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1、T411om-05OFFICIALSTANDARD–1926REVISED–1968REVISED–1976OFFICIALTESTMETHOD–1983REVISED–1984REVISED–1989REVISED–1997REVISED–2005©2005TAPPITheinformationanddatacontainedinthisdocumentwerepreparedbyatechnicalcommitteeoftheAssociation.ThecommitteeandtheAssociationassumenoliab
2、ilityorresponsibilityinconnectionwiththeuseofsuchinformationordata,includingbutnotlimitedtoanyliabilityunderpatent,copyright,ortradesecretlaws.Theuserisresponsiblefordeterminingthatthisdocumentisthemostrecenteditionpublished.CAUTION:ThisTestMethodmayincludesafetyprecaut
3、ionswhicharebelievedtobeappropriateatthetimeofpublicationofthemethod.Theintentoftheseistoalerttheuserofthemethodtosafetyissuesrelatedtosuchuse.Theuserisresponsiblefordeterminingthatthesafetyprecautionsarecompleteandareappropriatetotheiruseofthemethod,andforensuringthats
4、uitablesafetypracticeshavenotchangedsincepublicationofthemethod.Thismethodmayrequiretheuse,disposal,orboth,ofchemicalswhichmaypresentserioushealthhazardstohumans.ProceduresforthehandlingofsuchsubstancesaresetforthonMaterialSafetyDataSheetswhichmustbedevelopedbyallmanufa
5、cturersandimportersofpotentiallyhazardouschemicalsandmaintainedbyalldistributorsofpotentiallyhazardouschemicals.Priortotheuseofthismethod,theusermustdeterminewhetheranyofthechemicalstobeusedordisposedofarepotentiallyhazardousand,ifso,mustfollowstrictlytheproceduresspeci
6、fiedbyboththemanufacturer,aswellaslocal,state,andfederalauthoritiesforsafeuseanddisposalofthesechemicals.Thickness(caliper)ofpaper,paperboard,andcombinedboard1.Scope1.1Thismethoddescribestheprocedureformeasuringsingle-sheetthicknessandvariationsinsinglesheetthicknessofp
7、aper,paperboard,andcombinedboard.Theterm“combinedboard”encompassesbothcorrugatedandsolidfiberboard.1.1.2Becauseofthemethodofselectingsampleslongerinthecrossmachinedirection,theresultswillalwaysbebiasedinthatdirection.1.2Becauseoftherelativelyhighpressure50kPa(7.3psi)use
8、dinthistestmethod,itmaynotbesuitableformeasurementoftissueorothersoftorlowdensitymaterials,becausethestructure
