Designation:D3708–88(Reapproved2010)StandardTestMethodforWeightofWaxAppliedDuringCurtainCoatingOperation1ThisstandardisissuedunderthefixeddesignationD3708;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationoftheweightofhotmeltcoatingappliedtocorrugatedboardbycurtaincoating.Itisintendedtobeusedforroutineprocesscontrolintheplant.NOTE1—Relatedmethodsfordeterminingtheweightofwaxcoatingincludethefollowing:TestMethodD3521;TestMethodD3522,andTestMethodD3344.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandardmayinvolvehazardousmaterials,opera-tions,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D3344TestMethodforTotalWaxContentofCorrugatedPaperboardD3521TestMethodforSurfaceWaxCoatingOnCorru-gatedBoardD3522TestMethodforAppliedCoatingWaxandImpreg-nating(Saturating)WaxinCorrugatedBoardFacing3.Terminology3.1Definitions:3.1.1waxloading—theweightofwaxpresentprimarilyasasurfacefilmbutincludingtheminorpartembeddedinthesurfacefibersofcorrugatedboard.Itisexpressedasweightperunitarea,usuallyingramspersquaremetreorpoundsperthousandsquarefeetofboard.4.SummaryofTestMethod4.1Theamountofwaxappliedtocorrugatedboardbymeansofacurtaincoaterisdeterminedbyattachingafoldedsheetofpapertoproductioncorrugatedboard,runningthecombinationthroughthecurtaincoater,andsubsequentlydeterminingtheappliedweightofwaxonthesheetofpaper.5.SignificanceandUse5.1Waxcoatingsareappliedtocorrugatedboardtoprovideabarrieragainstmoistureorotherpenetrantsortoprovideimprove...
