Choking agents are classified under which UN/DOT hazard division?

Choking agents are classified under which UN/DOT hazard division?

• A. Division 2.1
• B. Division 3.2
• C. Division 2.3
• D. Division 6.1

Answer: (C)

Choking agents are gases whose main danger is toxicity from inhalation, not flammability or a solid form. In the UN/DOT system, gases are grouped in Division 2, with 2.3 reserved for toxic gases. Since choking agents cause severe harm or death through inhalation as gases, they are classified as Division 2.3. This differs from flammable gases (Division 2.1), non-flammable, non-toxic gases (Division 2.2), or toxic solids/liquids (Division 6.1). Examples of choking/toxic gases include chlorine and phosgene, which are hazardous primarily because they affect breathing when inhaled.

Choking agents are gases whose main danger is toxicity from inhalation, not flammability or a solid form. In the UN/DOT system, gases are grouped in Division 2, with 2.3 reserved for toxic gases. Since choking agents cause severe harm or death through inhalation as gases, they are classified as Division 2.3. This differs from flammable gases (Division 2.1), non-flammable, non-toxic gases (Division 2.2), or toxic solids/liquids (Division 6.1). Examples of choking/toxic gases include chlorine and phosgene, which are hazardous primarily because they affect breathing when inhaled.