Hazard Class 5 is associated with which type of material?

Hazard Class 5 is associated with which type of material?

• A. Flammable solids
• B. Corrosives
• C. Oxidizers and organic peroxide
• D. Toxic and infectious substances

Answer: (C)

Hazard Class 5 covers substances that are oxidizers or organic peroxides. These materials don’t burn on their own but can greatly accelerate combustion in other materials, or they can decompose violently and release heat and gas. That’s why oxidizers (Class 5.1) and organic peroxides (Class 5.2) are grouped together. The other options refer to different hazard classes: flammable solids belong to Class 4, corrosives to Class 8, and toxic and infectious substances to Class 6. So the type described by Hazard Class 5 is oxidizers and organic peroxides.

Hazard Class 5 covers substances that are oxidizers or organic peroxides. These materials don’t burn on their own but can greatly accelerate combustion in other materials, or they can decompose violently and release heat and gas. That’s why oxidizers (Class 5.1) and organic peroxides (Class 5.2) are grouped together. The other options refer to different hazard classes: flammable solids belong to Class 4, corrosives to Class 8, and toxic and infectious substances to Class 6. So the type described by Hazard Class 5 is oxidizers and organic peroxides.