AR226-2968 FOR DU FONT USE ONLY Du Font HLR 632-91 Study Title Approximate Lethal Dose (ALD) of in Rats Author John W.

AR226-2978 Du Font HLR 477-92 TRADE SECRET Study Title STATIC, ACUTE, 96-HOUR L.C5Q OF H-19,173 TO FATHEAD MINNOWS.

AR226-3393 HASKELL LABORATORY C4, C6 PERFLUORODnODOALKANE 1: EMERaEHCY^B^QSm^'llM : 1 ii:i : :1 EEL: 50 ppb (1-60 minutes) Time Limit: 60 minutes Ceiling Concentration: 50 ppb Emergency Exposure Limits (EELs) are to be used for emergency planning purposes only.

Summary PFOS RabbitTeratology StudyNumbers: 3M T-6295.10,Argus418-012 Compound & Lot: PFOS (Perfluorooctanesulfona-teL)ot 217, 98.4% pure (SMD AnalyticalRequest 53030) AnalyticalDocumentation filedalong with finalreport.Note - same lotas used in two-yearrat PFOS carcinogenicitsytudy(T-6295,Covance 6329-183).

LaboratorRyeportA,nalysiosfFCs inSamplesofChildrenS'esra,May 21,1999 The datasubmitteodn perfluorooctanesulfcoonnattaeinasnalytdiactawhen certaigneneraclonditiohnasvebeenmet.

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity:A mixturecontaininpgerfluorooctanesulfonawthei,ch may alsobe referretdoas PFOS, FC-95,or as a component of FC-603EF. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FC-787 or FC787X. (1-Octanesulfoniacid)(CAS # 2795-39-3).

A P, A a6_ :0 g6 3M ENVIRONMENTAL LABORATORY REPO R T NO .

C orning H azleton liw.

BACK TO MAIN ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE________________________ Identity: Perfluorooctanoic acid, tetrabutylammonium salt; may also be referred to as PFOA tetrabutylammonium salt, tetrabutylammonium perfluorooctanoate, N2803-2, or as a major component of L-13492.

m i-w 5j PROTOCOL DETERMINATION OF THE WATER SOLUBILITY OF PFOS BY THE SHAKE FLASK METHOD OECD Guideline for the Testing of Chemicals, 105 Water Solubility 3M Lab Request No.

ADVANCED BIOANALYTICAL SERVICES, INC.

AfL M 6 - 0 8 8 5 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE______________________________________ Identity: Mixture containing perfluorooctanesulfonate which may also be referred to as PFOS, FC-95, or as a component of FC-3003. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR226-1995 CC: D.

AR226-1996 J o UY >!'