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1、T815om-01SUGGESTEDMEHTOD–1972OFFICIALMETHOD–1985REVISED–1990REVISED–1995REVISED–2001?2001TAPPITheinformationanddatacontainedinthisdocumentwerepreparedbyatechnicalcommitteeoftheAssociation.ThecommitteeandtheAssociationassumenoliabilityorresponsibilityinconne
2、ctionwiththeuseofsuchinformationordata,includingbutnotlimitedtoanyliabilityunderpatent,copyright,ortradesecretlaws.Theuserisresponsiblefordeterminingthatthisdocumentisthemostrecenteditionpublished.Coefficientofstaticfriction(slideangle)ofpackagingandpackagi
3、ngmaterials(includingshippingsackpapers,corrugatedandsolidfiberboard)(inclinedplanemethod)1.Scope1.1Thismethoddeterminesthecoefficientofstaticfrictionofmostpackagingmaterialsbymeasuringtheangleatwhichonetestsurfacebeginstoslideagainstanotherinclinedsurfacea
4、stheinclineisincreasedataconstantandprescribedrate.1.2Thetestisfrequentlyreferredtoasslideangle.Thecoefficientoffrictionisnumericallyequivalenttothetangentofthatangle.1.3Amethodfordeterminingthecoefficientonahorizontalplaneforcorrugatedandsolidfiberboardisd
5、escribedinTAPPIT816“CoefficientofStaticFrictionofCorrugatedandSolidFiberboard(HorizontalPlaneMethod)(withdrawn).”Bothmethodsgiveresultsessentiallyequivalenttothismethod.1.4TAPPIT548andTAPPIT549(bothwithdrawn)describenearlyidenticalmethodsfordeterminingtheco
6、efficientofstaticfrictionbutareintendedforapplicationtoprintingandwritingpapersandtheproceduresaresomewhatdifferent.2.Significance2.1Thecoefficientoffrictionofpackagingmaterialsindicateshowpackagesmadefromthatmaterialwillperforminmanycriticalapplications.Ah
7、ighcoefficientofonesurfaceofpaperorpaperboard(containerboard)toitselfmeansthatcontainershavingthatsurfacewilltendtoresistslidinginunitloads.Alowcoefficientmayindicatepotentialproblemswiththepackagesslippingfromtheload.2.2Thecoefficientoffrictiontestisempiri
8、cal.Itdescribestheconditionofthatsurfaceatthemomentoftest.Thismayormaynotrelatetotheconditionofthatsurfaceinuse.Itsconditionwilldependuponthehistoricaltreatmentofthesurface,especiallyiffrictionizingmat
