Document oMqy5QqqK0Op4x0ON6aNp27

June 2, 1964 Mr, Howard B. gpielman Northrup Corp, Horalr 1263/66. 3901 V, Broadway Hawthorne, California 90250 Dear Mr. Splelmani Enclosed are a number of bulletin eoneeming the toxiolty and safe handling of our Fydraul hydraulic fluids. In* eluded speeifioally are a bulletin describing Fydraul P-9 and a oopy of the report free Kettering Laboratories Indicating their studies with this fluid. Although the figures and tables have been somewhat emasculated, I believe you will find the results indicated in the dis cussion. Flsase return this to me when you have had a chance to review it. v. *. * / o - 7 - < v The booklet on Fydraul AC includes a typed discussion of the anlaal toxicity studies. Accompanying the Fydraul A-200 bulletin there is a Xeroxed sheet suasnrising animal toxicity studies with this product. There ere enclosed also two reprints concerning chronic vapor inhalation studies with Aroelor# 1248 and 1854. These you nay keep also, ?ou will recall that X told you on the telephone our Tharalnol series PR-1, 9R-8, PR-3 are specially refined Aroelors. Thus, PR-1 is Aroclor 1242 (420 chlorinated diphenyl), PR-8 is Aroelor 1246 (480 chlorinated diphenyl) and PR-3 is Aroelor 1254 (540 chlorinated diphenyl). If you have any additional questions after reviewing this material, please do not hesitate to let me know. Very truly yours. EPWimJb Elmer P. Wheeler, Manager Envlronasntal Health Medical Department cot Alan 0, E&des, Monsanto Los Angeles OSt'J 018839 STLCOPCB4005383