Class 6 hazards include which of the following?

• A. Poisons, Poison Inhalation Hazard, and Infectious Substances
• B. Corrosives and Irritants
• C. Radioactive Materials
• D. Miscellaneous Hazardous Materials

Answer: (A)

The key idea is how hazardous materials are grouped into classes, and Class 6 specifically covers poisonous substances. This includes materials that are toxic to humans if swallowed, absorbed through the skin, or inhaled, as well as those that pose a toxic inhalation hazard (TIH). It also includes infectious substances that can spread disease. That combination—poisons, TIH, and infectious substances—is what defines Class 6.

Other hazard groups are different: corrosives and irritants are not in Class 6 (corrosives are Class 8, and irritants fall under other classifications or contexts); radioactive materials are Class 7; and miscellaneous hazardous materials are Class 9. So the set that falls under Class 6 is precisely poisons, TIH, and infectious substances.