ASTM D 3971-1989 纤维素中二氯甲烷可溶物的标准试验方法

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【英文标准名称】:F19Typeconnectorsforopticalfibercables
【原文标准名称】:F19型光缆连接器
【标准号】:JISC5988-2005
【标准状态】:现行
【国别】:日本
【发布日期】:2005-12-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonElectronics
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:この規格は,JISC5962において規定されているレバーロック構造及びガイドピンで整列させるフェルール構造を備えたプラグ(接栓)ーアダプタープラグ及びプラグーレセプタクル結合方式による,一般にMT-RJコネクタと呼ばれるF19形光ファイバコネクタ(以下,光コネクタという。)について規定する。
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:40P;A4
【正文语种】:日语


【英文标准名称】:StandardGuideforDescribingandSpecifyingtheSpectrometerofanOpticalEmissionDirect-ReadingInstrument
【原文标准名称】:光学辐射直读仪表的分光计的描述与规定用标准指南
【标准号】:ASTME1507-1998(2003)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:E01.20
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:测量仪器;分光计;光学测量;辐射测量仪表
【英文主题词】:astigmatism;detection;diffractiongrating;direct-readingspectrometer;lineinterference;opticalemissionspectrometer(OES);opticalworkingresolution;radiationthroughput;scatteredlight
【摘要】:Direct-readingpolychromatorsareinstrumentscommonlyusedformulti-elementspectrochemicalanalysis.Thisguideseekstodescribethoseaspectsofsuchinstrumentsthatareofsignificanceinachievingusefulspectrochemicalperformance.Awarenessofparametersdescribedinthispracticewillmakemanufacturerscognizantoffactorstheyshouldconsiderindesigninginstruments,assistpurchasersofinstrumentsinmakingintelligentcomparisonsofcompetingdesigns,andmakeusersawareofthecompromisestheymustmakeinperformingparticulardeterminations.Adequatedescriptionofspectrometerspermitsformingqualifiedappraisalsonthreeimportantperformancecharacteristics:accuracyofanalysis,detectionlimits,andfreedomfromlineinterferences.1.1Thisguidecoversfeaturesofaspectrometerorpolychromatorusedforopticalemission,direct-reading,spectrochemicalanalysis.Apolychromatorinthissenseconsistsofaspectrometerwithanextendedandfixedwavelengthrangeandanarrayoffixedexitslitstoisolatethespectrallinesoftheelementstobemeasured.1.1.1Thisguidedoesnotapplytodirect-readingsystemsthatemployechellespectrometersandvidiconorotherdetectorswherethedesignparametersarequitedifferent.1.2Thisguidecoversonlytheopticalportionoftheinstrument,fromexcitationstandtophotomultipliers.1.2.1Onlygeneralstatementsaremadeaboutsourceunits.1.2.2Photomultipliersareincludedtotheextentthattheyaremountedwithinthespectrometertoconvertopticalintensitiestoelectricalsignals,andestablishtheinstrumentalprecisionofeachchannelasalightmeasuringdevice.Readoutsystemsarenotincluded.1.3Itisnotthepurposeofthisguidetoestablishbindingspecificationsortolerances,butrather,tocallattentiontoimportantparametersthatmanufacturersshouldincludeintheirliterature,toprovidemethodsformeasuringthoseparameters,andtoassignvaluesthatareindicativeofacceptablygoodperformance.Becauseofthegreatvarietyofdemandsimposedbyspectrochemicaltechniques,rigidperformancecriteriaarenotfeasible.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N34
【国际标准分类号】:17_180_30
【页数】:17P.;A4
【正文语种】: