T C) C-isYi C)Y-al -,@.Angef 4,iider St.

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FC-206CE.

MICROBICS MICROTOXO TOXICITY TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, or as a component of FC-602. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICTTY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, oras a component ofFC-3041. (1Octanesulfoniaccid)(CAS # 2795-39-3).

.. 17amy Ty Acute oral Toxici. ty Screen NNeo oR LsoDa T of with T-20650oC in Albino Rats apes int: No.

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a-- In : k E. 1. ou PONT ofFoNceiwous & Company WILMINGTON, DELAWARE 19858 cer BAAdoBnan Trea =C3 E C29 Frael.

Submitted to: BIOSEARCH, INC.

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FC-185F. (1Octanesulfonicacid)(CAS # 2795-39-3) Remarks: The 3M productionlotnumber was 1-2303.

1 force eked "1i SSuiFgng M27o0s35c0a5 S3S16Cae1n0t0r0 n TWO YEAR ORAL (DIET) TOXICITY / CARCINOGENICITY + STUDY OF FLUOROCHEMICAL FM-3924 IN RATS 1 (RIKER Experinent No. 0281CRO012) i7 Conducted During April, 1981 - - May, 1983 1 Volune 4 of 1 RIKER Laboratories, Inc. / 3M Company St.

am E.

FOR DU POST USE ONLY AR226-2928 Approximate Lethal Concentration by Inhalation (ALC) of Haskell Laboratory Report No. 279-85 Haskell E.

AR226-2401 A INTEROFFICE MEMORANDW TOt ANTHONY J.

FOR DU FONT USE ONLY AR226-2792 Subchrontc Inhalation Toxicjty of Haskel!

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:Perfluorooctanesulfonyflluoridem;ay also be referredto as POSF, or FX-8. (1-Octanesulfonylfluoride, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecaflCuAoSro-#, 30735-7).