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BIODEGRADATION FFiEs=3 TEST SUBSTANCE Identity: Perfluorooctanesulfonate, Ammonium salt; may also be referred t1o,1a,s2,P2,F3O,3S,4N,H4,,5",5s,a6l,t 6o,r7,F7C,-89,38.,8-(h1e-pOtacdteacnaefsluulcfroon-i,caamcimdo, nium salt, CAS # 29081-56-9) Remarks: The test sample is a mixture of the test substance in isopropanol and water (25% test substance, 20% isopropanol, 55% water).

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Gene Ofte Saas Jon AR 226 _ [02 7 #ff 4 BER. pgol -- 0373 . 3M -ro WR> ULE3= 0 DAoTcTuNm:enStecPtrioocne8ss6i)ngCoCoredirnat(o1r407) 4OU0S1MeESnvtoiferoPtonl,mleuntStiWaoln,PPrroceenitoonnAgsedncTyoxics Contain NO CBI Washingon, D.C. 20460 RFel:soTrSoCchAem8i0clSsuDpopclkeemtenutmalbneircSeEfHorQS-ol1o80n-373uSsEdHaQn-d1C80a-37r4;bEHobQa.sy0e3d81. 0394: SENQ0598-373 "CORRECTIONS o May 15. 2001 Note Dear Docket Coordinator: C3hMemsicaul dbesmcaripniotnnseotiidcteheaabdles.MayA15t. 2c013hoctoehrecdsihdofesspabge owfithact nocree conecions ghlghd nbc) PEHS shboeduesclribded byhe formula: CFSO5 = om PFOSAshoudbedeservedby he formule: CuSONH: 8 38 Pleasecontac Dr.

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AR 226 _ 0784 ACUTE TOXICITY TO INVERTEBRATES (GRASS SHRIMP) IEST~ S~ U ~ BSTAN 0000C 0000E 0000 Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206 or L- 3243. (1-Octanesulfonic acid) (CAS # 2795-39-3).

AR 26 -- 085% MICROBICS MICROTOX TOXICITY TEST IESTSUBSTAN 000C 000E 000 Identity: A mixture containing perfiuorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603EF. (1Octanesulfonic acid) (CAS # 2795-39-3).

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