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BACK TO MAIN 3M Comments Submitted to the EPA Science Advisory Board Perfluorooctanoic Acid Human Health Risk Assessment Review Panel (PFOA Review Panel) Click on Study Title to View Report John A.

310 Form -8747-11-A TECHNICAL REPORT SUMMARY TO: TECH N ICA L COMMUNICATIONS CEN TER - 201-2CN (Im portant -- I f report Is printed on both sides o f paper, send two copies to TC C .i Olvition .

/IR -0 3 S 5 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorodecanesulfonate, ammonium salt; may also be referred to as PFDS, FC-120, or 3M Sample J2905-1. (1-Decanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10heneicosafluoro-, ammonium salt, CAS # 67906-42-7) Remarks: Test sample is a mixture of the test substance in water and butyl cellosolve (approximately 25% test substance, 37.5% butyl cellosolve and 37.5% water).

<gHQ - oy-06. 373 {oz>o g/l7g,a z ) _________________ ________________________________________________ &o A R Z O fc -a W Analytical Laboratory Report ON THE Determination of the Presence and Concentration of Perfluorooctanesulfonate (PFOS) (CAS Number: 2759-39-3) in the Serum of Sprague-Dawley Rats Exposed to Potassium Perfluorooctanesulfonate via Gavage Laboratory Report No.

Telom er Research Program AR226-1890 Report Title: (14C)-8-2 Telomer B Alcohol: Adsorption/Desorption using a Batch Equilibrium Method Report Author: Sharon Swales, Ph.D., Covance Laboratories Contractor: Covance Laboratories Ltd Otley Road, Harrogate North Yorkshire HG3 1PY ENGLAND RECEIVED OPPT NCIC 2004 DEC 22 AM 11:20 Study Dates: Study Initiation Date (Protocol Signed): 13-March-2003 Study Completion Date (Final Report Issued): 16-July 2004 Study Objective The adsorption/desorption characteristics of (14C)-8-2 TBA were examined in four soil types and one sediment.

AR226-2001 To: R.D.

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