AR226-2853 Material ted Copies to: E I. du Font de Nemours and Company Haskell Labi .atory for Toxicology and Industrial Medicine HASKELL LABORATORY REPORT NO. 960-76 MR Haskell No.

A R . 2 6 - O S Z Z ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) TEST SUBSTANCE___________________________________________ ____ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-780B. (1Octanesulfonic acid) (CAS # 2795-39-3).

AP STUDY SUMMARY FOR W ORK PERFORMED DURING 1977-1979 TEST SUBSTANCE_____________________________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonicacid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Rem arks field: The test substance is a white powder of uncharacterized purity.

AkH.3.& - 0273 ACUTE TOXICITY TO FISH (MUMMICHOG) TEST SUBSTANCE________________________________________ ___ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-780B. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR226-2842 9n d iu U ia B I O - T E S T i 1810 FRONTAGE ROAD NORTHBROOK, ILLINOIS 60062 Dnc.

AR RR6 - 0768 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE________________________________________________ Identity: A 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).

AR5.U-OH55 BIOSEARCH, INC. p.o. bo* 8598 Philadelphia, Pennsylvania 19101 telephone: (215) 848-4499 Submitted to: Material: Sample Received: Date of Report: Test: Object of Test: Procedure: ResuIts: Conclusion : 3M Company 3M Center St.

Experiment No.: Conducted At: Dates Conducted: Conducted By: Acute Oral Toxicity Screen with T-2574COC in Albino Rats A M ifro ttH "r e c e i v e d OCT - 3 1979 3M TOXICOLOGY 0979AR0037 Safety Evaluation Laboratory Riker Laboratories, Inc., St.

Conducted at: During: Conducted by: Report by: Reviewed by: Riker Laboratories, Inc.Subsidiary of 3H St.

WARF INSTITUTE, INC.

flR f i - O IM I A International Research and Development Corporation SPONSOR: COMPOUND: SUBJECT: 3M Company Fluorad Fluorochemical FC-143 Ninety Day Subacute Rat Toxicity Study.

AR312G-03MH WATER SOLUBILITY TEST SUBSTANCE Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol or 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: Material is an off-white, waxy solid of uncharacterized purity.

SOIL ADSORPTION (METHOD DEVELOPMENT / PILOT STUDIES) TEST SUBSTANCE_____________________________________________________ Identity: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE Alcohol or FM-3422. (1-Octanesulfonamlde, N-ethyl1,1,2I2,3,3,4,4,5I5,6I6 I7I7 >8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-I CAS #1691-99-2) Remarks: Material is an off-white, waxy solid of uncharacterized purity.

/)R2K-03<($ BIODEGRADATION (WARBURG) TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, or FC-109-X.

Interoffice Correspondence c :H .E .