What shape represents Class D combustible metals?

Class D combustible metals, which include materials like magnesium, titanium, and sodium, are represented by a star shape on fire hazard labels. This designation is important because Class D fires behave differently from other classes of fires due to the unique characteristics of combustible metals. They require specific extinguishing agents, as common agents such as water can exacerbate the fire.

The star shape serves not only as a symbol but also communicates the special caution needed when dealing with these types of fire hazards. Understanding this classification helps ensure safety protocols are correctly followed when handling or responding to incidents involving combustible metals.