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1、INTERNATIONA1.STANDARDISO1628-1editionFourth2021-02P1.asticsDeterminationoftheviscosityofpo1.ymersindi1.uteso1.utionusingcapi1.1.aryviscometers一MR里a1.princip1.esP1.asUques-Determinationde1.aviscositydespo1.ymeresenso1.utiondi1.uteaaidedeViscosimetresCapi1.1.airesPartie1:PrincipesgenerauxReferencenum
2、berISO1628-1.:2021(E)COPYRIGHTPROTECTEDDOCUMENTISO2021岫rkdea/山thUcdOthcnviscjftc三orrtmcehDVBiwixuioiti08phnn11UatiocBhrhotocp)Mng,ptbcatonpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanherequestedfromeitherISOattheaddressbe1.owOr1.sOXSmemberbodyinthecountryoftherequester
3、.%,tft晒Iandonnet8CH-1214*crnicr,GenevaPhone：M1.22749O1.11Pub1.ishedinSwitzerhnd3.2.3reducedviscosityviscositynumber=Note1toentry:,hcdimensionsofreducedviscosityarc1.aM.quotednumcrica1.Forpractica1.rcduccdsubmu1.tip1.e(ViscoSitynumber)usethesepractica1.convcnicntandthecommon1.y3.2.4 exceptinthecaseof
4、po1.ymersof1.owmo1.armass,forwhichhigherconcentrationsisnecessary.inherentviscosity1.ogarithmicviscositynumberNote2cxccptc11try:Theinhercntpo1.ymersofIowusua1.1.ydeterminedwhichConcentrationsthanncccssaryTe0.005r/3.2.5 intrinsicviscosity1.imitingviscositj,number1.1.口1.oM!0CNoteetTectusua1.1.yneg1.ig
5、ib1.etheVa1.uesratethefunctionsviscosity,inherentviscosityandintrinsicneg1.ected,since3.2.6Kwa1.ueISO2021-A1.1.rightsreserved(normative)Itisessentia1.thata1.1.dust.ofintoorcontac1.within1.iquidundertestiscausefa1.sec1.ean,beobtained.fi1.ters,thetestrc1.eantheASuitab1.eanda1.1.OthermaybeusedAquaregia
6、(3vo1.umesconcentratedhydroch1.oricacidand1vo1.umeconcentratednitricacid)mayberequiredtoremoveinorganicresiduesfromtheg1.assware,andasuitab1.eso1.ventmayherequiredtoremoveoi1.andgrease.Fo1.1.owingthis,drying1.asswiththeandthendeanwithspecia1.1.ypreparedchromic20.Formorethisso1.utionwarmthechromicaci
7、dgent1.yonawaterbath.ovenatachromicacidandrinse100orwith1.eastfivetimeswithwater.Dryinhasbeendisti1.1.ed,driedandfi1.tered,dryingtheapparatuswithas1.owstreamoffi1.tereddryairorrpreferab1.y,withavacuum1.ine.sha1.1.bec1.eanedbydrainingoftheefuxtimesofofsimi1.arso1.ventthehasbeendisti1.1.edandfi1.tered
8、.Drytheapparatuswithas1.owstreamoffi1.tereddryairrwithavacuum1.inerorinane1.ectricovenatatemperaturenohigherthan1000C.Theeffectivenessofthec1.eaningcanbeifthenextso1.utiontobemeasuredisofapo1.ymerofthesametypeandofsimi1.arviscosity,itispermissib1.etodraintheviscometer,washitwiththenextso1.utiontobem
9、easuredandthen1.1.itwithaItisrecommendedthatviscometersusedforsi1.iconef1.uidsandf1.uorocarbonsbereservedexc1.usive1.yforusewiththesef1.uidsandthattheseviscometersbesubjecttoca1.ibrationchecksatfrequenteitherGreatCaresha1.1.So1.vent1.ossesbyevaporationandconcentrationerrorsdependontheparticu1.artest
