【英文标准名称】:StandardTestMethodforWaterPenetrationofExteriorMetalRoofPanelSystemsbyUniformStaticAirPressureDifference
【原文标准名称】:采用均匀静态空气压差分析外部金属屋面板系统防水漏性能的标准试验方法
【标准号】:ASTME1646-1995(2003)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:E06.57
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:漏泄试验;板;灰泥;建筑工程;压力试验;试验;均匀静态空气压差;均匀静态空气压差;蓄水屋面;雨;屋面板;侧边搭接;边缝;铺屋顶用的编织的柳条或榛树枝;均匀静态空气压差;结构建筑材料;热膨胀;水漏性;空气压力试验;外部金属屋面板系统;屋顶和防水材料;水;材料
【英文主题词】:air;airpressure;leakage;mastic;metal;panel;ponding;rain;roof;roofpanel;pressure;sidelap;sideseam;static;structural;thermalexpansion;water;waterleakage;waterpenetration;water-spray
【摘要】:Thistestmethodisastandardprocedurefordeterminingtheresistancetowaterpenetrationunderuniformpositivestaticairpressuredifferences,andsimulateswinddrivenrainimposedonsidelapsandrainthatisfreetodrainwhilebuildingawaterheadasitflows.Theslopeoftheroofissignificant.Thesefactorsshallbefullyconsideredpriortospecifyingthetestpressuredifference.Note18212;Inapplyingtheresultsoftestsbythismethod,notethattheperformanceofarooforitscomponents,orboth,maybeafunctionofproperinstallationandadjustment.Inservice,theperformancealsodependsontherigidityofsupportingconstruction,roofslope,andontheresistanceofcomponentstodeteriorationbyvariouscauses:corrosiveatmosphere,aging,ice,vibration,thermalexpansionandcontraction,etc.Itisdifficulttosimulatetheidenticalcomplexwettingconditionsthatcanbeencounteredinservice,includinglargewind-blownwaterdrops,increasingwaterdropimpactpressureswithincreasingwindvelocity,andlateralorupwardmovingairandwater.Somedesignsaremoresensitivethanotherstothisupwardmovingwater.Note28212;Thisisatestprocedure.Itistheresponsibilityofthespecifyingagencytodeterminethespecimenconstruction,size,andtestpressuresafterconsideringthemethodrsquo;guidelines.Practicalconsiderationssuggestthateverycombinationofpanelthickness,span,anddesignloadneednotbetestedinordertosubstantiateproductperformance.Note38212;Thistestmethodshallnot,byitself,bereliedupontoformconclusionsaboutoverallwaterpenetrationthroughmetalroofs.Aroofcontainsmanydetails.Althoughprescribedmodificationsareoutsidethescopeofthistestmethod,anexperiencedtestingengineerisabletousetheprinciplespresentedinthistestmethodandgeneratesignificantdatabyisolatingspecificdetailsandmeasuringleakage.1.1Thistestmethodcoversthedeterminationoftheresistanceofexteriormetalroofpanelsystemstowaterpenetrationwhenwaterisappliedtotheoutdoorfacesimultaneouslywithastaticairpressureattheoutdoorfacehigherthanthepressureattheindoorface,thatis,positivepressure.ThistestmethodisaspecializedadaptionofTestMethodE331.1.2Thistestmethodisapplicabletoanyroofareaandisintendedtomeasureonlythewaterpenetrationassociatedwiththefieldofroofincludingpanelsidelapsandstructuralconnections.Itdoesnotincludeleakageatopeningsorperimeteroranyotherdetails.1.3Thistestmethodislimitedtospecimensinwhichthesideseamsandattachmentsareclearlyvisibleandinwhichthesourceofleakageisreadilydetermined.Compositesystemsinwhichthesourcecannotbereadilydeterminedareoutsidethescopeofthistestmethod.1.4Theproperuseofthistestmethodrequiresaknowledgeoftheprinciplesofpressureandflowmeasurement.1.5Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonlyandmaybeapproximate.1.6Thetextofthistestmethodreferencesnotesandfootnotesexcludingtablesandfigures,whichprovideexplanatorymaterial.Thesenotesandfootnotesshallnotbeconsideredasrequirementsofthetestmethod.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see7.1.
【中国标准分类号】:P32
【国际标准分类号】:91_060_20
【页数】:6P.;A4
【正文语种】:
基本信息
| 标准名称： | 森林铁路线路和信号标志 |
| 中标分类： |
铁路 >>
铁路综合 >>
基础标准与通用方法 |
| 发布日期： | 1991-04-30 |
| 实施日期： | 1992-01-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 23页 |
适用范围
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前言
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引用标准
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所属分类： 铁路 铁路综合 基础标准与通用方法