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ANSI/ASTM F2125-2001 树顶支架静态稳定性试验方法

作者:标准资料网 时间:2024-05-19 14:06:09  浏览:9811   来源:标准资料网
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【英文标准名称】:TestMethodforTreestandStaticStability
【原文标准名称】:树顶支架静态稳定性试验方法
【标准号】:ANSI/ASTMF2125-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:testing;seats;hunting;statics
【摘要】:
【中国标准分类号】:Y55
【国际标准分类号】:97_220_40
【页数】:
【正文语种】:英语


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【英文标准名称】:StandardTestMethodforLaboratoryTestingofPolyethylene(PE)ButtFusionJointsusingTensile-ImpactMethod
【原文标准名称】:通过拉力冲击法实验室测试聚乙烯(PE)熔接接头的用标准试验方法
【标准号】:ASTMF2634-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:F17.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:对接接头;熔化;冲击;连接;实验室试验;PE;管道配件;管道;管;塑料配件;聚乙烯;测试
【英文主题词】:buttfusion;buttfusionjointtest;tensile-impact;ruptureenergy;yieldenergy
【摘要】:Thistestmethodisdesignedtoimparttensileimpactenergytoabuttfusedplasticpipespecimen,recordtheenergytofailthespecimenandplottheloadovertimecurveofthetensiletest.Energyrecordedatyieldandruptureandtherupturemode(brittleorductile)areusedascriteriaintheevaluationofthebuttfusionjoint.Theevaluationoftheforce/timecurvenotonlymakesitpossibletocomparedifferentbuttfusionparametersbutalsotoevaluatetherupturemodeofthespecimentodeterminejointintegrity.Eachcouponrsquo;testresultswillusuallybecomparedtotestresultsforcouponsmachinedfromthebasepipematerial,un-fused.4.1.1Thesedataarealsousefulforqualitativecharacterizationandforresearchanddevelopment.Formanymaterials,theremaybeaspecificationthatrequirestheuseofthistestmethod,butwithsomeproceduralmodificationsthattakeprecedencewhenadheringtothespecification.Therefore,itisadvisabletorefertothatmaterialspecificationbeforeusingthistestmethod.Tensilepropertiesmayvarywithspecimenpreparationandwithspeedandenvironmentoftesting.Consequently,whereprecisecomparativeresultsaredesired,thesefactorsmustbecarefullycontrolled.4.2.1Itisrealizedthatamaterialcannotbetestedwithoutalsotestingthemethodofpreparationofthatmaterial.Hence,whencomparativetestsofmaterialspersearedesired,thegreatestcaremustbeexercisedtoensurethatallspecimensarepreparedinexactlythesameway,unlessthetestistoincludetheeffectsofspecimenpreparation.Whilecaremustbetakentosecurethemaximumdegreeofuniformityindetailsofpreparation,treatment,andhandling,theexactdimensionsofthetestspecimensareenteredintotheDataAcquisitionSystem(DAS)beforeinitiatingthetest.1.1Thisisatensileimpacttestmethodthatdevelopsenoughtensileimpactenergyatspecificratesofstraintorupturestandardtensileimpactspecimensofbuttfusedplasticpipe.ItisusedtodeterminethequalityofPEbuttfusionjointsmadeinthefieldorinqualificationtesting.ItcanalsobeusedtodeterminetheoptimumbuttfusionjoiningparametersofPEmaterials.1.2Thistestmethodisapplicablefortestingpipespecimenswithadiameter2.37in.(60.3mm)andlargerwithawallthicknessfrom0.25in.(6.3mm)andlarger.Note18212;ThistestmethodissimilartoISO13953.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thistestmethodmaybeusedaloneortogetherwithothertestmethods,toevaluatethequalityofthebuttfusedjoints.Whenthistest,conductedatlaboratorytemperaturesper9.2,iscombinedwiththeelevatedtemperature,sustainedpressuretestinSpecificationD3035,boththeshorttermandlongtermstrengthofthePEbuttfusionjointwillbeverified.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G33
【国际标准分类号】:23_040_45
【页数】:9P.;A4
【正文语种】:


【英文标准名称】:ReducedPressureDetectorAssemblyBackflowPreventer
【原文标准名称】:减压检测器组合防回流装置
【标准号】:ANSI/ASSE1047-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005-04-08
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ASSE(Organization)
【标准类型】:()
【标准水平】:()
【中文主题词】:管路;止回阀
【英文主题词】:piping;checkvalves
【摘要】:RPDfskeepcontaminatedwaterfromfireprotectionsystemsfromflowingbackintoapotablewaterdistributionsystemwhenthepressureinthefiresprinklersystemishigherthanthepressureinthepotablewatersystem.Theydetectlowratesofflowupto2GPMwithinthesprinklersystemcausedbyleakageorunauthorizeduse.Theyconsistsof2checkvalvesseparatedbyanintermediatechamberwithventingtoatmosphere,andabypassline.ThisstandardappliestoManifoldRPDFsthatconsistof2ormorecompleteRPDFsinparallel.
【中国标准分类号】:Q81
【国际标准分类号】:91_140_60;23_060_50
【页数】:
【正文语种】:英语



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