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I ppmv benzene. 2 s level is one tenth ofrt current occupational <br /> Permissible Exposure Limit (PEL) for an B hour exposure to benzene. <br /> Action Levels of Hydrocarbon Components in Petroleum Fuel: <br /> .. it <br /> Gasoline >300ppm PEL LEL > 10$` <br /> Benzene > 1ppm PEL Oxygen < 19 .5% <br /> 1' Toluene >100ppm PEL <br /> Xylene >100ppm PEL <br /> Ethyl Benzene >100ppm PEL <br /> A hydrocarbon vapor analyzer will be used to measure real time <br /> breathing zone concentration for comparison with'" the 100 ppmv working <br /> limit. When a persistent level of 100 ppmv�jis observed, appropriate <br /> respirators will be donned and other vapor measurements will be made. <br /> If hydrocarbon vapors exceed 1000 ppmv or 10 ppm benzene, work will <br /> be stopped. The field crew will be instru6ted;1, to stay up wind and <br /> methods will be applied to subdue fugitive' vapor emissions such , as t <br /> sprinkling soil with water, or the use of copus blower. <br /> The site Safety Officer will make such determminations . <br /> If LEL is >10% in or around the tank, work must stop and not commence <br /> } until determined safe and/or LEL% <10% . <br /> If oxygen levels in the immediate work area are < 19 .5%, work must <br /> stop until determinated safe and/or levels a're >i9 . 5% . <br /> i <br /> Symptoms Of Acute Overexposure: Gasoline and gasoline vapors maybe <br /> irritating to the skin, eyes and respiratory tract. Gasoline vapors <br /> may effect the central nervous system andjimay .; cause headaches and <br /> dizziness. <br /> .,Qxygen Deficiency: May cause dizziness . <br /> } i <br /> SSP-5 <br /> } <br /> E <br />