Document rBk88z79bV4G7do80X8J9yrYV

C. Paton/D. E. Rouah J. S. Pullman - 1650 P. L. Slayton - 1650 November 18, 1971 Mr. Charlaa J. Wind tor Vlca Pra aidant Kaichhold Chamlcal Incorporated 525 North Broadway Whita Plalnaa, New York 10602 Dear Mr. Wlndaor: With regard to your viait with our Mr. J.S. Pullman wa wiah to confirm our poaition ra garding tha Tharmlnol FR haat tranafar fluid a. Theae producta ara polychlorinatad biphanyla (PCBa). Tha PCB concantra- tlon in our anvironmant haa incraaaingly coma undar tha acrutiny of varioua govarnmantal aganciaa and aciantific laboratoriea. Moat atudlaa indicata that cartain PCBa bacauaa of thair paraiatant natura will cauaa injury to cartain forma of bird, aquatic and animal Ufa. Tha affact on humana long term ia not known, thua wa hava takaa atapa to pravant tha apraad of PCBa particularly into tha food chain. ' We hava already inatitutad a policy where wa will no longer aall any FR flulda into now ayatami no matter what tha and uaa application. Wa are refuoing to aall any m aka up fluid to oxlating aya tain a involved in any way with food, animal lead, pharmaceutical, food packaging or food containora. Wa hava recommended that all of thaaa ayatema be converted immediately to a non PCB fluid auch aa our Tharminol 55 or Tharminol 66. Thla la the policy wa hava recommended for tha Tharminol FR-1 ayetam at your Reichhold plant in Morria, lllinoia. They manufacture paper coatlnga that ara uaad aa moiature barriera in food packaging. Wa ara at tha praaant time atill eupplying Tharminol FR fluida aa makeup into exiating ayatema that do not repraaant a contamination problem. On any ayatema that ara auapect wa ara recommending that they be drained completely of FR fluida and replaced aa aoon aa poaaibla. Generally drain and change la adequate, however, aoma ayatema may hava to be cleaned before refill to eliminate raaldua Tharminol FR. . , MOMS 096278 Mr, Chari* ( J. Wind cor November IS, 1971 Pag* 2 W* will *ec*pt uni 12 Quid at our Sauget, Illinois plant lor incineration and w* will absorb th* $. 03/pound charge normally assessed. On any international systems converted w* would suggest that a toxic landfill be used to dispose of the fluid. We would be most happy to provide assistance in any conversions of Therminol FR systems. Pleas* let us know if you have any questions. Very truly yours. lb Enclosure James J. Roder Product Supervisor Heat Transfer Fluids MONS 099279