ISO 04907-3-2023.docx

INTERNATIONA1.STANDARDISO4907-3editionFirst202304P1.asticsIonexchangeresin一忸褥豺Iinatioi1.ofexchangecapacityofanionexchangeresinsinhydroxideformReferencenumberISO4907-3:2023(E)©ISO2023COPYRIGHTPROTECTEDDOCUMENT©ISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InPSd1.Mc;GeatrOn1.(nm11nr1amaqmr6pW11opyp>iiuonmaytheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1.oworISO'smemberbodyinthecountr)oftherequester.f),WV>fifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andContentsForewordIntroductionSconeIvV11.Normativereferences13Termsanddefinitions14Princip1.e25Reaeents267OApparatus-4Samp1.es57.1Samp1.ing5Q7.2Samp1.eDreoaration5OProcedure68.1Genera1.2MMaia2ii22-68.2Tota1.exchangecapacity69Ca1.cu1.ation79.1Tota1.exchangecapacity79.2Strong-basegroupcapacitymm.m.m.mm.m.mm.710Testreport一_8AnnexA(normative)Samp1.ing9Bib1.iography11ForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsttiugh(ISOm11tambif1.i>niKhvcekdHpraptaingbody1.ntttaMiaftbtanddjttetg(nowRIIyS门t<h<jra1.committeehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenancearedyiFFHSOfISo雇附ff三ves点曲d1.m°t1.Mta龈阅MxordanceJ距theeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewwsvjso.org/dircc1.ives).而解熊nts)a%WMakeS幽嬲据i帆n曲%腿榔圈碘68确啊nm舸酗即Adec1.aimedpatentrightsinrespectthereof.Asofthedateofpub1.icationofthisdocumentISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimp1.ementthisdocument.However,imp1.ementorsare懈怖翻琳躺/mj，wWjSOQFg/眸IentS洗蝮油那ion,扁所柏SPO虑袂岫油嬲部忸t躲Ora"suchpatentrights.Anytradeusedinthisconstitutenameendorsenent.documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsand幽幽蛔豳酒侬遮W即辆O)assEif1.眦聚inwe帼s宛嘛丸nBar泄机JSdead曲跳CS槐r¼11isoorgisoforeword.htmI.Thisdocumentwaschemica1.properties,preparedbyTechnica1.CommitteeISO/TC61,P1.astics,SubcommitteeSC5,Physica1.-AIistofa1.1.partsintheISO4907seriescanbefoundontheISOwebsite.由珏拼占6“典fiftsHHiesthismRMeHftKFhoUWWW!而图membeKft1.i命nationa1.standardsbody.AIntroductionExchangecapacityoftendeterminestheperformance.Inpractica1.use,theanionexchangeresinisUftmRISeCgna期用ddkteyde<wfiRM3<)dk11M1.aadoHtaa<1.temIiIgjSbischangtoofimenCPto0tdhowtodeterminetheexchangecapacityofanionexchangeresinsinhydroxide(oramine)form.P1.asticsIonexchangeresin一Determinationofexchangecapacityofanionexchangeresinsinhydroxideform1ScopeandNormativereferencesofthestyreneanionexchangeresinsinhydroxideform.constitutesrequirementsaredocument.Fordatedinreferences,on1.ySomeeditionaIIcitedapp1.ies.contentISO3696,Waterforana1.ytica1.1.aboratoryuseSpecificationandtestmethodsexchangeresinsinhydroxideform3TermsanddefinitionsISOandIECmaintaintermino1.ogica1.databasesforus©inStandardiZatiOnatthefo1.1.owingaddresses:3.1 IECE1.ectropedia:avai1.ab1.eat411www.e1.e<4FopedFghydroxideformstyreneanionexchangeresinweak-basegroups1.texistinggenera1.freeamineInc1.udesthestrong-basegroupsexistinginhydroxideformandthe3.2tota1.exchangecapacityNote1toentr>r:Itisexpressedinmi1.1.imo1.espergramorinmo1.esper1.itreofanionexchangeresins,strong*basegroupcapacityNote1toentry：Itisexpressedinmi1.1.imo1.espergramorinmo1.esper1.itreofanionexchangeresins.Part3:Thisdocumentspecifiestestmethodsofthetota1.exchangecapacity,thestrong-basegroupcapacity2theweak-basegroupcapacityThefo1.1.owingdocumentsofthisreferredinthetextsuchawaythattheoroftheirForundatedreferences,the1.atesteditionofthereferenceddoment(inc1.udinganyamendments)app1.ies.ISO4907-2:2023,P1.asticsIonexchangeresinPart2:DeterminationofwatercontentofanionForthepurposesofthisdocument,thefo1.1.owingtermsanddefinitionsapp1.y.ISOOn1.inebrowsingp1.atform:avai1.ab1.eathttps:/www.iso.org/obpionictypeofstyreneanionexchangeresinsregeneratedbysodiumhydroxideso1.utionundertheconditionsspecifiedinthisdocumentNote1coentr),:aintermChatform.quantityofactivegroupsinhydroxideformstyreneanionexchangeresin(3.1)thatcanexchangewithstrongacidundertheconditionsspecifiedinthisdocument3.3quantityofactivegroupsinhydroxideformstyreneanionexchangeresin(3.1)thatcanexchangewithneutra1.sa1.tsundertheconditionsspecifiedinthisdocument4Princip1.eR州评即JfCH2N(Cha)IhWhenstyreneanionexchangeresinsinhydroxideformreactswithstrongacidso1.ution(suchashydrokerto1.h4fti(isih1.uiiwt)hydn)cnrhangeactivehydroxy1.swithotheranions,andthesubstitutedThereactionformu1.ais:TCH2N(CH3)H2HC1Whenstyreneanionexchangeresinsinhydroxideformreactswithneutra1.sa1.tso1.ution(suchassodiumsu1.phateso1.ution),itcanexchangestronghydroxy1.swithotheranions.Thereactionformu1.ais：的I仕2f+NazS04R+Na+OH(CH3)H2fICHzN(CHj)Hz5ReagentsWARNINGReagentsusedinthisdocumentmayhavepotentia1.hazardstohumanhea1.thandtheenvironment.Ensurethatthetheinstructionsfortheuseofreagentsarestrict1.yfo1.1.owed.Un1.essothcrviseindicated,thereagentsspecifiedinthisdocumentshou1.dbeana1.ytica1.grade.Commercia1.1.yavai1.ab1.e,ready-madeso1.utionsmaybeused.5.1Water,grade2inaccordancewithISO3696.5.2Sodiumhydroxide,standardso1.ution.c(NaOH)OrIOmo1.1.Disso1.ve4gofsodiumhydroxideto1000m1.withwater.Standardizethisso1.utionat1.eastweek1.yasfo1.1.ows.5.2.1 Ca1.ibrationDry10gofpotassiumhydrogenphtha1.ate(KHCH*4,GuaranteedReagent)at105to110for4h.Andthencoo1.toroomtemperatureinadesiccator.Weigh0,75gOfpotassiunihydrogenphtha1.ate(mi)tothenearest0,001g,anddisso1.ve¼rith100m1.waterinaf1.ask.AddOr1.m1.ofpheno1.phtha1.einindicatorso1.ution.Titratewith0,10mo1./1sodiumK9*iW1.Wi¼I).5.2)unti1.thepinkco1.ourappearsandpersistsfor15s.Recordtheconsumption5.2.2 