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718 Fire Prevention Plans
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More on Extinguisher Labeling

Reference the UL label in the image. The extinguisher classification is:

2-A:10-B:C
This label identifies the extinguisher as a Class ABC capable of extinguishing a fire occupying an area of 10 square feet.

The letters (A, B, and C) represent the type(s) of fire for which the extinguisher has been approved.

The number in front of the A rating indicates how much water the extinguisher is equal to and represents 1.25 gallons of water for every unit of one. For example, a 2-A rated extinguisher would be equal to 2.5 (2 x 1.25) gallons of water.

The number in front of the B rating represents the area in square feet of a class B fire that a non-expert user should be able to extinguish. Using the above example, a non-expert user should be able to put out a fire that is as large as 10 square feet.

Knowledge Check Choose the best answer for the question.

5-6. How many square feet is a 1-A:10-BC fire extinguisher capable of extinguishing?