Fire Emergency Tools

Disaster Survival, Fire & Evacuation, Emergency Response Tools: FIRE EMERGENCY EQUIPMENT - From Fire Document Bags to protect critical information, to our emergency folding fire evacuation / fire escape ladders - we offer Protective goggles, particle dust masks and even ABC & 5BC fire extinguishers and a fireman's axe. Get your Fire Evacuation Plan in place, and get the fire escape tools you need.

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What do the A B C ratings mean on Fire Extinguishers? (And what is a "5BC Fire Extinguisher?)


Garbage fire icon.

Fire extinguishers with a Class A rating are effective against fires involving paper, wood, textiles, and plastics. The primary chemical used to fight these fires is monoammonium phosphate, because of its ability to smother fires in these types of materials.


Gasoline fire icon.

Fire extinguishers with a Class B rating are effective against flammable liquid fires. These can be fires where cooking liquids, oil, gasoline, kerosene, or paint have become ignited. Two commonly used chemicals are effective in fighting these types of fires. Monoammonium phosphate effectively smothers the fire, while sodium bicarbonate induces a chemical reaction which extinguishes the fire.


Electrical fire icon.

Fire extinguishers with a Class C rating are suitable for fires in “live” electrical equipment. Both monoammonium phosphate and sodium bicarbonate are commonly used to fight this type of fire because of their nonconductive properties.

Fire Extinguisher Ratings

Fire extinguishers are classified by fire type. The A, B, C rating system defines the kinds of burning materials each fire extinguisher is designed to fight. The number in front of the A, B, or C indicates the rating size of fire the unit can extinguish.

To achieve a Class “A” rating, the extinguisher must be capable of putting out the wood crib, wood panel and excelsior (shredded paper) tests. Ratings are based on the size of the material that can be repeatedly extinguished.

Rating Wood Crib (inches) Wood Panel (Feet) Excelsior (lbs)
1-A 20 x 20 x 20 8 x 8 6
2-A 25 x 26 x 26 10 x 10 12
3-A 30 x 30 x 30 12 x 12 18
4-A 33 x 30 x 30 14 x 14 24
6-A 38x 38 x 38 17 x 17 36
10-A 48 x 48 x 48 17 x 17 36

To achieve a class “B” rating, the extinguisher must repeatedly put out a flaming liquid fire. Ratings are based on the size of the fire.

Rating Pan Size (sq ft) Gallons of Heptane
1-B 2.5 3.25
2-B 5.0 6.25
5-B 12.5 15.5
10-B 25.0 31.0
20-B 50.0 65.0
30-B 75.0 95.0
40-B 100.0 125.0

To achieve the Class “C” rating the extinguisher and contents must pass certain electrical conductivity measurements in accordance with UL711 and UL299.

What is a 5BC Fire Extinguisher?

A 5BC extinguisher puts out B- and C-class fires.As shown above, B-class fires involve flammable liquids such as gasoline or grease. C-class fires involve electrical equipment. The "5" indicates, approximately, how many square feet of fire the extinguisher can put out.

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