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APFN Work Group Presentation to EPA January 16, 2003
"COMPANY SANITIZED. DOES NOT CONTAIN TSCA CBI"
Agenda
+ Background
What is the APFN Work Group? * Relationship with FMG * What is APFN and what is it used for?
+ Analytical Methods Development
+ Toxicology and Environmental Program
Current Knowledge of APFN
+ Ongoing toxicology/ecotoxicology program + Summary
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Fluoropolymer Manufacturers Group (FMG)
+ The mission of the FMG is to promote the
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polymerization aids (FPA) while establishing and
supporting responsible use of fluoropolymer
products and minimizing the impact on the
environment
What is the APFN Work Group?
+ Separate SPI Work Group
+ Formed to evaluate APFN as compared to APFO
# Members are producers and users of APFN
Limited number of participants complicates the
sharing of some information
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APFN Work Group Members
+Asahi Glass Co. Ltd.
+ Atofina Chemicals, Inc. + Solvay Solexis, Inc. (Ausimont)
What is APFN?
+ APFN is one of the FPAs used by the FMG
member companies to produce fluoro-
polymers as reported in the FMG mass balance update in Sept. 2002
+ FPA -- Fluoropolymer polymerization aide * commercially available perfluoroalkyl carboxylate
surfactant
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Commercially Available APFN
+CAS number 72968-3-88 CBI redacted
Use of Commercial APFN
CBI redacted
$
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PVDF Applications
+ Handled only in industrial processes
Highly weatherable architectural coatings Ultrapure water systems in semiconductor and
pharmaceutical industries Handling of corrosive chemicals ~ pipes, filter
media, tanks, etc. + Fire resistant electrical insulation Lithium ion batteries
+ No direct consumer applications
Fluoropolymer Manufacturing Group
Point Source Emissions Include APFN
+ Voluntary worldwide commitment to contain
* Global minimum emissions reduction of 50% Base year '99 or '00 * Goal years 2004 - 2006
Emissions reduction forecast completed
+ 49% Reduction by 2004 * 67% Reduction by 2006
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Analytical Methods Development
Method development and validation
underway at CRO Selected laboratory experienced with this family of
chemistry
Provide quantitation at ppb - ppt levels
Three matrices:
"Water (LC/MS/MS) "Serum (LC/MS/MS)
-Air (LC/MS)
Analytical Methods Development
+ Methods developed
+Validation in progress
Timing of validation
Water: completed November 2002 to coincide with toxicology testing Serum: completed December 2002 Air: January 2003
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APFN Toxicology Data
* A+AcuLDtCSeDA4onai.lm-aIrmalntaltaot1xi6io7cn-mitaryakt;ada8t2a0 mign/lmi3terature R**epDIineecatraetrayeseeddxpvdoeosrusrweeei-ogrh1at4ld-atyosxicity -- mouse
Lethamiotyi>s310p0omp;pmffeemmaalle>ess3>o30m00 ppm males + Co*mLAmDmeSerOscToireaaltl--AmNPeoFguaNstieve500 - 2000 mo/kg(15%aq.50)
Comparison of FPA Data
[| ofaent
[oedema [ions|__|
[sheinhatation,rat |ic50980mos [1cs0sOmorme|__| [[Genotoxicity | Wotmutagenic |Notmutagenic |Notmutagenic |
[oem [= [=e [MembolizedinvivoTwo
[Notexpected
[Biodegradation No-verylow |Notexpected
[Ne
|
|Wotexpectad |
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APFN Testing Strategy
+ Determine differences and similarities of commercial APFN and APFO
* Use screening approach to begin
+ 3 Proposed studies
Chemical/physical properties Health effects
Environmental effects
APFN Studies Planned
PhyVsaipcoarlp/rcehsesmuirceal properties Water solubility Stability in water (hydrolysis as a function of pH)
Health effects Acute oral toxicity in rats + 28 day oral study with reproduction screen (rats)
+ Environmental effects Acute studies in fish, daphnia, algae
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APFN Testing Status
+ Water method completed Nov. 2002 + 28 day oral study started at TNO in 4th
Quarter 2002
= Doses selected are 0.1, 0.5, and 2 mg/kg Anticipate results 2 quarter 2003 Preliminary range finding results were
reported to TSCA 8(e) office Dec 20, 2002
+ Environmental effects and phys/chem properties testing initiated
Summary
+ APFN not widely used
Limited mostly to PVDF manufacturing
+ Primarily industrial applications; No direct consumer applications
+ Significant reduction in potential exposure sources planned
Emissions at fluoropolymer plants
+ Toxicity and environmental effects work progressing on schedule
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