Document d95JJbQoyY1gjbMgrkBzaMYe

CAS Number 25268-77-3 3M Company Voluntary Use and Exposure Information Profile N-Methyl perfluorooctanesulfonamido ethyl acrylate I. CHEARCAL IDENTIFICATION Chemical Name: CAS Number: N-Methyl perflwrooctanesulfonamidoethayclrylat(eMEFOSEA) 25268-77-3 ii. COMTANY IDENTIFICATION Company Name: 3M SiteLocation: 10746 hmovation Road CottageGrove,NIN 55016 1400 StateDocks Road Decatur,AL 35601 TechnicalContact: W.A. Weppner Phone: 651/733-6374 Address: 3M Center,Building236-lB-10 St.Paul,MN 55144 IH. ON-SITE ACTIVITIES CAS # Mfz. (1997) 25268-77-3* < 1MM lbs. Estimatethe amount ofsubjectchemicaldistributeodff-site:<1% Imported 0 *Submittedin1998 TSCA IUR. CAS Number 25268-77-3 3M Company 2 Narrative Description and Process Flow Schematic: 3M Company utilizes a process known as Sirnons Electro-Chemical Fluorination (ECF) to synthesize organofluorinmeolecules.In thisprocess,organicfeedstocksaredispersedinliquida,nhydrous hydrogen fluoridea,nd an electriccurrentispassedthroughthesolutionc,ausingthehydrogen atoms on themoleculeto be replacedwithfluorineT.he predominantcomponents of theproductscreated by thisprocesshave thesame carbonskeletaalrrangementasthefeedstockused,but with allof the hydrogen atoms replacedby fluorineH.owever, fragmentatioannd rearrangementofthecarbon skeletoncan alsooccur and significanatmounts of cleaved,branchedand cyclicstructuremsay be formed. The degreeof fluorinatioonf theorganicfeedstockisalsodependentupon thespecific carbonchainlengthofthefeedstockand parametersoftheECF processsuch as electricaclurrentand thelengthof timetheprocessisrun.Itispossibleto synthesizfeullyfluorinateodr perfluoroorganic moleculeswhere allof thehydrogen atoms of thehydrocarbonfeedstockhave been replacedby fluorineatoms. Using theseperfluoroorganimcoleculesas basicbuildingblocks,unique chemistries can be createdby furthereactionwsithfunctionalizehdydrocarbonmolecules. 3M hasproduced sulfonylbased fluorochemicalcsommerciallyforover40 yearsusingtheECF process.A basicbuildingblockof suchproductsand thehighestproductionvolume fluorochemical 3M manufacturesisperfluorooctanesulfofnlyulorid(ePOSF). The startinfgeedstockforthisreaction isI-octanesulfonfyluoride. (Reaction1) ReactionI C8Hl7sO2F + 17BF I-Octanesulfonyl fluoride Energy -------->- C8Fl7SO2F + 17H2 ECF Perfluorooctanesulfonyflluoride The electrochemicalfluorinatiopnrocess yieldsabout 35%-40% straightchain (normal) POSF, and a mixture of biproductsand waste of unknown and variablecomposition comprised of the following: 1) higherand lowerstraight-chhaoimnologs,i.e.n,-CnF2n+lSO2F,e.g.C,6Fl3SO2F, C7Fl5SO2F, C9Fl9SO2F which compriseabout7% oftheprocessoutput 2) branched-chain,perfluoroalkylsulfonyflluorideswith variouschain lengths,about 18-20% of the output 3) straight-chainb,ranched, and cyclic(non-fimctional)perfluoroalkanesand ethers,which comprise about 20-25% of the output 4) "tars"(highmolecular weight fluorochemicalbyproducts)and otherbyproducts,includingmolecular hydrogen, which comprise about 10-15% of the output. Because of slightdifferencesin process conditions,raw materials,and equipment, the mixture produced by the electrochemicalfluorinatiopnrocessvariessomewhat from lot-to-loatnd from plantto-plant.The product thatresultsfrom electrochemicalfluorinatioinsthus not a pure chemical but rathera mix of isomers and homologues. The commercialized POSF derivedproducts area mixture of approximately 70% linearPOSF derivativesand 30% branched POSF derived impurities. CAS Number 25268-77-3 3M Company 3 During production,byproductsand wasteproductsareformed. The volatilweaste products,such as perfluoromethaneh,ave been ventedtotheatmosphereinthepast,butplansarebeing implemented tocaptureand destroythesereleasesby thermaloxidationoverthenextfew years.The tarshave been landfilleidna hazardouswaste landfililnthepast,but areallcurrentlbyeing incinerateadtan in-houseor externalhazardouswaste incineratorT.he byproducts,many of which areincompletely fluorinatewdithhydrogen atoms stilplresent,canbe recycledback intotheECF processor are partialldyegradedin stabilizatipornocessesand dischargedtocontrolledi,n-house,wastewater treatment systems. The treatment