Hazard Class 6 – Poisonous / Toxic Substances

Poisonous or Toxic Materials are materials, other than a gas, known to be so toxic to humans as to pose a health hazard during transportation, or which, in the absence of adequate human toxicity data:

• Is presumed to be toxic to humans because it is within one of the following when tested on lab animals:
  • Oral toxicity: a material with an LD50 of =300 mg/kg.
  • Dermal toxicity: a material with an LD50 of =1000 mg/kg
  • Inhalation toxicity: a dust or mist with an LC50 for acute toxicity on inhalation of =4.0 mg/L; or a material with a saturated vapor conc. in air at 20°C of more than 1/5 of the LC50 for acute toxicity on inhalation of vapors and with an LC50 for acute toxicity on inhalation of vapors of < 5000 mL/m3
• Is a material with properties similar to tear gas that causes extreme irritation, especially in confined spaces.

Toxins that are extracted from a living source like plant, animal, or bacteria are called biotoxins and could be considered toxic if the LD50 meets the criteria stated above.

Source: 49 CFR §173.132, 49 CFR §173.133

Examples

• Benzidine
• Brucine
• Acridine
• Arsenic
• Nicotine

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