Which division includes toxic gases that can be corrosive to people, such as chlorine and cyanide?

• A. Division 2.3
• B. Division 2.1
• C. Division 2.2
• D. Division 3.0

Answer: (A)

When a hazard is primarily toxic to people, the gas is placed in the toxic gas division. Gases in this division are dangerous because inhalation can be lethal and some can be corrosive to body tissues, which fits gases like chlorine and cyanide. The other divisions cover different gas hazards: one is for flammable gases, another for non-flammable, non-toxic gases, and there are divisions that deal with hazards outside the gas category. So, for a question focusing on toxic, potentially corrosive gases, the correct choice is the toxic gas division.