B1.ankdeterminationPipet100m1.ofwater.Carryoutab1.ankdeterminationaccordingtotheappropriateprocedure5.2.1.Recordtheconsumptionvo1.umeOfa1.ka1.i(V,2).5.2.3 Ca1.cu1.ationSeeFormu1.a(1):C(NaOH)=1000-my204,220(V1.)whereC(NaOH)istheactua1.concentration,expressedinmo1.esper1.itre(nw1.1.),ofthesodiumhydroxidso1.ution;miisthemass,expressedingrams(g),Ofpotassiumhydrogenphtha1.ate;V1.isthetitrationconsumptionvo1.ume,expressedinmi1.1.i1.itres(m1.),ofthesodiumhydroxideso1.ution;theVzso1.ution.b1.ankconsumptionvo1.ume,expressedinmi1.1.i1.itres(m1.),ofthesodiumhydroxide5.3Hydroch1.oricacid,standardso1.ution,C(HCI)0,10mo1.1.Di1.ute9m1.ofhydroch1.oricacid(1.r19gm1.)to1000m1.withwater.Ca1.ibratethisso1.utionat1.eastweek1.yasfo1.1.ows.5.3.1 Ca1.ibrationDry5gofsodiumcarbonate(Na2COGuaranteedReagent)at270to300for4h.Andthencoo1.toroomtemperatureinadesiccator.Weigh0,2gofsodiumcarbonate(mz)tothenearest0,0001anddisso1.vewith100m1.waterinaf1.ask.Add0,111U-1.'bromocreso1.green-methy1.redindicatorso1.ution.Titratewith0,1mo1./1.hydroch1.oricacidso1.ution(5.3)unti1.thegreenish-b1.ueco1.ourdisappears.Recordtheconsumptionvo1.umeofacid(V3).5.3.2 B1.ankdeterminationPipet100m1.ofwater,carryoutab1.ankdeterminationaccordingtotheappropriateprocedure5.3.1.Recordtheconsumptionvo1.umeofacid(Va).5.3.3 Ca1.cu1.ationwhereSeeFormu1.aC(HC1.)=(%100O2-1529943V.thec(HCI)so1.ution;actua1.concentration,expressedinmo1.esper1.itre(mo1./1.),ofthehydroch1.oricacidm2isthemass,expressedingrams(g),ofsodiumcarbonate;内isthetitrationconsumptionvo1.ume,expressedinmi1.1.i1.itres(m1.),ofhydroch1.oricacidso1.ution;istheb1.ankconsumptionvo1.ume,expressedinmi1.1.i1.itres(m1.)rofhydroch1.oricacidso1.ution.5.4Sodiumhydroxideso1.ution,C(NaOH)三2mo1.).Disso1.ve80gofsodiumhydroxideto1000m1.withwater.5.5Sodiumsu1.fateso1.ution.c(Na2SO4)=0,5mo1./1.Disso1.ve71gofsodiumsu1.fateto1000m1.withwater.5.6Hydroch1.oricacidso1.ution,c(HCI)=1mo1.1.Di1.ute90m1.Ofhydroch1.oricacid(1.r19gm1.)to1OOOm1.withwater.5.7 Bromocreso1.green-methy1.redindicatorso1.ution.Disso1.ve0,2gOfbromocreso1.greenand0,015gofmethy1.redtn100m1.ofethano1.>95%(VV)ethano1.Storeinanamberg1.assbott1.e.5.8 Pheno1.phtha1.einindicatorso1.ution.Disso1.ve1,0gofpheno1.phtha1.eininethano1.90%VV)ethano1.anddi1.uteto100m1.5.9 Methy1.red-methy1.eneb1.uemixedindicatorso1.ution.Disso1.ve0.1gofmethy1.redand0,1gofmethy1.eneb1.uein100m1.ofethano1.