What is the correct fire suppression agent for a fire involving a combustible metal?

The appropriate fire suppression agent for a fire involving combustible metals is indicated by the yellow star with a D in the middle. This symbol represents a Class D fire extinguisher, which is specifically designed for situations involving combustible metals such as magnesium, titanium, and sodium.

Class D extinguishers utilize agents that can effectively smother and control fires fueled by these materials, which cannot be subdued by water or other common extinguishing agents. Using an inappropriate extinguisher, such as those designed for normal combustibles or flammable liquids, could exacerbate the situation and lead to hazardous reactions or even explosions.

In summary, the presence of the yellow star with a D signifies the correct extinguisher type for extinguishing combustible metal fires, ensuring safety and effectiveness in handling these specialized fire hazards.