日本ASKER橡胶硬度计FP型TheASKERDurometerTypeFformuchsofterspecimens(lowhardness)givesaccuratereadingsasitfeaturesalargerindentorandpressurefoot.Pressurefootplateisdesignedtobesmallerindimensionsandanovalshapeinaccordancewiththesizeofpowderpuff.TheASKERDurometerTypeFisspecifiedexclusivelyforpowderpuff.Thereisnoneedtopressthedurometerintothespecimen,butjusttoplaceitontothespecimen.Asitissoft,theweightofthedurometerconstitutesthepressuretothespecimen.Ithasrecentlybeenusedadditionallyforgelmaterials,softrubberrolls,etc.FeaturesIndentor Height:2.54mmShape:CylindricalPressurefootAnovalshapedpressurefoot(50mmx37mm)incontactwithaspecimenallowsastablemeasurementbyplacingitontothespecimen.HardnessTesterSelectionChartOurproductlineconsistsofvarioustypesofdurometersapplicabletospecificmaterialsasindicatedinthechartabove.TypeADurometer(ASKERAtype),conformingtoJISK6235isthemostpopulartypeofdurometerformeasuringrubberhardness.However,verificationisrecommendedbecauseasignificantdifferenceisestimatedtobethelargestwhenadurometerindicatesmeasurementvaluesfrom10to90points.ForhardspecimensforwhichTypeADurometerreadingsindicatemorethan90points,measurementsshouldbeundertakenusingtheTypeDDurometer(ASKERDtype).However,forsoftspecimenswithmeasurementsoflessthan20points,theASKERCtypeorTypeEDurometer(ASKEREtype)shouldbeused.Themostimportantconsiderationinusingdurometersistoselectthecorrecttypeforpurposesofmeasurementaccordingtothespecimen.SpecificationIndicationrange0point-100point(262degreedialscale)Minimumindication1point(Accuracy: 1point)IndentorDesign(mm)Height:2.5415Dia.CylindricalSpringForces[mN(g)]0point:980(100)100point:1960(200)CentralholeofdiameterofPressurefoot 16PressurefootDimension(mm)50 37(Ovalshaped)OuterDimension(mm)Approx.Width50 Depth37 Height81Weight(g)300ApplicationPowderpuffOptionTwo-pointertype(max-handandactivehand)ofRubberHardnessTesterThestationarysethand(max-hand)makesthemaximumvalueeasiertoreadandallowsthecreepcharacteristicsofaspecimen.Accuratemeasurementismadepossibleforspecimens*forwhichstressrelaxationoccursovertimeorforspecimensforwhichitisdifficulttotakereadingsfromthefront.*Materialsforwhichthereadingdecreasesimmediatelyaftertheindentorhasbeenpressedagainstthesurface.