日本ASKER橡膠硬度計JC型TheASKERDurometerTypeJCforgeneralrubber,thermoplasticelastomersandsoftplasticconformingtothespecificationsoftheformerJISK6301.ItcompliedwithSpringtypehardnesstesterTypeCintheformerlyapplicablestandardsofJISJ6301 PhysicalTestingMethodsforVulcanizedRubber ,abolishedinAug,1998.However,itisusedevennowformeasurementdataorinternalmanagementdataupontheagreementofconcernedpartiesduetoitsextensiveuseformanyyearswithintherubberindustry.FeaturesIndentorHeight:2.54mmShape:FlatConePointPressurefootThePressurefootincontactwiththespecimenis44mminwidthand18mmindepth,wideenoughtoensureaccuratemeasurement.TheLongerPressureFootType(JCLtype)isapplicableformeasurementofnarroworconcavespecimens.HardnessTesterSelectionChartOurproductlineconsistsofvarioustypesofdurometersapplicabletospecificmaterialsasindicatedinthechartabove.TypeADurometer(ASKERAtype),conformingtoJISK6235isthemostpopulartypeofdurometerformeasuringrubberhardness.However,verificationisrecommendedbecauseasignificantdifferenceisestimatedtobethelargestwhenadurometerindicatesmeasurementvaluesfrom10to90points.ForhardspecimensforwhichTypeADurometerreadingsindicatemorethan90points,measurementsshouldbeundertakenusingtheTypeDDurometer(ASKERDtype).However,forsoftspecimenswithmeasurementsoflessthan20points,theASKERCtypeorTypeEDurometer(ASKEREtype)shouldbeused.Themostimportantconsiderationinusingdurometersistoselectthecorrecttypeforpurposesofmeasurementaccordingtothespecimen.SpecificationStandardsJISK6301Indicationrange0point-100point(262degreedialscale)Minimumindication1point(Accuracy: 1point)IndentorDesign(mm)Height:2.54mm35 AngleFlatConePoint0.79Dia.SpringForces[mN(g)]0point:980(100)100point:44100(4500)CentralholeofdiameterofPressurefoot 3PressurefootDimension(mm)44 18(Rectangular)OuterDimension(mm)Approx.Width57 Depth30 Height76Weight(g)200Applicationgeneralrubber,softplasticOuterDimension(mm)Acustomdesignedpressurefootdurometerisavailableaccordingtospecimenconditions.OptionTwo-pointertype(max-handandactivehand)ofRubberHardnessTesterThestationarysethand(max-hand)makesthemaximumvalueeasiertoreadandallowsthecreepcharacteristicsofaspecimen.Accuratemeasurementismadepossibleforspecimens*forwhichstressrelaxationoccursovertimeorforspecimensforwhichitisdifficulttotakereadingsfromthefront.*Materialsforwhichthereadingdecreasesimmediatelyaftertheindentorhasbeenpressedagainstthesurface.ConstantLoaderforDurometer Constantloarderassuresuniformtestpressureeliminatingfalsereadingsduetodifferencesbetweenoperatorsinmeasuringbyhand. Highaccuracyandrepeatabilityofthehardnessreadingsareassuredbytheflexiblejointfunction.IndentorExtensionTester Thegaugetochecktheindentorheightonadurometerandthereadingindicatormechanism. Inspectionisconductedat2,50,and100pointsrespectively.LoadTesterforHardnessTester Testertocheckloadpropertiesofthespringonadurometer Inspectionisconductedat2,50,and75pointsrespectively.