AR226-2402 INTEROFFICE MEMORANDUM Dates From?

ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium salt;may alsobe referredto as PFOA ammonium saltA,mmonium perfluorooctanoateF,C116, FC-126, FC-169, or FC-143.

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component of FC-185F. (1Octanesulfonicacid)(CAS # 2795-39-3) Remarks: The 3M productionlotnumber was 1-2303.

BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FC-3041. (1Octanesulfoniaccid)(CAS # 2795-39-3).

A CRIaTEeS BmeT ARI6-0257 TWO YEAR ORAL (DIET) TOXICITY / CARCINOGENICITY STUDY OF FLUOROCHEMICAL FM-3924 IN RATS (RIKER Experiment No. 0281CR0012) Conducted During April, 1981 - - May, 1983 tue 101 8 RIKER Laboratories, Inc. / 3M Company St.

AR226-03%8 ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: Perfluorodecanesulfonate, ammonium salt; may also be referred to as PFDS, FC-121-X, or 3M Sample E2112 and E2566-1. (1Decanesulfonic acid, 1,122,334,4,556,6,7,7,8,8,9,9,10,10,10-heneicosafluoro-, ammonium salt, CAS # 67906-42-7) pRreompaarnkosl,: 1T-e(s1,t1s-daimmpeltheyliestahomxiyx)t.ureThoifstmhiextteusrtescuobnsttaainncseapinprwoaxtiemraatneldy22-226% test substance, 33-37% propanol, 1-(1,1-dimethylethoxy), 0.5-1.5% perfluorononanesulfonate, ammonium salt and 38-42% water).

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AR6-0512 ACUTE TOXICITY TO AQUATIC INVERTABRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to `1a1s6P, FFOC-A12a6m,moFCn-i1u69m,saolrt,FCA-m1m4o3.ni(uOmctpaenrofilcuoarcoiod,ctanoate, FCpentadecafluoro-, ammonium salt, CAS # 3825-26-1) Remarks: 3M production lot number 350.

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AR226-2773 ^ ^-^ Bio/dynamicsInc.

BIODEGRADATION (OECD 301E) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonawthei,ch may alsobe referretdoas PFOS, FC-95,oras a component ofFC-203. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity: rPeefrefrlrueodrotoocatsanPesFuOfSfoAnAy,laFmiCd-o1(2e8thoyrl)aascetthaetem;ajmoarycaolmspoobneent of FC-127, FC-129, FC-109, or FC-109-X.

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