Designation:D6548–00AnAmericanNationalStandardStandardTestMethodforResistancetoMechanicalPenetrationofSanitaryTissuePapers(BallBurstProcedure)1ThisstandardisissuedunderthefixeddesignationD6548;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddescribesthemeasurementoftheresistancetomechanicalpenetrationofsanitarytissuepapers.Applicationtootherpapertypesispossiblebutisnotcoveredhere.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:D585PracticeforSamplingandAcceptingaSingleLotofPaper,Paperboard,Fiberboard,andRelatedProducts2D685PracticeforConditioningPaperandPaperProductsforTesting2D774/D774MTestMethodforBurstingStrengthofPaper2D1968TerminologyRelatingtoPaperandPaperProducts2D4826PracticeforUnitsofMeasurementandConversionFactorsforPulp,Paper,andPaperboard2E4PracticesforForceVerificationofTestingMachines3E122PracticeforChoiceofSampleSizetoEstimateaMeasureofQualityforaLotorProcess43.Terminology3.1Definitions—Fordefinitionsoftermsusedinthistestmethod,refertoTerminologyD1968ortheDictionaryofPaper.54.SummaryofTestMethod4.1Inthistestmethod,atestspecimenisclampedbetweentwoconcentricringswhoseinnerdiameterdefinesthecircularareaundertest.Apenetrationassemblythetopofwhichisasmooth,sphericalsteelballisarrangedperpendiculartoandcenteredundertheringsholdingthetestspecimen.Thepenetrationassemblyisraisedataspecifiedconstantrateofspeedsuchthatthesteelballcontactsandeventuallypenetratesthetestspecimentothepointofspecimenrupture.Themaximumforceappliedbythepenetrationassemblyattheinstantofpenetrationisreportedastheresistancetomec...
