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Karch 31, 1943 Mr. A. -a. Ghanaalt. Ethyl Corporation, 977 West Sixth street, Los Angeles, (14) Calif. I>ear busies I send you herewith two copies of the report of the analytical results obtained on the scale from the side plates ofytank as referred to in your letter of February 25. * 'the essential point in this la that the scale contains Q.2# of inorganic lead. As you see, organic lead compounds are present in only insignificant Quantity. a*he situation, therefore, is substantially the same as though these plates had been coated with a paint of extremely low lead concentration. Unless these plates were to be scraped or brushed under conditions that would give rise to considerable quantities of dust in a substantially unventilated place, there would be no risk of lead absorption in handling them. On the other hand, if the rust were thick, burning operations might give rise to appreciable lead concentrations, if carried out in a poorly ventilated area. On the whole the practical risk of dealing with these plates is insignificant. I should appreciate having information as to the probable length of time that had elapsed since these plates had been in contact with gasoline, since this information would give us a valuable clue to the length of time required for the complete decomposition of organic lead compounds in scale. It was a great pleasure to see you and the others in both bos Angelos and San -Bernai^din. X did not feel that I did' much to help you, but it was certainly pleasant to have a chance to sit down with a group of you. With beat regards to yourself and your associates, Sincerely yours. h.AK of C *0 * Mr. E. 0. Jones Dictated but not read. Enc. hobert A ' itehoe ,' i?I) I H&terialt Seuroet Safest! fcfcodt Bequired* Seal* fross Sid Plato-s ' standard dll Casspeisty, SI &egado# California {nf* efeamwltv*e letter dated Feferaary 2% l$i*8) March i;> SfttenBlnatlaa etf lead eoopeuiMUi present it&Elit- Per Gent Lead as lead Tetraethyl Per Cent Lead as trletfeyl Lead Per Cent Lead as .Diethyl Lead Salldee Per Cent Lead a hi- ral Trlefcfeyl Lead He1Ides end Oarfeeaafcee Per Cent Lead m Znorgaaio Lead <0,00001 0,0005 0,0017 0,00045 0.225 Reported t 5-^-4$.. K 0009601