Designation:D1102−84(Reapproved2021)ModificationofTechnicalAssociationofPulpandPaperIndustryStandardMethodT211OM-80StandardTestMethodforAshinWood1ThisstandardisissuedunderthefixeddesignationD1102;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofash,expressedasthepercentageofresidueremainingafterdryoxidation(oxidationat580to600°C),ofwoodorwoodproducts.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.3Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.SignificanceandUse2.1Theashcontentisanapproximatemeasureofthemineralcontentandotherinorganicmatterinwood.3.Apparatus3.1Crucibles,withtightlyfittinglids,havingacapacityof30mLormore,shallbeused.Platinumcruciblesarepreferred,butsilicaorporcelaincruciblesmaybeused.3.2MuffleFurnace—Anelectricfurnaceisrecommendedforignitingthewoodsample.Afurnacefittedwithanindicat-ingpyrometer,sothatthedesiredtemperaturecanbemaintained,ispreferable.3.3AnalyticalBalance,sensitiveto0.1mg.3.4DryingOven,withtemperaturecontrolledbetween100and105°C.4.TestSpecimen4.1Thetestspecimenshallconsistofapproximately2gofwoodthathasbeengroundtopassaNo.40(425-µm)sieve.Careshallbetakentoensurethatitisrepresentativeoftheentirelotofmaterialbeingtested.5.Procedure5.1Ignitetheemptycrucibleandcoveroveraburnerorinthemuffleat600°C,coolinadesiccator,andweightothenearest0.1mg....
