Glossary

Toxicity classes

toxins are graded depending on their toxicity in accordance with Art. 4 of the German Toxins Act. The following scale is used to grade the acute oral lethal dose (DL50 value 1) for rats and other species of animals if no other restrictions need to be considered for toxicological reasons.

Lethal doses

Toxicity class 1 - 5 mg/kg

Toxicity class 2 5 - 50 mg/kg

Toxicity class 3 50 - 500 mg/kg

Toxicity class 4 500 - 2000 mg/kg

Toxicity class 5 2000 - 5000 mg/kg

Note: Lethal dose = mg toxin per kg body weight.

Examples for grading toxins:

Toxicity class 1: Benzene, potassium cyanide, vinyl chloride, hydrofluoric acid.

Toxicity class 2: Hydrochloric acid, caustic soda, org. Lead compounds,

Toxicity class 3: Methyl alcohol, sodium chloride, quantity of lead.

Toxicity class 4: Acetone, clean benzine, turpentine oil

Toxicity class 5: Alcohol, petrol, soda

Toxicity class 5 S: Car care products, stain remover

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