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ASTM E2374-2004 声学发射系统性能验证的标准指南

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【英文标准名称】:StandardGuideforAcousticEmissionSystemPerformanceVerification
【原文标准名称】:声学发射系统性能验证的标准指南
【标准号】:ASTME2374-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:E07.04
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:性能;声学的;验证;发射
【英文主题词】:acousticemission;performanceverification;systemverification
【摘要】:1.1Systemperformanceverificationmethodsstimulatetheexaminationarticleonwhichthesensorismounted.Theresultingstresswavetravelsintheexaminationarticleandisdetectedbythesensor(s)inamannersimilartoacousticemission.1.2ThisguidedescribesmethodswhichcanbeusedtoverifytheresponseofanAcousticEmissionsystemincludingsensors,couplant,sensormountingdevices,cablesandsystemelectroniccomponents.1.3Acousticemissionsystemperformancecharacteristics,whichmaybeevaluatedusingthisdocument,includesomewaveformparameters,andsourcelocationaccuracy.1.4Performanceverificationisusuallyconductedpriortobeginningtheexamination.1.5Performanceverificationcanbeconductedduringtheexaminationifthereisanysuspicionthatthesystemperformancemayhavechanged.1.6Performanceverificationmaybeconductedaftertheexaminationhasbeencompleted.
【中国标准分类号】:N65
【国际标准分类号】:17_140_01
【页数】:5P.;A4
【正文语种】:


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【英文标准名称】:Sodiumhydroxideforindustrialuse;Determinationofmercurycontent;Dithizonephotometricmethod
【原文标准名称】:工业用氢氧化钠.汞含量的测定.双硫腙光度法
【标准号】:ISO5992-1979
【标准状态】:作废
【国别】:国际
【发布日期】:1979-09
【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】:氢氧化钠;化学分析;分光光度法;光度测量法(化学分析);双硫腙;含量测定;分光光度测量分析;化学分析和试验;汞
【英文主题词】:photometry(chemicalanalysis);determinationofcontent;spectrophotometry;sodiumhydroxide;chemicalanalysisandtesting;mercury;dithizone
【摘要】:
【中国标准分类号】:G10
【国际标准分类号】:71_060_40
【页数】:5P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforCollectionofaGrossSampleofCoal
【原文标准名称】:煤的总样品收集用标准实施规程
【标准号】:ASTMD2234/D2234M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:D05.23
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:采煤样系统
【英文主题词】:Coalsamplingsystems
【摘要】:Itisintendedthatthispracticebeusedtoprovideasamplerepresentativeofthecoalfromwhichitiscollected.Becauseofthevariabilityofcoalandthewidevarietyofsamplingequipment,cautionshouldbeusedinallstagesofsamplingfromsystemspecificationsandequipmentprocurementtoequipmentacceptancetestingandactuallytakingthefinalsample.Afterfurtherprocessing(PracticeD2013),thesamplemaybeanalyzedforanumberofdifferentparameters.Theseparametersmayaffectthelot''svalue,itsabilitytomeetspecifications,itsenvironmentalimpact,aswellasotherproperties.1.1Thispracticecoversproceduresforthecollectionofasampleundervariousconditionsofsampling.ThesampleistobecrushedandfurtherpreparedforanalysisinaccordancewithPracticeD2013.However,theproceduresfordividinglargesamplesbeforeanycrushingaregiveninthispractice.ForthesamplingofcoalusingmechanicalsamplingsystemsseeD7430PracticefortheMechanicalSamplingofCoal.1.2Thispracticedescribesgeneralandspecialpurposesamplingproceduresforcoals(1)bysizeandconditionofpreparation(forexample,mechanicallycleanedcoalorrawcoal)and(2)bysamplingcharacteristics.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:D21
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】: