AH SUL 6 - ACUTE TO XIC ITY TO FISH (FATHEAD M INNOW ) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC -3031, (1Octanesulfonic add) (CAS # 2795-39-3).

S m - MOO- 3 73 R n C 0 5 71 BIOACCUMULATION TEST SUBSTANCE Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol or FM-3422. (1-Octanesulfonamide, N-ethyl1,1t2,2,3,3,4,4,5,5,6)6,7,7I8 l8,8-heptadecafluoro-N-(2-hydroxyethyl)-, CAS #1691-99-2) Remarks: Material is an off-white, waxy solid of uncharacterized purity.

AR226-2868 Copies to: E. 1. du Font de N e m o r s and Company Haskell Laboratory for Toxicology and Industrial Medicine HASKELL LABORATORY REPORT HO. 58-78 Material Tested -J Haskell Ho. 11,890 Sample Ready for Testing 12/2/77 3Other Codes j - Material Submitted bv "^Textile Fibers Department Seaford, Delaware 96-HOUR LC502 TO ULUEGILL SUKFISK Procedure: The test material, in original form, was introduced into all-glass exposure vessels and diluted with laboratory supply TOter fd^yleld tKedesiredcohcentrations in a 7.5 final volume.

# AR226-2872 Copies to: E.

Corporate Occupational Medicine 3M Center, Building 220-3W-05 St.

A im & -0 0 0 7 2 14 Absorption of FC-95- C xn Rats After a Single Oral Dose October 26, 1979 Conducted at: During: Conducted by: Report by: Reviewed by: Riker Laboratories, Inc.

ARZIG-ooSI Ecotoxicity Elements T itle ; 2- PFO S: A 96-H our Static A cute Toxicity T est with the Fathead Minnow (P im e ph a le s p ro m e la s ) PFO S: A 96-H o ur Toxicity T est with the Freshw ater Alga (S elenastrum capricom utum ) P FO S : A 48 -H o u r Static A cute Toxicity T est with the Cladoceran (.D a p h n ia m a g n a ) Laboratory or A uthor Wildlife International, Ltd.

fm-oi% BIODEGRADATION TEST SUBSTANCE Identity: Perfluorooctanesulfonate, Ammonium salt; may also be referred to as PFOS NH4+salt or FC-93. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, ammonium salt, CAS #29081-56-9) Remarks: The test sample is a mixture of the test substance in isopropanol and water (25% test substance, 20% isopropanol, 55% water).

AR2X-05X BIOSEARCH, INC. p.o. box 8598 Philadelphia, Pennsylvania 19101 t el ephone: (215) 848-4499 Submitted to: Materi al : Sample Received: Date o f Report: T e s t: Object of Test: Procedure: R e s u lts : Conclus io n: 3M Company 3M Center S t.

Attain-ooGI BIOACCUMULATION (ANALYTICAL ONLY) TEST SUBSTANCE______________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonicadd, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

4 /U 6 - 0 6 2 ?

M za.6 - 0 7 9 7 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE___________________________________________ Identity: Mixture containing Perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206A. (1Octanesulfonic acid) (CAS # 2795-39-3).

CHRONIC TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as 78.03, PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC-116, FC-126, FC-169, or FC-143.

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AR226-2855 HASKELL LABORATORY RAYMOND L.