Designation:D2925−14(Reapproved2019)StandardTestMethodforBeamDeflectionof“Fiberglass”(Glass-Fiber-ReinforcedThermosettingResin)PipeUnderFullBoreFlow1ThisstandardisissuedunderthefixeddesignationD2925;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversmeasurementofthedeflectionasafunctionoftimeofaspecimenoffiberglasspipesupportedonaflatnon-arcedsupportasasimplebeamunderfullboreflowofwateratelevatedtemperatures.Bothglass-fiber-reinforcedthermosetting-resinpipe(RTRP)andglass-fiber-reinforcedpolymermortarpipe(RPMP)arefiberglasspipes.NOTE1—Forthepurposesofthisstandard,polymerdoesnotincludenaturalpolymers.1.2Thistestmethodcanbeusedtodeterminedeflectionatvaryingconditionsbysubstitutingothertestmedia.1.3Deflectionsobservedusingthistestmethodarerepre-sentativeonlyofpipingsupportedasasimplebeamunderfullboreflowwhichhasonediameterofpipeoverhangingateachsupport.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationpurposesonly.NOTE2—ThereisnoknownISOequivalenttothisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C33/C33MSpecificationforConcreteAggregatesD883TerminologyRelatingtoPlasticsD1600TerminologyforAbbreviatedTermsRelatingtoPlas-ticsD3567Practicefo...