【英文标准名称】:StandardTestMethodforCorrosionResistanceofFerrousMetalFastenerAssembliesUsedinRoofingandWaterproofing
【原文标准名称】:用于屋顶和防水屋顶的铁金属紧固件组件的耐腐蚀性的标准试验方法
【标准号】:ASTMD6294/D6294M-1998(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:D08.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:barriercoatings;corrosion;corrosionresistance;fasteners;metal;rust;whiterust;Fasteners(metal);Corrosionresistance;Roofingmaterials/applications;Rust;Waterproofingmaterials/applications;Whiterust;Ferrousmetals/alloys
【摘要】:Itisimportanttoevaluatethecorrosionresistanceofferrousmetalcomponentsusedinlow-sloperoofingandwaterproofingbecausetheyprovideintegrityandsecurementofothersystemcomponents,suchasinsulationandmembranes.Corrosionofferrousmetalcomponentsmayresultintheirearlydeteriorationandmayleadtoroofingorwaterproofingsystemfailure.Resultsfromtestingferrousmetalcomponentsinanacidicatmosphereserveasanindicationoftherelativecorrosionresistanceofsuchcomponents,coatedoruncoated,totheenvironmentofthetestchamber.Theresultsarenottobeconstruedasageneralguidelinetothecorrosionresistanceofsuchcomponentsinotherenvironmentsorinusagethatmaybeconducivetocorrosion.Moistaircontainingsulfurdioxidequicklyproduceseasilyvisiblecorrosiononmanyferrousmetals.Itisthereforeatestmediumsuitedtodetectporesorothersourcesofweaknessinprotectivebarriercoatings.Thistestmethodappliesprimarilytoevaluatingtheeffectivenessofbarriercoatingstoprovidegeneralcorrosionprotectionundertestconditions.Itisnotintendedtoevaluatetheresistanceofthecomponentstospecificcorrosionmechanismssuchascrevice,galvanic,orstresscorrosion.Thistestmethoddoesnotaddressabrasionresistanceofbarriercoatingswhenthefastenersaredriventhroughaboveroofdeckcomponents,suchasanexistingbuilt-uprooforinsulations,orboth.Onlytheabovedeckportionoffastenerssubjectedtothistestmethodisevaluated.1.1Thistestmethodcoverscomponentsofferrousmetalfastenerassemblies,excludingthoseofstainlesssteel,suchasfasteners,stressplates,andbattenbarsusedinlowsloperoofingandwaterproofing,toasulfurousacidenvironment.Thistestmethodevaluatesrelativecorrosionresistanceofthecomponentsbydeterminationofpercentageofrustorwhiterust.1.2Thecomponentsmayormaynothaveasurfacetreatmentapplied.1.3Alimitingfactoristhesubjectivenesswhendeterminingactualpercentageofrustorwhiterustcorrosion.1.4Otherperformancecharacteristicsofferrousmetalcomponentssuchasabrasionresistanceofbarriercoatingsarenotevaluatedinthismethod.1.5ThistestmethodwasdevelopedbasedonPracticeG87.1.6ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J13
【国际标准分类号】:91_120_30
【页数】:4P.;A4
【正文语种】:英语