Document jm661vBaeQa2y78vY8Q7BeJ15

JoKns-ManviBe RESEARCH CENTER m. Manville, NewJersey September 25, 1952 Dr. Kehoe Kettering Laborat.orres Cincinnati , Ohio Dear Dr,. Kehoe; 1 - ,le have been requested to make spectrographic analysis on samples of blood and urine, especially for lead. Vie will apprcia :e any suggestions you may offer con cerning the for:'muliation of standards and the establish- ment of a satisfa*ctory procedure for this work. Manville, NewJersey October 9, 1952 Very truly yourp, / // S. R. liiley // Spectroscopist .c monthly checks m d s . I would determination of hbw yours, '/jllLE CORPORATION hr Chief Chemist N6086 Telephone:SOM. 8-5000 J oki\s-Maiwille CORPORATION Manville, NewJersey October 9, 1952 D r . Kehoe Kettering Labratory C inc innati, Ohio ii Dear ISir: Our plant has started program for periodic monthly checks of employees handling lead or lead compounds. I would appreciate obtaining your methods for the determination of lead (Pb) in urine and blood. Thanking you in advance... RJtujp J Very truly yours, JOHNS-MAMELE CORPORATION /.R /'Jacobs, Chief Chemist N6086.01