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yyyy <br /> Mn <br /> K. Dermal Toxicity data is summarized in the following three <br /> categories: <br /> Skin penetration <br /> A - negligible penetration (solid-polar) <br /> B - slight penetration (solid-nonpolar) <br /> C - moderate penetration(liquid-nonpolar) <br /> D - high penetration (gas/liquid-nonpolar.) <br /> systemic Potency <br /> E - slight hazard - LD50 = 500-15,000 mg/kg <br /> lethal dose for 70 kg man = 1 pint-1 quart <br /> F - moderate hazard - LD50 = 50-500 mg/kg <br /> lethal dose for 70 kg man = 1 ounce-1 pint i <br /> G - extreme hazard LD50 W 10-50 mg/kg j <br /> lethal dose for 70 kg man - drops to 20 ml <br /> Local Potency <br /> 5 <br /> H - slight. - reddening of skin i <br /> I -- moderate - irritation/inflammation of skin <br /> J - extreme - tissue destruction/necrosis <br /> } <br /> L. Acute Exposure Symptoms <br /> A - abdominal pain <br /> B - central nervous system depression <br /> C - comatose <br /> D - convulsions <br /> E - confusion <br /> F - dizziness <br /> car - diarrhea <br /> H - drowsiness <br /> I eye irritation <br /> J - fever <br /> K - headache <br /> L - nausea <br /> M - respiratory system irritation j <br /> N - skin irritation <br /> o - tremors <br /> P - unconsciousness <br /> Q - vomiting <br /> R - weakness <br />