10、procedureand13(informative)Guidanceisgiveninthisdocumwtonthedeterminationoftheviscometricpropertiesofpo1.ymersinwithbetterasdefinedinthan3.Theattainedinabso1.utethesepropertiesofusua1.1.ybemanyoftheinstrumenta1.errorsareapproximate1.ythesameforbothso1.ventandso1.ution,andareeffective1.ycance1.1.ed.T
11、here1.ativeviscosityandtheotherparametersdefinedinC1.ause3areca1.cu1.atedfromtheeff1.uxtimesofso1.utionandso1.ventTheTheeff1.uxtimestheforceofbegravity,throughtothecapi1.1.aryofasuspended-oftheuids(seeC1.ause4).Thisisequiva1.enttostatingthatthekineticenergyandothererrorsareneg1.igib1.eandthatthedens
12、ityoftheso1.ventdiffersneg1.igib1.yfromthedensityoftheso1.utions.Themostimportantsourcesoferrorincapi1.1.aryviscometryarere1.atedtob)capi1.1.aryendeffects,d) viscousheateffects,f) hydrostaticheadvariations,h) errorsinthemeasurementoftheconcentrationandeff1.uxtime,j)errorsintemperaturestabi1.ityandme
13、asurement,Fortunate1.y,mostoftheseeffectscanbeconsideredneg1.igib1.efortheproposedprocedures.Errorsduetosurfacetension,endeffectsanddrainageeffectsarequitesma1.1.intestswithorganis1.ventsintheareneg1.igib1.ewhenthere1.ativeviscometerisofbyareErrorsdue1.(.Viscousheatthevertica1.andvariationsinthehydr
14、ostaticheadareusua1.1.yverysma1.1.withthistypeofviscometer.havebetakenaccount.3n1.dso1.vcntbett)u1.aJbdw(u2ufttrabudbktuQ90idIdngNofSineasuituqnradoh1.)j(so1.utions.Theeffectofshearratecanbeserious,sincepo1.ymerso1.utionsareoftennon-Newtonian(4,(sj.Strict1.y懈期时报琳eaM%enh嗨加即酷iedFortunateW吊战墟ar品翩/脾曲f三闻
15、邸,蜘加esareverysma1.1.un1.essthemo1.armassofthepo1.ymerishig1.wrthan106gmo1.,whichse1.domhappenswithcommercia1.po1.ymers.Furthermore,itisimpractica1.totakeaccountofshearrateeffectsfor瓶BHiwSofdiMna痢三站搬Sh谢“ebetiF端恒achrcdb1.cdE田1.三酶nestestingthesamepo1.ymersamp1.e.IS而展圉椒用沏MatC艇吸Qb1.e斶Jortan蝴猴JitOfaPR眼幅at
16、e临池如Cme枢由力rofoM俪瞅nergyUhbe1.ohdeviscometerhavingacapi1.1.arydiameterof0r58mm.Theresu1.tanterrorinthereducedviscositywi1.1.beofI1.ieorderof30%and,forspecia1.workoutsidethescopeofthisdocument,itmightSVhfjW1.tf1.iHfifteraiWfitW!Mergythatcorrectionintointernationa1.standardization,itisa)citherthekinetic
17、-energytermisneg1.igib1.e,b)ori1.1.sconstantandreproducib1.eindifferent1.aboratories.itcanbeshownthatthesecondconditioncannotberea1.izedeasi1.y.Infactrthemaximumfractiona1.hydrostadpressureXspentinkineticenergyisgivenapproximate1.ybyFormu1.a(B.1.)(B1.)xv4whereRhistheradiusofthecapi1.1.ary;isthehydro
18、statichead;y1.istheacce1.erationduetogravity；visthe1.engthofthecapi1.1.ary;istheviscosity/densityratio.ItisimportanttonoteinFormu1.a(B.1.)thattheef11uxtimeandthereservoirvo1.umebythemse1.vesdonotinf1.uencetheva1.ueofX.Forstandardg1.asscapi1.1.arieswithdiametersbetween0,3mmand1,0mmrtheto1.erance1.imi
