POLYMER PRODUCTS DEPARTMENT MANUFACTURING DIVISION AR226-2012 CC: R.

AR226-2038 "Roger J.

AR226-2407 INTEROFFICE MEMORANDUM Date: From; Dept i Tel No 13-Mar-1990 06:26pm Nilliam E.

Iw P&evitkiFc&titieiusithmpiiaia, anti oe rainbow 1rou.t> Om>rhynchits*$<&$$>t& pm tfm oa-gQiag s o t e ^^dsb^isrogftt, l^ p ftsp tit u tm tte w ii& v & d w 2--p^fl5arcJyl thajfofo acifi, 25-texMecSw^cKS-^eKRiaOTC acid, nda+perfluocodacanoc aei, T he chufoeetan, )apmta magno w as generally the: m ostaeosifiv especies tested followed byttegreeiisiga, m uM trotm erieik st sm itm , Raabew fimt Wbn: gtfi&fci less Sve tothfiaCtelomef ufis fesa file other tost species.

AetZC>-ICC5 INTEROFFICE MENOBANDOll Date: Ft: Dept: Tel Bo: 02-Dec-1996 11:16am Rik Brandenburg BRANDERA AT A1 AT EOIS2 FLPR (Fluoroproducts - Teflon) 31-78-6301648 TO: See Below Subject: RE: December C-8 PACE Team Meetings Greg, On Friday, December 6 I'll participate in a meeting in Geneva with Hoechst and ICI about analytical methods to determine migration of C-8 from PTFE coated pans into food simulants.

Summary N-EtFOSE Rabbit Teratology Study Numbers: 3M T-6316.8, Argus 418-010 Compound & Lot: N-EtFOSE (N-Ethyl-Perfluoroocyanesulfonamido Ethanol) - Lot FM3923 (30035, 30037, 30039) 98.2% pure (SMD Analytical Request 52489) Analytical Documentation filed along with final report.

PFOS: A 48-HOUR STATIC ACUTE TOXICITY TEST "WITH THE CLADOCERAN (Daphnia magna) FINAL REPORT `WILDLIFE INTERNATIONAL LTD.

@HAZLETON reTy"N \ 016% ) J Z NS i ANALYSIS OF T-5794 IN A CELL PROLIFERATION ASSAY IN RAT LIVER CELLS AR26-0302 [EINAL REPORT AUTHOR Maria A.

Al226-/548 Toxicological Summary Pros Dietary Acute Northern Bobwhite Study `Test Substance: Perfluorooctanesulfonate (PFOS) Structure: Remarks: METHODS poaium sah CASH 2795.335 |-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8.8,8-heptadecafluoro-, Trhedtesutndsuebrsatamnbceitis caownhdiitoenspoawndderur(GM wlats#o2r1g7i)nallTyhedrsammpilnedwa1s pleas be 90.49% byutp LCMS, 'H-HMR, riploiglon ""F-NMR and elemental analyses dCeotnecremninaeidontso ibnehi8s6s.u9%m.marTyhaersnvoamsienaolnatned 8m5e3as%urpeudrtydiveatatrey PFOS vTahleueis nbafsedphoanseherep0o.rt40wa%spourrgtiynaelsltyractoimopnletTeheinre2po0r0t0,waasndrrieepodrted 3008 to rflt the subsent revision. in ample purty This Toxicological Summary reflects these changes as well as including results from all of the associated reports of analyses of tissues collected during the in-life phase.

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AR226-2449 tiT"'/^ HEERC AT A1 AT EU01S2 r'1" '" 09/17/97 03:57 PM 3i To: cc: Subject: BRANDERA AT A1 AT EU01S2 .

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PathologAyssociateisnfernational A Company ofScienceApplicationisntemationCaolrporation An &rp"v*.O~ CopwV PATHOLOGY REPORT (ANCILLARY STUDY) ELECTRON MICROSCOPIC EVALUA17ION OF LIVER IN CYNOMOLGUS MONKEYS 26-WEEK CAPSULE TOMCrrY STUDY WITH PERFLUOROOCTANE SUIXONIC ACED POTASSIUM SALT (PFOS,-,T-6295I)N CYNOMOLGUS MONKEYS CLIENT STUDY'NUMBER 6329-223 PAI STUDY NUM33ER EM 99.76 Prepared by: James B.

3M ModbW Departfnent L%cNdno Huft Physics IndustW Hygiene ToxkmiM 3M CerterBldg.220-2E-02 SL PaulM,N 55144-1000 612f7331110 Analyticaanld ResearcPhroperti-e3sM IndustriHsydgienelabomtory January1993 Scope Thisisa methodforthedeterminatoifoNn-EthyPlerfluorooctanesulfonamide in air.