Document M44pzO6GbNeNLBqzgReM8mory

GEN ERA L ELECTRIC X. COMPANY N E l A P A RK . C L E V E L A N D 12 . O H I O LAMP DI VI SI ON LAMP DEVELOPMENT DEPART MENT TELEPHONE GLENVILLE 1-6600 Sept em b er 6, i960 Dr . R. A. Keh o e Ke t t e r i n g La b o r a t o r y Un i v e r s i t y or Ci n c i n n a t i Ed en an d Bet h es d a Av en u es Ci n c i n n a t i 1 9 > Oh i .o Dea r Dr . Keh o e: . Su b j ec t : L a mp Co a t in g Co n c e r n in g o u r p l a n s t o v i s i t y o u r e l a t i v e t o t h e s u b j e c t m a t e r i a l , Dr . a n d I w o u l d p r e f e r T u e s d a y , S EPTEMBER 1 3 t h , WITH A M ID -M O R N IN G A R R IV A L . Kl i n e . T h e c o a t i m g m e ' w j l l d i s c u s s i S ONE PR E SE NTLY UNDER D E V E L O P M E N T , AND CONS I 5 T 5' 0 F B A S IC LEAD- CARBONATE ( S P b COq - P B { O H } p ) THOROUGHLY SUSPENDED IN CELLULOSE ACETATE b u t y r a t e - a l k y d r e s i n . S O L U B I L I T Y OF T H I S S K I M , WHEN P E E L E D FROM T H E L A M P , WAS as f o l l o w s : . 50 6.8,A . P u l V E R I ZED AND S U S P E N D E D I N M L . OF P O O L E D S A L I V A , PH WITH /50. / ; . C O N S T A N T S T I R R I N G FOR TVVO HOURS AT 98 F - , l 4 M I C R O G R A M s ML. . 5. P o l v e r i z e d a n d s u s p e n d e D I N 5 0 . M L . OF POOLED G A S T R I C J U I C E , PH FOR TWO HOURS A T 9 F W I T H C O N S T A N T S T I R R I N G - 2 0 0 M I C R O G R A M s / ^ O M L . .. M V/ HEN T H E L A M P I T S E L F WAS I MME RSED I N S A L I V A FOR TWO H O U R S , O N L Y 2 M I C R C G R A M S WERE FOUND D I S S O L V E D I N j O m l ... /' / ' . . ; - / . T h e : v a l u e o b t a i n e d , i n c o n d i t i ON ( b ) REP RES ENT ED, AB OUT 1,8 OF T HE T O T A L L EA D CON T E N T OF THE E N T I R E : ; S K I N . T HE SOL US I L I T Y O F ` T H E L E A D C A R B O N AT E C E R T A l N L Y / A PPE ARS MED I A T E D B Y T H E E N C A P 5 U L A T I O N w i t h CAB. F r o m t h i s w e h a v e c o n c l u d e d t h a t i n g e s - T I ON OF T H E E N T I R E C O A T I N G FR o m o n e o r s e v e r a l l a m p s w o u l d n o t c o n s t i t u t e a / H A Z A R D FROM E I T H E R A C U T E OR C H R O N I C P O I S O N I N G . O u R P R I M A R Y CO N C E R N O V E R T H I S C O A T I N G I S TO BE A S S U R E D T H A T I T WOULD P R E S E N T NO H A Z A R D TO OUR C U S T O M E R S . Th e c o a t i n g s w i l l b e o f d i f f e RENT P A S T E L SHADES A N D , AS S UC H, THE LAMPS MAY A T T R A C T T H E A T T E N T I O N OF YOUN G C H I L D R E N AND I N F A N T S . OuR E X P E R I E N C E S W I T H C h r i s t m a s t r e e '; ;l a m p s h a v e / b e e N T H A T T H E Y M A Y , A T T I M E S , B E C O M E O B J E C T S FOR S U C K I N G OR GNOW I N C . A T SUCH T I M E S WE I N V A R I A B L Y R E C E I V E L E T T E R S AND T E L E P H O N E C A L L S FROM P H Y S I C I A N S AND PAR ENTS A S K I N G ABOUT THE HAZARD AND E X P E C T I N G A R E L IA B L E ANSWER. . To T H I S E N D , WE WOULD L I K E YO U T O C O N D U C T AN I N D E P E N D E N T E V A L U A T I ON O F T H E S E C O A T I N G S FOR T H E P U R P O S E OF D E T E R M I N I N G W H E T H E R I N G E S T I ON; O F T H E E N T I RE C O A T I N G FROM ONE OR S E V E R A L L A M P S WOU LD C O N S T I T U T E A H A Z A R D . H O P E F U L L Y , WE B E L I E V E YOUR C O N C L U S I O N S W I L L C O N F I M OUR OWN T H A T NO H A Z A R D I S I N V O L V E D . I F S O , WE E 0003876 y* Dr . R. A. Ke h o e Pa g e 2 WO U L D L I K E T O H A V E A S T A T E M E N T FROM YOU AS TO YOUR C O N C L U S I O N S , T O W H I C H WE C O U L D R E F E R I N A N S W E R 1 NO I N Q U I R I E S . I F N O T , WE H O P E YOU W I L L BE E N T I R E L Y C A N D I D I N E X P R E S S I N G Y 0 U R OWN V I E W S . ' S i n c e t h e l a mp h a s n o t y e t b e e n p l a c e d o n t h e ma r k e t , y o u w i l l a p p r e c i a t e t : T H E D E S I G N AND C O N S T R U C T J ON ' ARE ' S T'I LL. P R O P R I E T A R Y I N F O R M A T I O N . WE A S K T H A T YOU K E EP T H I S R E QU E ST I N C O N F I D E N C E AND NOT D I S P L A Y THE L AMPS OR P U B L I S H OR MAKE KNOWN THE R E S U L T S OF YOUR E V A L U A T I O N W I T H O U T OUR W R I T T E N A P P R O V A L . D r . K l INE AND I W I L L BE B R I N G I N G THE SAMPLE LAMPS WI T H U S . V/E L O O K F ORWARD ' TO OUR ' . V I S I T W I T H Y O U . , :. Ve r y t r u l y y o u r s , IM:ej p v . cc : E M Kl in e , M.D KP 00039? r*i (