Document jgNEJKr3rYGmQv3R52krzELmN

/75 7 International, Ltd.----------------------------- _______Project Number 454A-102 PFOS: A 96-HOUR STATIC ACUTE TOXICITY TEST WITH THE FATHEAD MINNOW (,Pimephales promelas) ADDENDUM WILDLIFE INTERNATIONAL, LTD. PROJECT NUMBER: 454A-I02 3M LAB REQUEST NO. U2723 U.S. Environmental Protection Agency Series 850 - Ecological Effects Test Guidelines OPPTS Number 850.1075 and OECD Guideline 203 This study was reported using a test substance purity of 90.49%. The test substance characterization was revised on 9/7/00 and the purity was determined to be 86.9%. The Sponsor requested that the results be revised based on the most recent purity analyses. The results previously presented were simply corrected by the ratio of the two purities or a factor of 0.9603. No attempt was made to recalculate analytical standard concentrations or measured concentrations from original raw data. As such, minor errors due to rounding may be present. Attached is the revised summary page from the final report and the most recent certificate of analysis. Wildlife International. Ltd. 2- - Project Number 454A-102 REVISED STUDY SUMMARY BASED ON A PURITY OF 86.9% SPONSOR: SPONSOR'S REPRESENTATIVE: 3M Corporation Ms. Susan A. Beach LOCATION OF STUDY, RAW DATA AND A COPY OF THE FINAL REPORT: Wildlife International Ltd. =E^to^JV[^^^_216013_ WILDLIFE INTERNATIONAL LTD. PROJECT NUM BER: TEST SUBSTANCE: STUDY: M EAN M EASURED TEST C O N C E N T R A T IO N S: TEST DATES: LENGTH OF TEST: TEST ORGANISM : SOURCE OF TEST ORGANISM S: 454A-102 PFOS (Perfluorooctane Sulfonic Acid Potassium Salt) PFOS: A 96-Hour Static Acute Toxicity Test with the Fathead Minnow (Pimephales promelas) Negative Control, 3.2, 5.4, 9.1, 16 and 27 mg a.i./L Experimental Start - February 15, 1999 Biological Termination - February 19, 1999 Experimental Termination - February 19,1999 96 Hours Fathead Minnow (Pimephalespromelas) Wildlife International Ltd. cultures Easton, Maryland 21601 AGE OF TEST ORGANISM S: MEASUREMENTS OF 10 NEGATIVE CONTROL FISH: W EIGHT (g ): TOTAL LENGTH (m m ): Juveniles Mean = 0.36; Mean = 35; Range = 0.21 to 0.49 Range = 30 to 38 96-H O U R L C 50: 9 5 % CONFIDENCE LIM ITS: N O M ORTALITY CONCENTRATION: N O -O BSER V ED -EFFEC TCONCENTRAHON: 9.1mga.i./L 7.7 and 11 mg a.i./L 3.2mga.i./L 3.2m ga.i/L Wildlife International. Ltd. -3 CERTIFICATE OF ANALYSIS Project Number 454A-102 INTERIM CERTIFICATE OF ANALYSIS Revision 1(9/7/00) Centre Analytical Laboratories COA Reference #: Q23-018A 3M Product: PFOS, Lot 217 Reference #: SD-018 Purity: 86.9% Test Name Purity1 Appearance Identification NMR Metals (ICP/MS) 1. Calcium 2. Magnesium 3. Sodium 4. Potassium2 5. Nickel 6. Iron 7. Manganese Total % Impurity (NMR) Total % Impurity (LC/MS) Total % Impurity (GC/MS) Related Compounds POAA Residual Solvents (TGA) Purity by DSC Inorganic Anions (IC) 1. Chloride 2. Fluoride 3. Bromide 4. Nitrate 5. Nitrite 6. Phosphate 7. Sulfate4 Organic Acids5(IC) 1. TFA 2. PFPA 3. HFBA 4. NFPA Elemental Analysis6: 1. Carbon 2. Hydrogen 3. Nitrogen 4. Sulfur 5. Fluorine if ----- 7t ! i'l"' 1. 