Designation:D1553-834cn3I.AnAmericanNationalStandardAMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceSt.,Philadelphia,Pa.19103ReprintedfromtheAnnualBookofASTMStandards,CopyrightASTMIfnotlistedinthecurrentcombinedindex,willappearinthenextedition.StandardMethodsforANALYSISOFGRAPHITESUSEDASLUBRICANTS‘ThisstandardisissuedunderthefixeddesignationD1553;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(c)indicatesaneditorialchangesincethelastrevisionorreapproval.NH67-“jc/ASTMD355383m075753000222434m1.Scope1.1Thesemethodscoverthedeterminationofvolatilematterat105°C(includingmoisture)andofincinerationashofnaturalormanufac-turedgraphitesusedaslubricants.Thegraphitesshallnotcontainothersolidsorliquids.1.2Thisstandardmayinvolvehazardousma-terials,operations,andequipment.Thisstandarddoesnotpurporttoaddressaliofthesafityprob-lemsassociatedwìlhitsuse.Itistheresponsibil-ityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheappiìcabilìtyofregulatorylimi-tationspriortouse.VOLATILEMAITERAT105°C2.SummaryofMethod2.1Aweighedsampleisheatedfor2hat105°Candthelossofweightiscalculatedasthepercentvolatilematterincludingmoisture.3.Apparatus3.1DryingContainer-Awidemouthcylin-dricalgiassweighingbottleapproximately30mmhighand50mmwideprovidedwithaground-glassstopper,oranaluminumdishapproximately50mmhighand90mmwidewithatightlyfittingcover.3.2DryingOvencapableofmaintainingatemperatureof105f2°C.4.Procedure4.1Heatacleandryingcontainerandcoverinanovenfor2hat105°C.Coolittoroomtemperatureandweighittothenearest1mg.4.2Transfer5&O.1gofthethoroughlymixedsample,weighedtothenearest1mg,tothecontainer.Withthecoverremovedfromthecontainer,heatthesampleat105°Cfor2hinanoven.Attheendoftheheatingperiod,affixthecoverwhilehotandtransferthecontainertoadesiccatorcontaininganhydrouscalciumsulfate,Cooltoroomtemperatureandweighto...