sludge associated with the ECF process has been either landfilled or land-incorporatedin thepast,but allof thistreatmentsludge isbeing landfilledoff-sitseince early 1998. POSF isitselaf commercially viableproduct,but isprimarilyan importantintermediatein the synthesisof substancesused in many other 3M fluorochemicalproducts. The majorityisused to produce functionallyderivatizedfluorochemicalsand high molecular weight polymeric products. Unique chemistriescan be createdby derivatizingPOSF through the sulfonylfluoridemoiety of the molecule using conventionalhydrocarbon reactions.POSF isreactedwith methyl or ethyl amine to produce eitherN-methyl or N-ethylperfluorooctanesulfonamide(MEFOSA or ETFOSA). Some of the MEFOSA and ETFOSA isisolatedto be used as intermediatesto be reactedto form othermaterials. The majorityof theMEFOSA and ETFOSA isnot isolatedand subsequentlyreactedwith ethylene carbonateto form eitherN-methyl or N-ethylperfluorooctanesulfonamido ethanol.These arethe principalbuildingblocks of the 3M product lines. CAS Number 25268-77-3 3M Company 4 The followingblockflow diagram describesthe processdiscussedabove. BLOCK FLOW DIAGRAM Electro-ChemicaFlluorinatioCnells (Octanesulfonylfluoride+ IHF + electricaelnergy) Perfluorooctanesulfonylfluoride (POSF) I Perfluorooctanesulfonicacid (PSOF) Secondary Reacto7rs7 I i v Surfactants v ous commercialized intermediates and su factants Amp oteric surfactants (FireFighting Foams) + N-ethyl(and methyl) perfluorooctane- sulfonamide N-el idmethyl) perfluorooctane- sulfonamido ethanol AdditionalSecondary Reactors Phosphate Esters and Acrylate/polymers (Paper& Packaging) Acrylatepolymers Adipate adducts Urethane polymers (Carpetand Textile Protection) Various conunercialized intermediates and surfactants CAS Number 25268-77-3 3M Company 5 IV. SITE RELEASE AND TRANSFER INFORMATION FOR TRI CHEMICALS Not applicable. V. SITE RELEASE AND TRANSFER INFORMATION FOR NON-TRI CHEMICALS Wliileanalyticamlethods have improved overtime,largevariabilisttyilelxistsforcertainmatrices and compounds, so dataavailablfeorthisreportismostlyof a qualitativneature.Although limited monitoringdataexistsm,ost emissionand waste estimatesarebased upon processmodels and engineeringcalculationsE.ngineeringcalculationhso,wever,have limitationwsithrespectto fluorochemicalbsecausefluorochemicalosseswere not always includedintheanalysisof each intermediatestep. The accuracyoftheemissionsdatasubmittedvariesdue to severalfactors.Batch processsystems aredifficulttomeasure due to quicklychangingprocessconditionsv,entingpressuresand difficulty inisolatinpgrocessestotakemeasurements. Additionallyt,heuniquecharacteristiocfsthese compounds causethem tobehave differentlfyrom conventionalcompounds, and physicalchemical datapropertieasrenot availablfeorallintermediatreeactionstepsinthepast. A. ON-SITE AIR RELEASES ALLPLANTS- Fugitive emissions may occur from vacuum charging from drums, sampling from reactors, drumming of product/intermediatef,lakingmonomer, drying operations.Materialsmay be handled in a molten or solidstate;vapors areproduced from molten material. Industrial hygiene monitoring has been conducted for some compounds. Some minor amounts of these compounds have been detectedas fugitiveemissions duringindustriahlygiene exposure testing. Decatur,AL Emission estimatesare based upon existingprocess models and engineeringcalculations. Fugitiveemissions may have occurred during some handling stepsbut have not been quantified. Estimated Total Annual Releases (lbs.) Estimated % days/years Accuracy of release occurs Estimate (optionsi) Fugitive- (non-point) Not quantified. Stack (point) Estimated Total Annual Releases (lbs.) (1997) <I Estimated % days/years Accuracy of release occurs Estimate (optional) CAS Number 25268-77-3 3M Company 6 Cottage Grove Fugitiveemissions may have occurred during some handling stepsbut have not been quantified. Estimated Total Annual Releases (lbs.)