Which Class includes Flammable Liquids?

Which Class includes Flammable Liquids?

• A. Class 2
• B. Class 3
• C. Class 4
• D. Class 5

Answer: (B)

In hazardous materials labeling, each class groups materials by how they burn or react. Flammable liquids are placed in Class 3 because they are liquids that can ignite at relatively low temperatures, meaning they have a flash point that makes them fire hazards. Examples include gasoline, acetone, and ethanol. Other classes cover different hazards: Class 2 is for gases, Class 4 is for flammable solids, and Class 5 covers oxidizers that help materials burn but are not themselves liquids. So, the class that includes flammable liquids is Class 3.

In hazardous materials labeling, each class groups materials by how they burn or react. Flammable liquids are placed in Class 3 because they are liquids that can ignite at relatively low temperatures, meaning they have a flash point that makes them fire hazards. Examples include gasoline, acetone, and ethanol. Other classes cover different hazards: Class 2 is for gases, Class 4 is for flammable solids, and Class 5 covers oxidizers that help materials burn but are not themselves liquids. So, the class that includes flammable liquids is Class 3.