Hazmat Firefighter Practice Test 2026 - Free Hazmat Exam Practice Questions and Study Guide

Class 3 hazardous materials are specifically categorized as flammable liquids. This classification includes a wide range of substances that can easily ignite and maintain combustion. These materials generally have a flash point of 60 degrees Celsius (140 degrees Fahrenheit) or lower, making them particularly hazardous in fire situations, as they can produce flammable vapors that may ignite if exposed to an ignition source.

Understanding this classification is crucial for hazmat firefighters, as it informs the necessary precautions and response strategies when dealing with flammable liquids. This includes recognizing the potential for rapid spread of fire, the importance of controlling ventilation to avoid vapor accumulation, and employing appropriate firefighting techniques to mitigate the risks associated with these materials.

In contrast, the other classifications mention corrosive substances, explosive materials, and toxic solids, which fall under different categories of hazardous materials with distinct characteristics and hazards.