plN - %w is^ i*T cc: 0.

ARX-OW BIODEGRADATION 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, orFC-109-X.

AR226-2065 WASHINGTON WORKS INDUSTRIAL HYGIENE REPORT FROM 1-Jan-I988 TO 3i-0ct-199i 31-0cfc-199i Page 1 AREA; FLUOROCARBONS - HOMOPOLYMERS CHEMICAL SAMPLE LOCATION *;CONTROL C-S/FC-143 104 P/S-FINE POWDER AUTOCLAVE OPER *: DATE!

ES-3606 FOR DU'PONT OSE ONLY HASKELL LABORATORY AR226-2913 II B.

THE NEW YORK TIMES,:.

BIODEGRADATION TEST SUBSTANCE Identity: Perfluorooctylsulfonate, didecyldimethylammonium salt; also be referred to as Fluoroalkyl ammonium derivative.

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PERSONAL AMD CONFIDENTIAL AR226-1981 CC: R.

F-xperiment No.: Conducted At: Dates Conducted: Conducted By: Reviewed By: Acute Oral Toxicity Screen with T-3421 in Albino Rats 0883A.RO287 Safety Evaluation Laboratory Riker Laboratories, Inc.

MICROTOX@ TOXICITY TEST TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium salt;may alsobe referredto as PFOA ammonium salt,Ammonium perfluorooctanoateF,C116,FC-126,FC-169,orFC-143.

or ` A WESTON WAY AON |E WEST CHESTER, PA, 19380 ee PHONE: (215) 692-3030 PN oe an TE LEX: 83-5348 20 ay 1983 20 May 1983 612-728 2r5/s M3EvEFerernur..iv1dsiatrJsiooocnmhnhgnmmeenn25P..it1aa-ll2pP0ii-lEBn0nnne5egoyyiinneeeerriinngg SSuuppeerrvviissoorr SPoretiomn ,35330sana 3-M Building 2 I-2W-05 P.O.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: N-Ethylperfluorooctanesulfonamide; may also be referred to as U1464, EtFOSA, EtPOSA, F-6309, or FX-12. (1Octanesulfonamide, 1,1,2.2,3,3,4.4,6,5.6,6.7.7.8,8.8heptadecafluoro-N-ethyl-, CAS # 4151-50-2) Remarks: Material is a white solid, lot 505 (cc842-3, F6309, L-1089).

y* Polymer Products Department Research and Development Division Experimental Station ' AR226-2387 cet S C Croft - 256 M- A* Kaiser - 256 T.

FOR DU PONT USE ONLY AR226-2792 Subchronic Inhalation Toxicity of iln Rats Haskell Laboratory Report No. 273-85 MR No E.

FOR DU PONT USE ONLY AR226-2937 Du Pont HLR 784-88 .