Toxic 12
Toxic 12 : Having (a) an LD50 of 50-500 mg/kg when administered orally to albino rats weighing 200-300 grams each, (b) an LD50 of 200-1000 mg/kg when administered by continuous contact for 24 hours with the bare skin of albino rabbits weighing 2-3 kilograms each, or (c) an LC50 of 200-2000 ppm (gas or vapor) or 2-20 mg/1 (mist, fume or dust) when administered by continuous inhalation for one hour to albino rats weighing 200-300 grams each
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