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+ woe <br /> EXPOSURE LIMITS AND WARNINGS <br /> Detectable amounts or benzene and some other chemicals known to <br /> the State of California to cause cancer, birth defects, or other <br /> reproductive harm (as identified under California Proposition 65) <br /> may be found in and around the facilities where an SVCA is <br /> conducted. Adherence to, the safety and health procedures <br /> addressed here and standard practices are required and should <br /> minimize the potential for exposure to these chemicals . <br /> The American Conference of Governmental Industrial Hygienists <br /> (ACGIH) established a Threshold Limit Value (TLV) for gasoline of <br /> 300 ppm. (A TLV 'a time-weighted average concentration for a <br /> normal 8-hour workday and a 40-hour workweek, to which nearly all <br /> workers may be exposed to day after day without adverse effects. ) <br /> Further, ACGIH recommends that an airborne concentration of 500 <br /> ppm gasoline not be exceeded for even short periods of time (i .e. <br /> 15 minutes) . Exxon Company, USA established a recommended TLV <br /> for both gasoline and diesel at 100 ppm. The U.S. Occupational <br /> Safety and Health Agency (OSHA) has not established a <br /> Permissible Exposure Limit (PEL) for either gasoline or other <br /> petroleum fuels . <br /> OSHA set the PEL for benzene at 1 ppm, however gasoline stations <br /> have been exempted from this requirement. Other PELs applicable <br /> are: 200 ppm toluene; 100 ppm xylenes; 100 ppm ethylbenzene; and <br /> 500 ppm hexane. <br /> An .ambient air sample taken from the breathing zone (i.e. , the <br /> area approximately 1 foot above and 1 foot below the nose) should <br /> be taken occassionally and analyzed with the gas chromatograph to <br /> measure exposure levels. <br /> 7 <br />