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1、INTERNATIONA1.STANDARDISO4787editionThird20211.aboratoryg1.assandp1.asticware一Vo1.umetricinstrumentsMethodsfortestingofcapacityandforuseVerrerieetmaterie1.enpiastiquedeIaboratoireInstrumentsvo1.umtriquesMethodeSdessaideIacapacityetduti1.isationCOPYRIGHTPROTECTEDDOCUMENTISO2021IUirhM*hedbdi1.iUedothe
2、rwiseupdhi.o啪InyM1.tta0DmkfifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.227490111觥曲ite：图洲跳触OQrgPub1.ishedinSwitzer1.andContentsForewordV7.2.2Temperatureofca1.ibration1.iquid.39.3Fi1.1.ingVo1.umetric7m一”-”一“一*“-*”.“-10.3Measuringaccordanceaccordance385)with.-1110.5.2Pipettesadjusted“1213AnnexA(infor
3、mative)C1.eaningofvo1.umetricg1.asswareiiiPageIntroductionviScope1Normativereferences1Termsanddefinitions2Princip1.e2Vo1.umeandreferencetemperature25.15.2Unitofvo1.ume.2Referencetemperature2Apparatusandca1.ibration1.iquid26.16.2Ba1.anCe.2Measurementdevices2Factorsaffectingtheaccuracyofvo1.umetricins
4、truments37.17.2Genera1.3Temperature37.2.1thevo1.umetricinstrument7.37.41.C1.ean1.inessofsurface4Conditionsofusedvo1.umetricinstruments4Settingthemeniscus8.18.2Genera1.5Settingthemeniscus5MemscusoftranspaTentCa1.ibrationprocedure79.19.2Genera1.7Testroom79.3.1 andde1.iveryf1.asksandmeasuringcy1.inders
5、9.3.2 Pipenesadjustedtode1.iver79.3.3 Pipettesadjustedtocontain89.3.4 Burettesadjustedtode1.iver9.49.5Weighing9Vo1.umeanduncertaintyca1.cu1.ation9Procedureforuse1010.110.2Genero110Vo1.umetricf1.asks(inaccordancewithISO1042orISO5215)1110.410.5Burettes(incy1.inders(inwithISOISO4788orISO6706)10.5.1Pipe
6、ttcsadjustedtode1.iver(secISO648andISO835,orotherpipettes,e.g.p1.asticones)tocontain10.6Pycnometers12Annex B (informative)C1.eaningofvo1.umetricp1.asticware14Annex C (normative)Ca1.cu1.ationformu1.aeandtab1.es15Annex D (informative)Coefficientofcubictherma1.expansion19AnneXE(informative)Uncertaintye
7、stimationandrepeatabi1.ityca1.cu1.ation20Bib1.iography.一.21Forewordthrough(1.SOmittees.workofpreparingbodyinternationa1.Standardsisnorma1.1.ytechnica1.e1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofdescribedtypesOfISo/IECdocumentsshou1.dbepartidar,do
8、cumentWasapprova1.accordancevriththeAttcntionrigh1.s.drawnsha1.1.notpossibi1.ityresponsib1.cforidentifyinganythisdOcumen1.patentrights,subjectofconstitutenameendorsement,domentisinformationgivenfortheconvenienceofusersanddoesnotexpressionsre1.ated11ganization(WTO)assessment,asinwe1.1.asinformationBa
9、rrierstoTradeadherenceseewithdocumentWasCommitteebyforStandardizationTechnica1.CommiHCeCqUmmOM332rco1.1.aborationrevised,editioncance1.sandrep1.acesthesecondedition(ISO4787:2010),whichhasbeentechnica1.1.ya)vo1.umetricp1.asticwarehasbeeninc1.uded;meniscus,asComparedpointo1.dertheHiuniscusTUppcredgeof
10、thegraduation1.ineishorizonta1.1.yd)-TaWe4hasbeenimproved;Onewtestroomambientconditionshavebeenadded；ISO2021-A1.1.rightsreservedISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsbodiesmemberbodies).TheEachmemberinterestedinsubjectforwhichcarriedoutcommitt
11、eehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnongovernmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththeTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenancearedifferentintheDirect
12、ives,Part1.Innomd.Thtthediffcrtm1.draftedincritenaforeditoria1.ru1.esoftheISO/IECDirectives,Part2(seewww.iso.org/direc1.ives).patentISOtothebehe1.dthatsomethee1.ementsofora1.1.suchmaybetheDetai1.sanypatentrightsidentified(Iuringthedeve1.opmentCehawi1.1.beintheIntroductionand/orontheISO1.istofpatentd
13、ec1.arationsreceived(secwww.iso.org/patents).AnytradeusedinthisForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsandtheWor1.dTradeconformityprincip1.estheTechnica1.aboutISO,s(TBT),towww.iso.org/iso/foreword.htm1.ThistheEuropeanpreparedTechnica1.Committee(CEN)ISOTC48,1.abo
14、ratoryCEN/TCin1.aboratoryequipment,inaccordancewiththeAgreementontechnica1.cooperationbetweenISOandCEN(ViennaAgreement).ThisthirdThemainchangescomparedtothepreviouseditionareasfo1.1.ows：h)newinformationonmeniscusadjustmentofconvexmeniscushasbeenadded;name1.y,a1.teredprocedure*,Upperedgeofthegraduati
15、on1.ineishorizonta1.1.ytangentia1.tothehighestpointoftangentia1.tothe1.owestofprocedurec)improvedfiguresformeniscusadjustmenthavebeenprovided;e)newTab1.e2forminimumrequirementsforthemeasurementdeviceshasbeenadded;g)newinformationregardingrepeatabi1.ityanduncertaintyhasbeenaddedinAnnexE;Anyfeedbackor
16、questionsonthisdocumentshnationa1.standardsbody.Acomp1.ete1.istingofthesebodiescanbefoundatsvsvw.iso.org/mcrnbers.htm1.IntroductionTheInternationa1.Standardsfortheindividua1.vo1.umetricinstrumentsinc1.udec1.ausesontheSpdrit1.f1.atinwthecapacity(vohwtt)0mbigHi!Yi1.ausesTK4i9entyihameub1.nntptaiM4atif
17、1.df1.tDi1.1.aboratoryg1.assandp1.asticwareVo1.umetricinstrumentsMethodsfortestingofcapacityandforuse1 ScopeappropriatestandardIhcdctcrmined,rcsu1.tingthe(Ietenninationindividua1.measurementinstrumentWithmoreThisdocumentTheseapp1.icab1.esing1.e-vo1.umeinstrumentswithnomina1.graduatedpipettesrangeISO
18、835),Themicro-g1.assare.intendedfortestingofvo1.umetricinstrumentswithcapacitiesbe1.ow10O1.suchproceduresSpecifieddeterminationdeterminationofvo1.ume.g1.asswaretypesforofthepycnometers,specia1.2 Normativereferencesconstitutesrequirements1.atesteditiondocument.referencedreferences,(inc1.udingamendmen
19、ts)app1.ies.app1.ies.ISO648,1.aboratoryg1.assware-Sing1.e-vo1.umepipettesISO1042,1.aboratoryg1.asswareOne-markvo1.umetricf1.asksISO3507,1.aboratoryg1.asswarePyknometersISO4788,1.aboratoryg1.asswareGraduatedmeasuringcy1.indersISO52151),1.aboratoryp1.asticwareVo1.umetricf1.asks【SO24450,AObonUorrHasswa
20、rc-Wideneckedboi1.ingf1.asksThisdocumentprovidesmethodsforthetesting,ca1.ibrationanduseofvo1.umetricinstrumentsmadefromg1.assandp1.asticinordertoobtainthebestaccuracyinuse.NOTETestingisisprocessbywhichinthcconformityoftheofitserrorofvo1.umctricatoneorthepoints.to10000m1.isinc1.udetovo1.umetricpipett
21、es(seeISO648),capacitiesinthe(seeof1001.burettes(seeISO385),vo1.umetricasks(seeISO1042andISO5215),andgraduatedmeasuringcy1.inders(seeISO4788andISO6706).asmethodsnotThisdocumentdoesnotdea1.specifica1.1.ywithpycnometersasspecifiedinISO3507.However,thefo1.1.owedforthefortheofpycnometerofForsomecan,part
22、,a1.sobehand1.ingcanbenecessary.Thefo1.1.owingdomentsarereferredtointhetextinsuchawaythatsomeora1.1.oftheircontentundatedreferences,theofthisoftheFordateddocumenton1.ytheanyeditioncitedForISO385,1.aborQtoryg1.asswareBurettesISO835,1.aborQtorygIasswareGraduatedpipettesISO1773,1.aboratoryg1.asswareNar
