Designation:D4987–99(Reapproved2003)AnAmericanNationalStandardStandardTestMethodforTensileBreakingStrengthofPerforationsinOne-PartContinuousFormsPaper1ThisstandardisissuedunderthefixeddesignationD4987;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheprocedurefortestingthetensilebreakingstrengthoftheperforationsinone-partcon-tinuousforms.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D585PracticeforSamplingandAcceptingaSingleLotofPaper,Paperboard,Fiberboard,orRelatedProductsD685PracticeforConditioningPaperandPaperProductsforTestingD828TestMethodforTensilePropertiesofPaperandPaperboardUsingConstant-Rate-of-ElongationApparatusE122PracticeforChoiceofSampleSizetoEstimateaMeasureofQualityforaLotorProcessD1968TerminologyRelatingtoPaperandPaperProducts3.Terminology3.1DefinitionsshallbeinaccordancewithTerminologyD1968andtheDictionaryofPaper3.4.SummaryofTestMethod4.1ASTMtestmethodsfortensilestrengthformthebasisofthistest.Thesizeoftestspecimensmaybemodifiedtoaccommodatethecharacteristicsofthematerialthatisbeingtested.5.SignificanceandUse5.1Minimumtensilestrengthoftheperforationisimportanttoassurethattheformwillnotprematurelybreakapartduringtheprinting,converting,andformshandlingoperation.5.2Wherethevariouspartsaredetachedforfurtherpro-cessingmaximumtensilestrengthoftheperforationisimpor-tantinthevariousoperationstowhichtheformissubjected.6.Interferences6.1Avoidmanipulationbyfoldingandrefoldingaperfora-tionsincethiswillcauseweakeningofthetiesintheperforation.Thefoldedspecimenshouldnotbeunfoldeduntiljustpriort...
