ASTM B212-2009 高流动性金属粉末表观密度的测试方法

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【英文标准名称】:StandardTestMethodforApparentDensityofFree-FlowingMetalPowdersUsingtheHallFlowmeterFunnel
【原文标准名称】:高流动性金属粉末表观密度的测试方法
【标准号】:ASTMB212-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:B09.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:表观密度
【英文主题词】:apparentdensity;Hallflowmeterfunnel;metalpowders;Density--metalpowders(P/M);Free-flowingmetalpowders;Metalpowders
【摘要】:Thistestmethodprovidesaguideforevaluationofanimportantphysicalcharacteristicofapowderknownastheapparentdensity.Themeasuredapparentdensitybearsarelationshiptothemassofpowderthatwillfillafixedvolumediecavity.Thedegreeofcorrelationbetweentheresultsofthistestandtheperformanceofpowdersduringusemayvarywitheachparticularapplication.Note,however,thatthepresenceofmoisture,oils,stearicacid,stearates,waxes,andthetemperatureofthepowdermassmayalterthephysicalcharacteristicsofthepowder.1.1Thistestmethoddescribesaprocedurefordeterminingtheapparentdensityoffree-flowingmetalpowders,andmixedpowders;andissuitableforonlythosepowdersthatwillflowunaidedthroughthespecifiedHallFlowmeterfunnel.1.2Withtheexceptionofdensityvalues,forwhichtheg/cm3unitistheindustrystandard,thevaluesstatedinSIunitsaretoberegardedasthestandard.Valuesininch-poundunitsareshowninparenthesesandresultfromconversioninaccordancewithIEEE/ASTMStandardSI10.Theymaybeapproximateandareonlyforinformation.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H16
【国际标准分类号】:77_160
【页数】:3P.;A4
【正文语种】:英语


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【英文标准名称】:Informationanddocumentation-Libraryperformanceindicators
【原文标准名称】:信息和文献工作.图书馆工效指标
【标准号】:ISO11620-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-08-15
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC46
【标准类型】:()
【标准水平】:()
【中文主题词】:可访问性;定义;文献;效率;信息;借阅设备;图书馆;图书馆学与情报学;图书馆流通工作;图书馆学;服务设施;服务;目标群
【英文主题词】:Accessibility;Definition;Definitions;Documentations;Efficiency;Information;Lendingservices;Libraries;Libraryandinformationscience;Librarycirculationwork;Libraryscience;Services;Targetgroups
【摘要】:ThisInternationalStandardspecifiestherequirementsofaperformanceindicatorforlibrariesandestablishesasetofperformanceindicatorstobeusedbylibrariesofalltypes.Italsoprovidesguidanceonhowtoimplementperformanceindicatorsinlibrarieswheresuchperformanceindicatorsarenotalreadyinuse.ThelistofperformanceindicatorsaresummarizedinAnnexAanddetailsgiveninAnnexB.ThisInternationalStandardprovidesastandardizedterminologyandconcisedefinitionsoftheperformanceindicators.Furthermore,thisInternationalStandardcontainsconcisedescriptionsoftheperformanceindicatorsandofthecollectionandtheanalysisofdataneeded.ThisInternationalStandardisapplicabletoalltypesoflibrariesinallcountries.However,notallperformanceindicatorsareapplicabletoalllibraries.LimitationsontheapplicabilityofindividualperformanceindicatorsarelistedforeachperformanceindicatorinAnnexB.ThisInternationalStandarddoesnotspecifyperformanceindicatorsforallservices,activities,andusesoftheresourcesofthelibrary,eitherbecausesuchperformanceindicatorshadnotbeenproposedandtestedatthetimeofformulationofthisInternationalStandard,orbecausetheydidnotfulfilthecriteriaspecified(see4.2).
【中国标准分类号】:A14
【国际标准分类号】:01_140_20
【页数】:93P.;A4
【正文语种】:英语


基本信息
标准名称:铁路桥涵施工规范(1996年局部修订版)
中标分类: 工程建设 >> 工程结构 >> 桥涵工程
替代情况:TBJ 203-1986;被TB 10203-2002代替
发布日期:
实施日期:2000-06-01
首发日期:
作废日期:
出版日期:
页数:216页
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所属分类: 工程建设 工程结构 桥涵工程