Designation:D685−17StandardPracticeforConditioningPaperandPaperProductsforTesting1ThisstandardisissuedunderthefixeddesignationD685;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticedefinesthestandardatmospheresfornormalpreconditioning,conditioning,andtestingofpaperandpaperproducts,paperboard,fiberboard,andcontainersmadefromthem.Italsospecifiesproceduresforhandlingthesematerialsinorderthattheymayreachequilibriumwiththerespectiveatmosphere.1.2Thispracticedoesnotincludespecialconditioningandtestingatmospheres,suchasthosethatattempttosimulatetropicalorarcticenvironments.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ISOStandards:2ISO187Paper,BoardandPulps—StandardAtmosphereforConditioningandTestingandProcedureforMonitoringtheAtmosphereandConditioningofSamples2.2TAPPIStandard:3TAPPIT400SamplingandAcceptanceofaSingleLotofPaper,Paperboard,ContainerboardorRelatedProductTAPPI/ANSIT402StandardConditioningandTestingAt-mosphereforPaper,Board,PulpHandsheetsandRelatedProducts3.SignificanceandUse3.1Thepreconditioningrequirementisimportantbecausephysicalpropertiesofasampleat50%relativehumiditydependuponwhetherthesampleisbroughtto50%fromahigherorlowerrelativehumidity.AdetaileddiscussionoftheimportanceofpreconditioningmaybefoundinAnnexA1.3.2Theconditioningand...
