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【英文标准名称】:StandardTestMethodforDeterminingtheIntegrityofNonreinforcedGeomembraneSeamsProducedUsingThermo-FusionMethods
【原文标准名称】:热溶法测定非增强土工薄膜接缝完整性搭标准试验方法
【标准号】:ASTMD6392-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D35.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Destructivetesting--soil/rock;FPP(flexiblepolypropylene);Geomembranes;HDPE(high-densitypolyethylene);Integritytesting;LLDPE(linearlow-densitypolyethylene);LMDPE(linearmediumdensitypolyethylene);Nonreinforcedgeomembraneseams;Poly(vin
【摘要】:Theuseofgeomembranesasbarriermaterialstorestrictliquidmigrationfromonelocationtoanotherinsoilandrockhascreatedaneedforastandardtestmethodtoevaluatethequalityofgeomembraneseamsproducedbythermo-fusionmethods.Inthecaseofgeomembranes,ithasbecomeevidentthatgeomembraneseamscanexhibitseparationinthefieldundercertainconditions.Althoughthisisanindextypetestmethodusedforqualityassuranceandqualitycontrolpurposes,itisalsointendedtoprovidethequalityassuranceengineerwithsufficientseampeelandsheardatatoevaluateseamquality.Recordingandreportingdata,suchasseparationthatoccursduringthepeeltestandelongationduringthesheartest,willallowthequalityassuranceengineertotakemeasuresnecessarytoensuretherepairofinferiorseamsduringfacilityconstruction,andtherefore,minimizethepotentialforseamseparationinservice.1.1Thistestmethoddescribesdestructivequalitycontrolandqualityassurancetestsusedtodeterminetheintegrityofgeomembraneseamsproducedbythermo-fusionmethods.Thistestmethodpresentstheproceduresusedfordeterminingthequalityofnonbituminousbondedseamssubjectedtobothpeelandsheartests.Thesetestproceduresareintendedfornonreinforcedgeomembranesonly.1.2Thetypesofthermalfieldseamingtechniquesusedtoconstructgeomembraneseamsincludethefollowing.1.2.1HotAir8212;Thistechniqueintroduceshigh-temperatureairorgasbetweentwogeomembranesurfacestofacilitatemelting.Pressureisappliedtothetoporbottomgeomembrane,forcingtogetherthetwosurfacestoformacontinuousbond.1.2.2HotWedge(orKnife)8212;Thistechniquemeltsthetwogeomembranesurfacestobeseamedbyrunningahotmetalwedgebetweenthem.Pressureisappliedtothetoporbottomgeomembrane,orboth,toformacontinuousbond.Someseamsofthiskindaremadewithdualbondtracksseparatedbyanonbondedgap.Theseseamsaresometimesreferredtoasdualhotwedgeseamsordouble-trackseams.1.2.3Extrusion8212;Thistechniqueencompassesextrudingmoltenresinbetweentwogeomembranesorattheedgeoftwooverlappedgeomembranestoeffectacontinuousbond.1.3Thetypesofmaterialscoveredbythistestmethodincludethefollowing.1.3.1VeryLowDensityPolyethylene(VLDPE).1.3.2LinearLowDensityPolyethylene(LLDPE).1.3.3VeryFlexiblePolyethylene(VFPE).1.3.4LinearMediumDensityPolyethylene(LMDPE).1.3.5HighDensityPolyethylene(HDPE).1.3.6PolyvinylChloride(PVC).1.3.7FlexiblePolypropylene(fPP).Note18212;Thepolyethyleneidentifierspresentedin1.3.1-1.3.5describethetypesofmaterialstypicallytestedusingthistestmethod.Theseareindustryacceptedtradedescriptionsandarenottechnicalmaterialclassificationsbaseduponmaterialdensity.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibility......
【中国标准分类号】:Q27
【国际标准分类号】:91_100_50
【页数】:6P.;A4
【正文语种】:英语


【英文标准名称】:Firehazardtestingforelectrotechnicalproducts.Methodsoftest.Bad-connectiontestwithheaters
【原文标准名称】:电工产品的火灾危险试验.第2部分:试验方法.第3节:与加热器不良接点试验
【标准号】:BS6458Sec.2.3-1985
【标准状态】:作废
【国别】:英国
【发布日期】:1985-10-31
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸;电气元件;危害;电故障;电连接;电连接器;电气设备;电气安全;试样;火灾;试样制备;试验设备;着火性;接线端;燃烧试验
【英文主题词】:
【摘要】:
【中国标准分类号】:K04
【国际标准分类号】:
【页数】:20P;A4
【正文语种】:英语