ASTM D2925-2001(2007)e1 在满管水流情况下玻璃纤维增强热固树脂管射束偏转的标准试验方法

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【英文标准名称】:StandardTestMethodforBeamDeflectionof"Fiberglass"(Glass-Fiber-ReinforcedThermosettingResin)PipeUnderFullBoreFlow
【原文标准名称】:在满管水流情况下玻璃纤维增强热固树脂管射束偏转的标准试验方法
【标准号】:ASTMD2925-2001(2007)e1
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D20.23
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:管;塑料;热固性聚合物;试验
【英文主题词】:beamdeflection;fiberglasspipe;fullboreflow;elasticmodulus
【摘要】:Intheabsenceofdeflectionmeasurementsfromactualinstalled-above-groundpiping,thistestmethodmaybeusedtoevaluatetheinfluenceofspanlengthonmid-spandeflectionsatdifferingtemperaturesunderfullboreflow.Note38212;Aflatbearingarea,smallcontactarea,andnarrowbearingwidthmayinducehighlocalizedsupportinteractionstresses,andconstraintsimposedbythesupportsmayalsoadverselyinfluencedeflectionsandperformanceofthepipe.1.1Thistestmethodcoversmeasurementofthedeflectionasafunctionoftimeofaspecimenoffiberglasspipesupportedonaflatnon-arcedsupportasasimplebeamunderfullboreflowofwateratelevatedtemperatures.Bothglass-fiber-reinforcedthermosetting-resinpipe(RTRP)andglass-fiber-reinforcedpolymermortarpipe(RPMP)arefiberglasspipes.Note18212;Forthepurposesofthisstandard,polymerdoesnotincludenaturalpolymers.1.2Thistestmethodcanbeusedtodeterminedeflectionatvaryingconditionsbysubstitutingothertestmedia.1.3Deflectionsobservedusingthistestmethodarerepresentativeonlyofpipingsupportedasasimplebeamunderfullboreflowwhichhasonediameterofpipeoverhangingateachsupport.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationpurposesonly.Note28212;ThereisnoknownISOequivalenttothisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q23
【国际标准分类号】:23_040_20
【页数】:4P.;A4
【正文语种】: