Hazard Class 4 is associated with which type of material?

Hazard Class 4 is associated with which type of material?

• A. Gases
• B. Corrosives
• C. Flammable solids
• D. Toxic and infectious substances

Answer: (C)

This question tests your knowledge of hazardous materials classification, specifically what Hazard Class 4 covers. Class 4 refers to Flammable Solids—solids that ignite readily or can become flammable through friction, heat, or moisture, and in some cases may release flammable gases when in contact with water. That makes the option describing Flammable Solids the best match. Other hazard classes include gases (handled under a different class), corrosives, and toxic and infectious substances, which have different risk profiles and handling requirements. Examples of flammable solids include items like matches, certain metal powders, napthalene, and phosphorus, which illustrate how a solid material can pose a flammability risk.

This question tests your knowledge of hazardous materials classification, specifically what Hazard Class 4 covers. Class 4 refers to Flammable Solids—solids that ignite readily or can become flammable through friction, heat, or moisture, and in some cases may release flammable gases when in contact with water. That makes the option describing Flammable Solids the best match. Other hazard classes include gases (handled under a different class), corrosives, and toxic and infectious substances, which have different risk profiles and handling requirements. Examples of flammable solids include items like matches, certain metal powders, napthalene, and phosphorus, which illustrate how a solid material can pose a flammability risk.