ISO 7967-5-1992 往复式内燃机.部件和系统的词汇.第5部分:冷却系统

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【英文标准名称】:StandardTestMethodforSaturatedWaterPermeabilityofGranularDrainageMedia[Falling-HeadMethod]forGreenRoofSystems
【原文标准名称】:新暴露顶板系统用粒状排水介质(落差法)的饱和水渗透性的标准试验方法
【标准号】:ASTME2396-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:E60.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:granular,coarseaggregate;greenroof;low-head;waterpermeability
【摘要】:Thistestmethodaddressesperformancecharacteristicsforgreenroofsystemswithrespecttothewaterpermeabilityofthedrainagemedia.5.1.1Waterpermeabilityofcoarsematerialsishighlyinfluencedbytheheadconditionsunderwhichitismeasured.Ingreenroofs,coarsematerialsarefrequentlyusedtocreatedrainagezonesforpercolatedrainfall.5.1.2Thistestmethodisintendedtoprovidewaterpermeabilitydatathatisrelevanttothisdesignconditionthatischaracterizedbyhorizontalflowunderlow-head.Thiswillalsoallowtheperformanceofgranulardrainagelayersingreenroofsystemstobecompareddirectlytoalternativecomponents,suchasgeocompositedrainlayers.Determiningtheperformancecharacteristicsofgreenroofsystemsprovidesinformationtofacilitatetheassessmentofrelatedengineeringaspectsofthefacility.Suchaspectsmayincludestructuraldesignrequirements,mechanicalengineeringandthermaldesignrequirements,andfireandlifesafetyrequirements.Determiningtheperformancecharacteristicsofgreenroofsystemsprovidesinformationtofacilitateassessmentoftheperformanceofonegreenroofsystemrelativetoanother.1.1Thistestmethodcoversaprocedurefordeterminingthewaterpermeabilityofcoarsegranularmaterialsusedinthedrainagelayersofgreenroofsystems.1.2Thistestmethodaddresseswaterpermeabilityunderthelow-headconditionsthattypifyhorizontalflowingreenroofapplications.1.3Thistestmethodissuitableforcoarse-grainedmaterialswith100%ofthematerialretainedontheU.S.8(2.25mm)sieve.Itisnotsuitableforfiner-grainedmaterials.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q17
【国际标准分类号】:65_020_20;91_060_20
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:PassiveRFandmicrowavedevices,intermodulationlevelmeasurement-Part3:Measurementofpassiveintermodulationincoaxialconnectors
【原文标准名称】:无源无线电频率(RF)和微波器件,内调水平测量.第3部分:同轴电缆连接器中的无源互调测量
【标准号】:IEC62037-3-2012
【标准状态】:现行
【国别】:国际
【发布日期】:2012-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC46
【标准类型】:()
【标准水平】:()
【中文主题词】:同轴连接器;插接件连接;电气工程;高频;检验;干扰;干扰信号;互相调制;调制因子;测量;测量技术;无源的;插头;射频连接;射频连接器;样品;应力;试验
【英文主题词】:Coaxialconnectors;Connectoredjoints;Electricalengineering;Highfrequencies;Inspection;Interferences;Interferingsignals;Intermodulation;Intermodulationfactor;Measurement;Measuringtechniques;Passive;Plugs;Radiofrequencyconnections;Radiofrequencyconnectors;Specimens;Stress;Testing
【摘要】:
【中国标准分类号】:L10
【国际标准分类号】:33_040_20;33_120_30
【页数】:8P;A4
【正文语种】:英语