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日本ASKER橡胶硬度计JAL长脚型TheASKERDurometerTypeJAforgeneralrubber,conformingtothespecificationsoftheformerJISK6301.ItcompliedwithSpringtypehardnesstesterTypeAintheformerlyapplicablestandardsofJISJ6301 PhysicalTestingMethodsforVulcanizedRubber ,abolishedinAug,1998.However,itisusedevennowformeasurementdataorinternalmanagementdataupontheagreementofconcernedpartiesduetoitsextensiveusehistoricallywithintherubberindustry.FeaturesIndentorHeight:2.54mmShape:FlatConePointHardnessTesterSelectionChartOurproductlineconsistsofvarioustypesofdurometersapplicabletospecificmaterialsasindicatedinthechartabove.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:539(55)100point:8379(855)CentralholeofdiameterofPressurefoot 3PressurefootDimension(mm) 12LongerfoottypeLength:18OuterDimension(mm)Approx.Width57 Depth30 Height94Weight(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.