ISO/TR 12767-1998 用压差装置测量流体流量偏离于ISO5167-1给出的操作条件和规范的效果指南

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【英文标准名称】:Measurementoffluidflowbymeansofpressure-differentialdevices-GuidelinestotheeffectofdeparturefromthespecificationsandoperatingconditionsgiveninISO5167-1
【原文标准名称】:用压差装置测量流体流量偏离于ISO5167-1给出的操作条件和规范的效果指南
【标准号】:ISO/TR12767-1998
【标准状态】:作废
【国别】:国际
【发布日期】:1998-07
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC30
【标准类型】:()
【标准水平】:()
【中文主题词】:虚线;喷嘴;差动装置;流动;符号;流量测量;流量测量;流体;管道;测量
【英文主题词】:Differentialdevices;Dottedlines;Flowmeasurement;Flowmeasurements;Flows;Fluids;Measurement;Nozzles;Pipelines;Symbols
【摘要】:ThisTechnicalReportprovidesguidancetoassistinestimatingtheflowratewhenusingpressure-differentialdevicesconstructedoroperatedoutsidethescopeofISO5167-1.ItshouldnotbeinferredthatadditionaltolerancesorcorrectionscannecessarilycompensatefortheeffectsofdeviatingfromISO5167-1.Theinformationisgiven,inthefirstplace,toindicatethedegreeofcarenecessaryinthemanufacture,installationandmaintenanceofpressure-differentialdevicesbydescribingsomeoftheeffectsofnon-conformitytotherequirements;andinthesecondplace,topermitthoseuserswhomaynotbeabletocomplyfullywiththerequirementstoassess,howeverroughly,themagnitudeanddirectionoftheresultingerrorinflowrate.Eachvariationdealtwithistreatedasthoughitweretheonlyonepresent.Wheremorethanoneisknowntoexist,theremaybeunpredictableinteractionsandcarehastobetakenwhencombiningtheassessmentoftheseerrors.Ifthereisasignificantnumberoferrors,meansofeliminatingsomeofthemmustbeconsidered.ThevariationsincludedinthisTechnicalReportarebynomeanscompleteandrelatelargelytoexampleswithorificeplates.Thereare,nodoubt,manysimilarexamplesofinstallationsnotconformingtoISO5167-1forwhichnocomparabledatahavebeenpublished.Suchadditionalinformationfromusers,manufacturersandanyothersmaybetakenintoaccountinfuturerevisionsofthisTechnicalReport.
【中国标准分类号】:N12
【国际标准分类号】:17_120_10
【页数】:31P;A4
【正文语种】:英语