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0710
BIODEGRADATION (BOD/COD)
TEST SUBSTANCE
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).
Remarks: The 3M production lot numbers were not noted. The test sample is FC-203. Current information indicates it is a mixture of 1.34% PFOS, 35% diethylene glycol butyl ether, 37.85% water, 20% ethylene glycol, 2.66 % Sultone foamer, 3% sodium octyl sulfate, 0.1% sodium lauryl sulfate, and 0.05% tolyltriazole.
The following is an abbreviated summary o f multiple biodegradation studies on FC-203. These studies apply to a mixture with incompletely characterized concentrations o f impurities. Data does not accurately reflect the degradation potential o f the fluorochemical component o f the test sample.
METHOD:___________________________________________________
Method: Various methods, most not noted. Type: BOD and Dichromate Reflux COD GLP: No Year com pleted: 1973 -1980 C ontact tim e: 20 days Inoculum : Seed from various sources.
R E S U L T S _______ ____________
Chemical Oxygen Demand (COD) range:
420,000 -1,070,000 mg/kg
Biochemical Oxygen Demand (BOD) range: 5-Day: 10-Day: 12-Day: 15-Day: 18-Day:
20-Day:
206,250 - 560,000 mg/kg 450,000 - 646,875 mg/kg 660,000 - 830,000 mg/kg 426,312 - 604,687 mg/kg
660,000 mg/kg 426,562 -1,100,000 mg/kg
Remarks: Testing was conducted on the mixture as described in the Test Substance Remarks field. The values reported apply to that mixture and not the fluorochemical proportion alone.
CONCLUSIONS
000429
No reliable conclusions can be derived from these studies. The indication is that the majority of the product components are readily biodegradable. Subm itter: 3M Company, Environmental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133 DATA QUALITY_______________________________________________ R eliability: Klimisch ranking = 3. Study lacks description and records of the method followed. The inoculum is not properly characterized. The testing was conducted on a mixture with chemicals having varying degrees of biodegradability, leading to potential misinterpretation of the results. The sample purity was not properly characterized and the study lacks analytical confirmation of the amount of fluorochemical proportion in the solution. REFERENCES______________________________________ The studies were conducted by the 3M Company, Environmental Laboratory, St. Paul, MN, Lab Request numbers 1940 and 5360S in 1973. OTHER______________________________________________________ Last changed: 6/28/00
000430
Form 10620-5-PWO cc: LAB REQUEST BOOK - 42-5W
Ref^ENVm. SSSS. |NQ., T*C I o 3 Cyuhtr-uJ PRODUCT: F
P R O D U C T E C O L O G IC A L A SS ESS M E N T REQUEST FOR LABORATORY WORK
_________ DIVISION _____
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LAB REQUESTNO.. 3 G O S
REQUESTER
Name: Reauest Date:
Project No.: Code No.: Sample Date:
/ ~ 2 . if -- S '0
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I Date Complte : - g -- ' l A f3 9 ^ - S i L - R O
Hours Spent: _ ~ A X Z
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Please Call Requester If Delays Are Encounter ed.
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Form 19756 PWO
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Environmental Laboratory
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FORM 10620-PWO
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cc: LAB E Q u fe s T BOOK
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Water and Wastewater
CC T c 'iv i'i / tau I
File:
-- f c - P s i 'i
REQUEST FOR LABORATORY WORK Lab Request No. - 1 V ^
TO: ENVIRONMENTAL ENGINEERING LABORATORY - BUILDING 53-6N
Requestor
Lab Personnel
Name
. Request D a te .
Project No.`7 /~ ^ C ) ^ ' ^ Prob N o .O
Code #
Description: <T>
js.________
Sample D a te :______________Date Needed:
Hold Sample F o r .
.Days Est. T im e :.
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. Hrs. /
Date Rec'd. Sample: I \ * S 0 *
^______
Analyst: . ^ C .
- a -- _________________
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P 1 L?L?
Date Completed: _
Hrs. Spent: ___________________________________
Sample Description
Total Hardness, mg/l as CaC0 3
Calcium Hardness, mg/l as CaC03
"P " A lkalinity, mg/l as CaC03
" M " A lkalinity, mg/l as CaC03
pH
Sulfate, mg/l as SO4
Nitrate, mg/l as N O 3
Chloride, mg/l as Cl
Silica, mg/l as Si02
Fluoride, mg/l as F
Ortho Phosphate, mg/l as P
Total Phosphate, mg/l as P
Total Chromium, mg/l asCr
Hex. Chromium, mg/l as Cr
Total Cyanide, mg/l as CN
Ferrocyanide, mg/l as CN
Iron, mg/l as Fe
Manganese, mg/l as Mn
Surfactant, mg/l as LAS
Phenol, mg/l
BOD, mg/l 7 "
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COD, mg/l (Short^Lcrtig^Dilute)
Total Suspended Solids, mg/l
Volatile Suspended Solids, mg/l
Turbid ity, mg/l Silica
Total Solids, mg/l
Total Volatile Solids, mg/l
Conductivity, mhos
Total Bacteria, N o ./1 0 0 ml
Total Coliform, N o ./1 0 0 ml
Fecal Coliform, No./lOO ml
Fecal Streptococcus, N o ./100 ml
Ammonia Nitrogen, mg/l as N
Kjedldahl Nitrogen, mg/l as N
Oil and Grease, mg/l
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