CHRONIC TOXICITY TO FISH TEST SUB TANCE Identity:N-ethylperfluorooctasnuelfonamidoethanolm;ay also be referredto as N-ETFOSE Alcoholor FM-3422. (1-Octanesulfonamide,N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-, CAS # 1691-99-2) Remarks: Materialisan off-whitew,axy solidof uncharacterizedpurity.The laboratoryconductingthe study refersto N-ETFOSE Alcoholas "78.01".

InternatioRneaslearcahndDevelopmenCtorporation SPONSOR: TEST MATERIAL: SUBJECT: 3M Company Fluorad Flucrochemical FC-143 Acute Oral Toxicity (LD Study in Rats. 50 Wilson P Dean, B.A.

CorporatOeccupationMaeldicine 3M CenterB,uildin2g20-3W-05 St.PaulM,N 55144-1000 6517374230Telephone 6517339066Fax 9.PhysiciaPnlantSummary ReportsRegardingMedicalSurveillanPcreogram atCottageGrove (1978-1991) Followinrgeportosfthefindinogforganifcluorinienserasamplesa,fluorochemical medical surveillancperogram began at3M's manufacturingfacilitiiensthemid 1970's.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: rNe-fmeertrheydltpoerafsluNo-rMooecFtOanSeEsAullcfoohnoalm,idFoCe-t7h9a0n,olo;r may also be FM-3925.

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AR 836 -- 0789 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) JIEST ~~ SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206 or L3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).

HASKELL LABORATORY AR226-3382 Common Name: Telomer B Citrate Urethane (TBCU) Chemical Name: Poly(difluoromethylene), alpha-fluoro-omega-(2-hydroxyethyl)-, ester with 2,15-bis(carboxymethyl)-4,13-dioxo-3,14-dioxa-5,12-diazahexadecane1,2,15,16-tetracarboxylic acid CAS Registry No.: 65530-58-7 Chemical Structure: Physical Properties: o II Rf--CH^--CH^--O-C o CH.2, o II I II Rf-CH^--CH^--O-C-C-O-C-MH-CCH^2)73 "2 R.

BIODEGRADATION TEST SUBSTANCE Identity:N-methylperfluorooctanseulfonamidoethanolm;ay also be referredtoas N-MEFOSE Alcohol,FC-790, or FM-3925. (1Octanesulfonamide,N-methyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-N-(2-hydroxyethyClA)S-,# 24448-09-7) Remarks: Materialisan off-whitew,axy solid.Sample purityand lot number were not recorded.

ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) TEST SUBSTANCE Identity:MixturecontainingPerfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component ofFC-206A. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, oras a component of FC-783. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO INVERTEBRATES TEST SUBSTANCE (GRASS SHRIMP) Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, oras a component ofFC-206 or L3243. (1-Octanesulfoniacid)(CAS # 2795-39-3).

AR 226 _ 0763 TOXICITY TO AQUATIC PLANTS IESTsuBsTANCE 0000 Identity: MreifxetrurreedctoonatasiPniFnOgSp,erFfCl-u9o5ro,oocrtaansesaulcfoomnaptoen,ewnhtiocfhFmCa-y20a3lsCoF-bXe or FC-203CF. (1-Octanesulfonic acid) (CAS # 2795-39-3).

AR 226 = 0875 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) JTESTSU~ B~ S~ TANC 000E Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-7808B. (1- Octanesulfonic acid) (CAS # 2795-39-3).

CorporatHeealthPhysics 3M Center2,20-2E-02 CorporatOeccupationMaeldicine PO Box 33220 CorporatPeroductResponsibility St.PaidM,N 55133-3220 CorporatTeoxicology 6517331110 3M MedicalDepartment SerumFluorochemictarlendsofout-of-counrteysidenitnsCLUE 1(1974a)nd CLUE ][([1989e)pidemiologiincvestigations.

SUMMARY FOR WORK PERFORMED FOR THE GERMAN GOVERNMENT AGENCY FOR MILITARY TECHNOLOGY AND PROCUREMENT ON FIRE EXTINGUISHING FOAM COMPOUNDS FROM MULTIPLE COMPANIES TEST SUBSTANCE Identity:A mixturecontainingPerfluorooctanesulfonatweh,ich may also be referredto as PFOS, FC-95, or as a component ofFC-200. (1-Octanesulfoniaccid)(CAS # 2795-39-3).