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0022300 -1. C.~| -r- I I ^ Spectrographic analysis for load of samples of urine from 4 men* Samples collected before exposure to lead tetraethyl and Immediately after cleaning a tetraethyl fluid tank, using special Ethyl Gasoline Corporation nen equipment at Standard Oil Company of Louisiana plant at Baton Rouge* Dr* Machle, Hame Mgs Pb/Ll ter Before Exposure o.o6 0,09 0.07- o.o8 Mgs Pb/Liter After Exposure 0*11 0*09 0.13 0.l4 Reported ; 4-10-19 HZ 0022301 \