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AUG 29 '90 09:53 M.H.Lou. � F'. 1 t,21 Mage 12 soli e Gasoline is a clear to yellowish or reddish aromatic liquid. it is a volatile mixture of aromatic and aliphatic hydrocarbons. Leaded gasoline contains TEL (see above) . Gasoline vapors are moderately poisonous and contain hazardous aromatic compounds including benzene, xylenes and toluene. Benzene is a recognized leukemogen with a PETS of 10 parts per million in air (ppm) . Aramati.c compounds exist in gasoline as contaminants of the refining process and as horsepower additives. Prinary routes of exposure include inhalation and ingestion. Gasoline is a skin irritant and can cause contact dermatitis. Inhalation or ingestion can cause central nervous system depression. Gasoline is a flammable liquid, and both liquid and vapor phases should be protected f'ro�m sources of ignition. Gasoline is incompatible with, oxidizing agents. Gasoline has an ACGIH TLV-TWA of 300 ppm or 890 mg/m3 . Gasoline has an- ACGIH Short Term Exposure Limit (STEL-TWA) of 500 ppm or 1480 mg/m3 . STELs are 15-minute TWA values which should not be exceeded under any circumstances, Should not occur more than four times per day, and are in addition to the eight--hour TWA values. Gasoline vapors in high concentration can displace ambient air causing Oxygen-deficient conditions. 15=21w: Benzene is a colorless liquid with an aromatic odor. It has a melting point of 42 F and a boiling point of 176 F. Benzene's UEL is 7 . 11; the LEL is 1. 3%. Benzene has a flash paint of 12 F. It is incompatible with strong oxidizers, chlorine, and bromine with iron. Benzene has an ACGIH TLV of 10 ppm or 32 Mg/m3 with a ceiling concentration of 25 ppm for 10 minutes. NIOSH has not listed an IDLH level for benzene; it has recommended it be treated as a carcinogen. Benzene is a leukemogen and a suspected carcinogen. Symptoms of over-exposure include irritation of the eyes, nose and respiratory system, giddiness, headache, nausea, staggered gait, anorexia, lassitude, dermatitis and skin lesions, bone marrow depression, and abdominal pain. Contact exposure to benzene can result in systemic poisoning after absorption into the bloodstream. Toluene Toluene is a colorless liquid with an aromatic odor. It has a melting point of x^139 F and a boiling point of 231. F. Toluene's UEL is 7 .1%, the LEL is 1.3% . Toluene has a flash point of 40 F. It is incompatible with strong oxidizers. Toluene has an ACGIH TL's of 1.00 ppm or 377 mg/m3 with a ceiling concentration of 1.50 ppm or 565 lag/10. Toluene has an IDLH level of 2000 ppm. Symptoms of over-exposure include fatigue, weakness, confusion, euphoria, headache, dilated pupils, lacrimation, nervousness, Tauscular fatigue, insomnia, paresthesia., dermatitis and photophobia.