Document n9V2BmG7pqYJykp62vBgJ0mBz

S t a n d a r d -Va c u u m O i l C o m p a n y lOOO We s t c h e s t e r Av e n u e Wh i t e P l a i n s , Ne w Yo r k RO CKW ELL 1 - 1 0 0 0 M ay 9, 1960 D r . R ob ert A. Keh oe The Ketterin g Lab oratory College of M edicin e, Eden Avenue C in cin n ati 19, Ohio D e ar D r. Ke hoe : IN R E P LY PLEASE R EFER TO 7670 - Additives T o x ic it y Tetram eth yl Lead It w as good to talk w ith you th e oth er d ay an d I am v e r y gr at e fu l fo r you r con fid en ce an d a lso fo r you r v e r y p r om p t r e p ly w ith th e t o xicit y d at a on tetram eth y l le ad . One of ou r o fficials in the or gan ization w as con cern ed about the h ealth asp e ct s of h an dlin g the con cen trated flu id and I ad vised h im to u se the follow in g two p ar a gr ap h s: "F r o m in form ation developed durin g the p ast y ear about tetram eth yl lead , it is quite cle ar th at th is p r e se n t s no m or e h az ar d s th an the h an dlin g of t e t r a- e t h y l le ad . If th e safe t y p r e cau t io n s now in e ffe ct fo r h an dlin g t e t r a eth yl lead w ill be con tin ued fo r tetram eth yl lead , th ere is n oth in g fu r th er th at n eed be don e. 11Th e v o la t ilit y o f th e m e t h y l co m p o u n d i s a g r e a t d e a l m ore than th at of the eth yl com poun d. It is m an datory th at m ask s be w orn when h an dlin g con cen tr ated t e t r a eth yl flu id . It sh ou ld be em p h asized th at th is p r ecau tio n is even m or e im p ortan t when h an dlin g th e m eth yl com pou n d ." I th in k th is is ad equ ate but if you h ave an y o b je ct io n s, p le a se le t m e know and we w ill ch an ge it p rom p tly . Th an ks again for your k in d n ess. Sin cerely , K R F :ge l K. R. Fourch er, M, D. N9657