0 3M Corporate Toxicology 8 Id Rcgulrtoy Servlm 3 M Center, Building 0220-02-E-02 St.Paul.

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AR26-15/ INDEX TO TSCA SECTION 8(e) DOCKET SUBMISSION BY 3M COMPANY (AUGUST 17, 2004) L nor stupies A.

Toxicological Summary PFOS Dietary Chronic Definitive Reproductive Study: Northern Bobwhite Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4.4,5,5.6.6,7.7,8.8.8-heptadecafluoro, potassium salt.

STUDY TITLE Extraction of Potassium Analysis Perfluorooctanesulfonaie from Red Blood Cells Using HPLC-Electrospray/Mass Spectrometry and Serum for DATA REQUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher ANALYTICAL REPORT DATE June 2, 2003 PERFORMING LABORATORY / TESTING FACILITY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1030 STUDY SPONSOR 3M Environmental Technology and Safety Services Building 23E-09 PO Box 33331 St Paul, MN 55133-3331 PROJECT Exygen Protocol Number: 01P-023-066 Exygen Study Number: 023.066 Total Pages: 98 C0120 Exygen Sudy No. 023.066 GOODLABORATORYPRACTICECOMPLIANCE STATEMENT EPexryfgleunorooctaSnuedsyulfonNautembferrom Re0d23.B0l6o6o,d Celclnsiaendd Ser"uBmxtfuocrtiAonnalysiosfUsinPgotHaPssLiCu:m BSalfeecttyroSseprrvaiyc/eMsa,sswaSspepcetrrfoomremterdy."

