【英文标准名称】:Geometricalproductspecifications(GPS).Inspectionbymeasurementofworkpiecesandmeasuringequipment.GuidancefortheestimationofuncertaintyinGPSmeasurement,incalibrationofmeasuringequipmentandinproductverification
【原文标准名称】:产品几何量技术规范(GPS).工件与测量设备的测量检验.GPS测量中,测量设备校准中和产品检验中不确定度的评估指南
【标准号】:BSENISO14253-2-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-05-31
【实施或试行日期】:2011-05-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Assessment;Calibration;Definitions;Dimensionalmeasurement;Estimation;Geometricalproductspecification;Geometry;GPS;Guidebooks;Measurement;Measuringequipment;Measuringincertainity;Measuringinstruments;Measuringresults;Measuringtechniques;Normal;Productspecifications;Producttests;Products;Qualitymanagement;Specification(approval);Testing;Uncertainties;Verification;Workpieces
【摘要】:ThispartofISO14253givesguidanceontheimplementationoftheconceptofthe“Guidetotheestimationofuncertaintyinmeasurement”(inshortGUM)tobeappliedinindustryforthecalibrationof(measurement)standardsandmeasuringequipmentinthefieldofGPSandthemeasurementofworkpieceGPScharacteristics.Theaimistopromotefullinformationonhowtoachieveuncertaintystatementsandprovidethebasisforinternationalcomparisonofmeasurementresultsandtheiruncertainties(relationshipbetweenpurchaserandsupplier).ThispartofISO14253isintendedtosupportISO14253-1.BothpartsarebeneficialtoalltechnicalfunctionsinacompanyintheinterpretationofGPSspecifications[i.e.tolerancesofworkpiececharacteristicsandvaluesofmaximumpermissibleerrors(MPEs)formetrologicalcharacteristicsofmeasuringequipment].ThispartofISO14253introducestheProcedureforUncertaintyMAnagement(PUMA),whichisapractical,iterativeprocedurebasedontheGUMforestimatinguncertaintyofmeasurementwithoutchangingthebasicconceptsoftheGUM.Itisintendedtobeusedgenerallyforestimatinguncertaintyofmeasurementandgivingstatementsofuncertaintyfor:-singlemeasurementresults;-thecomparisonoftwoormoremeasurementresults;-thecomparisonofmeasurementresults—fromoneormoreworkpiecesorpiecesofmeasurementequipment—withgivenspecifications[i.e.maximumpermissibleerrors(MPEs)forametrologicalcharacteristicofameasurementinstrumentormeasurementstandard,andtolerancelimitsforaworkpiececharacteristic,etc.],forprovingconformanceornon-conformancewiththespecification.Theiterativemethodisbasedbasicallyonanupperboundstrategy,i.e.overestimationoftheuncertaintyatalllevels,buttheiterationscontroltheamountofoverestimation.Intentionaloverestimation—andnotunderestimation—isnecessarytopreventwrongdecisionsbasedonmeasurementresults.Theamountofoverestimationiscontrolledbyeconomicalevaluationofthesituation.Theiterativemethodisatooltomaximizeprofitandminimizecostinthemetrologicalactivitiesofacompany.Theiterativemethod/procedureiseconomicallyself-adjustingandisalsoatooltochange/reduceexistinguncertaintyinmeasurementwiththeaimofreducingcostinmetrology(manufacture).Theiterativemethodmakesitpossibletocompromisebetweenrisk,effortandcostinuncertaintyestimationandbudgeting.
【中国标准分类号】:A52
【国际标准分类号】:17_040_01
【页数】:82P.;A4
【正文语种】:英语


【英文标准名称】:Phenol,o-cresol,m-cresol,p-cresol,cresylicacidandxylenolsforindustrialuse;Methodsoftest;Part11:Determinationofcrystallizingpoint(Excludingcresylicacidandxylenols)
【原文标准名称】:工业用苯酚、邻甲酚、间甲酚、对甲酚、甲苯基酸和二甲苯酚试验方法第11部分:结晶点的测定(甲苯基酸和二甲苯酚除外)
【标准号】:ISO1897-11-1983
【标准状态】:作废
【国别】:国际
【发布日期】:1983-11
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC47
【标准类型】:()
【标准水平】:()
【中文主题词】:测定;化学分析和试验;化学分析;苯酚;结晶;二甲苯酚;甲酚;化合物;酚类;固化;工业产品;连接
【英文主题词】:phenol;solidification;determination;xylenol;cresol;industrialproducts;phenols;connections;chemicalanalysisandtesting;crystallization
【摘要】:Thetestmaybecarriedoutonproductsasreceivedoronadriedsample.ThemethodspecifiedinISO2208shallbeappliedfordrying.Theprincipleofthemethodconsistsincoolingtheliquidorliquefiedtestportionandobservationofthetemperatureduringcrystallizationunderdefinedconditions.Asimplifiedcrystallizationpointapparatusisgiveninthefigure.Ittakesintoaccountthepropertiesoftheseproducts.
【中国标准分类号】:G15
【国际标准分类号】:71_080_90;71_080_15
【页数】:4P;A4
【正文语种】:英语