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TABLE 1 <br /> C I <br /> CHEMICAL HAZARD LEVELS <br /> GASOLINE PRODUCTS <br /> COMPONENTS : TWA STEL IDLH <br /> CBenzene 0 . 1 ppm 1 ppm S u s p e c t e d <br /> Carcinogen <br /> ppm] <br /> r� <br /> ( m] <br /> (� Xylenes 100 ppm 150 ppm 2000 ppm <br /> fi Toluene 100 ppm 150 ppm 2000 ppm <br /> I <br /> r Ethylbenzene 100 ppm 125 ppm 1000 ppm <br /> L Tethraethyl Lead * 0 . 075img/m3 [Skin) 40 mg/m3 <br /> r n-Hexane 50 ppm 5000 ppm <br /> {� DIESEL FUEL: 100ppm - - <br /> Information shown above taken from the National Institute for <br /> Occupational Safety and Health (NIOSH) Guide to Chemical Hazards, <br /> June 1990, and Material Safety Data Sheets . <br /> l� * Milligrams per cubic meter (mg/m3 ) of vapor in air. <br /> 1� TWA: Time weighted average concentrations that must not <br /> rl be exceeded during any 8-hour work shift of a 40 <br /> �.. hour work week. Exposure limit for total gasoline <br /> products is 100 ppm (TWA) . <br /> L: STEL: Short-term exposure limit is a 15 minute TWA <br /> exposure that should not be exceeded at any time <br /> during a workday . <br /> C <br /> IDLH: Immediately dangerous to life or health <br /> concentrations represent the maximum concentration <br /> ' from which, in the event of respirator failure, one <br /> could escape within 10 minutes without a respirator <br /> and without experiencing any escape-impairing (e.g. <br /> severe eye irritation) or irreversible health <br /> effects . <br /> _ [SKIN] This designation indicates the potential for dermal <br /> absorption; skin exposure should be prevented as <br /> necessary '' through the use of good work practices <br /> and gloves, coveralls, goggles , and other <br /> appropriate equipment . <br /> LJ <br />