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-Mate riali Subm itte d Req u ir ed s ! l u e c h i n a d i s h Hay XT, 1963 by >r, H, A, lich e e fo r Jo h n A* Ze m t m r v &n 2^ 2 Ma in S t r e e t , H o e h e s t e r 1*1, Hc k Yo r k De te rm in a tio n o f s o l u b i l i t y o f Xasse in 5 t a c e t i c a c id h e a t e d t o C0 C* j a ft e r 30 minutes o f co n t a ct . An alysis us b-e r 3A-3 5 0 0 5% A c e t ic Acid Used i n T e s t 50 r :l. HST* Of ?b Fo u n d Hi,7 Le a d p r y ,.,- a y-h Fr o The l e t t o r i n g .La b o r a t o r y in t h e De p a r t m e n t o f :.'r o v e n t i v s H e ia n e and I n d u s t r i a l H e a lt h , C e l i n e o f H a d ic in e , U n i v e r s i t y o f Ci n c i n n a t i , C i n c i n n a t i , Cb io \j&a Th is r e s u ItAo b ta in e d by th e a p p l i c a ti o n o f n t e s t method which i s i n c u rre n t use i a th i s Labo rato ry in an i n v e s ti g a ti o n o f th e e x tr a c ta b le le a d 1 ta b le ware in common u s e , aa w e ll a s i n unusual typ e a o f t a b l e w are , i n th e Un ite d S t a t e s . E s s e n t i a l l y i t c o n s i s t s o f th e in tr o d u c tio n o f an a p p ro p ria te volume (deeencEln^ upon th e s hape and volum e o f th e ite m ) o f 5 p e r c e n t , a c e t i c a c i d , h e a te d t o 60* C, a llo w in g t h i s to rem ain i n c o n ta c t ( w h ile c o o l i n g ) f o r 3 0 m in u te s . The a n a ly s i s fo r le a d i s c a r r i e d o u t by raeana o f^ m o d ific a tio n o f th e d lth ie o a method which has been i n u s e i n t h i s Labo rato ry f o r many y e a r s . Tills re s u lt i s so h igh as to d e s ign ate th is a r t i c l e as a p o te n tia l source o f danger, fresa th e a s p e ct o f le a d , i f i t were employed r e g u la r ly in s e rvin g fo o d . The g r e a t e r p o r tio n o f th e t e s t s o f co n s o n i? u s e d t a b l e ware y i e l d l e s s th an 3 parts o f lead per m illio n parts o f th e e x tra ctin g dia, w h ile a fin din g o f so re than 6 p arts per m illio n i s rare . Signe d: Bobert A. &efccto, b. Hep or teU: 5 -2 0 -6 3 H i 0006013