Laserfiche WebLink
Table I <br /> Hazard Exposure Guidelines* <br /> ............................................................. .......................................................................--.............................................................................. <br /> SUBSTANCESCAL OSHAi 1988-89 ACGIH <br /> ....................................... ............................................................................................................................................................ <br /> PEL TLV <br /> ........................................................ ..........................................................................................................--.1......................................... <br /> Benzene10 ppm (TW) <br /> 10 PPM (TWA) <br /> .................................................. ................................... .......................... ................................................................................. <br /> 25 ppm (EXQ 25 ppm (STEL) <br /> ............................................................................................................. <br /> ..............................--....................................... <br /> 50 ppm (Ceiling) <br /> ...........................................................................*.................-..................................................... ............................................................I......... <br /> ...........................................................................................I--------- ................................... <br /> ........... <br /> Toluene 100 ppm (TWA) <br /> 100 ppm (TWA) <br /> .................... ................. ...................................................:............ ......................................................................... <br /> 300 ppm (Ceiling) 150 ppm (STEL) <br /> ...................................................... .................................. .................--......................................................................................... <br /> .......................................I...................... ........................................................................I.-............................I................-,................................ <br /> Xylene 100 ppm (TWA) <br /> ............. ..................................... IW ppm (TWA) <br /> ..........................................I.................... ................. ........................................... <br /> .................................................................. 150 ppm (STEL) <br /> ................................. .................................................................... <br /> .......... ............... ............................................. ............. <br /> ............................... ................ .......... ................. ........................ <br /> Gasoline 300 ppm (TWA) <br /> 300 ppm (TWA) <br /> .................................................................................................................................................................. ...........................,.............. <br /> 500 ppm (STEL) <br /> ................... .................................................................................... ...................................................................... <br /> ..................................................................................................... ....................................... <br /> . ......................................................................... <br /> Etheldibromide 20 ppm (TWA) <br /> ....................................................... .....................-............................................... .045 ppm (TWA} <br /> .................................................................... <br /> 30 ppm (Ceiling) <br /> .13 ppm (STEL) <br /> .............................................................. ................................................................. ................. ..................I.............-.................................. <br /> 50 ppm (5 min. max peak) <br /> ................................................... ................... ............. .................................. ...................................................................... <br /> ............................................................ ................................................................................... ........ <br /> Tetraethyl Lead .075 rflg/iO <br /> .075 mg/m3 <br /> *All of the above are compounds that may be encountered during excavation. common sense dictates when levels are such that extra <br /> proicefion is necessary, <br /> 4 <br />