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1、T402sp-08OFFICIALSTANDARD–1926REVISED–1970OFFICIALTESTMETHOD–1983REVISED–1988REVISED–1993STANDARDPRACTICE–1998REVISED–2003REVISED–20082008TAPPITheinformationanddatacontainedinthisdocumentwerepreparedbyatechnicalcommitteeoftheAssociation.ThecommitteeandtheAssociationassumenoliability
2、orresponsibilityinconnectionwiththeuseofsuchinformationordata,includingbutnotlimitedtoanyliabilityunderpatent,copyright,ortradesecretlaws.Theuserisresponsiblefordeterminingthatthisdocumentisthemostrecenteditionpublished.CAUTION:ThisTestMethodmayincludesafetyprecautionswhicharebeliev
3、edtobeappropriateatthetimeofpublicationofthemethod.Theintentoftheseistoalerttheuserofthemethodtosafetyissuesrelatedtosuchuse.Theuserisresponsiblefordeterminingthatthesafetyprecautionsarecompleteandareappropriatetotheiruseofthemethod,andforensuringthatsuitablesafetypracticeshavenotch
4、angedsincepublicationofthemethod.Thismethodmayrequiretheuse,disposal,orboth,ofchemicalswhichmaypresentserioushealthhazardstohumans.ProceduresforthehandlingofsuchsubstancesaresetforthonMaterialSafetyDataSheetswhichmustbedevelopedbyallmanufacturersandimportersofpotentiallyhazardousche
5、micalsandmaintainedbyalldistributorsofpotentiallyhazardouschemicals.Priortotheuseofthismethod,theusermustdeterminewhetheranyofthechemicalstobeusedordisposedofarepotentiallyhazardousand,ifso,mustfollowstrictlytheproceduresspecifiedbyboththemanufacturer,aswellaslocal,state,andfederala
6、uthoritiesforsafeuseanddisposalofthesechemicals.Standardconditioningandtestingatmospheresforpaper,board,pulphandsheets,andrelatedproducts1.Scope1.1Thisstandardpracticedefinesthestandardatmospheresfornormalpreconditioning,conditioning,andtestingofpaperandpaperproducts,paperboard,fibe
7、rboard,andcontainersmadefromthem.Italsospecifiesproceduresforhandlingthesematerialsinorderthattheymayreachequilibriumwiththerespectiveatmosphere.1.2Thisstandardpracticeisalsoapplicabletostandardpulptesthandsheets,exceptthatthepreconditioningprocedureisomitted,thatis,thesheetsarenotd
8、riedtoconditionsbel
