What does a container labeled with a Hazard Class 4 represent in the UN System?

• A. Flammable gas
• B. Flammable liquid
• C. Flammable solid
• D. Corrosive substance

Answer: (C)

A container labeled with a Hazard Class 4 in the UN System represents a flammable solid. This classification is critical because it identifies materials that can ignite and burn easily in the presence of an ignition source, posing significant risks during storage and transport. Flammable solids can include substances that are inherently solid at room temperature but can ignite when exposed to air or heat.

Understanding Hazard Class 4 is essential for those involved in the handling, storage, and transportation of hazardous materials, as it entails specific safety measures to mitigate risks associated with flammability. Proper labeling and adherence to guidelines help ensure safety for personnel and the environment.