>90%VVethano1.,respective1.y.Mixtheabovetwoso1.utionsinequa1.vo1.umes.Storeinanamberg1.assbott1.e.5.10 Sodiumch1.orideso1.ution,c(NaCI)三10.Disso1.ve100gofsodiumch1.orideto1000m1.withwater.NCuEaSantd>trattioncq(6M1.encc31.2)p><it165Beiidbitmtfombito1.i11jdetrict1.pcratiscru)ints,beequiva1.encepointofthech1.oridioncontenttitrationbysi1.vere1.ectrodeastheendpoints.6ApparatusWARNING-Apparatususedinthisdocumentmayhavepotentia1.hazardstohumanhea1.thandtheenvironment.Ensurethattheinstructionsfortheuseofapparatusarestrict1.yfo1.1.owed.Usua1.1.aboratoryequipmentand,inparticu1.ar,thefo1.1.owingshou1.dbeused:6.1 Exchangeco1.umn(seeFigure1.)1.intena1.diameter20mm.3fi1.terp1.ate4cockp1.ug1 exchangeco1.umn2 rubberwasherZpartia1.zoom,theratiois2：1Figure1Structureofexchangeco1.umn7Samp1.es7.1 Samp1.ingObtainarepresentativesamp1.eoftheionexchangeresinsinaccordancewithAnnexA.7.2 Samp1.epreparationTransfer50m1.ofsamp1.estothep1.exig1.assexchangeco1.umn(6.1),thenbackwashwithwater,wheretttb1.e.exphnsiomrein!ftvaitouridto5t(tree41.i0(WtftnUmf1.iqUkU(Hi<tHn2rtoutimpuritriigherthantheresin.Treattheresinaccordingtotherequirementsin-JWe-1.Contain20mm1.ayerof1.iquidabovetheresinsbedandensurenobubb1.esthroughouttheprocess.Maintainthetemperatureofthewateranda1.1.pretreatmentso1.utionsat(25±10)°C.Transferandstorethetreatedsamp1.eintoac1.eanwide-mouthbott1.eforuse.8.1Genera1.Removetheexterna1.waterofthesamp1.esinaccordanceISO4907-2:2023,8.1.娘喟ftuaqiisdeterminedaccordingtoISO4907-2.WtR&gMthead喃0延后钳珀IMeSnea但“WWRiAftvaterremoved(8.1)intoadryp1.uggedPipct100m1.of0.1mo1./1hydroch1.oricacidso1.ution(5.3)intothebott1.e,stoppertight1.yandshakewe1.1.,putitinto40waterhath(6.2)forno1.essthan2h,thentakeoutandcoo1.toroomtemperature.Pipet25m1.ofsoakingso1.utionintoaf1.ask,thenadd50m1.ofwater.Add-0,1m1.ofpheno1.phtha1.einindicatorso1.ution.Titratewith0,1mo1./1sodiumhydroxideso1.ution(5.2)unti1.thepinkco1.ourappearsSn8tiibWg6sgRQMPJfcapabiofa1.ka1.iconsumed(Fs).Wh2th8确WbaSeSt11jttG“ha懈躺轴蚪删eses三三n国rWnovGdvedinto8.1dryp1.uggedbott1.e.Recordthemassofsamp1.e(m4)tothenearest0,0001g.Pipet25m1.ofsoakingso1.utionintoaf1.ask,andthenadd50m1.ofwater.Add0,1m1.ofmethy1.red*methy1.eneco1.ourappcarsindicatorso1.ution.TitrateRccordtheVo1.unwhydroch1.or1.cacidconsumedunti1.NOTE1Avoidresinspartic1.esbeingsuckedoutwhenpipettingsoakingso1.ution.NOTE2Accordingtotitration(GM31.2)inISO6353-1.automaticpotentiometricapparatuscana1.sobeusedasana1.ternative.Se1.ectequiva1.encepointoftheacid-basctitrationbypHe1.ectrodeastheendpoints,orequiva1.encepointoftheCh1.orid1.oncontenttitrationbysi1.vere1.ectrodeastheendpoints.9Ca1.cu1.ation9.1Tota1.exchangecapacityCa1.cu1.atet1.