【英文标准名称】:SpecificationforSteelForgings,CarbonandAlloy,forPinions,GearsandShaftsforReductionGears
【原文标准名称】:减速器小齿轮、齿轮和心轴用碳素钢和合金钢锻件规范
【标准号】:ANSI/ASTMA291-1995
【标准状态】:作废
【国别】:美国
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:钢;齿轮箱;锻件
【英文主题词】:gearboxes;forgings;steels
【摘要】:
【中国标准分类号】:J17;J32
【国际标准分类号】:77_140_85
【页数】:
【正文语种】:英语


【英文标准名称】:Electricalandelectronicmeasurementequipment-Expressionofperformance
【原文标准名称】:电气和电子测量设备性能的表示
【标准号】:IEC60359-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-12
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC85
【标准类型】:()
【标准水平】:()
【中文主题词】:规范(验收);工作性能;工作性能;定义;定义;数学计算;检验;性能;测量仪器;电子工程;适用性;测量;计量学;电学测量仪表;验收检验;极限(数学);电子测量装置;公差(测量);测量设备;电子仪器;电学测量;电气工程;额定值;漂移;性能试验
【英文主题词】:Acceptanceinspection;Calibration;Definitions;Drift;Electricalengineering;Electricalmeasurement;Electricalmeasuringinstruments;Electronicengineering;Electronicinstruments;Electronicmeasuringdevices;Fitnessforpurpose;Inspection;Limits(mathematics);Mathematicalcalculations;Measurement;Measuringequipment;Measuringincertainity;Measuringinstruments;Meters;Metrology;Operatability;Performance;Performanceinservice;Performancetesting;Ratings;Specification(approval);Tolerances(measurement)
【摘要】:ThisInternationalStandardappliestothespecificationofperformance,withprimaryreferencetoindustrialapplications,ofthefollowingkindsofelectricalandelectronicequipment:-indicatingandrecordinginstrumentswhichmeasureelectricalquantities;-materialmeasureswhichsupplyelectricalquantities;-instrumentswhichmeasurenon-electricalquantitiesusingelectricalmeans,forallpartsofthemeasuringchainwhichpresentelectricaloutputsignals.Thisstandardappliestothespecificationofperformanceofinstrumentsoperatinginsteady-stateconditions(see3.1.15),usualinindustrialapplications.ItisbasedonthemethodsexpoundedinGUMforexpressingandevaluatingtheuncertaintyofmeasurement,andreferstoGUMforthestatisticalprocedurestobeusedindeterminingtheintervalsassignedtorepresentuncertainty(includingthewaytoaccountfornon-negligibleuncertaintiesinthetraceabilitychain).Thisstandarddoesnotaddressthepropagationofuncertaintybeyondtheinstrument(orthemeasuringequipment)whoseperformanceisconsideredandwhichmayundergocompliancetesting.Theobjectistoprovidemethodsforensuringuniformityinthespecificationanddeterminationofuncertaintiesofequipmentwithinitsscope.AllothernecessaryrequirementshavebeenreservedfordependentIECproductstandardspertainingtoparticulartypesofequipmentwhichfallwithinthescopeofthisstandard.Forexample:theselectionofmetrologicalcharacteristicsandtheirranges,andofinfluencequantitiesandtheirspecifiedoperatingranges,isreservedforIECproductstandards.
【中国标准分类号】:N10;L85
【国际标准分类号】:17_220_20;19_080
【页数】:67P.;A4
【正文语种】:英语