ASTM D 2351-1990 从可还原溶剂型涂料分离出的白色颜料中硫化物的标准试验方法

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下一篇: ASTM D 2350-1990 从可还原溶剂型涂料分离出的白色颜料中氧化锑的试验方法

【英文标准名称】:Connectorsforelectronicequipment-Productrequirements-Part3-104:Detailspecificationfor8-way,shieldedfreeandfixedconnectorsfordatatransmissionswithfrequenciesupto1000MHz(IEC61076-3-104:2006);GermanversionEN61076-3-104:2006
【原文标准名称】:电子设备用连接器.产品要求.第3-104部分:频率在1000MHz及以下的数据传输用8路、非屏蔽和固定式连接器的详细规范(IEC61076-3-104:2006)
【标准号】:DINEN61076-3-104-2007
【标准状态】:现行
【国别】:德国
【发布日期】:2007-07
【实施或试行日期】:2007-07-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:音频系统;插接件连接;数据通信;数据传送;定义;详细规范;数字工程;尺寸;直流电压;电插头;电气工程;电子工程;电子设备;评定;高速;低频;网络;印制电路;特性;合格试验;质量;质量评定;额定值;矩形连接器;分规范;屏蔽的;防护屏蔽;规范;测试;传输特性
【英文主题词】:
【摘要】:
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:87P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodsforTensionTestingofMetallicMaterials
【原文标准名称】:金属材料抗拉的标准试验方法
【标准号】:ASTME8/E8M-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】:E28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:准确度
【英文主题词】:accuracy;bendingstress;discontinuousyielding;drop-of-the-beam;eccentricforceapplication;elasticextension;elongation;extension-under-load;extensometer;force;free-runningcrossheadspeed;gagelength;halt-of-theforce;percentelo
【摘要】:Tensiontestsprovideinformationonthestrengthandductilityofmaterialsunderuniaxialtensilestresses.Thisinformationmaybeusefulincomparisonsofmaterials,alloydevelopment,qualitycontrol,anddesignundercertaincircumstances.Theresultsoftensiontestsofspecimensmachinedtostandardizeddimensionsfromselectedportionsofapartormaterialmaynottotallyrepresentthestrengthandductilitypropertiesoftheentireendproductoritsin-servicebehaviorindifferentenvironments.Thesetestmethodsareconsideredsatisfactoryforacceptancetestingofcommercialshipments.Thetestmethodshavebeenusedextensivelyinthetradeforthispurpose.1.1Thesetestmethodscoverthetensiontestingofmetallicmaterialsinanyformatroomtemperature,specifically,themethodsofdeterminationofyieldstrength,yieldpointelongation,tensilestrength,elongation,andreductionofarea.1.2Thegagelengthsformostroundspecimensarerequiredtobe4DforE8and5DforE8M.ThegagelengthisthemostsignificantdifferencebetweenE8andE8MTestSpecimensTestspecimensmadefrompowdermetallurgy(P/M)materialsareexemptfromthisrequirementbyindustry-wideagreementtokeepthepressingofthematerialtoaspecificprojectedareaanddensity.1.3Exceptionstotheprovisionsofthesetestmethodsmayneedtobemadeinindividualspecificationsortestmethodsforaparticularmaterial.Forexamples,seeTestMethodsandDefinitionsA370andTestMethodsB557,andB557M.1.4Roomtemperatureshallbeconsideredtobe10to38x00B0;C[50to100x00B0;F]unlessotherwisespecified.1.5ThevaluesstatedinSIunitsaretoberegardedasseparatefrominch/poundunits.Thevaluesstatedineachsystemarenotexactequivalents;thereforeeachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:27P.;A4
【正文语种】:英语