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【英文标准名称】:StandardTestMethodforEffectsofLaboratoryAcceleratedWeatheringonElastomericJointSealants
【原文标准名称】:加速风化对弹性接缝密封胶影响的标准试验方法
【标准号】:ASTMC793-2005
【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】:C24.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:密封层(剂);建筑材料;接缝密封胶;风化;试验
【英文主题词】:acceleratedweathering;sealant;ultraviolet;weathering
【摘要】:Itisknownthatsolarradiationcontributestothedegradationofsealantsinexteriorbuildingjoints.Theuseofalaboratoryacceleratedweatheringmachinewithactinicradiation,moistureandheatappearstobeafeasiblemeanstogiveindicationsofearlydegradationbytheappearanceofsealantcracking.However,simulatedweatherfactorsincombinationwithextensionmayproducemoreseveredegradationthanweatherfactorsonly.Therefore,theeffectoftheweatheringtestismademoresensitivebytheadditionofthebendingofthespecimenatcoldtemperature.1.1Thistestmethodcoversalaboratoryprocedurefordeterminingtheeffectsofacceleratedweatheringoncured-in-placeelastomericjointsealants(single-andmulticomponent)foruseinbuildingconstruction.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.3ThecommitteewithjurisdictionoverthisstandardisnotawareofanycomparablestandardspublishedbyotherASTMcommitteesorotherorganizations.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q24
【国际标准分类号】:83_060;91_100_50
【页数】:4P.;A4
【正文语种】: