Document ganEr2mRpwJa6y7eV9LynG5aa
AR 826 - O762
MICROBICS MICROTOX TOXICITY TEST IEST ~S ~U ~ BSTANC 00E 00
Identity: Mixture containing perfluorooctanesulfonate, which may also be
referred to as PFOS, FC-95, or as a component of FC-203CF-X or FC-203CF. (1-Octanesulfonic acid) (CAS # 2795-39-3).
Remarks: The 3M production lot number was 101. The test sample is FC203CF. Current information indicates it is a mixture of 1% PFOS, 20% diethylene glycol monobutyl ether, 70.2% water, 2.75% Acrylic foamer, 3% sodium octyl sulfate, 1% triethanolamine, 2% sulfonated alkyl ether salts, and 0.05% tolyltriazole.
The following summary applies to a mixture with incompletely characterized concentrations of impurities. Data `may not accurately reflect toxicity of the fluorochemical component of the test.`sample.
M0 ETHOD: 0000
Method: Microbics Microtox "BASIC" Procedure
Test type: Acute static
GLP: No
Year Completed: 1991
Species: Photobacterium phosphoreum
Analytical monitoring: pH and osmotic condition.
Exposure period: 30-minutes
Statistical methods: ECS50 values calculated by statistical linear regression program provided for Microtox
Test organism source: Microbics' Reagent.
Test conditions:
Diluent: Millipore Milli-QTM water
Test temperature: Not noted.
Stock and test solution preparation: A primary 2000 mg/L stock
solution was prepared by dissolving 200 mg of test substance in 100
mL of Millipore Milli-QTM water. The pH of the stock solution was 6.6.
An osmotic adjustment was made using 200 mg NaCl dissolved in 10
mL stock solution. Appearanceof test solutions was noted as "clear,
colorless". All test solutions were made by proportional dilutions.
Exposure vessels: 4 mL cuvettes.
Numberofreplicates: two
--
Number of concentrations: Four plus a blank control
Element basis: Percent light loss
R0 ESOT0 S 0000000
Nominal concentrations: Blank control, 125, 250, 500, and 1000 mg/L
001251
Element
value:
~~ 5-minute 15-minute
ECso ECso
= =
470 360
(420 (330
-- -
520) 390)
mg/L mg/L
30-minute ECeo = 280 (260 -- 300) mg/L
Element values based on nominal concentrations.
Remarks: Substance
RTeesmtairnkgswafiseldc.onTdhuectveadluoens
the mixture as reported apply
described in the Test to that mixture and not
the fluorochemical proportion alone.
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SPuaublm,itMtNe,r:5531M33Company, Environmental Laboratory, P.O. Box 33331, St.
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tacks analytical solution.
confirmationofthe
amount
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the
R0 EFEREN0 CES 00000 This study was conducted by the 3M Environmental Laboratory, St. Paul, MN,
Lab Request number J1884-3, 1991.
ow0 er 00000
Last changed: 6/28/00.
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