【英文标准名称】:Airquality.Evaluationofthesuitabilityofameasurementprocedurebycomparisonwitharequiredmeasurementuncertainty
【原文标准名称】:空气质量.用测量不确定度比较法对测量规程适用性进行评价
【标准号】:BSENISO14956-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-09-12
【实施或试行日期】:2002-09-12
【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】:空气污染;空气质量;评估;比较测量;定义;测定;偏移;评定;检验(质量保证);数学计算;测量不确定度;测量技术;计量学;参数;工作特性;性能测试;污染控制;标准参考测量方法;参考;适宜性;试验
【英文主题词】:Airpollution;Airquality;Assessment;Comparisonmeasurement;Definitions;Determination;Drift;Evaluations;Examination(qualityassurance);Mathematicalcalculations;Measuringincertainity;Measuringtechniques;Metrology;Parameters;Performancecharacteristics;Performancetesting;Pollutioncontrol;Referencemeasuringmethods;References;Suitability;Testing
【摘要】:ThisInternationalStandardspecifies,forthefieldofairqualitymeasurementprocedures,the:estimationofmeasurementuncertaintyfromactualorclaimedvaluesofallimportantperformancecharacteristicsofamethodunderstationaryconditions;assessmentofwhetherornotspecifiedvaluesfortheseperformancecharacteristicscomplywiththerequiredqualityofameasuredvalueatastatedmeasurandvalue;evaluationoftheapplicabilityofthemeasurementmethodbasedonlaboratoryperformanceandconfirmatoryfieldtest;establishmentofrequirementsondynamicbehaviourofinstruments.ThisInternationalStandardisapplicabletomeasurementprocedureswhoseoutputisadefinedtimeaverage.
【中国标准分类号】:Z15
【国际标准分类号】:13_040_01
【页数】:38P.;A4
【正文语种】:英语


【英文标准名称】:Toolsteels
【原文标准名称】:工具钢
【标准号】:BSENISO4957-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-03-15
【实施或试行日期】:2000-03-15
【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】:分布曲线;锻件;试样;回火;热处理;温度;检验;等级(质量);化学成分;加工工艺;名称与符号;工具钢;硬度试验;高速钢;表面处理;锻钢;验证;成份允差;钢
【英文主题词】:Alloysteels;Chemicalcomposition;Coldworksteels;Composition;Definitions;Deliveryconditions;Hardness;Heattreatment;High-speedtoolsteels;Hot-workdiesteels;Ladleanalysis;Materialnumbers;Materialsspecification;Mechanicalproperties;Specification(approval);Steelbars;Steels;Surfaces;Testing;Toolsteels;Unalloyedsteels
【摘要】:1ThisInternationalStandardcoversthefollowinggradesofwroughttoolsteels:a)non-alloycold-worktoolsteels;b)alloycold-worktoolsteels;c)alloyhot-worktoolsteels;d)high-speedtoolsteels.Ifnotstatedotherwise,thisInternationalStandardappliestoalltypesofhot-rolled,forged,cold-drawnorcold-rolledproductswhicharesuppliedinoneofthesurfaceandheat-treatmentconditionsgivenin4.1.2andTable1.ProductsaccordingtothisInternationalStandardmaybeproducedbypowdermetallurgy.NOTE1TheTables2,4,6and8coveronlythosesteelswhichhavegainedcertaininternationalimportance,whichdoesnotmeanhowever,thattheyareavailableinallindustrialcountries.Inaddition,anumberofothersteelsfortoolsarespecifiedinregional,nationalorcompanystandards.NOTE2Wheretheheatresistanceofthetoolsisofparticularimportance,asforexampleinthecaseoftoolsforhotformingglass,thematerialselectionshouldbebasedonISO4955orISO9722.2InadditiontothisInternationalStandard,thegeneraltechnicaldeliveryrequirementsofISO404areapplicable.
【中国标准分类号】:H40
【国际标准分类号】:77_140_35
【页数】:42P;A4
【正文语种】:英语