(1997) Estimated % N days/years Accuracy of releaseoccurs Estimate(optional) Fugitiv(enon-point) No data available. Stack(point) No data available. Comments: CAS Number 25268-77-3 3M Company B. WATER RELEASES FROM SITE Decatur,AL Thiscompound was notpartof analytelistinwastewaterstudies. Estimated Total Annual Releases (lbs.) (1997) Estimated % Accuracy of Estimate (optionsi) Water releases: No dataavailable. Number of days/yearreleaseoccurs: ReceivingWater Name: NPDES Number: Comments: CottaizeGrove,NN Engineeringcalculationasreused toestimatetheamount of materialdischargedto wastewater. Water releases: Estimated Total Annual Releases (lbs.) (1997) 0 Number of days/year release occurs: Receiving Water Name: NPDES Number: Comments: Estimated % Accuracy of Estimate (optionai) CAS Number 25268-77-3 3M Company 8 C. ON-SITE LAND RELEASES Decatur, AL The landtreatmentof Decatursludgewas discontinuedinearly1998. Sludge isnow transportetdoan offsitleandfilalf,terpassingthrougha thickenerand a sludgepress.An impoundment was used in 1997 aspartof thewastewatertreatmentoperationbutisnow only used forback-up operation. Estimated Total Annual Releases (lbs.)(1997) Estimated % Accuracy of Estimate (optional) Landfill Land Treatment/Land Amendment Surface Impoundments Underground Injection Other (specify): 0 Not quantified/Nloongerused Not quantified/Nloongerused 0 Comments: CottaizGerove,MN Sludgefrom theCottageGrove facilitiyssenttoan off-sitiendustriallandfill Estimated Total Annual Releases Obs.) (1997) Estimated % Accuracy of Estimate (optional) Landfill 0 Land Treatinent/LanAdmendment 0 SurfaceImpoundments 0 Underground Injection 0 Other(specify): Comments: CAS Number 25268-77-3 3M Company 9 D. OFF-SITE TRANSFERS Decatur,AL Process wastewaters are managed in an on-sitewastewater treatmentfacilityand are not sent to the POTW. Dl. Transfer to PubliclyOwned Treatment Works (POTW) Number of days/year the releaseoccurs: Annual Transfer Ob): 0 Estimated % Accuracy ofTransfer Estimate (optional) POTW Name: StreetAddress: City: State: NPDES Number: Country: Zip Code: Comments: CAS Number 25268-77-3 3M Company 10 CottaizGerove. MN Processwastewatersaremanaged inan on-sitewastewatertreatmentfacilitaynd arenotsent tothePOTW. Dl. TransfertoPubliclyOwned Treatment Works (POTW) Number ofdays/yearthe releaseoccurs: Annual Transfer(lb):0 Estimated% Accuracy ofTransferEstimate(optional) POTW Name: StreetAddress: City: State: NPDES Number: Country: Zip Code: Comments: CAS Number 25268-77-3 3M Company 12 D2. TRANSFERS TO OTHER OFF-SITE LOCATIONS General Waste Information: There islimited information by CAS number for compound specifirceportingand off-sitteransfercsannotbe readilyverifiedR.atherwastesareclassified by halogencontent,regulatorwyaste codes,physicalpropertiesand non-specific fluorochemicalcategoriesW.here wastesaretrackedby CAS number, theamounts have been included. Decatur,AL A reviewofplantrecordsregardingwastedisposalocationfsorDecaturfluoride-containing wastesindicatetshat70% isdisposedthroughincineratioantvariousoff-sitleocationasnd approximately30% islandfilleadta hazardouswastelandfillI.ncineratioinsnow the predominantdisposalmethod forthesematerials. Estimated Total Annual Releases (lbs.) Estimated % Accuracy of Estimate (optional) Incineration: No specificCAS number dataavailable. Wastewater Treatment 0 (Excluding POTW) Underground Injection 0 Hazardous Waste (RCRA SubtitleC) landfill No specifiCcAS number dataavailable. Other Landfdl No specifiCcAS number dataavailable. Recycle or Recovery Unknown or Other Comments: CAS Number 25268-77-3 3M Company 12 CottageGrove facilituytilizeisncineratiofnoralltheirdrummed wastes. Cottap,eGrove, MN Incineration: Wastewater Treatment (ExcludingPOTW) Underground Injection Hazardous Waste (RCRA SubtitleC) landfill Other Landfill EstimatedTotal Annual Releases (lbs.) 130 0 Estimated% Accuracy of Estimat(eoptional) 0 0 0 Recycle or Recovery 0 Unknown or Other 0 Comments: CAS Number 25268-77-3 3M Company 13 VI. ON-SITE WORKPLACE EXPOSURE 3M COMRM, SRecialiyMaterialsManufacturing,Division,Cordova. IL This informationwillassistEPA in characterizintghe number of workers potentiallyexposed and the magnitude, frequency,and durationof potentialexposure. When providingmonitoring data,ensure thatdata islinkedwith worker activitiedsescribedin question2. 