Division 6.1 pertains to hazards related to what characteristic?

• A. Toxicity
• B. Flammability
• C. Radioactivity
• D. Reactivity

Answer: (A)

Division 6.1 focuses on toxicity — substances that can cause harm to human health if they are inhaled, swallowed, or absorbed. The key idea is health risk to people, not how flammable a substance is, whether it emits radiation, or how it might react violently with other substances. Toxic materials require careful handling, labeling, and protective measures because even small exposures can lead to adverse health effects. The other hazard characteristics mentioned belong to different divisions: flammability relates to ignition risk, radioactivity to radioactive materials, and reactivity to how a substance may react violently with other substances or release energy. So Division 6.1 is specifically about toxicity.