Which UN Hazard Class includes substances that are flammable liquids?

UN Hazard Class 3 is specifically designated for flammable liquids. This classification includes a variety of substances that pose a significant fire risk due to their ability to ignite easily and sustain combustion. Many everyday materials, such as gasoline, acetone, and alcohol, fall under this category.

Flammable liquids are characterized by their flash points, which are generally below 60 degrees Celsius (140 degrees Fahrenheit). This property plays a crucial role in risk assessment and emergency response planning, as it helps determine the necessary precautions when handling or storing these substances. The focus on flammable liquids in Class 3 highlights the importance of awareness and safety measures required to manage hazards associated with such materials effectively.

The other classes mentioned relate to different types of hazardous materials. For instance, Class 2 pertains to gases, Class 4 involves flammable solids, and Class 8 is for corrosive substances. Understanding the distinctions among these classes is vital for first responders and fire service personnel in ensuring appropriate handling and response strategies.