Designation:D4475−21StandardTestMethodforApparentHorizontalShearStrengthofPultrudedReinforcedPlasticRodsBytheShort-BeamMethod1ThisstandardisissuedunderthefixeddesignationD4475;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationoftheappar-enthorizontalshearstrengthoffiberreinforcedplasticrods.Thespecimenisashortbeamintheformoflengthsofpultrudedrods.Thistestmethodisapplicabletoalltypesofparallel-fiber-reinforcedplasticrodsamples.1.2Thistestmethodisprimarilyusedforqualitycontrolandspecificationpurposes(see5.1).1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.NOTE1—ThereisnoknownISOequivalenttothisstandard.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D618PracticeforConditioningPlasticsforTestingD883TerminologyRelatingtoPlasticsE4PracticesforForceVerificationofTestingMachinesE456TerminologyRelatingtoQualityandStatisticsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.Terminology3.1TermsusedinthisstandardaredefinedinaccordancewithTerminologyD883,unlessotherwisespecified.Fortermsrelatingtoprecisionandbiasandassociatedissues,thetermsusedinthisstandardaredefinedinaccordancewithTerminol-ogyE456.4.SummaryofTestMethod4.1Thehorizontal-sheartestspecimeniscenter-...