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LTD 45-57 December 14, 1945 DBTBS.iCEmyiQH OF LEAD BY DI5H1SQM A Critical Comparison of the Methods Described In LTD 42=5 and DSM 44-188 PURPOSE (1) To evaluate certain factors in the "mixed-color" method for lead given in LTD 42-5 (2) To compare this method with the "one-color55 method described in DSM 44-188. (3) To check the sulfite reduction method, given in DSM 45=39, for the removal of Iodine from the solutions obtained in the determination of TSL in air.

THE ASSOCIATED ETHYL COMPANY LIMITED LONDON REGULATIONS GOVERNING TEE CLEANING & REPAIRING OF STORAGE TANKS WHICH HAVE CONTAINED LEADED GASOLINE Date of Issue ; November 1945.

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I N TER -OFFI CE CORRESPONDENCC Et hyl Gaso l ine Corporat ion Ch r y s l e r B u il d in g 405 Le x in g t o n Av e n u e Ne w Yo r k December 21, 1936* Dr.

January 25, 1965 Dr.

Kobert A.

CENTER FOR THE BIOLOGY OF NATURAL SYSTEMS W A SH I N GT ON UNI V ERSI TY ST.

April 15, 1956 PERSONAL AND COKFIDEMTIAL Mr.

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Ke n d a l l Re f i n i n g Co m pa n y PRODUCERS, REFINERS AND M AR K ETE R S 100% PURE BRADFORD GRADE PENNSYLVANIA PETRO LEUM AND ITS PRODUCTS M AIN OFFICE AN D R E FIN E R Y Br a d f o r d ,Pa September 9, 1938 Dr.

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