DIN EN 4233-2002 航空航天系列.钛合金管连接件8°30'.带螺纹的焊接管接头;德文版本EN4233:2001
时间:2024-05-12 12:08:12 来源: 标准资料网 作者：标准资料网 阅读：9091
【英文标准名称】:Aerospaceseries-Pipecoupling8°30intitaniumalloy-Unions,welded,threaded;GermanversionEN4233:2001
【原文标准名称】:航空航天系列.钛合金管连接件8°30'.带螺纹的焊接管接头;德文版本EN4233:2001
【标准号】:DINEN4233-2002
【标准状态】:现行
【国别】:德国
【发布日期】:2002-08
【实施或试行日期】:
【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】:钛合金;管道系统;航空航天运输;公差(测量);管道;直通联接器;规范(验收);螺纹件;名称与符号;设计;尺寸;多语种的;航天运输;作标记;飞行器;航空运输;压合接头;焊接;管连接件;验收规范;交货条件;流体技术;液压系统
【英文主题词】:
【摘要】:Thespecificationslaiddowninthisdocumentapplytocharacteristicsofunions,weldedintitaniumalloyintendedforuseinaircraftfluidsystempipelines.#,,#
【中国标准分类号】:V21
【国际标准分类号】:49_080
【页数】:8P;A4
【正文语种】:德语
【英文标准名称】:Industrialautomationsystemsandintegration.Productdatarepresentationandexchange.Part109:Integratedapplicationresource:Kinematicandgeometricconstraintsforassemblymodels;TECHNICALCORRIGENDUM1
【原文标准名称】:工业自动化系统和集成.产品数据表示和交换.第109部分:集成应用资源:装配模型用运动学和几何约束.技术勘误表1
【标准号】:ISO10303-109TechnicalCorrigendum1-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-12-01
【实施或试行日期】:2010-12-01
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC184
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Industrialautomationsystemsandintegration.Productdatarepresentationandexchange.Part109:Integratedapplicationresource:Kinematicandgeometricconstraintsforassemblymodels;TECHNICALCORRIGENDUM1
【中国标准分类号】:
【国际标准分类号】:25_040_40
【页数】:2P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforDeterminingAirLeakageofAirDistributionSystemsbyFanPressurization
【原文标准名称】:风扇增压法测定空气分布系统的漏气量的标准试验方法
【标准号】:ASTME1554-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:E06.41
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:空气分布;测试;通风设备;通风机
【英文主题词】:airdistribution;airleakage;distributionsystem;ducts;fieldmethod
【摘要】:Airleakagebetweenanairdistributionsystemandunconditionedspacesaffectstheenergylossesfromthedistributionsystem,theventilationrateofthebuilding,andtheentryrateofairpollutants.Thedeterminationofinfiltrationenergyloadsandventilationratesofresidencesandsmallcommercialbuildingsaretypicallybasedontheassumptionthattheprincipaldrivingforcesforinfiltrationandventilationarethewindandindoor/outdoortemperaturedifferences.Thiscanbeaninappropriateassumptionforbuildingsthathavedistributionsystemsthatpassthroughunconditionedspaces,becausetheexistenceofrelativelymodestleakagefromthatsystemhasarelativelylargeimpactonoverallventilationrates.Theairleakagecharacteristicsoftheseexteriordistributionsystemsareneededtodeterminetheirventilation,energy,andpollutant-entryimplications.Airleakagethroughtheexteriorairdistributionenvelopemaybetreatedinthesamemannerasairleakageinthebuildingenvelopeaslongasthesystemisnotoperating(seeTestMethodE779).However,whenthesystemblowerison,thepressuresacrosstheairdistributionsystemleaksareusuallysignificantlylargerthanthosedrivingnaturalinfiltration.Dependingonthesizeoftheleaks,thesepressurescaninducemuchlargerflowsthannaturalinfiltration.Thus,itisimportanttobeabletoisolatetheseleaksfrombuildingenvelopeleaks.Theleakageofairdistributionsystemsmustbemeasuredinthefield,becauseithasbeenshownthatworkmanshipandinstallationdetailsaremoreimportantthandesignindeterminingtheleakageofthesesystems.Forcodes,standards,andothercomplianceorqualitycontrolapplications,theprecisionandrepeatabilityatmeetingaspecifiedtarget(forexample,airflowatreferencepressure)ismoreimportantthanairleakageflowsatoperatingconditions.Someexistingcodes,standards,andvoluntaryprogramsrequiretheuseofasimplertestmethod(TestMethodD)thatdoesnotseparatesupplyfromreturnleakage,leakagetoinsidefromleakagetooutside,orestimateleakagepressuresatoperatingconditions.5.5TestMethodsA,B,andCcanbeusedforenergyusecalculationsandcomplianceandqualitycontrolapplications.TestMethodDisintendedforuseincomplianceandqualitycontrolonly.1.1Thetestmethodsincludedinthisstandardareapplicabletotheairdistributionsystemsinlow-riseresidentialandcommercialbuildings.1.2Thesetestmethodscoverfourtechniquesformeasuringtheairleakageofairdistributionsystems.Thetechniquesuseairflowandpressuremeasurementstodeterminetheleakagecharacteristics.1.3Thetestmethodsfortwoofthetechniquesalsospecifytheauxiliarymeasurementsneededtocharacterizethemagnitudeofthedistributionsystemairleakageduringnormaloperation.1.4Atestmethodforthetotalrecirculatingairflowinducedbythesystemblowerisincludedsothattheairdistributionsystemleakagecanbenormalizedasisoftenrequiredforenergycalculations.1.5Theproperuseofthesetestmethodsrequiresknowledgeoftheprinciplesofairflowandpressuremeasurements.1.6Threeofthesetestmethodsareintendedtoproduceameasureoftheairleakagefromtheairdistributionsystemtooutside.Theothertestmethodmeasurestotalairleakageincludingairleakstoinsideconditionedspace.1.7ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.