1. Estimate the number of workers potentiallyexposed routinelyto the subject chemical for each of the exposure duration times. If a worker isinvolved in more than one activity,enter only his/hermost typicalactivityin the table.Don't count a worker more than once. The totalnumber in the table should equal the totalnumber of workers potentiallyexposed. Hours/Day <.25 Days/Year <10 10-100 100-250 >250 .25-1 4 1-8 >8 2. Describe the routine worker activitiesto which the workers in question 1 are exposed: sampling, removal of filtercake, and drumming of liquids,manufacture an article,etc. For these activities,describe the physical state of the subject chemical (liquid,gas, particulate, or aerosol, etc.)and, ifin a mixture, the chemical's concentration: The chemical (25268-77-3) is an ingredient in the form of a non-dusting, solid,waxy flake (80% concentration)thatischarged from fiberdrums intoa process vesselwhere itis consumed in a reactionleavinglessthan 1% residualin the finalproduct. CAS Number 25268-77-3 3M Company 14 3. Provide industrialhygiene monitoring data, ffavailable,with a brief description of the sampling method and exposure scenario monitored, e.g., describe the specific worker activities performed by the individuals monitored. For privacy considerations, please do not include any personal identifiers such as a worker's name or social security number with any data submitted to EPA. There is no chemical-specific personal industrial hygiene monitoring data or area/source monitoring data forthisspecificmaterialatthisfacilityF.or most areasof thefacilityr,ecent qualitativeassessment of potentialexposure to thismaterialunder 3M's ongoing industrial hygiene program indicatesa low exposure potentialto thismaterial. Each 3M plantthatproduces sulfonatedfluorochemicalshas an industriahlygieniston staffand is supported by a corporateindustriahlygiene group. 3M's industriahlygiene program focuses on task-based exposure assessment and control.Exposures are identifiedand assessedqualitatively and/or quantitatively.Qualitativeassessments areperformed by an industriahlygienist. Quantitativeassessments includetask-basedpersonalsampling forcertain,specific fluorochemicals and/or source or area sampling. The resultsof the assessments support decisions on exposure control.Engineering controlsarepreferred,but personalprotectiveequipment may be used on an interimbasisor when effectiveengineeringcontrolisnot feasible. 4. Briefly describe the engineering controlsused to minimize exposure to thischemical: No additionalengineeringcontrolsareused. 5. Brieflylistthe personal protectiveequipment your workers regularlywear to prevent exposure of thischemical: During charging employees wear safetyglassesand hard hats,and gloves. Comments: desired.) (Thissectionisavailableto clarifythe responsesgiven. Attach additionalpages if CAS Number 25268-77-3 3M Company 15 3M ComT)any, Specialty Materials Manufacturing Division, Cottage Grove, MN This informationwillassistEPA in characterizintghenumber of workers potentiallyexposed and the magnitude, frequency,and durationof potentialexposure. When providingmonitoring data,ensure thatdataislinkedwith worker activitiedsescribedin question2. 1. Estimate the number of workers potentiallyexposed routinelyto the subject chemical for each of the exposure duration times. Ifa worker isinvolved in'more than one activity,enter only his/hermost typicalactivityin the table. Don't count a worker more than once. The totalnumber in the table should equal the totalnumber of workers potentiallyexposed. Hours/Day <10 <.25 4 .25-1 4 1-8 4 >8 Days[Year 10-100 100-250 >250 2. Describe the routine worker activitiesto which the workers in question I are exposed: sampling, removal of filtercake, and drumming of liquids,manufacture an article,etc. For these activities,describe the physical state of the subject chemical Oiquid, gas, particulate, or aerosol, etc.)and, ifin a mixture, the chemical's concentration: Vacuum charging from drums, sampling from reactor,drumming of product/intermediate, maintenance (changing flange,hose, pipe,valve,filterp,ump or sightglass);materialsmay be handled in a molten or solidstateor dissolvedin organicsolvents;vapors are produced from molten material;approximate concentrationranges from < 1% to 80%. CAS