BS EN 4165-018-2008 航空航天系列.矩形模数电连接器.连续工作温度为175℃.系列2和系列3的2或4模块插座用保护罩.产品标准

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【英文标准名称】:Aerospaceseries-Connectors,electrical,rectangular,modular-Operatingtemperature175°Ccontinuous-Protectivecoverforreceptacle2or4modules,series2andseries3.Productstandard
【原文标准名称】:航空航天系列.矩形模数电连接器.连续工作温度为175℃.系列2和系列3的2或4模块插座用保护罩.产品标准
【标准号】:BSEN4165-018-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-02-29
【实施或试行日期】:2008-02-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;航空运输;航空器部件;设计;名称与符号;电连接器;电插头;电气工程;多语种的;插头;产品标准;特性;护罩;矩形连接器;航天运输;规范(验收);工具;类型
【英文主题词】:
【摘要】:
【中国标准分类号】:V25
【国际标准分类号】:49_060
【页数】:10P;A4
【正文语种】:英语


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【英文标准名称】:StandardPracticeforDeterminingtheActivationSpectrumofaMaterial(WavelengthSensitivitytoanExposureSource)UsingtheSharpCut-OnFilterorSpectrographicTechnique
【原文标准名称】:用锐截止-打开滤波器或光谱方法测定材料激活光谱(对辐照源的波长敏感性)的标准实施规程
【标准号】:ASTMG178-2009
【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】:G03.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:activationspectrum;cumulativespectralsensitivitycurve;degradation;lightexposure;sharpcut-onfiltertechnique;spectrographictechnique;ultravioletradiation;Actinicradiation;Activationenergy;Lightexposure;Sharpcut-onfiltertechni
【摘要】:Theactivationspectrumidentifiesthespectralregion(s)ofthespecificexposuresourceusedthatmaybeprimarilyresponsibleforchangesinappearanceand/orphysicalpropertiesofthematerial.Thespectrographictechniqueusesaprismorgratingspectrographtodeterminetheeffectonthematerialofisolatednarrowspectralbandsofthelightsource,eachintheabsenceofotherwavelengths.Thesharpcut-onfiltertechniqueusesaspeciallydesignedsetofsharpcut-onUV/visibletransmittingglassfilterstodeterminetherelativeactiniceffectsofindividualspectralbandsofthelightsourceduringsimultaneousexposuretowavelengthslongerthanthespectralbandofinterest.Boththespectrographicandfiltertechniquesprovideactivationspectra,buttheydifferinseveralrespects:Thespectrographictechniquegenerallyprovidesbetterresolutionsinceitdeterminestheeffectsofnarrowerspectralportionsofthelightsourcethanthefiltertechnique.Thefiltertechniqueismorerepresentativeofthepolychromaticradiationtowhichsamplesarenormallyexposedwithdifferent,andsometimesantagonistic,photochemicalprocessesoftenoccurringsimultaneously.However,sincethefiltersonlytransmitwavelengthslongerthanthecut-onwavelengthofeachfilter,antagonisticprocessesbywavelengthsshorterthanthecut-onareeliminated.Inthefiltertechnique,separatespecimensareusedtodeterminetheeffectofthespectralbandsandthespecimensaresufficientlylargeformeasurementofbothmechanicalandopticalchanges.Inthespectrographictechnique,exceptinthecaseofspectrographsaslargeastheOkazakitype(1),asinglesmallspecimenisusedtodeterminetherelativeeffectsofallthespectralbands.Thus,propertychangesarelimitedtothosethatcanbemeasuredonverysmallsectionsofthespecimen.Theinformationprovidedbyactivationspectraonthespectralregionofthelightsourceresponsibleforthedegradationintheoryhasapplicationtostabilizationaswellastostabilitytestingofpolymericmaterials(2).Activationspectrabasedonexposureoftheunstabilizedmaterialtosolarradiationidentifythelightscreeningrequirementsandthusthetypeofultravioletabsorbertouseforoptimumscreeningprotection.ThecloserthematchoftheabsorptionspectrumofaUVabsorbertotheactivationspectrumofthematerial,themoreeffectivethescreening.However,agoodmatchoftheUVabsorptionspectrumoftheUVabsorbertotheactivationspectrumdoesnotnecessarilyassureadequateprotectionsinceitisnottheonlycriteriaforselectinganeffectiveUVabsorber.Factorssuchasdispersion,compatibility,migrationandotherscanhaveasignixFB01;cantinxFB02;uenceontheeffectivenessofaUVabsorber(seeNote3).Theactivationspectrummustbedeterminedusingalightsourcethatsimulatesthespectralpowerdistributionoftheonetowhichthematerialwillbeexposedunderuseconditions.Note38212;InastudybyASTMG03.01,theactivationspectrumofacopolyesterbasedonexposuretoborosilicateglass-filteredxenonarcradiationpredictedthatUVabsorberAwouldbesuperiortoUVabsorberBinoutdoorusebecauseofstrongerabsorptionoftheharmfulwavelengthsofsolarsimulatedradiation.However,bothadditivesprotectedthecopolyestertothesameextentwhenexposedeithertoxenonarcradiationoroutdoors.Comparisonoftheactivationspectrumofthestabilizedwiththatoftheunstabilizedmaterialprovidesinformationonthecompletenessofscreeningandidentifiesanyspectralregionsthatarenotadequatelyscreened.Comparisonoftheactivationspectrumof.........
【中国标准分类号】:G04
【国际标准分类号】:71_040_50
【页数】:12P.;A4
【正文语种】:英语


【英文标准名称】:Fasteners;technicaldeliveryconditions;hot-dipgalvanizedparts
【原文标准名称】:紧固件.交货技术条件.热镀锌零件
【标准号】:DIN267T.10-1988
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
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