because less dense objects like oxygen will rise. With no oxygen around, the fire extinguishes.

Plywood is a type of engineered wood made from thin sheets of wood veneer, called plies or veneers. The layers are glued together, each with its grain at right angles to adjacent layers for greater strength.Plywood is a type of engineered wood made from thin sheets of wood veneer, called plies or veneers. The layers are glued together, each with its grain at right angles to adjacent layers for greater strength.Plywood is a type of engineered wood made from thin sheets of wood veneer, called plies or veneers. The layers are glued together,

Baked Alaska