Document jNVdND1v2G4DEpRQGLbZaJjOQ

^ ||/ '~u'* In t e r -Of f ic e Le t t e r Cleveland "* H. E. Spltxer ere* ro l e t t e r o r CHICAGO RESEARCH CENTER anALTTICAL BESKAHCa n cure August 24, 1971 suajccr Lead In S-W Paints oterATse av \V. H. REYSLi AUG 2 6 1971 Based on our phone conversation of 8/20/71, I have Initiated two projects described as follows< ADP-7726 - 'Tost for Lead In Lead Tree Paints' Saeplas of Can Clo Enseal and Super See Toes will he analysed for the aeount of lead present. The procedure used will ha coeplete digestion of the paint solids followed by etoele absorption analysis of the final solution. By this technique we expect to find lead. If present, at the 1 ppe level. The cheelst In charge of this work is Iboeas P, Car11. AUP-7727 - 'Extraction of Lead froa Cured Paint Piles' Various paints containing known quantities of lead as a drier and/or pigeent will he used in thla study. Cured files will be prepared and will then he extracted with 0.3X hydrochloric add and with 4X acetic add. The extraction solutions will then he analysed by Atonic Abaorptlon for the deteralaatlen of lead. Tha 0.5X hydrochloric add solution was choaen tinea that in tha approxleata concentration of atonach add. The chasiat in charge of thia work la Clyde P. Him. A high priority has bean glvan to tbaee projects and wa will keep you Infnmart of data as it la obtained. 9. Scott, Director Analytical tasaarch Papartntnt EOT/ac cci EM POO ECH JOT CFH TPC CONFIDENTIAL OOO7-SWP-O38160 N24271