Number 25268-77-3 3M Company 16 3. Provide industrial hygiene monitoring data, if available, with a brief description of the sampling method and exposure scenario monitored, e.g., describe the specific worker activities performed by the individuals monitored. For privacy considerations, please do not include any personal identifiers such as a worker's name or social security number with any data submitted to EPA. There is no chemical-specific personal industrial hygiene monitoring data or area/source monitoringdataforthisspecifimcaterialatthisfacilityF.or most areasof the facilityr,ecent qualitativaessessmentofpotentialexposureto thismaterialunder 3M's ongoing industrial hygiene program indicatesa low exposurepotentiatlo thismaterial. Each 3M plantthatproduces sulfonatedfluorochemicalshas an industriahlygieniston staffand is supportedby a corporateindustriahlygiene group. 3M's industriahlygieneprogram focuseson task-basedexposure assessment and control.Exposures are identifieadnd assessedqualitatively and/orquantitativelyQ.ualitativeassessmentsareperformed by an industriahlygienist. Quantitativeassessmentsincludetask-basedpersonalsampling forcertain,specific fluorocheniicalasnd/orsourceor areasampling. The resultsofthe assessmentssupportdecisions on exposurecontrol.Engineeringcontrolsarepreferredb,ut personalprotectiveequipment may be used on an interimbasisorwhen effectivengineeringcontrolisnot feasible. 4. Brieflydescribethe engineeringcontrolsused tominimize exposure to thischemical: Materialsaretransferreudsingclosedpiping(where possible)from reactorvesselstoother containers.Vacuum chargingofmaterialsfrom dnims isa standardpractice.Positionablelocal exhaustventilatiohnoods aresituatedatsignificanptointsourcessuch as atdrum bungs when drumming. Generalroom airprovidesfordilutionof airbornematerials. 5. Brieflylistthe personal protectiveequipment your workers regularlywear to prevent exposure of thischemical: Processoperatingstandardslisttherespirato(re.g.s,uppliedair,organicvapor cartridgewith particulatperefilteorr,particulatfeilteringg)l,oveby elastomer(e.g.n,eoprene or nitrile), chemicalprotectivcelothing(e.g.2,-piecePVC rainsuit)e,ye protectio(ne.g.c,hemical splash goggleswith orwithoutfullfaceshieldepending on typeof respiratoursed)to be used by the employee when the taskinvolvesexposuretoa particulafrluorochemicalmaterial. Comments: (Thissectionisavailabletoclarifytheresponsesgiven.Attach additionalpages if desired.) CAS Number 25268-77-3 3M Company 17 3M Commy, SpecialtMyaterialsManufacturingDivisionD.ecatur.AL ThisinformationwillassisEtPA incharacterizitnhgenumber of workerspotentialleyxposed and the magnitude,frequency,and durationof potentiaelxposure.When providingmonitoringdata,ensure thatdataislinkedwith worker activitideesscribedinquestion2. 1. Estimate the number ofworkers potentialleyxposed routinelyto the subjectchemical for each of the exposure durationtimes.Ifa worker isinvolvedin more than one activitye,nter only his/hermost typicalactivitiyn thetable.Don't count a worker more than once. The totalnumber in thetableshould equal thetotalnumber ofworkers potentiallyexposed. Hours/Day <10 <0.25 0.25-1 4 1-8 >8 Days/Year 10-100 100-250 >250 4 48 24 2. Describe the routineworker activitietso which the workers in question I are exposed: sampling, removal offiltercake, and drumming of liquids,manufacture an article,etc. For these activitiesd,escribe the physicalstateof the subject chemical (liquid,gas, particulate, or aerosol,etc.)and, ifin a mixture, the chemical's concentration: Vacuum chargingfrom drums, sampling from reactor,drumming of product/intermediatef,laking monomer, maintenance(changingflange,hose,pipe,valve,filtepru,mp or sightglass);materials may be handledin a molten orsolidstatev;aporsareproducedfrom molten materialm;aterial concentratiornangesup to 85%. Wastewater treatmentoperations:collectinagnd analyzingQC samples,operatingfilter press,monitoringprocess,and maintenanceactivitiesm;aterialtypicallpyresentinwaste stream atlessthan 1%. CAS Number 25268-77-3 3M Company 18 3. Provide industrial hygiene monitoring data, ifavailable, with a brief description of the sampling method and exposure scenario