Designation:D3208–00StandardSpecificationforManifoldPapersforPermanentRecords1ThisstandardisissuedunderthefixeddesignationD3208;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversmanifoldpapersusedinpre-paringtypewrittencopiesofpermanentorsemipermanentrecordsanddocuments.Theoriginal,orribbon,copyusuallyleavestheorganizationinwhichitoriginated,sothecarboncopybecomesthecopyofrecord.1.2Ithasbeenshown(1,2,3,4,5)2thatpermanenceisatleastanapproximatefunctionofthepHofanaqueousextractofthepaperwithcorrelationcoefficientsrangingfromapproxi-mately0.7to0.9(4).ThreepHlevels,reflectingthreelevelsofpermanence,arespecified.ExtractpHasanindicatoroflifeexpectancyisnotvalidifapaperhasbeentreatedwithanalkalinesurfacesizeorifanalkalinecoatinghasbeenapplied.1.3Thefollowingwouldbeexpectedtocontributesignifi-cantlytothelifeexpectancyofmanifoldpapers:theuseofpaperswithcontrolledacidity,orofpapersmanufacturedunderneutraloralkalineconditions,especiallypaperswithacalciumcarbonatefillerthatabsorbsacidicgasesfromtheatmosphereandcanneutralizeacidicmaterialsformedintheagingofpaper.1.4Thisspecificationisbasedonfibersourcesusedintheproductionofpaperthatcontainsnomorethan1%lignin,forpapersusedinarchives,libraries,andotherpermanentrecords.However,underproperconditions,(seeX1.5),papercontain-ingmorethan1%ligninmaybeemployedformanyotherendusesinpaperforrecordsthatarerequiredtohaveasubstantiallifeexpectancy.1.5AsindicatedinAppendicesX1.4andX1.5,thisspeci-ficationmaybeusedasaguide.2.ReferencedDocuments2.1ASTMStandards:D585PracticeforSamplingandAcceptingaSingleLotofPaper,Paperboard,Fiberboard,orRelatedProducts3D644TestMethodforMoistureContentofPaperandPaperboardbyOvenDrying3D646TestMethodforGrammageofPaperandPaperboard(WeightperUnitArea)3D985TestMethodBrightnessofPulp...