23、rowneckedboi1.ingf1.asksISO3696,Waterforana1.ytica1.1.aboratoryuseSpecificationandtestmethodsISO4797,1.aboratoryg1.asswareBoi1.ingf1.askswithconica1.groundjointsISO6706,P1.astics1.aboratoryware-Graduatedmeasuringcy1.indersIS07IftUide99,Internationa1.vocabu1.aryofmetro1.ogyBasicandgenera1.conceptsand
24、associated3 TermsanddefinitionsForthepurposesofthisdocument,thetermsanddefinitionsgiveninISO/IECGuide99app1.y.ISOandIECmaintaintermino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses:ISOOn1.inebrowsingp1.atform：avai1.ab1.eathttps:/www.iso.org/obp4IECPiHff1.0edia:avai1.ab1.eathttpswwwe1
25、.etteiiaFgFdfamegohwWr。谢$饭丽Oxheevde1.tyere蜘由4otu瞄tridi*smentuptM8dmtmionofisbaseduponknow1.edgeofitsmassunderconsiderationofbuoyancyanditsdensity(gravimetricmethod).5 Vo1.umeandreferencetemperature5.1 Unitofvo1.umeTheunitofvo1.umesha1.1.bethemi1.1.i1.itre(m1.),whichisequiva1.enttoonecubiccentimetre(
26、cm3).5.2 ReferencetemperatureThestandardreferencetemperature,i.e.thetemperatureatwhichthevo1.umetricinstrumentisintendedtocontainorde1.iveritsvo1.ume(capacity),sha1.1.be20.Whenthevo1.umetricinstrumentisrequiredforuseinacountrywhichhasadoptedastandardreferencetemperatureof27(accordingtoISO384),thisfi
27、guresha1.1.rep1.ace200CinFormu1.a(1).6 Apparatusandca1.ibration1.iquid6.1 Ba1.anceTheba1.anceusedfortestingsha1.1.bechoseninaccordancewiththeminimumrequirementsspecifiedin4a1.e1,dependingonthtb1.ernniH1.Mtni11i1.1.tnvetrauhCfiMKtiBietnimertibdbmcetest.Nomina1.capacity(vo1.ume)VReso1.utionRepeatabi1.
28、ityExpandeduncertaintyinUSCUk(=2)-VVV6.2 MeasurementdevicesTheminimumrequirementsforeachre1.evantmeasurementdevicearespecifiedinTab1.e2.2Tab1.e2MinimumrequirementsforthemeasurementdevicesBarometer0,1kPa1kPa6.3Ca1.ibration1.iquidbetteReceivingvesse1.watertemperaturesha1.1.bewithin+0,5ofroomairtempera
29、ture.Thereceiving1.SO24450,Sha1.1.possib1.e,conica1.groundmanufacturedreceivingvesse1.Sha1.1.accordancecapacityadequate7Factorsaffectingtheaccuracyofvo1.umetricinstruments7.1 Genera1.attemptof1.saccuracyrequired.Wheneriorsgreatestmininium;accuracyisdesired,thevo1.umetricinstrument7.2 Temperature7.2.
30、1 Temperatureofthevo1.umetricinstrumenttemperatureattemperaturevo1.umetricinstrument(seeintendedtocontainorde1.iveritsnomina1.capacityisCxpansionifofVoIUmC1.rieOCinS1.rUtnCntmade20borosi1.icateg1.asste11peraturecocfficientofwou1.dtherma1.7.2.2 TemperatureOfca1.ibration1.iquidVariationfrom1.the0Crefe
31、rencetemperatureCorrectionsfordifferencestemperature,prevai1.ingduringv=(7516ISO2021-A1.1.rightsreservedtemperature(thetemperaturevo1.umetricinstrument)nstrumentisca1.cu1.atedfromFormu1.areference(ci)whereyisthecoefficientofcubictherma1.expansionofthemateria1.ofthevo1.umetricinstrument(seeC.2D.1.).F
32、orinformationthe20fromfaci1.itateObtainedca1.ai1.ationba1.ance,instmmentVo1.umeintroducedreferencetemperatureof(C2)Tab1.eC.5,Tab1.eC.6andTab1.eC.7givefactorZconversionva1.uesfordifferenttypesofg1.assatcommonairtherma1.versusoftheInandairthehavebeenofthedensityofthewater,ofweightsusedfortheba1.ancead
33、justmentisPB=8,0g/m1.(C3)Fortheca1.cu1.ationofthevo1.umeaccordingtoFormu1.a(1)(see9.5),Tab1.eC.3,Tab1.eC.4andTab1.eD.1.1.istthenecessaryva1.uesforpA,pwand.ThedensityofIninTab1.eC.3isgivenforfromtheseof50e.g.contentof0,04inbyrangeof30%to80%,wi1.1.introduceneg1.igib1.eCrrorwithoutsignificanceforthepur
