ANSI INCITS 82-1980 单面单一密度未格式化的5.25-Inch软盘盒(为3979-BPR使用)[被代替:ANSIX3.82]
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来源:标准资料网
【英文标准名称】:One-SidedSingle-DensityUnformatted5.25-InchFlexibleDiskCartridge(for3979-BPRUse)[Replaced:ANSIX3.82]
【原文标准名称】:单面单一密度未格式化的5.25-Inch软盘盒(为3979-BPR使用)[被代替:ANSIX3.82]
【标准号】:ANSIINCITS82-1980
【标准状态】:现行
【国别】:美国
【发布日期】:1980-06-06
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thisstandardspecifiesgeneral,physical,andmagneticrequirementsforinterchangeablityoftheone-sided5.25-inch(nominal)flexiblediskcartridge-foruseat3979bitsperradian(BPR)-asrequiredtoachieveunformatteddiskcartridgeinterchangeamongdiskdrivesusing35tracks(canbenegoitiatedbetweenconcernedpartiesforuseindrivesusingupto40tracks)andassociatedinformationprocessingsystems.Theone-sidedflexiblediskcartridge(for3979-BPRuse),enclosedinaprotectiveenvelopeandhavingatleastonerecordingsurface,isathetypeintendedspecificallyequipmentemployingaccessmechanismscapableofpositioningtothesedatatracks.
【中国标准分类号】:L64
【国际标准分类号】:35_220_21
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforElevatedTemperatureTensionTestsofMetallicMaterials
【原文标准名称】:金属材料高温抗拉试验的标准试验方法
【标准号】:ASTME21-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:抗拉试验;材料;机械试验;试验;金属;热试验;金属的
【英文主题词】:
【摘要】:Theelevated-temperaturetensiontestgivesausefulestimateoftheabilityofmetalstowithstandtheapplicationofappliedtensileforces.Usingestablishedandconventionalrelationshipsitcanbeusedtogivesomeindicationofprobablebehaviorunderothersimplestatesofstress,suchascompression,shear,etc.Theductilityvaluesgiveacomparativemeasureofthecapacityofdifferentmaterialstodeformlocallywithoutcrackingandthustoaccommodatealocalstressconcentrationoroverstress;however,quantitativerelationshipsbetweentensileductilityandtheeffectofstressconcentrationsatelevatedtemperaturearenotuniversallyvalid.Asimilarcomparativerelationshipexistsbetweentensileductilityandstrain-controlled,low-cyclefatiguelifeundersimplestatesofstress.Theresultsofthesetensiontestscanbeconsideredasonlyaquestionablecomparativemeasureofthestrengthandductilityforservicetimesofthousandsofhours.Therefore,theprincipalusefulnessoftheelevated-temperaturetensiontestistoassurethatthetestedmaterialissimilartoreferencematerialwhenothermeasuressuchaschemicalcompositionandmicrostructurealsoshowthetwomaterialsaresimilar.1.1Thesetestmethodscoverprocedureandequipmentforthedeterminationoftensilestrength,yieldstrength,elongation,andreductionofareaofmetallicmaterialsatelevatedtemperatures.1.2Determinationofmodulusofelasticityandproportionallimitarenotincluded.1.3Tensiontestsunderconditionsofrapidheatingorrapidstrainratesarenotincluded.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H23
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:StandardPracticeforSamplingSpecialNuclearMaterialsinMulti-ContainerLots
【原文标准名称】:多个容器堆中专用核材料取样
【标准号】:ASTMC970-1987(2006)
【标准状态】:现行
【国别】:
【发布日期】:1987
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C26.08
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:材料;容器;工艺;抽样方法;核能;核技术
【英文主题词】:
【摘要】:Plansforsamplingandanalysisofnuclearmaterialaredesignedwithtwopurposesinmind:thefirstisrelatedtomaterialaccountabilityandthesecondtomaterialspecifications.Fortheaccountingofspecialnuclearmaterial,samplingandanalysisplansshouldbeestablishedtodeterminethequantityofspecialnuclearmaterialheldininventory,shippedbetweenbuyersandsellers,ordiscarded.Likewise,materialspecificationrequiresthedeterminationofthequantityofnuclearmaterialpresent.Inevitablythereisuncertaintyassociatedwithsuchmeasurements.Thispracticepresentsatoolfordevelopingsamplingplansthatcontroltherandomerrorcomponentofthisuncertainty.Precisionandaccuracystatementsarehighlydesirable,ifnotrequired,toqualifymeasurementmethods.Thispracticerelatestox201C;precisionx201D;thatisgenerallyastatementontherandomerrorcomponentofuncertainty.1.1Thispracticeprovidesanaidindesigningasamplingandanalysisplanforthepurposeofminimizingrandomerrorinthemeasurementoftheamountofnuclearmaterialinalotconsistingofseveralcontainers.Theproblemaddressedistheselectionofthenumberofcontainerstobesampled,thenumberofsamplestobetakenfromeachsampledcontainer,andthenumberofaliquotanalysestobeperformedoneachsample.1.2Thispracticeprovidesexamplesforapplicationaswellasthenecessarydevelopmentforunderstandingthestatisticsinvolved.Theuniquenessofmostsituationsdoesnotallowpresentationofstep-by-stepproceduresfordesigningsamplingplans.Itisrecommendedthatastatisticianexperiencedinmaterialssamplingbeconsultedwhendevelopingsuchplans.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F46
【国际标准分类号】:27_120_30
【页数】:7P.;A4
【正文语种】:
