AR226-2332 y Charles J Zarzecki 04/11/2003 03:49 PM To: cc: Subject: Catherine A Barton/AE/DuPont Wash Works Modeling Cathie, Not as easy as I thought it would be.

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AR226-3174 TRADE SECRET FINAL REPORT Study Title H-24616; In Vitro Mammalian Chromosome Aberration Test in Chinese Hamster Ovary (CHO) Cells Authors Ramadevi Gudi, Ph.D.

3M EnvironmentaLl boratory FinalReport-AnalyticaSltudy Single-DosDeermal Absorption/ToxiciStyudyofT-6051and T-6054 in Rabbits In-VivoStudyReferenceNumber: HWI#6329-133 StudyNumber: AMDT-013195.1 TestSubstance:FC-129 (T-6051andT-6054) Name and AddressofSponsor: 3M SCD Division 367 Grove Street St.Paul,MN 55106 Name and Address of Testing Facility: 3M Environmental Technology & Services 935 Bush Avenue St.Paul,MN 55106 Method Numbers AMDT-M-1-0, AMDT-M-2-0, AMDT-M-4-0, AMDT-M-5-0, AMDT-M-8-0, and Revisions: Thermal Extractionof Fluorideby Means of a Modified Dohrmann DX2000 Organic Halide Analyzer-Liver FluorideMeasurement by Means of an Orion EA940 Expandable Ion Analyzer Extractionof Fluorochemicalsfrom RabbitLiver Analysisof RabbitLiverExtractforFluorochemicalsUsing ElectrospmyMass Spectrometry Analysisof FluorideUsing the SkalarSegmented Flow Analyzer with Ion SelectiveElectrode InitiatioDnate: See attachedprotocol Author:James D.

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3tLtq q ~ Taft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800/ Cincinnati, 01145202-3957 / Tel: 513.381 .2838 / Fax: 513.38t:0205 /www.taftlaw .com Cincinnati / Clevelano / Columbus / Dayton / Indianapolis / Northern Kentucky/ Phoenix/ Beijing ROBERT A.

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