Designation:D3918−11StandardTerminologyRelatingtoReinforcedPlasticPultrudedProducts1ThisstandardisissuedunderthefixeddesignationD3918;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesedefinitionscovertermsusedinthereinforcedplasticspultrusionindustry.Insomecasesthetermsmaybeidenticaltothoseemployedinotherstandards.NOTE1—ThereisnoknownISOequivalenttothisstandard.2.Terminologybarcolhardness—ameasurementofthesurfacehardnessusingaBarberColmanimpresser.NOTE2—TheBarcolhardnessisarelativemeasureofcureandthenominalvaluecandifferonafullycuredpartwiththeuseofdifferentadditives.blister—aroundedelevationofthepultrudedsurfacewithboundariesthatmaybemoreorlesssharplydefined.Ablistermaybeasmallpercentageorlargepercentageofthepultrudedpartsurface.NOTE3—Theroundedelevationsomewhatresemblesablisteronthesurfaceofhumanskin.Blistersmayexistwithinthepultrusionasahollowarea(usuallygas-filled)underaraisedportionofthesurface.blooming,fiber—apultrusionsurfaceconditionexhibitingafiberprominenceorfibershowthatusuallyhasawhiteorbleachedcoloronpartswithoutasurfacingveil.NOTE4—Thesurfacegenerallyfeelsroughwhentouchedbythefingersandisofsuperficialthicknesseasilyremovedbybuffingorlightsanding.Thereisnotastructuralissue.blooming,undercure—adullandbleachedsurfacecolorthatisevidentinpultrudedmaterialnotexposedtotheweather.NOTE5—Thisconditionisusuallytheresultofinsufficientsurfacecure.bow—Seecamberandstraightness.camber—thedeviationoftheedgeorsurfaceofapultrudedshapefromareferencestraightline.chips—minordamagetothepultrudedsurfacethatremovesmaterialbutdoesnotcauseacrackorcraze.Typicallycausedbyminorimpactdamageclosedshape-apultrudedshapethathasahollowcomponent.crack—avisualseparationthatoccursinternallyorpenetratesdownfromthepultrudedsurfacetotheequivalentofonefullplyo...