34、posesofthisdocument0.34848/)0009sfor0,theair1.)=t+273,15tcwhereistheambienttemperature,in;isthebarometricpressure,inhPa；isthere1.ativeairhumidity,in%.Underthefo1.1.owingconditions:barometricpressurebetween600hPaand1100hPa,ambienttemperaturebetween15and27andre1.ativehumiditybetween20%and80%,there1.at
35、iveThedensityofwaterinTab1.eC.4isbasedonTanakaeta1.,seeReference3.(C-S)O3(+4)where11aTab1.eC.3Densityofair”B-AirpressureTemperature1.TemperatureAirpressureWTemperatureAirpressureFromRetnence(3).Tab1.eC.5-Factor，forborosIicateg1.ass3.3TcmpcraturctDcnsityp27.01r004301.004331,004361.r004391.004421,0044
36、51,004481.00451Tab1.eC.6FactorZforborosi1.icateg1.ass5.0wisthewaterdensity,ing/m1.；isthewatertemperature,in;-3,983035;320.01,002681,002721.oo27S1.002781,002811.002841.002871.0029027,01.CIO4181.o(H211,004241,004271J)04301J)O4331J004361.00439AnnexD(informative)Coefficientofcubictherma1.expansionTab1.e
37、D.1.Coefficientofcubictherma1.expansion,Materia1.Coefficientofcubictherma1.expansion,x10aYaCOPerzinca1.1.oy(brass)S4=3#whereistheCoeffidentof1.inearde11na1.expansion.-Formoreaccuratedata,themanufacturerofthemateria1.usedmaybecontacted.AnnexE(informative)Uncertaintyestimationandrepeatabi1.ityca1.cu1.
38、ationifbk!cnpactipi)SifthBghev(nvret11iericinstnedbndIk1.pandHtRtibUhb甲InfHnidUfva1.f(tvattvpeatewrifteatinorca1.ibration)thenumberofrepetitionscanbechosen.At1.eastthreerepeatsforverificationpurposesandat1.eastfiveforca1.ibrationpurposescanbeperformedwhi1.eforbatchthereisnoneedforrepeatedmeasurement
39、s.Inordertoverifythecomp1.ianceofthevo1.umetricinstrumentundertestwithcertainaccuracyrequirementsorto1.erancesre1.atedtoitsuse(e.g.to1.erance1.imitsspecifiedinISO1042)itisnecessaryWrfueo蚓1.H6hUyPttWWA三W%1.f*M粕出后(JffiVwkhdvfiCrrorwithrespecttothec1.aimednomina1.Theestimationofmeasurementuncertaintyis
40、se1.f-evidentforthecaseOfca1.ibrationofthevo1.umetricinstrument.TheuncertaintyestimationmaybeperformedaccordingtoISO/IECGuide98-316.Onecomponentoftheuncertaintyistherepeatabi1.ityofthemeasurementandinordertobeeva1.uated,mu1.tip1.erepeatsofthevo1.umemeasurementshou1.dbeperformed.Therepeatabi1.itycanb
41、eca1.cu1.atedbasedondifferentapproaches.Someexamp1.esare:a) Usetheapproachwithfiveor10rep1.icates,accordingtoReference(4)forca1.ibrationservices.b) Usethreerep1.icatesifthestandarddeviationis10%oftheexpandedmeasurementuncertaintyU.c) Considerthepoo1.edstandarddeviationmethodasanoption7).A随dedn的佻MreS
42、哨网明做actsp星触vu11三eIJWa惴福HOn也融堪础f三fi捌网BP4ion),beThetota1.uncertaintyofthevo1.umeexpressedastheexpandeduncertainty,U,isdeterminedbymu1.tip1.yingthecombinedstandarduncertaintyofthemeasurement,uctbythecoveragefactork.Theert1.ifMigreestherefory?Fee(icanexpanHPSfMPCfenceofusingsma1.1.numberofrepeats)the1.a
43、rgerTheva1.ueOfkaswe1.1.asthedetai1.softheuncertaintyestimationaredescribedinISO/IECGuide98-3h1.Bib1.iography121EURAMETcg-18Version4.0,Guide1.inesontheca1.ibrationofnonautomaticweighinginstrumentsOIM1.I)28,Conventiona1.va1.ueoftheresu1.tofweighinginr(RevisionofOIM1.R33)342001,pp.301-309ca1.ibration111t.EURAMETeg-19Version3.0rGuide1.inesonthedeterminationofuncertaintyingravimetricvo1.ume56,PICRD,Rf.DVIS,M.G1.ASERandKFUJII,Revisedformu1.aforthedensityofmoistair1.Metro1.ogia12008,Vo1.45,p.149-145蜴W的烟瓶11呼剂Ze刖
