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ACTIVATED SLUDGE RESPIRATION INHIBITION TEST SUBSTANCE Identity: Perfluorooctanoic add, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC116, FC-126, FC-169, orFC-143.

M &SL& - 0 7 lf-lh TO XIC ITY TO AQUATIC PLANTS TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, 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, CAS # 2795-39-3) Rem arks: The 3M production lot number was not noted.

M D fil Acute Ocular Irritation Test with T-3421 in Albino Rabbits 'i-- \ Experiment No.: 0883EB028 6 Conducted At: Safety Evaluation Laboratory Riker Laboratories, Inc.

% AR706 -00/7 JEFFERSON MEDICAL COLLEGE of THOMAS JEFFERSON UNIVERSITY Daniel Baugh Institute of Anatomy Department of Anatomy Office of the Director and Chairman Philadelphia, 19107 (215) 928-7820 November 12, 1982 Dr.

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ATTACHMENT TO LETTER OF 2/9/05 3M FLUOROCHEMICAL SUBMISSION BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE PFOA Perfluorooctanoic Acid 1.