Fire Extinguishers come in various sizes depending upon the quantity of the fire suppressant material inside .

ABC Powder Fire Extinguishers in the sizes –

2Kg , 4 Kg , 6 Kg , 9 Kg ,

CO2 Fire Extinguishers-

2 Kg , 4 Kg .

Automatic Modular Fire Extinguishers –

5 Kg , 10 Kg

Clean Agent ( Halon ) Fire Extinguishers –

500 Gms , 1 Kg , 2 Kg , 4 Kg , 6 Kg , 9 Kg .

Water Mist Fire Extinguishers –

2 Ltr , 3 Ltr ,6 Ltr

Water Based Fire Extinguisher-

2Ltr, 3 Ltr , 6 Ltr, 9 Ltr .

Foam Based Fire Extinguisher-

2 Ltr , 4 Ltr , 6 Ltr , 9 Ltr

 

 

 

What do the numbers in the alpha numeric classification mean (ie. 1A:10B:C)?

There is a number rating.  For Type A fires, a 1 would have the equivalent of 1¼ gallons of water, a 2 would be equivalent to 2½ gallons, 3 would be 3¾ gallons of water, and so forth.  For Type B and Type C fires, the number represents the square footage that the extinguishing agent would cover. For example, a number 2 would cover two square feet and a 5 would extinguish an area five square feet and so forth.

 

Why do some fire extinguishers have more than one letter and number?

The reason is because they can be made to put out more than one type of fire.  If the label reads 2A:5B, then it  would work on Type A fires with a 2½ gallon equivalence and for Type B fires with a 5 square feet equivalency.