Document pBkKXR0YRYQp6xqzBLOGqMYGa

Hay 21, 1948 Mr. R. H. Hehurla iotlag Chief, Bureau of Iniwa1 Zadattiy U.S. Dapartmnt of Agriculture 12th. end C. Streets Vuhiagtoiii D* C. Deer hr* Mshurlni This is to confirm the deelsioas reached la the conference eltii you la Or* Uhaa*a offlee Hay 20 with reepeet to the food f problem whleh discussed at that tine* The following Is oar interpretation! 1* The proposed fUa which sa intend to sMaafaetare for olaa* arprlai pankaglng -- aad possibly also for as# with otter foods, iwlodlof oHaal fata - will consist of approximately equal qwaatltlea of a copolymer reala (Oaan 202) and an As*rleaa-made rtffiber (sitter Hycar OR 26) or (Nrhau 661890}, with mil percentages (approxi mately 1$C) of either glycerol Cleats edible i, ierowax C, silica Cal# ealelwa stearate, eeresia wax, or psreffla wax. 2* We shall perform extraction studies with tho mnwfeotnrod film and present the data to yea for year Inspection prior to formal approval of the film* The extraction studies are to essentially consist of the determination of the quantities of both the Geon resin and the Ajnerloantoade rubber shloh is extracted from the oonpleted film when lmserscd continuously In lard oil at 100F. for 16 daya* 9* Fending the completion of the extraction studies, you hare given us a temporary approval of this film for use in the packaging of neat or Mat produots. Z should appreciate your advicing m as soon as possible of the correctness of tho above Interpretation* Tory truly yours. 20460001 wvif vs Department of Industrial Hygiene and Toxicology