19、tsforthediamete119Hiareusua1.1.y0,02mm,correspondingtoapproximate1.y30%and8%,respective1.y,9。帆却MqMM?期眯畅ndftg由Xg用曲祗所都岛浦届甲J1.%书画不冰泡的哪锁楸Sionfcfengthun1.essthenorma1.to1.erancesonstandardcapi1.1.ariesaresevere1.yrestricted,thekinetic-energytermcannotbemadereproducib1.e.Itisthereforenecessarytochoosevisc
20、ometerswhichminimizeit.dhtddWftfiMi;themaximumpermittedva1.ueofXisfixedat0,03(approximate1.y4%to6%oftheFromFormu1.a(B.1.),itcanbeseenthat,atfixedva1.uesofhand1.rthecritica1.parameterwhichdefinesthemagnitudeofXistheratioRv.14ByinsertingI.=90mmX0,0320,111v(B2)Di0,444v(B.3)hydrostaticnotedthatcapi1.1.a
21、ry1.ength.dependentvarytheParticu1.arvariousva1.uesdcsignsascnbedviscometermeanFormu1.aviscositjrZdensitycaIcu1.ationknownmaximumtemperahremeasurement.Cou1.dfo1.1.owsthat,aso1.ventviscometer,togetherwiththe-ateu1.a1.edtheoretica1.maximumcapi1.1.arydiameterfortheUbbe1.ohdesubstitutinggivenre1.evantVa
22、IuesOtherappropriateseriesofviscometersandsizescanbeidentifiedbyTab1.eB.1.Examp1.esofviscosity/densityratiosforestab1.ishedpo1.ymerso1.vents,andthecorrespondingmaximumtheoretica1.capi1.1.arydiameters-Creso1.(meta-creso!)13,10=120nun.andinFormu1.a(B.1.).are1.aUo1.up-btureenthemaximumcapi1.1.aryradius
23、tobeusedandtheva1.ueofvisobtainedasshorninFormu1.a(B.2):15orrforVhediameter,whereRandDareinmmandvisinmm2s-1.Ituri1.1.beheadandtheFornnh(B.3)isThesewi1.1.onbetweenoftheand.inparticu1.ar,ares1.ight1.ydifferentfortheUbbc1.ohdeandD1.NUbbc1.ohdeversions.whose(B.3)permitsratiovisoftheatthetheoretica1.ofdi
24、ameterthatItbeusedforinordertodeterminethepropertiesofpo1.ymersdescribedinthisdocument,theViSCOSity/densityratiofortheso1.ventchosenmustbeknown.Tab1.eB.1.givesva1.uesat25forsevera1.oftheestab1.ishedso1.ventsforpo1.ymers.Formu1.a(B.3)hasa1.sobeenusedtose1.ecttherecommendedsizesofUbbe1.ohdeandDINUbbe1
25、.ohdeviscometerstheinTab1.e1.intoFormu1.a(B.1.).So1.ventVisCoSity/densityratioat25c,CMaximumtheoretica1.capi1.1.arydiameterfromFormu1.a(B.3)mTrich1.oromethane0.360,40Bib1.iography1 FikentscherH.1.Ce1.1.u1.osechemier13,pp.58-64(1932)2 OnyonP.F.rinTechniquesofpo1.ymercharacterisation,ed.byA1.1.enP.W.,
26、Buttenvorths1.1.ondonr1959(3JCragg1.H.,VanOeneH.,Can.J.Chem.,39,203(1961)4 Passag1.iaE.,YoungJ.T.rWegemerN.J.,J.Po1.ymerSci.r47,333(1960)5 1.ohmanderU.,Makromo1.Chem.72,159(1964)6 KrigbaumW.R.,F1.oryPJJPo1.ymerSci.,11,37(1953)7 Cragg1.H.1.StonesR.H.,DumitruT.E.rJ.Po1.ymerSci.i13,167(1954)8 Merri1.E.V.rMick1.cyH.S.,RatnA.,PerkinsonG.Trans.Soc.Rheo1.1.S.237(1961)and6,119(1962)J硼恪因StandardSpecificationsandOperatingInstructionsforG1.assCapi1.1.aryKinematic10BS188,Methodsfordeterminationoftheviscosityof1.iquids16ICS83.080.011.1ricebasedon16pages
