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­01­'�J............... <br /> �Tw S.... <br /> Benzene 1 NKV NKV NKV 10 5 NKV Skin, <br /> 1 Car <br /> To <br /> Toluene -- - 300 o 200 10 min. 100 150 1 2000 Skin <br /> 1per 8 hrs. <br /> Ethylbenzene 100 NKV NKV N<V 300 500 NKV --- <br /> Xylenes --To—o 200 30 'min. 300 100 ' 150- 1000 --- <br /> per 8 hrs. L <br /> Gasoline 300 NKV NKV NKV 300 500 NKV <br /> PEL Permissible,Exposure Limit <br /> EL Excursion Limit <br /> ED Excursion Duration <br /> CL Ceiling Limit <br /> TWA Time-Weighted Average <br /> STEL Short-Term Exposure Limit <br /> IDLH Immediately Dangerous to Life and Safety <br /> [car] substance identified as a suspecteor confirmed 'carcinogen <br /> [skin] substance may be absorbed into ti,e bloodstream through the skin, <br /> mucous membrane or eyes <br /> Contact with hydrocarbon-based fuels may result n dermal irritation due to desiccation. <br /> Respiration of air laden with hydrocarbon vapor may result in oxygen deficiency, central <br /> nervous system depression or irritation of the mucous membranes. Mixtures of air and <br /> hydrocarbon fuels can present an explosion hazard, <br /> 4.2 PHYSICAL HAZARDS <br /> Physical hazards present at R& L site are included but not limited to the following: <br /> • thermal stress; <br /> • fire and explosion-, <br /> Environeering,Inc. Project No.00-004.0 3 Page 4 <br />