AR226-2122 file:///C|/WlNDOWS/TEMP/C-8-FC-143 SP 9-2.81 thru 3-8-92.h<m Test Results Sample Date Range Concentration Range Action Level Industrial Hygiene 9/2/81 3/8/92 100% Sample Ot Sample* Duration Type Employee Name Pers BTO: tOC: 08 TEFLON 704 A/S-FINE POWDER C-8 WEIGH HOOD 4/29/87 34976 331 S Chemical Cone Unit Percent C-8/FC-143 0.148 MPB BTO: LOG: 08 TEFLON 706 FINE POWDER DRYER #3 3/18/91 43734 390 S 3/18/91 43735 390 S 3/18/91 43736 3/18/91 43737 390 S 390 S 3/22/91 43738 390 S 3/22/91 43739 3/22/91 43740 390 S 390 S 3/22/91 43741 3/22/91 43742 3/22/91 43743 3/22/91 43744 390 S 390 S 390 S 390 S BTO: 08 TEFLON C.8/FC-143 >6.0 MPB 1071.4% " C-8/FC-143 >6.0 MPB 1071.4% " C-8/FC-143 C-8/FC-143 0-152 MPB 27.1% >6.0 MPB 1071.4% C-8/FC-143 >6.0 MPB 1071,4% C-8/FC-143 C-8/FC-143 1.693 MPB 302,3% ** >6.0 MPB 1071.4% C-8/FC-143 0.097 MPB 17.3% C-8/FC-143 0.187 MPB 33.4% C-8/FC-143 0.79 MPB t T3 141.1% 0 0 C-8/FC-143 0.134 MPB Oi t^ M 23.9% 0 8/9/2001 5:02 PM EID139462 TesfRssults LOG: 720 INJECTION PUMP AREA 4/29/87 39691 330 S 3/8/92 44892 430 S file:WC|/WlNDOWS/TBMP/C-8-PC-143SP 9-2-81 Biro3-8-.92.htm C-8/FC-143 0.279 MPB 08/FC-143 0-34 MPB 49,8% 60.7% BTO: LOG: 08 TEFLON 728 WAX ROOM - B.162 -1 ST FLOOR 1/28/90 42843 480 S 06/FO-143 >4.0 MPB 714.3% " BTO: LOG: 18 297 9/2/61 TEFLON COPOLYMERS SPECIAL FEP SAMPLES 61628 S 9/2/61 61S29 S 6/2/81 61630 S 9/3/81 61631 S 9/3/81 61632 S 9/3/81 61633 S Thursday, August 09,20011:57:10 PM > C-a/FC-143 Ofl/FC-143 C-S/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 0.11 MPB 19.6% 0.04 MPB 7.1% 0.22 MPB 39.3% 0.92 MPB 164.3% ** 0.37 MPB 66.1% 0.33 MPB 58,9% Page lot 2 lilll 2 of 4 Sample Dt Sample * Duration 12/15/81 61634 Type Employee Name S Pars. chemical C-B/FC-143 Cone Unit Percent 0.03 MPB 5.4% 12/15/81 61635 S 12/15/81 61636 S C-8/FO-143 0.03 MPB 0 5.4% 0 0'> M C-8/FC-143 0.04 MPB to 7.1% 12/1S/81 61637 S 08/FC-143 0.04 MPB 7.1% 8/9/2001 5:02 PM EID139463 "TestResults i. 12/15/81 61638 S 12/15/B1 61639 S ^-.^ 12/15/81 61640 S 12/15/81 61641 S 12/15/61 61642 S 12/1S/81 61643 S 12/15/81 61644 S 12/1S/81 61645 S 12/16/81 61646 $ 12/16/81 61647 S 12/16/81 61648 S 12/16/81 61649 S . ,/ 12/16/81 61650 S 12/16/81 61651 "S 12/16/81 61652 S 12/16/81 61653 S 12/16/81 61654 S 12/16/81 61655 S 12/16/81 61656 S 12/16/61 61657 S BTO: 18 LOC: 299 TE;FLON@ COPOLYMERS #1 OVEN EXHAUST 9/28/81 61612 S file:/;'/CI/WINDOWS/TEMP/C-8-FC- 143 SP 9-2-81 thru 3-8-92 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC.143 C-8/FC-143 C-fl/FC-143 G-8/FC-143 C-6/FC-143 C-8/FC-143 C-B/FC-143 C-8/FC-143 C.8/F&.143 C-B/FC-143 C-8/FC-143 C-B/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 0.03 MPB 5.4% 0.03 MPB 5.4% 0.07 MPB 12.5% 0.03 MPB 5.4% 0.22 MPB 39.3% 0.04 MPB 7.1% 0.04 MPB 7.1% 0.04 MPB 7.1% 0.33 MPB 58.9% 0.07 MPB 12.5% 0.15 MP8 26.8% 0.07 MPB 12.5% 0.04 MPB 7.1% 0.04 MPB 7.1% 0.48 MPB 85.7% 0.04 MPB 7.1% 0.07 MPB 12.5% 0.15 MPB 26,8% 0.63 MPB 112.5% " 0.29 MPB 51.8% > 0 10 1-J >s 4.9 MPB 875.0% 8/9/2001 5:02 PM EID139464 TeslRssitHs 9/29/61 61613 rile:///C|/WINDOWS/TEMP/C-8-FC-143 SP 9-2-81 thru 3-8-92-htro C-8/FC-143 19.4 MPB 3464.3% Thursday, August 09.2001 1:57:10 PM Page 2 Of 2 4 of 4 S a 8/9/2001 5:02 PM EID139465

Proceedings of WTC2005 World Tribology Congress III September 12-16, 2005, Washington, D.C., USA WTC2005-63881 NANO-TRIBOLOGY OF A POLYTETRAFLUOROETHYLENE TRANSFER FILMS USING MOLECULAR DYNAMICS SIMULATION AND MICROTRIBOMETRY Inkook Jang*, Pamela L.

ELSEV ER Wear 266 (2009) 632-638 Contents lists available at ScienceDirect Wear journal homepage: www.elsevier.com/locate/wear A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions Chunxia Li a' b' *, Fengyuan Yana a State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China b Graduate School of Chinese Academy of Sciences, Beijing 100864, PR China ARTICLE INFO Article history: Received 31 August 2007 Received in revised form 23 June 2008 Accepted 6 August 2008 Available online 23 September 2008 Keywords: PTFE PI Simulated sand-dust Tribolayer ABSTRACT The wear behavior of polytetrafluoroethylene (PTFE) and polyimide (PI) has been comparatively evaluated under dry sliding and simulated sand-dust conditions.

