Which class includes radioactive materials?

Which class includes radioactive materials?

• A. Class 7
• B. Class 4
• C. Class 5
• D. Class 8

Answer: (A)

Radioactive materials require a separate hazard category because their primary danger is ionizing radiation, not flammability, corrosion, or reactivity. This distinct hazard is addressed by a dedicated class that covers all radioactive materials and related radiation devices, with specific packaging, labeling, and handling rules to protect people and the environment from exposure and contamination. That dedicated class is the one assigned to radioactive materials, reflecting the unique safety measures needed for this type of hazard. The other classes correspond to different dangers: one covers materials that readily ignite or sustain combustion as flammable solids; another covers substances that are oxidizers or organic peroxides, which can intensify fires or pose explosive risks; and the last covers materials that can corrode or destroy living tissue and many metals.

Radioactive materials require a separate hazard category because their primary danger is ionizing radiation, not flammability, corrosion, or reactivity. This distinct hazard is addressed by a dedicated class that covers all radioactive materials and related radiation devices, with specific packaging, labeling, and handling rules to protect people and the environment from exposure and contamination. That dedicated class is the one assigned to radioactive materials, reflecting the unique safety measures needed for this type of hazard.

The other classes correspond to different dangers: one covers materials that readily ignite or sustain combustion as flammable solids; another covers substances that are oxidizers or organic peroxides, which can intensify fires or pose explosive risks; and the last covers materials that can corrode or destroy living tissue and many metals.