Document 94QokzRKE8pw8pde4RR33dX5

Interoffice Communication RjTC*^13 To From Date Subject Mr. K. W. Resh, Baltimore, Maryland E. A. Setzkorn, Analytical Research Section, Ponca City April 7, 1977 ) ANALYSIS FOR FREE BENZENE TN NALKYLENE ALKYLATES The three NALKYLENE alkylates received from you were examined by GLC-Mass spectrometry and vapor phase ultraviolet absorption, fox the presence of free benzene. The results obtained are shown as follows: Sample No. & Description ppm Benzene UV GLC-MS BA-62 N-500 BA-63 N-600 BA-64 N-550 <.5 <.5 <.5 <1.0 <1.0 <1.0 E. A. Set&korn Staff Scientist jo cc: FK:OCK:SEM SAL 0000ie982