For example, a 5 pound ABC extinguisher will say on the label, “Fill with 5 pounds of ABC chemical . . . gross weight of 8 lbs. 5oz. ± 8 oz.” If you weigh this fire extinguisher, it should ...

The ABCs of Inspecting Dry Chemical Fire Extinguishers. An improperly maintained or under-weight extinguisher can seriously endanger life and property. By Don Frank; Apr 01, 2008; ...