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1、INTERNATIONA1.STANDARDISO4266-1editionSecond2023-05PetrO加Umand1.iquidPetrO加UmproductsMeasurementof1.eve1.andtemperatureinstoragetanksbyautomaticmethods一附Qqqrementof1.eve1.inatmospherictanksParo1.eCtproduitspatro1.1.ersIiquidesMesuragcduniveauetdeIatemperaturedans1.esreservoirsdestockageparmethodesau
2、tomatiques一Panie1:Mesurageduniveaudans1.esreserwrsapressionatmospheriqueReferencenumberISO4266-1.:2023(E)ISO2023COPYRIGHTPROTECTEDDOCUMENTISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InPSd1.Mc;GeatrOn1.(nm11nr1amaqmr6pW11opypiiuonmaytheinternetoranintranet,withoutpriorwrittenpermission.Permissioncanbe
3、requestedfromeitherISOattheaddressbe1.oworISOsmemberbodyinthecountr)oftherequester.f),WVfifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsttiugh(ISOm11tam
4、bif1.iniKhvcekdHPfff1.PbbGgbOdy1.Iitf1.CIrattod6tand)GfcnowhtdarredMt2committeehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standa
5、rdization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare蜩则搬OfISO雇哪哪es,s郦揄not怖It11蝴源蒯螂幽抑e%0sanceJ做theeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewwsv.iso.org/direc1.ives).曲曲隧enga隧n*ntakes般榔腾树!/On勘f1
6、.部隔四!监8而取啜ntm邓M醐课榴IveC1.aimCdpatentrightsmrespectthereof.Asofthedateofpub1.icationofthisdocument,ISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimp1.ementthisdocument.However,i11p1.ementersareSnaywww.iso.org/aen(hftefifation,1.-1.1.1.8Wespo1ftb1.eobtjididentf1fiiiftyntsuchpatentrights.Anyt
7、radeusedinthisconstitutenameendorsenent.documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOSPeCifiCtermsand幽幽蛔豳酒侬遮W即辆O)assEif1.眦聚inwe帼1.吼。nBar池帆四dead朝乩CSvbr11isoorgisoforeword.htmI.伟的嫡硒t猫那幽red。湖牛繇跳仅mitte尚俯腑TerrHeMz僦巡胸俄附屁m/ue/s
8、re1.atedproducts.Thisrevised.secondeditioncance1.sandrep1.acesthefirstedition(ISO4266-1:2002),whichhasbeentechnica1.1.yThemainchangesareasfo1.1.ows:ithasbeenspecifiedinthescopethatthisdocumentinc1.udesfisca1./CUSU1.dytransferapp1.ications；in4.3.2,ithasbeenc1.arifiedthattemperaturesshou1.dbemeasureda
9、ndrecordedsimu1.taneous1.ywiththe1.eve1.;in.7,theperforationdistanceonsti1.1.-we1.sfrom300mmtoISOmmhasbeenupdated.A1.istofa1.1.partsintheISO4266seriescanbefoundontheISOwebsite.A1.ti郎WM晶&IHieSthiSCahgXgstandardsbody.AISO4266-1.:2023(E)INTERNATIONA1.STANDARDPetro1.eumand1.iquidpetro1.eumproductsMeasur
10、ementof1.eve1.andtemperatureinstoragetanksbyautomaticmethods一Measurementof1.eve1.inatmospherictanks1Scopenonintrusivevericationfisca1.custody1.eve1.transfcrapp1.icationsapp1.iesmeasu11ngvvhich1.evc1.bothpetro1.eumequipment.isnotapp1.icab1.etothemeasurementof1.eve1.inrefrigeratedstoragetankswithA1.G2
11、Normativereferencesconstitutesrequirements1.atesteditiondocument.referencedreferences,(inc1.udingamendments)app1.ies.app1.ies.3Termsanddefinitionsfo1.1.owingapp1.y.ISOOn1.inebrowsingp1.atform:avai1.ab1.eathupswww.iso.orgobp3.1automatic1.eve1.gaugeinstrumentthatcontinuous1.ymeasures1.iquidheightdip(3
12、.2)oru1.1.age(3.10)instoragetanks-503.2dipPart1:Thisdocumentgivesrequirementsandguidanceontheaccuracy,insta1.1.ation,commissioning,andca1.ibrationandtypes,automaticgauges(A1.Gs).ItfortoA1.Gstheareofintrusiveandpetro1.eumproductshavingaReidvapourpressure1.essthan100kPa,storedinatmosphericstoragetanks
13、.ThisdocumentThefo1.1.owingdomentsarereferredtointhetextinsuchawaythatsomeora1.1.oftheircontentundatedreferences,theofthisoftheFordateddocumenton1.ytheanyeditioncitedForISO1998(a1.1.parts),Petro1.eumindustryTermino1.ogyForthepurposesofthisdocument,thetermsanddefinitionsgiveninISO1998(a1.1.parts)andt
14、heISOandIECmaintaintermino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses:-IECE1.ectropcdia:avai1.ab1.eathttps:/www.e1.ec1.ropedia.org/A1.GautomatictankgaugeTGinnage一vertica1.distancebetweenthedippingdatump1.ate(3.3)andthe1.iquid1.eve1.3.3dippingdatump1.atehorizonta1.Whichp1.atemanua1
15、.1.iquid-depthmeasurementsreferencepoint(3.5)toprovideafixedcontact-503.4gauge*hatchopeninginthetopofatankthroughwhichgaugingandsamp1.ingoperationsmaybecarriedoutgaugingreferencepoint3.6 position(andupperdatum)fromwhichmanua1.dippingoru1.1.agingshou1.dbecarriedoutInnagC-basedautomatic1.eve1.gauge3.7
16、intrusiveautomatic1.eve1.gaugeEXAMP1.EF1.oatandscnroopcratcd-typcautomatic1.eve1.gauge.non-intrusiveautomatic1.eve1.gaugeEXAMP1.EMicrowaveorradartypcautomatic1.eve1.gauge.sti1.1.-we1.1.surfacef1.oworagitationofthe1.iquidu1.1.agemeasurementaxisISO2023-A1.1.rightsreserveddippingdatumpointdip-p1.ate一su
17、rfacefrommetaI1.ocateddirect1.ybe1.owthegaugingaremadegaugingaccesspointdip-hatch3.5referencegaugepointpointc1.ear1.ydefinedonthegaugehatch(3.4)direct1.yabovethedippingdatump1.ate(3.3)toindicatetheautomatic1.eve1.gauge(3.1)designedandinsta1.1.edtomeasurethe1.iquiddiprwthanintegra1.referencepointator
18、c1.osetothetankbottom,referencedtothedippingdatump1.ate(3.3)automatic1.eve1.gauge(3.1)wherethe1.eve1.-sensingdeviceintrudeswithinthetankandmakesphysica1.contactwiththe1.iquid3.8automatic1.eve1.gauge(3.1)wherethe1.eve1.-sensingdevicemayintrudewithinthetank,butdoesnotmakephysica1.contactwiththe1.iquid
19、3.9sti1.1.-pipevertica1.,perforatedpipebui1.tintoatanktoreducemeasurementerrorsarisingfrom1.iquidturbu1.ence,3.10outagedistancebetweenthe1.iquid1.eve1.andthegougingreferencepoint(3.5),measureda1.ongthevertica1.3.11automatic1.eve1.gauge(3.1)designedandinsta1.1.edtomeasuretheu1.1.age(3.10)distancefrom
20、theupperautomatic1.eve1.gaugereferencepointtothe1.iquidsurface7.3Initia1.settingsofA1.Gs7.3.1 Settingagainstmanua1.referenceu1.1.agemeasurementsmakingreadingmanua1.referencemeasurements.Checkwhetherthepresencereadingimmediate1.ythebeforeb)Ca1.ibrationthetab1.ereferenceconsecutivemeasurementsaccesspo
21、sitionspecifiedmm,thetankca1.ibrationdifficu1.tiesCanheightexperiencedmeasuredtheandverificationreferenceprocedure.Investigatemorecausewcathcrconditions,tobui1.dccmcasurcmcntscaninconsistcncyadverscheadofthe1.iquidatdifferent1.eve1.swithinthetank.agreeCa1.cu1.aterangeari1.hmeticaverageconsecutivemea
22、surementsaveragewithinconsecutived)Determinetheequiva1.entdipbysubtractingtheaveragemanua1.u1.1.agefromtheaveragemeasuredconfirmFecordedchangehasoccurredduringtheremanua1.gaging.transfereitherreadingfromchangedf)reso1.utiontheA1.GreadingWithA1.GSoca1.cu1.atedreadsequiva1.entdip.theequiva1.entdip.agr
23、ee(withinthe7.3.2Settingagainstmanua1.referencedip(innage)measurementsmakingreadingmanua1.referencemeasurements.Checkwhetherthepresencereadingimmediate1.ythebeforeW1)acrcoKidiMsobaaUkxdptxCHtJihdairitinJiptaiXjdteiRccJeHiMiiiquiiiicirfeuxinconsistcnvjbdvcrscmeasurementtechnique.Fai1.uretoachieveagre
24、ementbetweenthemeasuredandca1.ibrationreferenceheightscanbeduetooneormoreofthereferencedatumsbeingatYectedbyvariationsinthehydrostaticheadofthe1.iquidatdifferent1.eve1.swithinthetank.c) Determinethe1.eve1.ofthetankcontentsbymanua1.referencedipmeasurementsunti1.threeconsecutivemeasurementsagreewithin
25、arangeof1mm,orfiveconsecutivemeasurementsagreeUiithinnicrfA1.isWiiGma.qntaU(WFftV1.1.Wfteight通呼岛惬i画邢硒破他，演日JhafiiAi1.Wcrencedifferentfromtheaverageva1.uedeterminedinstepb),thedipmeasurementshou1.dberejectedassuspect.划Hfns,出拙帙ntmaRGa1.the1.版腺锥SqUithi曲哪则断曲明ntheMttft三ftetechniq1.atherverificationprocedu
26、reshou1.dberepeatedaftercorrectiveactionhasbeentaken.d) Ca1.gdatejhea1thnjticaverageva1.ueofthedip(i.e.theaverageoftheconsecutivemeasurementse) RecordtheA1.Greadingimmediate1.yaftermakingthemanua1.referencemeasurementsandCont1.W的MftiCha炯端加4)曲帼Fherem川掰丽股.tranMh6枪Mn瓶冲版fedthatthetankva1.vesarec1.osed,a
27、ndrepeattheprocedurefromstepa).f) Sec唯端制霄他愉犯施歌hthe孤生激神Ua1.readsre帧nce釉eas1.fth3雌险胡珊/眼成RCedip.7.4Initia1.verification7.4.1 Genera1.U1.1.age-basedA1.GsaredesignedtomeasurethedistancefromtheA1.Greferencepointtothe1.iquidsucfoccjsneenthtfrfbeeikwafiisedAkfranfoitfuinpeIisaterdpcatuiMe).IHtovunjhrt!ittcw
28、dmon1.(*ipQTofu1.1.age-basedA1.Gcannotcompensateformanyofthe1.imitationstotheaccuracyoftank1.eve1.measurementgiveninthisdocument.fif1ed盘的阿晒A的小生SwBtheIe叫Uidt曲帆砧明曲播耀曲OU1.dU1.Iageb三三侬娜etheyrequirethetankbottomonwhichthe1.Gismountedtobestab1.e.R?曲叔31.霭馈急阳P心映晚颈枢侬痛福型垮笆曲曲蚓“亲热阳蝴阶部用Wcanresu1.tin1.eve1.measur