monitored, e.g.,describe the specificworker activitiesperformed by the individuals monitored. Forprivacy considerations, please do not include any personal identifierssuch as a worker's name or socialsecurity number with any data submitted to EPA. Personal sampler tubes with XAD-4 resin and mixed celluloseesteror glassfiberprefilter. Sample analysisisby LC-MS. Previoussamplinghad employed silicgaelacidniistubeswith GC-ECD analysisS.ee attachedtableforairsample results. Therehas been area/sourcaeirmonitoringdataand/orsurfacewipe samplingdatacollectefdor thismaterialattheplant.Area/sourcesample resultasnd/orsurfacewipe sample resultasreused to identifyareas with employee exposure potentialas partof exposure assessment under 3M's industriahlygiene program and arenot measurements of actualemployee exposures. Hence, they arenot included with thissubmission. Priorto 1999, these samples were consideredto be semi- validated. Surfaces in production and administrationareaswere sampled in 1998. A glassfiberfilterwetted with methyl alcoholwas wiped insidea 10 cm x 10 cm squarewith analysisby LC-MS. Results indicatedthe presence of these materialson floorsand equipment surfacesin production areas. This resultedin improvements to Hazard Communication practicesp,ersonal hygiene emphasis, personal protectiveequipment emphasis, and severalengineeringand administrativechanges. The sample resultsof any airmonitoring are compared to 3M's voluntaryexposure guideline (EG) of 0.1 mg/m3 (milligramsof fluorochemicalper cubic meter of air)forvarious fluorochemicalcompounds, includingcompounds covered in thissubmittal.The EG is an 8-hour time-weighted average (TWA) personalbreathingzone exposure chosen to minimize potentialfor uptake. Each 3M plantthatproduces sulfonatedfluorochemicalshas an industriahlygieniston staffand is supported by a corporateindustriahlygiene group. 3M's industriahlygiene program focuses on task-based exposure assessment and control.Exposures are identifiedand assessedqualitatively and/orquantitatively.Qualitativeassessments areperformed by an industriahlygienist. Quantitativeassessments includetask-based personalsampling for certain,specific fluorochemicalsand/or source or area sampling. The resultsof the assessments support decisions on exposure control.Engineering controlsare preferred,but personalprotectiveequipment may be used on an interimbasisor when effectiveengineeringcontrolisnot feasible. CAS Number 25268-77-3 3M Company 19 Air SamiplingData for25268-77-3 Job Sample Classification number Concentration Minimum Maximum (mg/m3) (mgim3) (mg/m3) Chemical Operator Building3 Chemical Operator Flaker Team Leader Building3 Team Leader Flaker 90-080 92-060 92-061 94-031 94-032* 94-034* 94-037* 94-038* 94-039* 94-041 * 94-046* 94-050 94-075 94-078 95-006* 95-007* 95-014* 95-040* 95-041 * 95-024* 97-091 92-060 92-061 94-036* 94-047* 94-051 * 94-054* 94-055* 96-069 98-481 * 98-098" Totals 4 <0.003 0.46 0.12 0.06 0.27 <0.01 <0.01 <0.01 <0.01 <0.01 <0.006 <0.01 <0.01 <0.01 <0.006 <0.008 0.012 0.007 0.27 0.46 0.019 0.28 0.15 0.06 0.27 <0.003 <0.02 <0.005 <0.005 <0.005 0.16 0.05 0.049 Geometric Mean 0.025 Geometric Standard Deviation 4.6 The valueforthissample isone of severalfluorochemicaalnalytescollectedon the sample. Samples are allpersonalbreathingzone samples taken over thedurationofa specifitcask. CAS Number 25268-77-3 3M Company 20 4. Briefly describe the engineering controls used to minimize exposure to this chemical: Materials are transferred using closed piping (where possible) from reactor vessels to other containers.Vacuum chargingof materialsfrom drums isa standardpractice.Local exhaust ventilationhoods aresituatedat significanptoint sourcessuch as atdrum bungs when drumming. Some equipment, such as the flaker,isequipped with localexhaust ventilation.General room air providesfordilutionof airbornematerials. 5. Brieflylistthe personal protectiveequipment your workers regularly wear to prevent exposure of thischemical: Specificpersonal protectiveequipment isindicated on written operating procedures used by process operators. Respiratory protection: Tasks with significanetxposure potential(charging,drumming, some maintenance tasks)preperformed using positivepressure,pressuredemand fullface suppliedair respirators.Tasks with moderate exposure potential(shortterm sampling from taps or drums, and some maintenance tasks)are performed using fullfaceair-purifyinrgespiratorwsith organic vapor cartridgesand P 100 prefilters. Hand protection: All tasksidentifiedas having potentialfor hand contactrequireneoprene (Scorpio)or nitriliendustriaglloves. Body protection: Exposure significanttasksuse one or two-piece PVC suits.Aprons may be wom forsome low exposure potentialtaskssuch as sampling. Foot protection: Tasks identifiedas posing a significanftootexposure potentialrequire chemical resistantboots. Comments: desired.) (Thissectionisavailableto clarifytheresponsesgiven. Attach additionalpages if Current exposures are expected to be lessthan those measured in the recentpast. Significant sourceshave been identifieadnd eliminated.In 1998 an extensivearea airsampling of the production areaswas performed. Areas with higherlevelsof airbornematerialswere investigated furtherto identifysources. These sources,which includethe flakingequipment, are in the process of being eliminatedor reduced through replacement with betterventilatedequipment. In addition,the ventilatiosnystem inthe primary productionbuilding(3)isbeing upgraded. The fluorochemicalhazard communication program was improved upon in 1998. This has resultedin improved exposure avoidance behaviors among production employees and betteruse of with personalprotectiveequipment requirements. Additionalhand wash facilitiehsave been installeidn primary process buildings.Food consumption and otherhand-to-mouth activitieasreprohibited.There isno smoking in process buildings.Process employees are instructedto remove and leave theirwork boots and work coverallsattheplant. Work coverallsareprofessionallylaundered. Non-production equipment surfacessuch as floors,doorknobs and stairrailsarecleaned frequently. CAS Number 25268-77-3 3M Company 21 VU. CHEMICAL END USES A. END USE AS AN INTERMEDIATE CONSUMED TO MAKE OTHER CHEMICALS Al. On-Site Use as a Intermediate: Intemiediateconsumed in the production of severalpolymeric products which are used as protectivtereatmentsforcircuibtoards,nonwovens, appareland leather. Product chemical class or product chemical (IncludeCAS number ifappropriate) % oftotal volume ofsubject chemical manufactured or imported 1. FluoroaliphatiAcrylates 90-95% 2. FluorochernicaAlcrylatesCAS 92265-81-1 3-8% A2. Off-Site Use as an Intermediate Product chemical class or product chemical (Include CAS number if appropriate) 1. Not applicable. As reported in Part HI, p.2 % of total volume of subject chemical manufactured or imported As reported in Part III, p.2 CAS Number 25268-77-3 3M Company 22 B. END USES OTHER THAN AS A CONSUMED INTERMEDIATE Use Number 1 of 8 Description of Chemical End Use: This CAS number is used as an intermediate to manufacturepolymers thataresoldto industriaulsersto be millappliedas protective, repellentreatmentsforapparelsubstratesT.hese substratewsillbe made intoapparel productstobe usedby consumers and commercialindustry.This CAS number itselwfillbe presentintheseproductsatlow levelsas a residual. Percentoftotalmanufacturedorimported Volume goingtothisuse:1-2 Check allphysicalformsof the chemicalduringthisuse: Ifused ina mixturecheck appropriatbeox toindicatweeightfractionA.verage values are acceptable: <1% X 1-30% (0.1-2%) 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor X Liquid solution Other (Explain) Use Number 2 of 8 Description of Chemical End Use: This CAS number isused as an intermediateto manufacture polymers thataresoldto industriaulsers to be millappliedas protective, repellenttreatmentsforcarpeting.The carpetingwillbe used by consumers and commercial industry.This CAS number itselfwillbe presentin theseproducts atlow levelsas a residual. Percent of totalmanufactured or imported volume going tothisuse: <1 Check allphysicalforms of the chemical duringthisuse: Ifused in a mixture check appropriatebox to indicateweight fraction.Average values are acceptable: x <1% (<5000ppm) 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor Liquid solution Other (Explain) CAS