Hazard Class 6 - Division 6.1

Toxicity is represented by LD₅₀, which is an abbreviation for median lethal dose.

The LD₅₀ for acute oral toxicity is the statistically derived single dose of a substance that can be expected to kill 50% of test subjects (adult albino rats) within 14 days. A material is considered orally toxic if it has an LD₅₀ of not more than 300 mg/kg.

The LD₅₀ for acute dermal toxicity is the dose of the substance that, when applied to the bare skin of an albino rabbit continuously for 24 hours, will likely cause death in half of the test subjects. A material is deemed to have dermal toxicity if it has an LD₅₀ of not more than 1,000 mg/kg.

Inhalation toxicity is represented in LC₅₀, which refers to the lethal concentration of a substance in air. The LC₅₀ for acute inhalation toxicity is the concentration of dust, mist, or vapor which, when inhaled continuously for one hour by adult albino rats, will most likely cause death within 14 days in half of the test population. A material that has inhalation toxicity is dust or mist with an LC₅₀ of not more than 4mg/L or is a saturated vapor with an LC₅₀ of not more than 5,000 mL/m³.

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