Laserfiche WebLink
' 1 ppmv benzene. This level is one tenth of the current occupational <br /> Permissible Exposur( imit (PEL) for an 8 hour )osure to benzene. <br /> Action Levels of Hydrocarbon Components in Petroleum Fuel: <br /> Gasoline >300ppm PEL LEL > 10% <br /> Benzene > 1ppm PEL Oxygen <19 .5% <br /> 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 is 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 instructed to stay up wind and <br /> methods will be applied to subdue fugitive vapor emissions such as <br /> sprinkling soil with water, or the use of copus blower. <br /> The site Safety Officer will make such determinations . <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 are >19 .5% . <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 and may cause headaches and <br /> dizziness . <br /> Oxygen Deficiency: May cause dizziness . <br /> SSP-5 <br />