3M EnvironmentaLlaboratory FinalReport-AnalyticaSltudy Single-DosDeermalAbsorption/ToxiciStyudyofT-6052 inRabbits In-VivoStudyReferenceNumber: HWI#6329-135 StudyNumber: AMDT-020795.1 TestSubstance:FC-120(T-6052) Name and AddressofSponsor: 3M SCD Division 367 Grove Street St.Pau'1,MN 55106 Name and Address of TestingFacility: 3M Environmental Technology & Services 935 Bush Avenue St.Paul,MN 55106 Method Numbers AMDT-M-1-0, AMDT-M-2-0, AMDT-M4-0, AMDT-M-5-0, AMDT-M-8-0, AMDT-M-14-0, and Revisions: Thermal Extractionof Fluorideby Means of a Modified Dohrrnann DX2000 OrganicHalideAnalyzer-Liver FluorideMeasurement by Means of an Orion EA940 Expandable Ion Analyzer Extractionof Fluorochemicalsfrom RabbitLiver Analysisof RabbitLiverExtractforFluorochemicalsUsing ElectrosprayMass Spectrometry Analysisof FluorideUsing the SkalarSegmented Flow Analyzer with Ion SelectiveElectrode Thermal Extractionof Fluorideby Means of a Modified Dohrmann DX2000 Organic HalideAnalyzer-Serum InitiationDate: See attachedprotocol Author: James D.

SummaryN-ETFOSERabbitTeratology StudyNumbers:3M T-6316.8A,rgus418-010 Compound & Lot: N-ETFOSE (N-Ethyl-PerfluoroocyanesulfonaEmtihdaonol-) LotFM3923 (30035, 30037,30039)98.2% pure(SNM AnalyticaRlequest52489) AnalyticaDlocumentationfiledalongwith finalreport.Note - same lotasused intwo-yearratcarcinogenicisttyudy(T-6316,Covance 6329-212).

BIODEGRADATION TEST SUBSTANCE Identity:Perfluorooctanesulfonylamido(ethyl)acetmaatye;alsobe referredtoas PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-1 09,or FC-109-X.

BIODEGRADATION TEST SUBSTANCE Identity:[2-(N-Ethylperfluorooctanesulfonameitdhoy)lacrylatem;ay alsobe referredtoas Bl 228, D-1, ETFOSEA, or FX-13.(2-Propenoicacid,2[ethyl[heptadecafluorooctyl)sulfonyl]aminoe]settehry,ClAS # 423-825) Remarks: Materialisan amber solid.Sample puritynot recorded.3M lot number 13.

InternCaolrrespondence To:P.

InternaClorrespondence -tt To.D.

JEFFERSON MEDICAL COLLEGE of TI-iO.

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST (MITITEST) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component ofFC-603EF. (1Octanesulfonicacid)(CAS # 2795-39-3).

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ichmay alsobe referredtoas PFOS, FC-95, oras a component ofFX-3104. (1Octanesulfoniaccid)(CAS # 2795-39-3).

InternatioRneaslearcahndDevelopmenCtorporation SPONSOR: I"-7STXATERT-U: SUBJECT: 3M Company FM-3422 Acute Oral Toxicity (LD Study in Rats. 50 Wilson P.

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; ARDE-2 120 CORNING Hazleton EET MUTAGENICITY TEST ON T-6295 1 MAY 27 1996 y Co, My IN AN IN VIVO MOUSE MICRONUCLEUS ASSAY "<U/COLS EINALREPORT AUTHOR Hemalatha Murli, Ph.D.