Which DOT hazard class is corrosives (acid or base)?

Which DOT hazard class is corrosives (acid or base)?

• A. Class 3: Flammable liquids
• B. Class 8: Corrosives (acid or base)
• C. Class 6: Poison or toxic
• D. Class 9: Miscellaneous

Answer: (B)

Corrosives, including acids and bases, are designated as Class 8 in the DOT hazard classifications. This class covers materials that can cause severe chemical burns to skin and eyes and can corrode metals. That’s why the correct classification is Class 8—it directly matches the property of corrosivity. The other classes describe different hazards—flammable liquids (Class 3), poisonous or toxic substances (Class 6), and miscellaneous dangerous goods (Class 9)—but they aren’t defined by the corrosive property. Recognizing Class 8 helps you know the necessary labeling, packaging, and handling to prevent chemical burns and damage to materials.

Corrosives, including acids and bases, are designated as Class 8 in the DOT hazard classifications. This class covers materials that can cause severe chemical burns to skin and eyes and can corrode metals. That’s why the correct classification is Class 8—it directly matches the property of corrosivity. The other classes describe different hazards—flammable liquids (Class 3), poisonous or toxic substances (Class 6), and miscellaneous dangerous goods (Class 9)—but they aren’t defined by the corrosive property. Recognizing Class 8 helps you know the necessary labeling, packaging, and handling to prevent chemical burns and damage to materials.