Number 25268-77-3 3M Company 23 Use Number 3 of 8 DescriptionofChemical End Use: ThisCAS number isused asan intermediatteo manufacturepolymers thataresoldto industriaulsersto be millappliedas protective, repellenttreatmentsfornonwoven substratesT.hese substratewsillbe made intoindustrial workwear ormedicalgarmentstobe used by commercialindustry.ThisCAS number itself willbe presentintheseproductsatlow levelsas a residual. Percentoftotalmanufacturedorimported volume goingtothisuse: <1 Check allphysicalforms ofthe chemicalduringthisuse: Ifused ina mixturecheck appropriatbeox toindicatweeightfractionA.verage valuesare acceptable: x <1% 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water orsolvent- wet solid Gas orvapor X Liquid solution Other (Explain) Use Number 4 of 8 Description of Chemical End Use: This CAS number isused as an intermediateto manufacture polymers thataresoldto industriaulsersto be millappliedas protect-ive, repellenttreatmentsforupholstery.The upholsterywillbe used by consumers and commercial industry.This CAS number itselfwillbe presentin these productsat low levels as a residual. Percent of totalmanufactured or imported volume going to thisuse: <1 Check allphysicalforms of the chemical during thisuse: Ifused in a mixture check appropriatebox to indicateWeight fraction.Average values are acceptable: X <1% 1-30% 30-60% 60-90% >90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor X Liquid solution Other (Explain) CAS Number 25268-77-3 3M Company 24 Use Number 5 of 8 DescriptionofChemical End Use: ThisCAS number isused asan intermediatteo manufacturematerialtshatareregulatedby theFood and Drug Administrationas indirect food additivesused toimpartgreaseand oilresistancteopaperand paperboard.Paper or paperboardareused infood packagingproductssuch asbags,wrappers,cartons,ortrays. This CAS number itselwfillbe presentintheseproductsatlow levelsas a residual. Percentof totalmanufacturedor imported volume goingtothisuse: <1 Ifused ina mixturecheck appropriatbeox toindicatweeightfractionA.verage valuesareacceptable: X <1% (< 4000 ppm) 1-30% 30-60% 60-90% >90% Check allphysicalforms ofthe chemicalduringthisuse: Aerosol Dry Powder Pelletsor largecrystals Water orsolvent- wet solid Gas or vapor X Liquid solution Other (Explain) Use Number 6 of 8 Description of Chemical End Use: This CAS number isused as an intermediateto manufacture materialsthatare soldto industriaulsersto be mill appliedas protective treatmentsforcarbonlesspaper (businessforms).This CAS number itselwfillbe presentin these products at low levelsas a residual. Percent of totalmanufactured or imported volume going tothisuse: <1 Check allphysicalforms of the chemical during thisuse: Ifused in a mixture check appropriatebox to indicateWeight fraction.Average values are acceptable: <1% X 1-30% (0.1-2%) 30-60% 60-90% >90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor X Liquid solution Other (Explain) CAS Number 25268-77-3 3M Company 25 Use Number 7 of 8 DescriptionofChemical End Use: ThisCAS number isused asan intermediatteo manufacturematerialsthataresoldto industriaulserstobe appliedasprotectivtereatments forporoussurfaces.ThisCAS number itselwfillbe presentintheseproductsatlow levelsas a residual. Percentoftotalmanufacturedor imported volume goingtothisuse: <1 Check allphysicalforms ofthe chemicalduringthisuse: Ifused ina mixturecheck appropriatbeox toindicatweeight fractionA.v.erage values are acceptable: <1% 1-30% (0.1-2%) 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor X Liquid solution Other (Explain) Use Number 8 of 8 Description of Chemical End Use: TllisCAS number isused as an intermediateto manufacture polymers thatareincorporatedintoproducts forconsumer use as protective, repellenttreatmentsforupholstery.This CAS number itselfwillbe presentin theseproducts at low levelsas a residual. Percent of totalmanufactured or imported volume going tothisuse: <1 Check allphysicalforms of the chemical during thisuse: Ifused in a mixture check appropriatebox to indicateWeight fraction.Average values are acceptable: X <1% 1-30% 30-60% 60-90% >90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor X Liquid solution Other (Explain)