Irritants are assigned to which UN/DOT hazard division?

Irritants are assigned to which UN/DOT hazard division?

• A. Division 6.1
• B. Division 2.2
• C. Division 2.3
• D. Division 2.1

Answer: (A)

Irritants are classified under the toxic substances division. In the UN/DOT system, Class 6 covers toxic and infectious substances, and Division 6.1 specifically refers to toxic substances that can cause harmful effects, including irritation to the eyes, skin, or respiratory tract. Because irritants produce acute toxic effects rather than being a gaseous hazard, they fit with Division 6.1 rather than the gas divisions. The other options are all gas hazards (Division 2.1 for flammable gases, Division 2.2 for nonflammable/nonpoisonous gases, Division 2.3 for toxic gases), which irritants do not represent. So Division 6.1 is the correct category.

Irritants are classified under the toxic substances division. In the UN/DOT system, Class 6 covers toxic and infectious substances, and Division 6.1 specifically refers to toxic substances that can cause harmful effects, including irritation to the eyes, skin, or respiratory tract. Because irritants produce acute toxic effects rather than being a gaseous hazard, they fit with Division 6.1 rather than the gas divisions.

The other options are all gas hazards (Division 2.1 for flammable gases, Division 2.2 for nonflammable/nonpoisonous gases, Division 2.3 for toxic gases), which irritants do not represent. So Division 6.1 is the correct category.