2. 3. 4. 5. id 1 /% 1 ; 1^ li g 41 w t/vft0/ None Detected None Detected Theoretical Value = 17.8% Theoretical Value = 0% Theoretical Value = 0% Theoretical Value = 5.95% Theoretical Value = 60% 1. 12.48 wt./wt.% 2. 0.244 wt./wt.% 3. 1.74 wt./wt,% 4. 8.84wt./wt.% 5. 54.1 wt./wt.% COAQ23-018A Page 1 of 3 INTERIM CERTIFICATE OFANALYSIS Centre Analytical Laboratories COA Reference #: 023-018A Date o f Last Analysis: 08/31/00 Expiration Date: 08/31/01 Storage Conditions: Frozen []-10oC Re-assessment Date: 08/31/01 'Purity = 100% - (sum o f metal impurities, 1.45% +LC/MS impurities, 8.41%+Inorganic Fluoride, 0.59%+NMR impurities, 1,93%+organic acid impurities, 0.38%+POAA, 0.33%) Total impurity from alltests= 13.09% Purity =100% -13.09% = 86.9% 2Potassium is expected in this salt form and is therefore not considered an impurity. 3Purity by DSC is generally not applicable to materials o f low purity. No endotherm was observed for this sample. 4Sulfur in the sample appears to be converted to SO4 and hence detected using the inorganic anion method conditions. The anion result agrees well with the sulfur determination in the elemental analysis, lending confidence to this interpretation. Based on the results, the SO4 is not considered an impurity.S STFA HFBA NFPA PFPA Trifluoroacetic acid Heptafluorobutyric acid Nonofluoropentanoic acid Pentafluoropropanoic acid ^Theoretical value calculations based on the empirical formula, CgFi7S03"K+(MW=538) This work was conducted under EPA Good Laboratory Practice Standards (40 C F R 160). COA023-018A Page 2 of 3 INTERIM CERTIFICATE OF ANALYSIS Centre Analytical Laboratories COA Reference #: 023-018A LC/MS Purity Profile: Im purity C4 C5 C6 C7 Total wt./wt. % 1.22 1.33 4.72 1.14 8.41 Note: The C4 and C6 values were calculated using the C4 and C6 standard calibration curves, respectively. The C5 value was calculated using the average response factors from the C4 and C6 standard curves. Likewise, the C7 value was calculated using the average response factors from the C6 and C8 standard curves. Prepared By: _______________________________ ____ David S. Bell Date Scientist, Centre Analytical Laboratories Reviewed B y :______________________ ;________ ____ John Flaherty Date Laboratory Manager, Centre Analytical Laboratories COA023-018A Page 3 of 3 ildlife International, Ltd. ECOTOXICOLOGY &ANALYTICAL TESTING SERVICES September 27,2000 Ms. Susan A. Beach 3M Corporation Environmental Laboratory 935 Bush Avenue 3M Building 2-3E-09 P.O.Box 33331 St. Paul, Minnesota 55133 Dear Susan: Enclosed please find Addendums for Wildlife International, Ltd. Project Numbers 454A-101, 454A-102,454A-103A, 54A-104,454A-105,454A-106,454A-107,454A-108 and454A-109 Ifyou have any questions, please let me know. K R D /cyw 8/3m Enclosures Kurt R. Drottar Senior Biologist 8598 Commerce Drive Easton, Maryland 21601 -Tel.410-822-8600 F a x 4 10-822-0632 E-mail ecotox@wildlifeinternational.com European Office: Overscheenseweg IIA 1412 A A Naarden -The Netherlands -Tel. 3 1(0)356949261 Fax 3 1(0)356948229 E-mail aleopoldeworldonline.nl