Which hazard class includes flammable solids?

Which hazard class includes flammable solids?

• A. Class 4 Flammable Solids
• B. Class 5 Organic Peroxides
• C. Class 7 Radioactive Materials
• D. Class 8 Corrosives

Answer: (A)

The main concept is matching the material’s fire behavior to its hazard class. Flammable solids are solids that can ignite readily through friction, heat, moisture, or contamination and can burn rapidly or cause explosions. In the hazard classification system, this risk sits in Class 4 – Flammable Solids. That’s why the option labeled as Class 4 Flammable Solids is the best choice. The other options point to different hazard classes: organic peroxides fall under Class 5 because they are oxidizers that can decompose violently; radioactive materials belong to Class 7 due to ionizing radiation risk; corrosives are Class 8 because they can destroy or damage living tissue and materials. So, for flammable solids, Class 4 is the correct category.

The main concept is matching the material’s fire behavior to its hazard class. Flammable solids are solids that can ignite readily through friction, heat, moisture, or contamination and can burn rapidly or cause explosions. In the hazard classification system, this risk sits in Class 4 – Flammable Solids. That’s why the option labeled as Class 4 Flammable Solids is the best choice.

The other options point to different hazard classes: organic peroxides fall under Class 5 because they are oxidizers that can decompose violently; radioactive materials belong to Class 7 due to ionizing radiation risk; corrosives are Class 8 because they can destroy or damage living tissue and materials. So, for flammable solids, Class 4 is the correct category.