Changes

* Class B: flammable liquids, such as grease, oil, and gasoline.  

* Class B: flammable liquids, such as grease, oil, and gasoline.  

* Class C: electrical fires.  

* Class C: electrical fires.  

* Class D: flammable metals (such as [[titanium]] or [[magnesium]].

* Class D: flammable metals, such as [[titanium]] or [[magnesium]].

The steps in correct use of a fire extinguisher can be remembered by the acronym P.A.S.S.: Pull, Aim, Squeeze, Sweep.

The steps in correct use of a fire extinguisher can be remembered by the acronym P.A.S.S.: Pull, Aim, Squeeze, Sweep.