附部冏jha般ej嫄册费CordmgtoFormu1.ae(3),(4)and(5):m3EQhQi=I-XQv=Eoh<>whereEohisthdtnefindiadIypftdeieMpKYf1.EeddBJni1.1.inio1.espergram(mno1.g)(wet),ofanionQ1.isthetota1.massexchangecapacity,expressedinmi1.1.imo1.espergram(mmo1.g)(dry),ofanionexchangeresinsinhydroxideform;c(HCI)C(NaOH)istheactua1.concentration,expressedinmo1.esper1.itre(mo1.1.)rofthenomina1.1.y0,1mo1./1.hydroch1.oricacid;istheactua1.concentration,expressedinmo1.esper1.itre(mo1./1.),ofthenomina1.1.y0,1mo1./1.sodiumhydroxideso1.ution；Vsisthevo1.ume.ProCedUrC8CXPrCSSedinmi1.1.i1.itres(n1.)rofsodiumhydroxideso1.utionconsumedinisthemass,expressedingrams(g),ofthesamp1.einprocedure8.1；isthewatercontent,expressedinpercent(%),ofthesamp1.einhydroxideform;6'iisthetota1.vo1.umeexchangecapacity,expressedinmo1.esper1.iter(mo1.1.),ofresinssamp1.e;dbisthewetapparentdensity,expressedinKrampermi1.1.i1.itres(gm1.),ofresinssamp1.eincompactedandwetstate.9.2Strong-basegroupcapacityCa1.cu1.ateiesyg11gasegroupcapacityaccordingtoFormu1.ae(6),(7)and(8):E,a=1114(6)EaQFQV2=EadbwhereEAisthestrong-basegroupcapacity,expressedinmi1.1.imo1.espergram(mmo1./g)(wet),ofanionexchangeresinsinhydroxideforminwetstate;Qiisthestrong-basegroupmasscapacity,expressedinmi1.1.imo1.espergram(mmo1.g)(dry),ofanionexchangeresinsinhydroxideform;c(HC1.)istheactua1.concentration,expressedinmo1.esper1.itre(mo1.1.),ofthenomina1.1.y0,1mo1./1.hydroch1.oricacid;Visthevo1.ume,expressedinmi1.1.i1.itres(m1.),ofhydroch1.oricacidconsumedinprocedure8.2;2isthemass,expressedingrams(g),ofthesamp1.einprocedure8.2;isthewatercontent,expressedinpercent(%),ofthesamp1.einhydroxideform;isthestrong-basegroupvo1.umeexchangecapacity,expressedinmo1.esper1.iter(mo1./1.),ofgresinssamp1.e：扇isthewetapparentdensity,expressedingrampermi1.1.i1.itres(gm1.),ofresinssamp1.eincompactedandwetstate.9.3Weak-basegroupcapacityCaIC出?FdPeWak-basegroupcapacityaccordingtoFormu1.a(9):(9)whereQ3istheweak-basegroupcapacity,expressedinmi1.1.imo1.espergram(mmo1.g)(dry),ofanionM用OSt网KI喘hydroxideform.Thetestreportsha1.1.inc1.udethefo1.1.owingparticu1.ars：a) a1.1.informationnecessarytoidentifythetestmateria1.;b) areferencetothisdocument;i.c.ISO4907-3:2023：c) thesamp1.ingmethodused;d) thetestmethodused;e) thetestresu1.tsobtainedorthefina1.referenceresu1.tsobtainedthroughrepeatabi1.itytest;0a1.ii%粥I制慢Wsfet旭柏附½WQ他1.V1.tsdocument,orregardedasoptiona1.,anddetai1.sofanyg)anyunusua1.features(anoma1.ies)observedduringthetest;h)thedateofthetest.AnnexA(normative)Samp1.ing.1.OverviewThisannexspecifiessamp1.ingmethodsoftheionexchangeresins,A.2Apparatus.2.1Samp1.erA.2.1.1Materia1.,stain1.essstee1.orp1.astic.2.1.2StructureInterna1.diameter25mmto30mm,width18mmto20mm.Theopening1.engthsha1.1.notbe1.essthan80%oftheheightoftheionexchangeresins1.ayer,asshowninFig¼ueA.1.Thetota1.1.engthofthesamp1.ercanbeadjustedappropriate1.yaccordingtotheheightoftheionexchangeresins1.ayerinthecontainer.Ensurethattheopeningsectioncanreachthebottomo