Document KJzDe14Ev5XXXqg7ZVMzZK77X

September 5 1956 Or, Joseph F. Treon The lettering Laboratory College of Medicine--den Avenue University of Cincinnati Cincinnati 19, Ohio Dear Joe: Will youlefc ofiLkxjow when we might expect a preliminary report on the f^draul.150 studies? Frank Iangenfeld visited the Portsmouth Navy Yard last week where several new submarines are under construction and where older models are being converted In one respect or another. The engi neering, construction,, and operating personnel in the submarine service are extremely anxious to get some word from Bulled regarding the possible use of Fydraul 150, When Bob Side In Washington reported verbally the concentrations you found in your experiments, he left Bulled with the Impression that there was no hope of getting approval for this fluid in sub marines, You will recall that your figures show a concentration of Aroelor above the recommended threshold hygienic standard for eight hour dally exposure, I am sura that Commander Siegel looked at this and threw his hands up In horror on the basis that sub mariners might be exposed to such concentrations not only for eight hours, but for twenty-four hours continuously, X suppose further that Siegel neglected to consider whether or not the use of Fydraul 150 oould, under any conceivable olroumstanees, result in saturated atmospheres within a submarine, Xn the meantime, the non-acdloal people concerned with submarines have been unable to find any substitute fluid which meets their specifications with the exception of Fydraul 150, and engineering plans have been completed net only for the systems which would use 130 In new submarines, but also conversion units for submarines now In service. These people are completely stymied, however, until Bulled Issues a acre satisfactory verdict. Langenfeld and X believe that we should at least make an effort to convince Siegel that the Portsmouth Navy Yard should be given per mission to install 130, either In a completed submarine or a suitable section thereof, and actually measure air concentrations This yfryuld^ao| tgo glfgLcul^a^nce there la an industrial hygienist DSW 162484 STLCOPCB4041056