Document 6BK58mBX9XrmxvBL86GYkpqzE

HE 0009687 * Material Source: Submitted: Required: Scale from Side Plates Standard Oil Company, El Segundo, California (cf. Chenault's letter dated February 25# l^ijB) March Ij., I9I4.8 Determination of lead compounds present Results Per Cent Lead as Lead Tetraethyl Per Cent Lead as Triethyl Lead Per Cent Lead as Diethyl Lead Halides Per Cent Lead as Di- and TriethylLead Halides and Carbonates Per Cent Lead as Inorganic Lead <0.00001 O.OOO3 0.0017 0.QOOI4.5 0.225 Reported: 3~2ij-if8 0003688 ETHYL CORPORATION INTER-OFFICE CORRESPONDENCE TO Dz* R. A. Kehoe FROM A* H. Chenault SUBJECT Standard Oil Company - Steel EL Segundo, California a d d r e s s Cincinnati a d d r e s s Lo s Angeles dat e April 23, 1948 I regret very much not having answered your letter of March 31st sooner, regarding scale from side plates of a gasoline tank which you analyzed. You asked for the length of time that had elapsed since the plates (and scale) was in contact with gasoline. The tank was cleaned October 27, 1947, and gasoline was in the tank up to within a few days of the time the tank cleaning started. The samples were taken about February 23, 1948. This would give an elapsed time of about four months between the time the samples were taken, and the time it was in contact with the gasoline. Yours very truly. AHC:dc A. H. Chenault kf 0009689