ASTMD'-I=lOB87-07595100038141Tm4TbDesignation:D4908-89AMERICAN90ClETYFORTESTINQANDMATIZRIALSIQ16Ran,St,;Phtladelphle,Pa.10103ReprintedfromtheAnn4SockofASTMStandards.CopyrightASTMIInotII&dInthecurrentcombinedindex,willappearinthenextedition.StandardTestMethodforTackinessofFinishonLeather’ThisstandardisissuedunderthefixeddesignationD4908;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecasaofrevision,theyearoflastrevision.Anumberinparentheswindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.scope1.lThistestmethodisintendedforuseonfinishedupperleather,forshoesorsimilarenduse,ortheleatherarticle,suchasashoeorhandbag,tomeasurebothdry,warmandmoist,warmtackiness,1.2Thisstandardmayinvolvehazardousmaterials,oper-ations,andequipment.Thisstandarddaesnotpurporttoaddressallofthesqfetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesdetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.Apparatus2.1Oven,air-tightat110f5°F.3.Reagents3.1Calciumchlorideasdesiccantspreadthinlyinatraynearthebottomoftheovenwithasurfaceareaofatleast50%ofthesurfaceareaofthebottomoftheoven,3.2Humidifiercabinetat90%relativehumidity5%and90zk2’F.*ThistestmethodisunderthejurisdictionofASTMCommit&D-31onLeatherandisthedirectresoonsibilitvofSubcommitteeD31.07onPhvskalProperties--Oeneral.*.CurrenteditionapprovedFeb.24,1989.PublishedApril1989.4.Procedure4.1Placethesampleintheovenat110f5°Ffor2hafterwhichtimethesampleshallberemovedfromtheovenandimmediatelyfeltwithcleandryfingersfortackiness.4.1Placeanothersimilarsampleinthehumidifierat90%relativehumidityand90f2°Ffor24h.Afterremovingfromthehumidifier,feelthesampleimmediatelywithcleandryfingersfortackiness.5.Report5.1Dry,warmtackinessoffinishshallbereportedasoneofthefollowing:notackiness,slighttackinessorconsiderabletackiness.5.2Moist,warmtackinessoffinishshallbereportedasoneofthefoll...
