Document 6ZBxp1Nq3nkv14x4Yvo0gkk9

AR 226 - 0779 EFFECT OF DEGRADATION ON FOAMING JESTsuBsTANCE 0000000000000 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). Remarks: The 3M production lot numberwas not noted. The test sample is FC-206. Current information indicates it is a mixture of 0.67% PFOS, 17.5% diethylene glycol butyl ether, 78.91% water, 1.33% Sultone foamer, 1% sodium octyl sulfate, 0.04% sodium lauryl sulfate, 0.5% polyoxyethylene `monooctylphenyl ether, and 0.05% benzotriazole. The following summary applies to a mixture with incompletely characterized concentrations of impurities. Data does not accurately reflect degradation potential of the fluorochemical component of the test sample. mgETHOO 00000 Method: Experiment in conjunction with Modified OECD Screening Test GLP: No Year Completed: 1980 Analytical monitoring: Foam height vs. time Statistical methods: Results were determined by calculation of the foam height after shaking. Test organism source: Not given. Test condition: Dilution water: Nutrient solution Reference and test solution preparation: OECD test culture collected from the end of the 28-day Modified OECD screening test. `Samples diluted with nutrient solution to same concentrations as used - in beginning of 28-day Modified OECD Screening test. Vials capped and shaken vigorously by hand for 30 seconds. Test vessels: #4 glass vials (4-1/2 in.). Number of concentrations: Sample from the 28-day biodegradation test, freshly prepared solutions of identical concentration, and blank. Temperature: Not given. Total suspended solids and pH on dayoftesting: Not given. oo Element Basis: Measured foam height R0 ESULTS 0000 Nominal concentrations: Blank, freshiy-prepared solution, solution from 28 day test. Test material concentration of each at 425 mg/L. 001449 Element values: Foam height (30 sec.) = 20 mm (fresh solution) Foam height (30 sec.) = 7 mm (solution from biodeg. test) Foam height (30 sec.) = 15 mm (blank) SRuebmsatraknsc:e TReesmtianrgkwsafsieldc.onTduhcetveadlouenstrheepmoirxtteudraepapslydteosctrhiatbemdixitn utrhee aTnedstnot the fluorochemical proportion alone. Conclusions 00000 Microbial metabolic activity reduces the abilityof the test substance to foam. Submitter: 3M Company, Environmental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133 - bataQuaurtY 000000000 Reliability: Kiimisch ranking 3. Study lacks description and records of the method followed. The inoculum is not properly characterized. The sample purity was not properly characterized and the study lacks analytical confirmation of the amountoffluorochemical proportion in the solution. RE0 FERE0 NCES 0000000 The studies were St. Paul, MN, Lab conducted by the Request number 535M41CSo,mp1a98n0y., Environmental Laboratory, oO THER OOO Last changed: 6/28/00 001450 InternalCorrespondence : ce: DD.. RL.. BRaiccokne/rR.- 5L.3-4BNohon = 21-20 (58) % J. A. PIGNATO - COMMERCIAL CHEMICALS DIVISION - 236-2A Fom E. A. REINER - ENVIRONMENTAL LABORATORY (EEGPC) - 21-BW (63) Swect EFFECT OF BIODEGRADATION ON FOAMING OF "LIGHT WATER ua Doe AUGUST 6, 1980 TIenstcoonnjunFcCt-2i0o3n,wiFtCh-20t6h,e OaEnCdDPMCo-3d0i1f7i,edaBisoiddeegrsatduadtyiownasScdroeneening tfhoaatminpgrovofide"dLIdGaHtTaWoATnERt"heperofdfuecctts.of biodegradation on the wAafsterpou2r8eddayisntoofseipnacruabtaetio#n4, (4251m/l2%)Ofgelaacshs OviEaClDs.testTheculvtiuarles wfeoraem hcaepipgehdt,mesahsaukreend.vigoTraobulesly1 cbyomhpaanrdesfotrhe30resseuclotnsdso,f atnhdesethe W2A8TEdRa"y oslodluctuilotnusreosf wiidtehntitchaolsecoofncefnrtersahtliyonp.repaArlesdo c"oLmIpGaHTred in wtihtihs 4ta0b0lemga/lreHg2C8lzd.ay old *LIGHT WATER" solutions kept sterile Table 1 - Foam Height After 30 Seconds of Vigorous Shaking P28C0-20m3g/l P42C5-20m6g/1 P21C0-30m1g7/1 Fresh Solution 15 mn 20 mm 12 mm AftBeirode28graDdaaystion 5 ma 7 mm 2 mm . HgCFlo,r S28tabDiaylsized 10 mm 15 mm 10 am aThcetsievitryesurletdsucecsleatrhleyadbeimlointsytroafte"LtIhGaHtT WmAiTcErRo"biaplromdeutcatbsoltioc cfuosamt.omerTheisnequdiarteas maabyoutprotvhee utsreefautlabiinlirteyspoofndtihnegsetporofduutcutrse. cPloenacseernicnagll tmheisonin7fo7r8m-a5t0i7o9n.if you have any questions EAR/cel 001451