ASTM C 1433Ma-2002 地下电缆管道、暴雨排水管用预制增强混凝土外罩横截面的标准规范(米制)
时间:2024-05-13 13:41:04 来源: 标准资料网 作者：标准资料网 阅读：8843
【英文标准名称】:StandardSpecificationforPrecastReinforcedConcreteBoxSectionsforCulverts,StormDrains,andSewers[Metric]
【原文标准名称】:地下电缆管道、暴雨排水管用预制增强混凝土外罩横截面的标准规范(米制)
【标准号】:ASTMC1433Ma-2002
【标准状态】:作废
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:施工材料;预制混凝土;混凝土
【英文主题词】:precastconcrete;constructionmaterials;concretes
【摘要】:
【中国标准分类号】:Q14
【国际标准分类号】:23_040_50
【页数】:17P;A4
【正文语种】:英语
MIL-I-45916B, INSERT, SCREW THREAD - THREAD CUTTING AND THREAD FORMING (24 JUL 1975)., This specification covers solid bushing screw thread inserts having thread cutting and thread forming external threads.【英文标准名称】:StandardTestMethodforColorStabilityofBuildingConstructionSealantsasDeterminedbyLaboratoryAcceleratedWeatheringProcedures
【原文标准名称】:用实验室加速风化程序测定建筑物密封材料颜色稳定性的标准试验方法
【标准号】:ASTMC1501-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:
【英文主题词】:artificialacceleratedweathering;sealant;colorchange;colorstability;Acceleratedweathering--sealants;Color--sealants;Colorstability;Laboratory--building/constructionmaterialsanalysis;Sealants
【摘要】:Thistestmethodisintendedtoinducecolorchangesinsealants,aswellastheirconstituentpigments,associatedwithend-useconditions,includingtheeffectsofsunlight,moisture,andheat.Theexposuresusedinthistestmethodarenotintendedtosimulatethecolorchangeofasealantcausedbylocalizedweatheringphenomena,suchasatmosphericpollution,biologicalattack,andsaltwaterexposure.Whenconductingexposuresindevicesthatuselaboratorylightsources,itisimportanttoconsiderhowwelltheartificialtestconditionswillreproducepropertychangesandfailuremodesassociatedwithend-useenvironmentsforthesealantbeingtested.InformationontheuseandinterpretationofdatafromacceleratedexposuretestsisprovidedinASTMG151.Whenthistestmethodisusedaspartofaspecification,exactprocedure,testconditions,testdurationandevaluationtechniquemustbespecified.Resultsobtainedbetweenthetwoproceduresmayvary,becausethespectralpowerdistributionofthelightsources(fluorescentUVandxenonarc)differ.Sealantsshouldnotbecomparedtoeachotherbasedontheresultsobtainedindifferenttypesofapparatus.Thesedevicesarecapableofmatchingultravioletsolarradiationreasonablywell.However,forsealantssensitivetolongwavelengthUVandvisiblesolarradiation,theabsenceofthisradiationinthefluorescentUVapparatuscandistortcolorstabilityrankingwhencomparedtoexteriorenvironmentexposure.Note18212;RefertoPracticesG151forfullcautionaryguidanceregardinglaboratoryweatheringofnon-metallicmaterials.1.1Thistestmethoddescribeslaboratoryacceleratedweatheringproceduresusingeitherfluorescentultravioletorxenonarctestdevicesfordeterminingthecolorstabilityofbuildingconstructionsealants.1.2Colorstabilityrankingsprovidedbythesetwoproceduresmaynotagree.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Valuesgiveninparenthesesareforinformationonly.1.4ThereisnoequivalentISOstandardforthistestmethod.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q24
【国际标准分类号】:91_120_30
【页数】:5P.;A4
【正文语种】:英语