l -.n o iA i ;o *r r rifad* f g o v sauEitM. i h ^u st h ia l h t b i f u s i s A u c u t 19, 1944 i - r * Poker ir . 3rehn lap.

\ ARCHIVES OF ENVIRONMENTAL HEALTH EDITORIAL BOARD KATHARINE R.

REPORT SURGEON GENERAL'S AO HOC CCMHITTEE ON TETRAETBtL LEAD January 8-9, 1959 Washington, D.

W ILLA RD M ACH LE, M.

COP Y ETHYL CORPORATION CHRYSLER BUILDING 405 LEXINGTON AVENUE NEW YORK Br* orge Calingaert H, W, Kaley Detroit Itew York February 24, 1943 Dear Geoi'ge: Thanks a lot for your .1etter of February 23rd relative to the shipment of fluid to Amecco Chemicals, Inc. of Bcche^ter and generally discussing the subject of exchange of samples with others ', engaged in research work* Personally, can see no reason why very wall samples of tetraethyl lead should not be sent to others engaged in research work at your own discretion.

Gen er al H ygien ic Measures and ^ F a cilit ie s Required In the Manufacture o f Te t r a e t h yl Ifceaft and In blen d in g E t h yl F lu id The p o t e n t ia l h azard s a s s o cia t e d wit h th e m anufacture and blen d in g o f E t h yl F lu id ar e p r obably th e most ser iou s t h a t can be found in any o f t h e lea d trad es However# th ey a r e cap able o f com plete co n t r o l i f proper p r ovision s ar e made to m ain tain an adequate d egree o f p r e cis io n and cau tion in ca r r yin g out p la n t op eration s I t i s exceed in gly d ou b t fu l i f t h is can be done u n less the most r ig id and c r i t i c a l m ed ical su p er vision i s est a b lish ed and m aintained# but the exp er ien ce o f th e p ast twelve yea r s has proved t h a t com plete su ccess can be a ssu r ed by th e means o f m easures o f con t r ol recommended h erein I t would b e most u n fortun ate# in view o f the dem onstrated adequacy of suoh methods# i f cases of in t o xica t io n and fa t a l i t i e s were t o occur in p la n t s n ot so sa fegu a r d ed , s in ce i t would be q u it e obvious t h a t such in cid e n t s were th e r e s u lt o f ca r e le s s n e s s or la ck of regard fo r p ast experience The co n t r o l m easures co n s is t of th e fo llo w in g co-or d in a ted types o f h ygien io s u p e r vis io n , namely, (1) a co n t in u a l c l i n i c a l study o f a l l workmen, (2) r e gu la r stu d y o f th e m agnitude o f th e lea d exposure and lea d ab sor p tion of r e p r e s e n t a t ive groups o f workmen through p er io d ic determ in ation s o f the r a t e of lea d excr etion in the u rin e and fe ce s , (5) r egu la r p er iod ic c r it ic a l survey of p la n t a c t iv it ie s and operation s by the p h ysiola n -ltvch a r ge, end (I4O r e gu la r d eter m in ation of th e lea d con ten t of the a ir of a l l rooms and workin g spaces in th e p^ ant C lin ic a l Work Hot on ly i s i t n ecessa r y t o m ain tain a 30sharp sea r ch fo r "clin ica l evid en ces of lea d a b sor p tion , bu t i t is a l im p er ative t h a t a l l typ es o f illn e s s among workmen be r ecogn ized and id e n t ifie d , i f t h er e i s to be a proper d egree o f m utual con fid en ce between th e workmen and th e m ed ical departm en t.

THE ASSOCIATED ETHYL COMPANY LIMITED ARTILLERY HOUSE, ARTILLERY ROW, LOYDOY, S W. 1 Jelejihom: ABBEY 3974 telegrams: ETHYLPORT, SOWEST.

Te u M u s e u m 8333.

December 15# 19^2 AIR MAIL Mr.

Employers Mutuals ofWausau 3 8 5 C O N C O R D A V E N U E B E L M O N T 78, M A S S A C H U S E T T S I V A N H O E 4 - 9 400 AIR HAIL SPECIAL DELIVERY .

A - E .

November 29# 1933 Mr* Am E.

I INTER- OFFICE CORRESPON DENCE Et hyl Gaso l ine Corporat ion Chr ysl er Buil ding 135East 42*iPSt r eet .

March 3, 1930 Mr.

November 23, 1929 Mr.