Designation:G143−03(Reapproved2013)StandardTestMethodforMeasurementofWeb/RollerFrictionCharacteristics1ThisstandardisissuedunderthefixeddesignationG143;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthesimulationofaroller/webtransporttribosystemandthemeasurementofthestaticandkineticcoefficientoffrictionoftheweb/rollercouplewhenslidingoccursbetweenthetwo.Theobjectiveofthistestmethodistoprovideuserswithweb/rollerfrictioninformationthatcanbeusedforprocesscontrol,designcalculations,andforanyotherfunctionwhereweb/rollerfrictionneedstobeknown.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D883TerminologyRelatingtoPlasticsD1894TestMethodforStaticandKineticCoefficientsofFrictionofPlasticFilmandSheetingD3108TestMethodforCoefficientofFriction,YarntoSolidMaterialE8TestMethodsforTensionTestingofMetallicMaterialsE122PracticeforCalculatingSampleSizetoEstimate,WithSpecifiedPrecision,theAverageforaCharacteristicofaLotorProcessE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodG40TerminologyRelatingtoWearandErosionG115GuideforMeasuringandReportingFrictionCoeffi-cientsG117GuideforCalculatingandReportingMeasuresofPrecisionUsingDatafromInterlaboratoryWearorEro-sionTestsG163GuideforDigitalDataAcquisitioninWearandFrictionMeasurements3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1blocking,n—unintentionaladhesio...
