Document xQGyaQqpn6gQ41DYV0JOR6x0

August 11, 1976 ..r. '.June L. Proctor 11310 V.aito House hoad upper .iarlix>ro, Maryland 20870 ;.)aar .Jr. iroctori Askarol dielectric fluids are sold ny Westinrjhpuse as IhEKTIibW and hy .Jeneral Llectric as PYhAhOL . AKUCL'JKS CD (Chlorinated hipnenyls) make uy from 60 to 1004 of tne various aucarola. Under ordinary handling procedures at room temperature, askaruls saould not present significant health hazards. however, like ;uany chlorinated hydrocarbons, this material has the potential for chronic toxicity as a result of its aLility to jq stored in fat and tae liver. Lxposure to taese compounds should be rininized. unclosed is a toxicity and handling statement for I.iLh'i'Lbh I pu a id animal toxicity data on various AKoCUhOh troducta. On tae uasis of tatjau values, taese materials cannot Lu regarded as .laving a aiga degree of acute toxicity. Compound uat oral 0050 (mg/kg) o'.aniji t Dermal JLiUaO (mg/kg) AKOCh H n ft 1 ui T221 1232 1242 1248 1254 1260 1262 1268 1272 2565 4273 4465 J430 o442 2,35(3 3,980 4,470 8,650 2,750 11,900 10,000 11,300 10,900 7,940 6,310 6,920 10 ,000 0,100 6,270 . 1,580 v 2,000 -> 1,260 794 . 1,000 ^ 1,260 ^ 1,260 ^ 1,260 7 2,510 7,940 ^ 2,000 r 2,OoO 2,000 ^1,260 ^ 2,000 DSW 019777 STLCOPCB4007710 -lr. dene L. rroctor -2- August 11, 1976 AKOCLOh If tl II II H II 54GB o037 GU40 o 050 6 Ob 2 6070 O09J ? 12,000 4,920 3,290 4,130 b , 050 4,020 10,000 7,940 5,010 3,160 ' 7,940 7,94 0 " 7,940 ' 7,940 because of tiiair low volatility, chlorinated bi p nen y 1 s do not ^resent a significant vauor innalation uazard at room temperature, however, hunting of tueae materials, or usou vaiicn could .reduce aerosols, could result in increased air concentrations of these ;>rouucta. The American Conference of iovernnental Industrial hygienists nas recommended Threshold Lin it Values of 0.5 'rg/mO and 1,0 mg/mO for 54i and 42* chlorinated ^i.'honyla, res; .-actively. Vary truly yours. Jamt-a d. Laveglia, i'nu Senior Toxicologist J< 'Ll ali,* cc: Ur. James H. Lpraul OSW 019778 STLCOPCB4007711