AR226-2524 ro DuPont Engineering Bariey Mill Plaza-BIdg. 27 4417 Lancaster Pike Wilmington, DE 19805 November 8,2004 DavidP.Waudns West Virginia Department of Environmental Protection J^-'^^Jj Division of Water Resources 1201 Greenbrier Street NOV 1C 2004 Charleston, West Virginia 25311-1088 3Q04 Residential Sampling Results, West Virginia and Ohio BY:_____...

AR226-3150 TRADE SECRET Study Tide H-23960: Local Lymph Node Assay (LLNA) Laboratory Project ID: DuPont-4199 AUTHOR: Gregory S.

p. 1 36/ C 70840 Federal Register/Vol. 70, No . 225/Wednesday, November 23, 2005/Notice s List of Subjects these proposals should be submitted to Environmental protection, Pesticides the UNECE Secretariat for the POPs and pest.

tsi enters ------------Grpaee{emesis 226-36AR4R8AE _ 364-2 INT] AT #1 le Water Sam) STUDY TITLE AnalysisofPerfluorooctanoic Acid (PFOA), Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctancsulfonate (PFOS) in Water, Soil, Sediment, Fish, and Clams Using LC/MS/MS for the 3M Cottage Grove Monitoring Program DRAETAQUIREMENTS EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE `Weston Solutions, Inc. 1400 Weston Way `West Chester, PA 19380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE - May 19, 2005 PERFORMING LABORATORY `Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STU3DMYCosmppoannsyor 3M Building 0236-01-B-10 PShto.nPea:ul6,31M-N7353-56134744 PROJECT Protocol Number: P0001400 Exygen Study Number: P0001400 "Total Pages: 110 FABRA 000024 inRptArorSa ages ayn Sy No:PRIA `GOOD LABORATORY PRACTICE COMPLIANCE STATEMENT Exygen Study Number P0001400, entitled "Analysis of Perfluorooctanoic Acid (PFOA), Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate LC/MS/MS for the 3M (PFOS) Cottage in Water Grove , M Soil, onito r Sediment, Fish, ing Program," and Clams Us conducted for ing 3M Company, is being performed in compliance with EPA TSCA Good Laboratory Practice `Standards 40 CFR 792by Exygen Research.

p. 1 P. 1 TSCA Document Processing Center July 28, 2006 Attn : Section 8(e)/FYI Page 4 of 5 Attachment 1 AR Z26 _ -37--34 Acronym code for Tables 1 and 2 In Tables 1 and 2, the following acronyms are used: acronym weanmg CW DuPont Chambers Works facility in De water, New Jersey FW DuPont Fayetteville Works facility in Fayetteville, North Carolina WW DuPont Washington Works facili in Parkersburg, West Virginia PFBA Perfluorobutanoic acid PFPeA Perfluoropentanoic acid PFHxA Perfluorohexanoic acid PFHpA Perfluoroh tanoic acid PFOA Perfluorooctanoic acid PFNA Perfluorononanoic acid PFDA Perfluorodecanoic acid PFUnA Perfluoroundecanoic acid PFDoA Perfluorododec anoic acid PFBS Perfluorobutane sulfonate PFHxS Perfluorohexane sulfonate PFOS Perfluorooctane sulfonate PFOSA Perfluorooctane sulfonamide p. 2 p. 7 N N O m N m N O N Q p ili a N vaavvvvvvaavv :g :e j (p F.+ V J O_ { fl 6 :2 v 13 vc~i 1 ~~ w n4~ ~ O~~Oa~ggNOCCaQ~~'J ~ ?

Taft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 / Cincinnati, OH 45202-3957/ Tel : 513 .381 .2838/ Fax : 513 .381 .0_205 /www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing ROBERT A.