DIN 3239 T.2-1978 管道配件焊接端.焊接套管
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来源:标准资料网
【英文标准名称】:Weld-onEndsofValvesforSocketWelding
【原文标准名称】:管道配件焊接端.焊接套管
【标准号】:DIN3239T.2-1978
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:PracticeforObtainingHydrostaticorPressureDesignBasisfor"Fiberglass"(Glass-Fiber-ReinforcedThermosetting-Resin)PipeandFittings
【原文标准名称】:玻璃纤维(增强玻璃纤维的热固树脂)管和配件用获得静液压或压力设计基础的规范
【标准号】:ANSI/ASTMD2992-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006-09-19
【实施或试行日期】:2006-09-19
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:管件;塑料
【英文主题词】:Pipes;Plastics
【摘要】:Thispracticeestablishestwoprocedures,ProcedureA(cyclic)andProcedureB(static),forobtainingahydrostaticdesignbasis(HDB)orapressuredesignbasis(PDB)forfiberglasspipingproducts,byevaluatingstrength-regressiondataderivedfromtestingpipeorfittings,orboth,ofthesamematerialsandconstruction,eitherseparatelyorinassemblies.Bothglass-fiber-reinforcedthermosetting-resinpipe(RTRP)andglass-fiber-reinforcedpolymermortarpipe(RPMP)arefiberglasspipe.Note1-Forthepurposesofthisstandard,polymerdoesnotincludenaturalpolymers.ThispracticecanbeusedfortheHDBdeterminationforfiberglasspipewheretheratioofoutsidediametertowallthicknessis10:1ormore.Note2-Thislimitation,basedonthin-wallpipedesigntheory,servesfurthertolimittheapplicationofthispracticetointernalpressureswhich,bythehoop-stressequation,areapproximately20%ofthederivedhydrostaticdesignstress(HDS).Forexample,ifHDSis5000psi(34500kPa),thepipeislimitedtoabout1000-psig(6900-kPa)internalpressure,regardlessofdiameter.ThispracticeprovidesaPDBforcomplex-shapedproductsorsystemswherecomplexstressfieldsseriouslyinhibittheuseofhoopstress.Specimenendclosuresintheunderlyingtestmethodsmaybeeitherrestrainedorfree,leadingtocertainlimitations.1.4.1RestrainedEnds-Specimensarestressedbyinternalpressureonlyinthehoopdirection,andtheHDBisapplicableforstressesdevelopedonlyinthehoopdirection.1.4.2FreeEnds-Specimensarestressedbyinternalpressureinbothhoopandlongitudinaldirections,suchthatthehoopstressistwiceaslargeasthelongitudinalstress.Thispracticemaynotbeapplicableforevaluatingstressesinducedbyloadingswherethelongitudinalstressexceeds50%oftheHDS.Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesinparenthesesaregivenforinformationpurposesonly.Note3-ThereisnosimilarorequivalentISOstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G33
【国际标准分类号】:23_040_20;23_040_45
【页数】:
【正文语种】:英语
【英文标准名称】:Environmentaltesting;part2:testsmethods;testFe:vibration;sine-beatmethod
【原文标准名称】:环境试验第2-59部分:试验试验方法Fe:振动正弦频击法
【标准号】:IEC60068-2-59-1990
【标准状态】:现行
【国别】:国际
【发布日期】:1990-11
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC104
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;电气工程;机械试验;环境试验;振动;振动试验;正弦试验;正弦差拍振动;动量
【英文主题词】:Climatictests;Components;Electricappliances;Electricalengineering;Electricity;Environmentaltesting;Instruments;Materialstesting;Mechanicaltesting;Momentum;Sinetest;Sine-beat;Testing;Vibration;Vibrationtesting
【摘要】:Describestestmethodsinordertoassesselectrotechnicalproductssubjectedtopulsatingoroscillatingforcesofshortduration.Suchforcesinservicecanbecaused,e.g.,byimpactorvibrationofmachinery,byseismicorexplosivephenomena.
【中国标准分类号】:A21
【国际标准分类号】:19_040
【页数】:50P.;A4
【正文语种】:英语
