Document wqLm7jGYYmdvYekR96k0LLe4d

OlhhaDhCE slid i;H K.A.Kehoe Ob fill DAY, APRIL 8, 1938 mi--.! -- uni* i.i.-- in i ..............mm mm -___ o.o: Dr. C. Edgar w^!br. 2 .A .ilehoe hr. Burtholomow Dr. Beatty Dr. lurt lor. tracabid.il In connection with the distribution of leaded fuels contain ing our new lead compounds, Dr* Kohoo feels v.h&t the chief health'hazard .oulU coiae fro^a the lead present in the vapor v/lseu the gasoline is ex posed to the air in bulk, auoxi, for instance* as wnen a man is rilling a tank at the ISling station. Dr. Kehoe is not so ranch concerned over t;:o practioully complete evaporation of a sample, such as when a spilling occurs, for instance, because the latter exposure is bound, to bo very intermittent while the former is constant as far as the filling station attendants are concerned. In accordance with the above, calculations as mo 11 as deter minations will be made of the amount of lean vaporized when 10,. of a gasoline evaporates in 1>* steps, rise results are then to bo expressed in tonus of niilii.runas of load per cubio ueter of saturated vapor and also in terns of milligrams of lead per cubic meter of vapor-air mixture diluted down to 2;.- gasoline vapor in the air, as this is about the li. it which can be breathed without causing poisoning from the gasoline. regarding the iuv/ton tost, hr. foahoa feels as mb uo, that the test should bo mde on a material which is jnore volatile than v/iiat vre contemplate using* Depending on the results of the above mentioned c alculations and determinations, lx nuy be bettor to run the Dayton tost on unstripped E4* K 001S271