Designation:D586–97(Reapproved2002)AnAmericanNationalStandardStandardTestMethodforAshinPulp,Paper,andPaperProducts1ThisstandardisissuedunderthefixeddesignationD586;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddescribesthedeterminationoftheashcontentofpulp,paper,andpaperproductsbyignitionattwodifferenttemperatures:1.1.1MethodA—Ashcontentuponignitionat525°C.1.1.2MethodB—Ashcontentuponignitionat900°C.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:D585PracticeofSamplingandAcceptingaSingleLotofPaper,Paperboard,Fiberboard,orRelatedProduct2D644TestMethodforMoistureContentofPaperandPaperboardbyOvenDrying2D686TestMethodsofQualitativeExaminationofMineralFillerandMineralCoatingofPaper2D1968TerminologyRelatingtoPaperandPaperProducts23.Terminology3.1Definitions:3.1.1DefinitionsshallbeinaccordancewithTerminologyD1968andtheDictionaryofPaper.33.2DefinitionsofTermsSpecifictoThisStandard:3.2.1ashat525°C—theashcontentofthesamplewhentheignitiontemperatureis525°C.3.2.2ashat900°C—theashcontentofthesamplewhentheignitiontemperatureis900°C.4.SummaryofTestMethod4.1Atestspecimenofpaperorpaperboardisignitedinamufflefurnaceat525or900°C.Aseparatetestspecimenisanalyzedforthepercentmoisture.Theresultingweightofashandmoisturelevelinthesampleareusedtocalculatethepercentashpresentateitherofthespecifiedtemperaturesonamoisture-freesamplebasis.5.SignificanceandUse5.1Theashcontentofthesamplemayconsistofvariousresiduesfromchemicalsusedinitsmanufacture;metallicmatterfrompipingandmachinery;mineralmatterinthepulpfromwhichthepaperwasma...
