Document vVEOQmba84zg535w71zVOEVYq

February 26, 1968 Mr. Julllan Pasano Air Products and Chemicals, Inc. Rout* 222 Trexler Town, Pennsylvania 12.1G7 Dear Mr. Pasano THERMHIOL FR-LO-TEU? Toxicity and Sofa Handling Information On the basis of animal toxicity studies with othsr Therralnol fluids, Thenninol FR-LO-TEMP may ba considered moderately toxic from tha standpoint of accidental massive skin exposure and only slightly toxic if accidentally Ingested, single exposures to high concentrations of vapors (when heated sufficiently to volatilise) or high-concentrations of decomposition products (if the fluid is accidentally dlaoharged into the fire chamber) should not be serious hazards because the irritating character of such concentrations preclude voluntary exposure* Ropeated or prolonged skin exposure ahouLd be avoided since the fluid acts as a solvent for fats and oils of the skin. Removal of these natural, protective barriers can lead to drying and chapping such aa occurs with expooures to paint thlnners. More Important, Thenninol PR-LO-TEMP may be absorbed Lf It la allowed to remain on the unbroken skin. Por these reasons, we recommend that the skin be washed with soap and vrater if there is contaot. A skin bum resulting from accidental contact with hot fluid should be treated In the normal manner for any thermal bum due to hot oils. Because of Its low vapor pressure, there Is no significant vapor inhalation hazard when the fluid is at room temperature* Por example, there is no vapor exposure problem while trans ferring the Therminols from shipping containers to the heat transfer system. On the other hand, the vapors emitted when the fluid is heated to elevated temperatures are injurious on prolonged exposure. It is estimated that the "threshold limit DSW 020264 STLCOPCB4008193 Hr. Juilian lucano 2- - Fab ruary "'6, v; 6 8 value or atmospheric vapor concentration which cannot be oafely exceeded (on a daily basis) is 0.5*1.0 milligrams of vapor oer cubic meter of air in the workroom. In heat transfer inatallotions, tho fluid -Jiu3t be used in a closed system free from leaks with the expansion tank vented to the outdoors. Accordingly, there should be Tittle or no opportunity for workers to cone In contact vrith vapors. Our lafcel for this product contains the fo' lowing px'ecaut'.onary ctateicenfct CAUTIONi Contains Chlorinated Hydrocarbons, t f Avoid prolonged breathing of vapors or Mi3t3. Avoid contact with eyes or prolonged contact with akin. If akin contact occurs, remove by washing with soap and water, following eye contact flush with . water. / If clothing becomes soaked with fluid, launder before wearing again. / Very truly yours, / I ! :i2X:c js I cc: Or. Robert Campbell R. Emmet Kelly, M.D. Medical Director / / /\ \ \ \ DSW 020265 STLCOPCB4008194