Document Ra0bZw2aX9eZgBjL6DQ74bpEV

May 21. 1948 Hr. R. I. Mahurln Aoting Chief, Bureau of Isleal Industry U.S. Dspartsmnt of Agriculture 12th. and C. Streets Washington. D. C. Dear l!r. Mshurlm This Is to confirm tbs deolsions reached In the conference with yon in Or. Lehman's office May 20 with respect to the food r**^11! problem which we discussed at that time. The following Is cor Interprotatloot 1* The proposed film which we Intend to nannfaetorc for U*> margarine packaging -- and possibly also for use with other feeds, including cntmal feta - will eoaclet ef approximately eqmal quantities f e eepelymcr resin (Oeun 202} sal an iaCrlccir ncde ntbsr (either Bjrcar QB 22} or (Fsrbunan S22S90}, with snail peroontagee (approxi* antely Ut) of either glycerol eleate cdlhlc A, Aorowax C. eillea gal. ealslua stearate, eereain wan. or paraffin wan* 2. Me shall perform extraction ctmdloc with the nansfaoturwd film and present the data to yen fer your Inspection prior to formal approval ef the flln. The extraction studies sre to essentially consist of the determination of the quantities of both the Oeon resin and the Anerloan-mede rubber which Is extracted from the ooapleted flln when Immersed continuously in lord oil at 100F. for IS days. S. Fending the completion of the extraction studlee, you have given ns a temporary approval of this film for uco In the packaging of meat or meat produota. I should appreciate your advising me as soon as possible of the correctness of the shore interpretation. cry truly yours. 20460001 lf vs Me. S. MeCoradek Department of Industrial Hygiens and Toxicology BFG03560 r