Which class covers Toxic Substances that are liable to cause harm through ingestion, inhalation, or skin contact?

• A. Class 5
• B. Class 6
• C. Class 8
• D. Class 3

Answer: (B)

Toxicity through exposure is categorized under Class 6 in the IATA Dangerous Goods Regulations. This class covers substances that can cause harm if they are inhaled, ingested, or absorbed through the skin, focusing on the systemic toxicity they pose rather than other hazards. The 6.1 subset specifically includes toxic substances with acute or chronic toxicity risks. That’s why materials like certain pesticides or highly toxic chemicals fall here. The other options represent different hazard types: flammable liquids (Class 3), oxidizing substances and organic peroxides (Class 5), and corrosives (Class 8). While those materials can be hazardous, their primary danger isn’t toxicity from ingestion, inhalation, or skin contact, which is the hallmark of Class 6.