Document n9qeEe4qgxkvG8MMrnj783oeG

ETHYL CORPORATION INTER-OFFICE PLAINTIFF'S EXHIBIT ETCO-777 To T. R. Robinson, M. D. Address BR Plant From H. M. Taylor Subject Welding Fume in Maintenance Shops Baton Rouge Plant Preliminary Industrial Hygiene Report Address BR Tower Date September 21, 1973 While conducting the recent asbestos survey within the Baton Rouge plant, I was also requested to perform a preliminary industrial hygiene evaluation of ventilation in several maintenance shops. Plant super vision indicated there had been some employee concern about ventilation control of welding fume. Please keep in mind that this was intended to be a preliminary survey, as such it is not necessarily complete. I'll be glad to discuss any questions concerning the evaluation. If a detailed industrial hygiene ventilation evaluation is desired or assistance to evaluate fan performance or noise from these systems, please let me know. HT :ws t cc: W. C. Strader S. O'Amend H. G. Borque R. Conrad J. Klock W. E. Rinehart, Sc. D. ETH00003629