Document mpjxzmXQ7N1rDneb1d4wMz1YJ

U>6 ! FC-143 AMMONIUM PERFLUORO OCTANOATE IN TEFLON ii i M. A. Forte A. M. Mokhtar 6/10/81 i OOOQ3 SPR000212 EID714129 INGREDIENTS Dispersion Process PPR Polymerization Decantation: - Supernatant - Dispersion as shipped to Spruance Fibers Level ps/g. 3000 2000 1000 000020 SPR000213 EID714130 Yarn Bleached Sintered FINISHED PRODUCT EXPOSURE POTENTIAL TEFLON PRODUCTS Phosphoric Acid Distillation Found ND (<5) ND (< 5) Theoretical 1600 1600 I Products I only 9A50 Denier I only 8100 Denier I and T 9450 Denier Kevlar I and T Phosphoric Acid Distillation Found 320 250 280 380 Methanol Soxhlet Extraction Found'' Theoretical 475 660 355 700 595 560 400 700 Key: I - Impregnated with Teflon dispersion T - Coated with Silicone oil * - Based on Teflon dispersion added 000021 SPR000214 EI D 7 1 4 131 WATER EXTRACTION AT 37C Yarn ID I and T 9450 Denier I only 9450 Denier I only 8100 Denier I and T Kevlar ppm Extracted from Yarn 180 130 130 180 % Extracted 30 27 37 45 00QG22 SPR000215 EID714132  T 9<ood Va rr % FC-143 Remaining on Yarn 000023 SPR000216 EID714133 THE EFFECT OF HEAT ON EXTRACTABILITY OF FC-143 FROM YARN Heat in Minutes FC-143 Remains on Yarn 150C 175C 200C 10 20 ' 30 40 75 41 72 '* 12 72 N/D 47 N/D N/D N/D N/D N/D N/D Not Detectable < 5 ppm 000024 SPR000217 EID714134 AIR ANALYSES LEVEL IN OPERATING AREA PROVISIONAL LIMIT - 0.5 ppb Spinning Location SM-2 SM-3 Level PPB, V/V ND < 15 ND < 15 Scrubber Water (Calculated) < 0.006 I Brodution Kevlar North of Machine ND < 15 ND < 15 00002S SPR000218 EID714135 SM-2 SM-3 EXTRACIABILITY OF FC-1A3 IN SPINNING Washed Yarn A90 60 Level ppm Wash Water 1 A Calculated FC-143 to BTS - 2.2 lb./day 000026 SPR000219 EID714136 PROGRAM Confirm levels of FC-143 in process streams and effluents. Perform additional air sampling in "I" production area to insure compliance with 0.5 ppb provisional limit Establish procedure with increased sensitivity for air and blood analyses 6/19/81 7/1/81 9/1/81 00G027 SPR000220 EI D 7 1 4 137 WATER EXTRACTION AT 37C FOR 64 HOURS Yarn ID I and T 9450 Denier I only 9450 Denier I only 8100 Denier I and T Kevlar ppm Extracted from Yarn 180 130 130 180 % Extracted 30 27 37 45 *Methanol 5 to 100 CF~143 on Yarn 000028 SPR000221 EID714138 RATE OF EXTRACTION AT 37C FOR I AND T 9450 DENIER Time in Hours 2 3 4 ppm Extracted From Yarn 185 185 00002^ SPR000222 EID714139 FC-143 AIR SAMPLES TAKEN IN OPERATOR BREATHING ZONE Spinning Machine ID 3 Wash Reel Roll Temperature C 177 371 - 2 Wash Module 193 371 Level PPB V/V ND < 15 ND < 15 ND < 15 ND < 15 MAF/dsa 5/7/81 000030 SPR000223 EID714140 r r''* SM-2 SM-3 PPM CF-143 IN SPINNING AREA Wash Water ^1 4 Washed Yarn 490 ^ 60 AMM/dsa 5/7/81 000031 SPR000224 EID714141 r 1 1 1 943t),; .rr. % CF 143 Remaining on Yarn 000032 SPR000225 EID714142