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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, OOO .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 <br /> G - extreme hazard - LD50 = 10-50 mg/kg <br /> it <br /> lethal dose for 70 kg man = drops to 20 ml <br /> Local Potency <br /> H - slight - reddening of skin <br /> I - moderate - irritation/inflammation of skin <br /> J - extreme - tissue destruction/necrosis <br /> 1. 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 /> G - diarrhea <br /> H - drowsiness <br /> I - eye irritation <br /> J - fever <br /> K - headache <br /> L - nausea <br /> M - respiratory system irritation <br /> N - skin irritation <br /> 0 - tremors <br /> P - unconsciousness <br /> Q - vomiting <br /> R - weakness <br /> i <br /> I <br /> I <br />