ISO 04787-2021.docx

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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.aboratoryCEN/TCin1.aboratoryequipment,inaccordancewiththeAgreementontechnica1.cooperationbetweenISOandCEN(ViennaAgreement).ThisthirdThemainchangescomparedtothepreviouseditionareasfo1.1.ows：h)newinformationonmeniscusadjustmentofconvexmeniscushasbeenadded;name1.y,a1.teredprocedure*,Upperedgeofthegraduat