Designation:F1351−96(Reapproved2013)StandardPracticeforDeterminationoftheEffectofHardCreasingPaperonImagesProducedbyBusinessImagingSystems1ThisstandardisissuedunderthefixeddesignationF1351;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribesaprocedureforhardcreasingpaperinauniformandreproduciblemanner.1.2Thecreaseispositionedacrosstheimageandtheamountofimagedegradionisdetermined.1.3Theeffectofcreasingonthepapersurfacecanalsobedetermined.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D528TestMethodforMachineDirectionofPaperandPaperboard(Withdrawn2010)3D685PracticeforConditioningPaperandPaperProductsforTestingD5039TestMethodsforIdentificationofWireSideofPaper(Withdrawn2009)33.Terminology3.1Definitions:3.1.1hard-crease—paperfolded180°(backtoback,facetoface,longgrain,shortgrain)withauniformforceappliedtothefold.4.SummaryofPractice4.1Thispracticedescribesamechanicaldevicethatmakesitpossibletouniformlyhard-creasesamplesofpapersothatcomparativetestsmaybeperformedonthesamples.Compari-sonmaybemadewithacontrolsample.4.2Thispracticealsoprovidesameansoflocatingthecreaseoveralineofcopy.4.3Theimagemaybeproducedbyanyoftheseveralbusinessimagingsystemsincludingcopiers,printers,typewriters,etc.5.SignificanceandUse5.1Asacomparativetest,thispracticecanbeusedtodeterminethedamagecausedbycreasingpaper,thatis,damagetopaper,coatingsorimagesaff...
