日本ASKER橡膠硬度計(jì)F型TheASKERDurometerTypeFformuchsofterspecimens(lowhardness)givesaccuratereadingsasitfeaturesalargerindentorandpressurefoot.Thedurometerexclusivelyforvariousfoammaterialssuchasurethanefoam,sponge,etc.Thereisnoneedtopressthedurometerintothespecimen,butjusttoplaceitontothespecimen.Asitissoft,theweightofthedurometerconstitutesthepressuretothespecimen.FeaturesIndentor Height:2.54mmShape:CylindricalPressurefootThepressurefootincontactwithaspecimenis80mmindiameter,wideenoughtoofferastablemeasurementbyplacingitontothespecimen.HardnessTesterSelectionChartOurproductlineconsistsofvarioustypesofdurometersapplicabletospecificmaterialsasindicatedinthechartabove.TypeADurometer(ASKERAtype),conformingtoJISK6235isthemostpopulartypeofdurometerformeasuringrubberhardness.However,verificationisrecommendedbecauseasignificantdifferenceisestimatedtobethelargestwhenadurometerindicatesmeasurementvaluesfrom10to90points.ForhardspecimensforwhichTypeADurometerreadingsindicatemorethan90points,measurementsshouldbeundertakenusingtheTypeDDurometer(ASKERDtype).However,forsoftspecimenswithmeasurementsoflessthan20points,theASKERCtypeorTypeEDurometer(ASKEREtype)shouldbeused.Themostimportantconsiderationinusingdurometersistoselectthecorrecttypeforpurposesofmeasurementaccordingtothespecimen.SpecificationIndicationrange0point-100point(262degreedialscale)Minimumindication1point(Accuracy: 1point)IndentorDesign(mm)Height:2.5425.2Dia.CylindricalSpringForces[mN(g)]0point:539(55)100point:4460(455)CentralholeofdiameterofPressurefoot 26PressurefootDimension(mm) 80(Roundshape)OuterDimension(mm)Approx.Width80 Depth80 Height81Weight(g)500ApplicationUrethanefoamSpongeNonwovenfabricOptionTwo-pointertype(max-handandactivehand)ofRubberHardnessTesterThestationarysethand(max-hand)makesthemaximumvalueeasiertoreadandallowsthecreepcharacteristicsofaspecimen.Accuratemeasurementismadepossibleforspecimens*forwhichstressrelaxationoccursovertimeorforspecimensforwhichitisdifficulttotakereadingsfromthefront.*Materialsforwhichthereadingdecreasesimmediatelyaftertheindentorhasbeenpressedagainstthesurface.