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AR 226 - 07/9 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (SCUD) JESTSUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR 226 _ O/H ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be OrceftearnreesdutlofoansicPFacOiSd,) (FCC-A9S5#, 2o7r9a5s-3a9-c3o)m.ponent of FC-206CE. (1- Remarks: The 3M production lot number was 502.

AR 226 0868 BIODEGRADATION (BOD/COD) EST SUBSTANCE Identity: A mixture containing perfiuorooctanesulfonate, which may also be referredtoas PFOS, FC-95, or as a component of FC-780. (1- Octanesulfonic acid) (CAS # 2795-39-3).

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BACK TO MAIN STABILITY IN WATER (PHOTOLYSIS) TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC-116, FC-126, FC-169, or FC-143.

TOXICITY TO AQUATIC PLANTS (Freshwater Diatom, Navicula pelliculosa) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: Sample obtained from 3M production lot number 217.

BACK TO MAIN Study Title - Characterization Study of PFOS, Primary Standard Test Control Reference #TCR-000 17-046 PHASE: SOLUBILITY OF P F o S IN NATURALSEAWATER AND AN AQUEOUS SOLUTIO'NOF 3.5% SODIUMCHLORIDE Data Requirement 40 CFR 160.105(b) Author Mark E.

BACK TO MAIN Centre Analytical Laboratorks, Inc. 3048 Research Drive State C%?

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Integrated Environmental Assessment and Management -- Volume 14, Number 3--pp. 316-334 316 Received: 26 September 2017 Returned for Revision: 16 January 2018 Accepted: 30 January 2018 Critical Review A Critical Review of the Application of Polymer of Low Concern and Regulatory Criteria to Fluoropolymers Barbara J Henry,*t Joseph P Carlin, t Jon A Hammerschmidt, f Robert C Buck,: L Heidelore Fiedler, Jennifer Seed,// and Oscar Hernandez# tWL Gore & Associates, Elkton, Maryland, USA tChemours Company, Wilmington, Delaware, USA MTM Research Centre School of Science and Technology, Orebro University, Orebro, Sweden //Risk Assessment Consultant, Alexandria, Virginia, USA #Bergeson & Campbell, Washington, DC, USA William Buxton, I ABSTRACT Per- and polyfluoroalkyl substances (PFAS) are a group of fluorinated substances that are in the focus of researchers and regulators due to widespread presence in the environment and biota, including humans, of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA).