ISO 04266-2-2023.docx

INTERNATIONA1.STANDARDISO4266-2editionSecond2023“1PetrO加Umand1.iquidPetrO加UmproductsMeasurementof1.eve1.andtemperatureinstoragetanksbyautomaticmethods一purementof1.eve1.inmarinevesse1.sParo1.eCtproduitspatro1.1.ersIiquidesMesuragcduniveauetde1.atemperaturedans1.esreservoirsdestockagepardesmethodesautomatiques一Partie2:MesurageduniveaudansIescUernesdenavireReferencenumberISO426622023(E)ContentsForeword4.27.2Genera1.recommendations.4.2.3Protectiongauging4.2.8Compatibi1.ityInitia1.shipyardadjustmentVerificationtcchno1.ogy-spec11cconsiderations7.4.2AgreementVerificationa1.ternateverification8.3Te1.emetryandreadoutequipment9Annex A (informative)Accuracy1.imitationsofmarine1.eve1.measurement10Annex B (informative)Accuracy*1.imitationsofmarinevo1.umeIneasurenient11Bib1.iography.12ISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsbodiesmemberbodies).TheEachmemberinterestedinsubjectforwhichcarriedoutcommitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnongovernmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththeTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenancearedifferentinthedocumentPart1.Innoted.ThiSthediffereddraftedincriteriaforeditoria1.ru1.esoftheISO/IECDirectives,Part2(seewww.iso.org/direc1.ives).ofdrawsISOtopositionthatthetheevidence,ofthisordocumentmayofanytheusepatentrightsinrespectthereof.Asofthedateofpub1.icationofthisdocument,ISOhadnotreceivednoticeof（八）PatCnt(三)whichmayberequiredtoimp1.ementthisdocument.However,imp1.ementorsaredatabasethatthisatmaythe.ISOsha1.1.behe1.dmayforobtainedfromtheora1.suchpatentrights.AnytradeusedinthisForanexp1.anationofthevo1.untarynatureOfstandards,themeaningofISOspecifictermsandtheWor1.dTradeconformityprincip1.estheTechnica1.aboutISO's(TBT),towww.iso.org/iso/foreword.htm1.and1.ubricantswasnatura1.syntheticsources,ISO/TC28SC2,andre1.atedproducts,andre1.atedproducts.ThisThemainchangesareasfo1.1.ows:一in4.2.7,ithasbeenc1.arifiedthatthetank1.eve1.shou1.dbemeasuredandrecordedsimu1.taneous1.ywiththetemperature；in7.4.4.1,ithasaddedadditiondocumentsinBib1.iography.Anyfeedbackoroftheseonbefoundatshou1.ddirectedusers.ISOandIECmaintaintermino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses:ISOOn1.inebrowsingp1.atform:avai1.ab1.eathttps:/www.iso.org/obp371IECE1.ectropedia:avai1.ab1.eat4Ups5ww¾4e)eetw>pe<haH=gautomatic1.eve1.gaugeA1.GautomatictankgaugeATGyitrumentthatcontinuous1.ymeasures1.iquidheightdip(3.2)oru1.1.age(3.5)instoragetanksdipinnageejtica1.distancebetweenthedippingdatumpointandthe1.iquid1.eve1.innagebasedautomatic1.eve1.gaugeomatic1.eve1.gauge(3.1)designedandinsta1.1.edtomeasurethe1.iquiddip(3.2)direct1.ysti1.1.-pipesti1.1.ing-we1.1.standpipeguideVertica1.poIeperforatedpipebui1.tintoatanktocontainthe1.iquid-1.eve1.-detectinge1.ementinordertoreducemeasurementerrorsarisingfrom1.iquidturbu1.ence,surfacef1.oworagitationofthe1.iquid,andg.revideastab1.emountingpointforanautomatic1.eve1.gaugeu1.1.ageoutagedistancebetweenthe1.iquid1.eve1.andtheupperreferencepoint,measureda1.ongthevertica1.ggasurementaxisu1.1.age*basedautomatic1.eve1.gaugeautomatic1.eve1.gauge(3.1)designedandinsta1.1.edtomeasurethedistancefromtheA1.Greferencepoint里,he1.iquidsurfaceintrusiveautomatic1.eve1.gaugeautomatic1.eve1.gauge(3.1)wherethe1.eve1.-sensingdeviceintrudeswithinthetankandmakesphysica1.比tactwiththe1.iquid,e.g.af1.oatandservo-operated-typeautomatictankgaugenon-intrusiveautomatic1.eve1.gaugeautomatic1.eve1.gauge(3.1)wherethe1.eve1.-sensingdevicecanintndewithinthetank,butdoesnotmakephysica1.contactwiththe1.iquid,e.g.amicrowaveorradar-typeautomatictankgauge4Precautions4.1 Safetyprecautions4.1.1 Genera1.NOTEmatertaI-Compadb1.Iityprecautionsgovernmentregu1.ations,dassicationequipment.andISGOTTonsafety4.1.2 Equipmentprecautions4.1.2.1construction.4.1.2.24.1.2.3OrganizationTheanddassicationinsta1.1.ationA1.Gshavesubjectgenera1.approva1.approva1.thefomationa1.designmesurementNOTEheat,Type-approva1.f1.uctuationsMIndUdefo1.1.owing：insu1.ationjnspecdon,e1.ectromagneticcompatibi1.ity,and4.1.2.44.2 Genera1.recommendations4.2.1 AccuracyandperformanceofmarineA1.Gsandshou1.dbeobservedwheretheyareapp1.icab1.e.4.2.2 Speedofresponsefi1.1.ingoremptyingrates.©ISO2023-A1.1.rightsreservedInaddition,themanufacturers*recommendationsontheuseandinsta1.1.ationoftheequipmentshou1.dbefo1.1.owed.andInternationa1.Standardsandeanapp1.ywhenmarine1.GsocietiesA1.1.marineA1.Gsshou1.dbecapab1.eofwithstandingthepressure,temperatureandotherenvironmenta1.conditions1.ike1.ytobeencounteredinmarineservice.WhenanA1.Gisinsta1.1.edinacorrosiveservice,anypartsexposedtothe1.iquidorvapoursshou1.dbeofdurab1.e,corrosion-resistantA1.1.A1.Gsshou1.dbesca1.edtowithstandthevapourpressureof1.iquidinthetank.A1.Gsmountedonvesse1.swithaninertgassystem(IGS)shou1.dbedesignedtowithstandtheoperatingpressureoftheIGS.and/orinternationa1.(IMOiShou1.dCENE1.EGISGOTT,insta1.1.edinaccordancee1.ectrica1.appropriatenationa1.shou1.dbecertifiedforuseinthehazardous-areac1.assificationappropriatetotheirinsta1.1.ation.maintenanceinstructionsshou1.dmaintainedwith.safeoperatingconditionandthemanufacturers,NOTE1designandSOdeHeS,oRVhOcancanbeissuedacothetypeoftheofthe1.Gfortheparticu1.arserviceforwhichitistobeemp1.oyed.Typeapprova1.isnorma1.1.yissuedafteranA1.GhasbeensubjectedtoaspecificseriesoftcstszandissubjecttotheA1.Gbeinginsta1.1.edinanapprovedmanner.dry2inc1.ination.testspowerthcsupp1.icsfVisua1.rcsistancctperformance,vibration,humidity,highvo1.tage.tobeUsedThcfiscaJCust(X1.ypn)VKtetraiisforsecurityapp1.iGitionrIheunauthorizedad)ustmentcihHttUmperinsea1.ingoftheca1.ibrationadjustmentThegenera1.recommendationsgivenin4.2.2to4.2.10affecttheaccuracyandperformanceofa1.1.typesMarine1.Gsshou1.dhavesufficientdynamicresponsetotrackthe1.iquid1.eve1.duringmaximumtank5.5Overa1.1.accuracy5.5.1 Genera1.Theovera1.1.accuracyof1.eve1.measurementbyA1.Gs1asinsta1.1.ed,is1.imitedbytheintrinsicaccuracyconditions,equipment,theeffectofinsta1.1.ationmethods,andtheeffectofchangesintheoperatingftsca1.DapeongVonsfw,overa1.1.AbOedfiscrt/racyMyA1.Gstoansfeiheci-quiresthehighestpossib1.eaccuracy.TheuseofA1.Gsforoperationa1.purposesoftenpermitsa1.owerdegreeofaccuracy.5.5.2 UseofA1.Gsfor11sca1.custodytransferpurposesTheA1.Gshou1.dmeettheca1.ibrationto1.erancepriortoinsta1.1.ation(see5.2).IIWJABfshou1.dmeettheca1.ibrationto1.eranceafterinsta1.1.ationandinitia1.settingattheshipyardThe1.Gshou1.dmeettheonboardverificationto1.erance(seeC1.ause7).6Insta1.1.ationofmarineA1.Gs6.1 Genera1.MarineA1.Gsshou1.dbeinsta1.1.edinaccordancewiththeA1.Gmanufacturer'sinstructions.6.2 1.ocationofA1.GTheA1.Gshou1.dbe1.ocatedtominimizetheeffectofsurfaceturbu1.enceandwavesinthecargotank.AhGsidtjohehoiAAiifu1.iiiisjned1.twawdsinfcdHinagais1.HhBdUiInRtawiijvuta1.1.htMeabdrtiyra1.,fTeMrepthstedoatwhentheA1.Gisnotinuse.E“trev黑曲谛1.bYAi>id。曲a时也更鼎好3用他ftfap班珊4检shojj1.舐机制电相睡即嬲1.havecurvatureside(三),suchastheaftandtorwardwingtanks,theA1.Gshou1.dbe1.ocatednearerrotheinboardbu1.kheadtoavoidinterferencewiththecurvatureofthevesse1.'stankbottom.Eff领ttft。佗31福胭&6自"H洌则力眄ere碘fechn。出gf由gW¾g1Wft)caH8内9我1.GSreqUiredtoaccommodatethemeasurementofsma1.1.vo1.umes(ROB/OBQ)(seeAP1.MPMS,Chapter17.4).6.3 1.ocationofmanua1.ca1.ibrationcheckpointTopermitaccuratecomparisonoftheproduct1.eve1.measuredbetweenmanua1.gaugingandautomatic6r6ogi砒ngfminemed3bksioncheckpointshou1.dbeprovidedc1.ose(i.e.within1m)tothe1.G.缺tf*1.ied姗日鸭艇WhbOTd崎则的内M3HdG电bedesignedandinsta1.1.edsothatitcanbeAftermountingA1.Gswhichuseintrusive1.eve1.-sensinge1.ementsandpriortoca1.ibration,the1.eve1.checkshou1.dbedones1.ow1.ytocheckedtoactua1.freeandovertheentiretheA1.G.Itispossib1.ethatthereareadditiona1.techno1.ogjr-spedficconsiderationswhichcanaffectA1.Gverification.Specific,additiona1.stepscanberequiredtoeffecttheA1.Gandtothepropertiesofthe1.iquidandvapourinthetank,theneedforcheckingfreemovementofthe1.eve1.sensor,andothers(refertotheA1.Gmanufacturers*documentationforfurtherinstruction).MarineA1.Gsthatmeasuretheu1.1.age1.eve1.fromthetopdownshou1.dbeverifiedbymanua1.u1.1.ageinnageMarineAfter1.eavingtheshipyardandbeforethemaidenvoyage,mostvesse1.sfi1.1.certaintankswithwatercheckthetheA1.Gsofthebevessespumps,va1.vesandtankDuringAftercomp1.etionofcargo1.oadingata1.oadport,andpriortodischargeatadischargeport,thenorma1.practiceistousedcargooftheToagainstthetankvesse1.Theandadverse1.eve1.sconditions,verificationshou1.dbeperfo11nedwithastab1.e1.iquid1.eve1.The1.iquid!eve!atwhichthe1.Gisverifiedshou1.dbewithintheintendedoperatingrangeoftheAI>G.WheretheIfthereadingbyA1.Gandthereadingbymanua1.gaugingagreewithin611m,nofurtheractionshou1.dIfthereadingby1.Gandthereadingbymanua1.gaugingdifferbymorethan6mm,theA1.Greadingandthemanua1.themanua1.gaugebereadingsandA1.G(orfivetimesifthereForinthetank),thevesse1.shou1.dbeonanevenkee1.andupright.Insituationswherebothtrimand1.istexist,everyeffortshou1.dbemadetoe1.iminateat1.eastonecondition,preferab1.y1.ist.7.4.4AdjustmentoftheA1.G7.4.4.1Ifthedifferencebetweentheaverage1.Greadingandtheaverageofthemanua1.gaugereadingsexceeds6mm,theA1.Gshou1.dbeinvestigatedanddifferencesrecordedoverat1.east31.eve1.s,ifdifferenceexistsovera1.1.1.eve1.s,itshou1.dbereadjustedorresettoagreewithmanua1.gauging.Theseadjustmentsandthereasonsforthemshou1.dberecordedinthevesse1.'sequipmentmaintenance1.og.7.4.4.2Afteradjustment,thereadingbyA1.Gshou1.dbecomparedwiththereadingbymanua1.gaugingasdescribedin7.4.3.IfthedifferencebetweentheaverageA1.Greadingandtheaveragemanua1.gaugereadingis1.essthan6mm,nofurtheractionshou1.dberequired.7.4.4.3maybeUsedXheTheA1.Gcorrectionadjustedtopostednearaveragereadoutgaugeusedreading,correctcorrectionreading.Thiscorrectionshou1.dberecordedinthevesse1.documents.7.5Verificationbya1.ternatemethodsInpractice,duetotheoperatingconstraints(e.g.c1.osedorrestrictedgaugingrequirement),a1.ackOfrP附ymanua1.1.ocatedgau眄M1.ngaU*11p由赚S)Qbtamdad图TSeVeH惇KAMGtionSmeaSf眺即洲SHeKSeIa1.rmethod,onboardverificationcanbeperformedbycomparingthe1.eve1.measuredbytheA1.Gagainstpredetermined,stab1.ereference(三)atthetankorA1.Gsupportpipe.Themethodandprocedure,which赞2,嗓骼附感除regu1.arA1.GV<!nfcat1.on11theA1.Gmanufacturer'srecommendation.1.曲曲岫出AH的VF刨业Hi的癖附fu11ta2三fMnonc8邸和由懵欢触IIanUa1.orby7.7Recordkeeping1.Gverificationrecordsshou1.dbedocumentedandtherecordshou1.dbereadyforinspectionbyinvo1.vedparties.Therecordsshou1.dbekeptforaminimumofoneyearortwentyvoyageswhicheveristhe1.onger.8Datacommunicationandreceiving8.1 Genera1.Thisc1.ausegivesrecommendationsforthespecificationofthecommunicationbetween1.eve1.8.2 transmitter(三)receivcr(三),viceversa.Useofremotereadoutinfisca1.orcustodytransfer称4fMd?Aganthef做即的B痴eadcut%dfMp1.tfe?<MtWh阳Q七创弗福由乌MIWnCeSgiventheC1.ause5.岫EUPthe词郴融蜩硼曲'n闻舐曲晒肝三槐削呢也施懈Jts。枪洛物状册蚣Q蜘掰翩蒯ardvo1.umes.8.3 Te1.emetryandreadoutequipmentnotConipromiseieceivingaccuracyandmeasurement,measured)bydifferencetransmitterat1.eve1.sdisp1.ayednotcompromisethereso1.utionofthemeasurementoutputsigna1.,provideadequatespeedtomeettheupdatetimerequiredforthereceivingunit,and3-A1.1.nghtsreservedTheA1.Gshou1.dbedesignedandinsta1.1.edsuchthatdatatransmissionandreceiptshou1.d:bytheremotetheunitofthedisp1.aye<1.(ori.e.thethe1.eve1.betweenthethetankshou1.dnotexceed1mm,providepropersecurityandprotectionofthemeasureddatatoensureitsintegrity.beC1.ectromagnetica1.1.yimmune.AnnexA(informative)Accuracy1.imitationsofmarine1.eve1.measurement1.eve1.measurementusingmarine1.Gsisaffectedbythefo1.1.owinginherent1.imitations,regard1.essoftheA1.Gsused,a) Measurementofsma1.1.vo1.umes(ROBorOBQ).Measurementofsma1.1.vo1.umesofROBandOBQbyanA1.Gcanbedifficu1.t.b) Accuratedeterminationoftrimand1.istACC前由电C1.erminaI棺½醛51.QM闻1.UsttoAWiukandIUWtanMiStb加/CUeWiwtr触HScyamu1.ti-pointdraft,thenusingtrimcorrectionwhichisappropriatetothatofthetank.Ifautomaticcorrectionfortrimand/or1.istisprovidedaspartoftheA1.Greadout,thecorrectionshou1.dbeusedinaccordancewithMPMSAPIChapter17.4.c) Effectofthevesse1.motioncausingwavesinthetanks.WaVeS1.曲群thet1.丽KymaifeQ湖曲廊苗史easurem#NS1.MxFMir>teWZ>Umme想i1.t必帝Mantaneouswavecrests,makingca1.ibrationofA1.Gsdifficu1.twhenwavesarepresentinthetanks.SomeA1.Gsprovideinterna1.fi1.teringa1.gorithmsaspartofthereadouttoaveragethe1.eve1.readingsoveratimeinterva1.Thefi1.teringtimecanbefixedormadeadaptivetotheencounteredmotion.d) Changeofthetankdimensionsduetooi1.orwatertemperature.Thed酮ymfr4gIkStankCteft的Vit阚Ump三6f1AbH出6#网融网也dot1.Rieft>nThischangesthereferenceheightwhichaffectsthe1.eve1.accuracyofA1.Gswhicharemountedonthetopdeckstructure.e) Changeofthetankdimensionsduetohogorsag.Hoggingorsaggingchangesthereferenceheightwhichaffectsthe1.eve1.accuracyofA1.Gswhicharemountedonthetopdeckstructure.她CaHIfty触KMQtetfmQUtt<mnWH胭网陶(kantimpactontheovera1.1.accuracyof1.eve1.measurementAnnexB(informative)Accuracy1.imitationsofmarinevo1.umemeasurementUdihiBemeanhttjn<i11iHSJntan1.tiHnhtVn1.nn1.)Oardmarinevesse1.sisaffectedbythefo1.1.owing1.imitationsa) Tankcapacitytab1.eaccuracy.SomeWfiG制琳HVa1.1.yfi前YankSaccuratewithnear1.yemptyornear1.yfu1.1.tanks,butcontainsignificantb) C1.ingageC1.ingageisthi曲即触tth#啕催Usm国MW'B出及3小冰小斗懵阴/相蚓16R曲铝dftied.c) Sedimentandwater(SandW),andfreewater.Ma甜闻54忸隰M济即Hbfr砒Ah2%ssme蝌1.H三entA8fW叫nd抨刑曲描ft三f檎由心accuratesamp1.ing,samp1.ehand1.ing,and1.aboratoryana1.ysis.Accuratefreewaterdeterminationisdifficu1.tparticu1.ar1.ythefreewaterinthes1.optank.d) Temperaturemeasurement.Temperaturedifferencescanexistbecausethetankbu1.kheadsareincontactwiththeocean,makingitdifficu1.ttodetermineanaccurateaveragecargotemperature.e) Contentsofthevesses1.ines.Thevo1.umeoftransferredoi1.isaffectedbythevo1.umesof1.iquidinthevesse1.'s1.inesandpumps.Accuratemeasurementrequiresthatthesevo1.umesbequantifiedorestimatedbeforeandafterthecargotransfer.OVesse1.experiencefactor.DetrfWHfiondffferent.vesse1.experiencefactor(VEF)frommarineA1.Gsandfrommanua1.measurementThe1.imitations1.istedabovecanhavesignificantimpactontheovera1.1.accuracyofvo1.umesdeterminedbymarineautomatic1.eve1.measurement(andbymanua1.1.eve1.measurement).Bib1.iography(I)5SOge4&如&学(11Mj"也毗WqUf1.fbod印曲*p渺。附emWeme，研KW岬。睹。秘ItfMfKm。Hggf&vperaturein2!¾tf¾8.Petro1.eumand1.iquidpetro1.eumproductsTemperaturemeasurementsManua1.3 !(7507(a1.1.parts),Petro1.eumand1.iquidpetro1.eumproductsCa1.ibrationofvertica1.cy1.indrica1.4 50"M加笆做力卬沉网毋用索”硼物才EGff靛拥喇K喇喇展喊圆跳Oa姚砒解onboardmarinecarriersandf1.oating