Document 44nwryMvDvkpKZV51GBp0dnNa

. Ma Force 31-71 Fe-143 Objective: Deteratne the fate of FC-143 in the Toflon process. Status: 90% of FC-143 ts absorbed on or incorporated in Teton. C143 is probably decomposed in sintering. Tightly bound FC-143 goos to the customer fn I product. Air sasples taken at S-3 and I process show 70-143 0 be < 50 ppb in operator breathing zone. 000C04 EISDP7R1O404O6S7SS FC-143 DATA 2200 ze ADORED 10 DISPERSION P48 Samples Supernatant Liquid Rav Dispersion - 35% Solids Concentrated Dispersion 10 Control PtPiLaevuetl dofphFaCs-e143 tn 2 125 190 3000 TeflodProcess Vash Reel Water Regeneration Bath so Not Detectable Ar Sasples Roll 2 Ro 11 R11 15 Operations Desk Induction Dryer Brit Above Induction Dryer Approxtuate Temp. OF 250 80 - 700 680 ~ 700 7s - Level of 7e-143 ppb <0 : NOTE: hAitgrh.samples uere taken 18 Snches from the face of the machine and 5 feet 00000s 1sDp7r1o40206s8SE ~ FIGURE 1 ) viscose | 1 part TEFLON YARNPROCESS : res Dispersion Erearll I TIso r= == so, -- = J=--\ Feseneration Bath Cash reat S007 p1e6r7 55.. vnyeon erin = 200% Frou 2 "I ARNPROCESS. vent Bleached QO D30s0seprpsioFnC 143 Induction dryer 000606 E1sDe7R1o404065957