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M <256 _ 0 9 1 3 MICROBIOS MICROTOX TO XICITY TEST TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FX-3103. (1Octanesulfonic acid) (CAS # 2795-39-3).

BACK TO MAIN BIODEGRADATION (BOD/COD) 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, FC-109-X, FC-4351, or L-6778.

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) 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.

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I FOR DU PONT USE ONLY AR226-2934 Du Pont HLR 624-87 Study T it le In h a la tio n Approximate Lethal Concentration of Author Rudolph V a le n tin e Study Completed On November 10, 1987 Performing Laboratory E .

Internal Correspondence de: M.

A fi. & Z 6 _ 0 7 t j - 2 A C U T E T O X IC IT Y TO FISH (M U M M ICH O G ) T E S T S U B S T A N C E _____________________________________________ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFO S, FC-95, or as a component of FC-203C and L-5440. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, C A S # 2795-39-3) Rem arks: The 3M production lot number w as not noted.

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Internal Correspondence To: From: Subject: Date: COMMERCIAL CHEMICALS ANALYTICAL REPORT #346 E.

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A R X & - 0 5 (0 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC116, FC-126, FC-169, or FC-143.

MSJLC _ i b z s 4 0 _, THE WALL STREET JOURNAL," Wednesday.

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