29、ementerrorsandshou1.dbeconsideredduringA1.Gverification.Theseinc1.ude： tankinsta1.1.ationerrors; changesinoperatingconditions; changesinphysica1.propertiesofthe1.iquidand/orvapour; changesine1.ectrica1.propertiesofthe1.iquidand/orvapour; changesin1.oca1.ambientconditions； manua1.gaugingerrors;errors
30、inherentintheA1.G.ISO2023-A1.1.rightsreservedFo1.1.owingtheinitia1.settingofthe1.G,itsovera1.1.accuracyisverifiedby：-comparingtheA1.Gagainstmanua1.reference1.eve1.measurementatthreedifferent1.eve1.sandeva1.uatingthedifferencesbetweenthe1.Greadingsandthemanua1.referencemeasurements,or11WfH)1146d1.e谏1
31、.ankvaspo11c*inbwtperr11idnndducintocttnfttprt4wk1.anerking(see7.3),oritmayberepeated.tranre3m中盟常fit合觇耙OnIybecarriedoutunderstaticconditionswithno1.iquidbeingThetimeinterva1.betweentheverificationmeasurementatthethreedifferent1.eve1.sshou1.dbekeptas生里区as1.Rtt,ificationprocedures7.4.3.1A1.Gverificati
32、onbymanua1.referenceu1.1.age(outage)measurementsthatthe1.eve1.iswithineithertheupperor1.owerthirdofthetank,sworkingcapacity(7.4.2).b)Recordthestab1.eA1.Greadingbeforethegaugerarrivesatthetank.A1.sorecordtheA1.Greadingimmediate1.ybeforemakingthemanua1.referencemeasurements.Checkwhetherthepresenceofth
33、e相出鸣tFA也解？1.dP/般邮M&1.Sing.reading.Ifthe1.Greadingvariesbymorethan1mmC)Measurethetankreferenceheightattheofficia1.gaugingpositionspecifiedinthetankca1.ibration1.KWV由番eag耨羽陶R，en礴以*R西yee也曲庚e部搦RMmetiCm就5vera能眼怖娘UtiVereferenceheight(i.e.theaverageofthequa1.ified,consecutivemeasurementswhichagreewithinthe
34、specifiedto1.erance)withoutrounding,andcomparewiththeca1.ibrationreferenceheight.Iftheandca1.ibrationreferenceheightsdifferbymorethan2nmrinvestigatethecausebeforeproceeding.Co1.KMfewts,1.0b04Mkrffc匕6ri*bdahkunfitcd做iho1.enceth*hUid1.or匕UKitICOnSiS1.ehIWdVerSemeasurementtechnique.Fai1.uretoachieveagr
35、eementbetweenthemeasuredandOi1.ibrationreferenceheightscanbeduetooneormoreofthereferencedatumsbeingaffectedbyvariationsinthehydrostaticheadofthe1.iquidatdifferent1.eve1.swithinthetank.d) Determinethemanua1.referenceu1.1.agemeasurementofthetankcontentsfromthesamegaugingaccesspoint(usingthesamemeasure
36、menttapeandweight)unti1.threeconsecutivemeasurementsagreewithinarangeof1mm1.orfiveconsecutivemeasurementsagreewithinarangeof2mm.Fai1.uretoachievemanua1.measurementswithintheseto1.erancescanbeduetoadverseweatherconditions,movementofthe1.iquidsurface,orinconsistenciesinthemeasurementtechnique.Theverif
37、icationprocedureshou1.dberepeatedaftercorrectiveactionhasbeentaken.e) Ca1.cu1.atethearithmeticaverageva1.ueoftheu1.1.age(i.e.theaverageofthequa1.ified,consecutivemeasurementswhichagreewithinthespecifiedto1.erance).Donotroundthisresu1.t.0Duikittofcitfdce皿用ha1.1.rtdp1.byrosubttstmg1.caveragemanua1.u1.
38、1.agefromtheaveragemeasuredg) Recordthe1.Greadingimmediate1.yaftermakingthemanua1.referencemeasurementsandconf1.M喂麻(ha舰幅骸洲匐榔herema!1.砌EMgA隔2黜in娜嘏网1.dthatthetankva1.vesarec1.osed,andrepeattheprocedurefromstepb).h) B?SFgrffe%tsjtfyi物盼ththetestcaiH1.rtce,t.equiva1.entdip.Thedifferencebetweenthesetwoi)
39、Arrangeforanothertransfertoorfromthetanksothatthe1.iquid1.eve1.iswithintheotherthird.1.fecffft?FeIce1.1.verthisiYd)ofthetanksworkingcapacity,andrepeatstepsb)toh)todetermine7.4.3.2A1.Gverificationbymanua1.referencedip(innage)measurementsthatthe1.eve1.iswithincithertheupperor1.owerthirdofthe1.ankswork
40、ingcapacity(7.4.2).b) Recordthestab1.eA1.Greadingbeforethegaugerarrivesatthetank.A1.sorecordtheA1.Greadingimmediate1.ybeforemakingthemanua1.referencemeasurements.Checkwhetherthepresenceofthegaugeronthetanktopaffectstheinvestigatethecausebeforeproccedingj1.Greading.iftheA1.Greadingvariesbymorethan1mm
41、,c) Measurethetankreferenceheightattheofficia1.gaugingaccesspositionspecifiedinthetank碗如的必流匐岷励描嗯施魏盘Ca田晶M四M战!除抑Raa用1.三舐1aUU*o力苑Cforthereferenceheight(i.e.theaverageofthequa1.ified,consecutivemeasurementswhichagreewithinthespecifiedto1.erance)withoutrounding,andcomparewiththeca1.ibrationreferenceheigh
42、tandca1.ibrationreferenceheightsdifferbymorechan2mm,investigateKhebeforeproceeding.NOatfiCrCoIRwhORsAobuiiHkfpxdetepisi(HHh(Uhk1.nrttocc41.fiii1.(mccnKhaIiquidiGrbmdiiconsistcii1.jfadvcrscmeasurementtechnique.Eai1.urctoachieveagreementbetweenthemeasuredandca1.ibrationreferenceheightscanbeduetooneorm
43、oreofthereferencedatumsbeingaffectedbyvariationsinthehydrostaticheadfthe1.iquidatdifferent1.eve1.swithinthetank.d) Determinethemanua1.referencedipmeasurementofthetankcontentsfromthesamegaugingaccesspoint(usingthesamemeasurementtapeandweight)unti1.threeconsecutivemeasurementsW.tMBgSiamerT1.m.made.Ina
44、nycasewherethereferenceheightisfoundtobemorethan1mmdifferentfromtheaveragedeterminedinstepc)rthedipmeasurementshou1.dberejectedassuspect阿丽ons,田娴胡ntmaMa1.the1.ift啾林廊sQUithinIW期颔隧Sinthef1.而触褥techniq%Mveatherverificationprocedureshou1.dberepeatedaftercorrectiveactionhasbeentaken.e)的押品魅酬j三8狱1.%硼&脆QN的隔啾6
45、口酬nd1三Hua1.ified,consecutiveORecordtheA1.Greadingimmediate1.yaftermakingthemanua1.referencemeasurementsandConnAw卧腿Cha燃腿求曲屐怖俪hercma瓶蛹瞅ra融力隔蟠加桃碱dthatthetankva1.vesarec1.osed,andrepeattheprocedurefromstepb).g) theseA出M的曲崔秋仇sthsY算画四曲由喘榔MCedstepe).Thedifferenceh) M:i1.dbpperano岫岫rtrths可nifxrimfnkthdMnkkingbiphcdJ1.iquicvpbu1.StgRimmahhUi1.1.hIniinCthetestdifferenceatthis1.eve1.7.4.3.3Verificationto1.eranceforA1.Gsinsca1.custodytransferapp1.icationThepurposeofthefisca1./custodytransferverificationistoensurethattheinsta1.1.edA1.Gcansensenkkdibatethevrtwt.itsmeasuringrangeasaccurate1.yasaproper1.
