Document ppeo77b744BN7DwMyr1d71vwj

! August 26, 1964 Mr. E. deNslenne Director of Division of Mines Inatitut Rationale das Mines Pstursges Rue Orande 60, Belgium Dear Mr. dsMslennet 1 have bean asked to forward tosielty inforaation on our hydraulie fluid, Pydreul F-9* X have enoloeed a sunaary wbloh X hope will provide the inforaatlon desired. Pydreul F-9 has been widely used In Ansrlean Industry as a hydraulls fluid in nany natal working plants inelud ing dlseestlng end other wsehlnes where exposure to molten natal or other heated natal surfaees has been a possibility due to leakage or aeeidental breaking of hydraulie lines. Where eeeldente have oeeurred there has been evolution of vapors with eons deeoaposltlon of the fluid depending on the tanpereture involved* In no esse has there been any serious illness or injury to workers. Xf X oen provide any additional inforaation or answer speelfie queetlons, please do not hesitate to let ns know. Tory truly yours. /W RBCinJb R. Beset Kelly, M.P. Medieal Director oo sanual F. Folaek Piatriat 8 Bureau of Mines (1. 3. Depertaent of the Interior 4600 Forbes 3t. Pittsburgh, Fa* 15813 boo; Denis Perry - M.E. Brussels D. F. Smith - st. L DSW 018841 STLCOPCB4005385