Laserfiche WebLink
1' <br /> Table 1 <br /> Hazard Exposure Guidelines <br /> SUBSTANCES CAL OSHA 1988-89 ACGIH <br /> PELTLV <br /> Benzene .... ........._10P..P..R'...� ...................._......._..........................._.1� P.P..m._�T .'.�)......... <br /> __..................._. _._. _ ._.._..__..........._25...PP..m...(EXC�..__......................_......... 25..PP..m (STEL)................._..... <br /> 50.1'Pm...(Ceitin0...._....................... <br /> Toluene ._..__........... = ----..........._100-P..P..m. ��......_. _......._100...pP..m._ '. ..........__......... <br /> .....................................-...._._........ .. <br /> .............300 Ppm_(Ceilin ....................................._........._150..PP..M.(S ._..._........... <br /> ... <br /> ............................................................._.......................................................__..............................................................................................................................................._....................... <br /> Xylene.............._....__....._.._...._.._................._............_100.pP..!n._ A�........._. ...._1�0..pT.m._(T �....................... <br /> .......__........................................--- P.........'...(STEL)...................... <br /> Gasoline '........_..._............._300...PP..m... A�...._._.................i..........._......._300...PPf.... ... )......... <br /> .....................................................----.._......_. .. <br /> ..................._500.....Pp.m..CSTEL).._.................. <br /> ........._......................................._....._....._........ ..........................................._._............................................_............_........................................._............................... <br /> .......... <br /> Etheldibromide....._..............'---.._....................2 .Pp. ........_........................................._c045..PP..m ..................... <br /> _......................................._............_ :. <br /> _................_30ppm (Ceilin .....................................................1..........ppTII....... <br /> ..(STEL?............._........ <br /> 50..p.Pm (5 min.:._max..a. ................................ <br /> Tetraethyl Lead 075 m /m3 .075 mg/m3 <br /> -U of the above are compounds that may be encountered during excavation. Common sense dictates when levels are such that e\na <br /> protection is necessary. <br />