Designation:D2689–88(Reapproved1999)StandardPracticesforTestingAlkydResins1ThisstandardisissuedunderthefixeddesignationD2689;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThesepracticescovertestmethodsfortestingalkydresinsaslistedinTable1.Theyarethetestmethodsmostoftenusedtocharacterizealkyds.Alloftheanalyticaltestmethodsweresubjectedtointerlaboratorytestingusingoil-modifiedalkyds.Theiradaptabilitytoothertypesofalkydshasnotbeenstudied.Althougheachtestmethodspecifiesarecommendedamountofspecimenforstartingaseparateanalysis,severaloftheprocedurescanbeconductedonthesamestartingspeci-men,ifdesired.Forexample,thetestsforunsaponifiablematter,fattyacidcontent,oilidentification,andphthalicacidcontentcouldallberunonaconsecutivebasis,ifallwererequired.2.ReferencedDocuments2.1ASTMStandards:D93TestMethodsforFlashPointbyPensky-MartensClosedTester2D563TestMethodforPhthalicAnhydrideContentofAlkydResinsandResinSolutions3D1209TestMethodforColorofClearLiquids(Platinum-CobaltScale)4D1259TestMethodsforNonvolatileContentofResinSolutions5D1306TestMethodforPhthalicAnhydrideContentofAlkydResinsandEstersContainingOtherDibasicAcids(Gravimetric)3D1397TestMethodforUnsaponifiableMatterinAlkydResinsandResinSolutions3D1398TestMethodforFattyAcidContentofAlkydResinsandAlkydResinSolutions3D1475TestMethodforDensityofPaint,Varnish,Lacquer,andRelatedProducts5D1544TestMethodforColorofTransparentLiquids(GardnerColorScale)5D1545TestMethodforViscosityofTransparentLiquidsbyBubbleTimeMethod3D1639TestMethodforAcidValueofOrganicCoatingMaterials3D2090TestMethodforClarityandCleannessofPaintandInkLiquids3D2245TestMethodforIdentificationofOilsandOilAcidsinSolvent-ReduciblePaints5D2455TestMethodforIdentificationofCarboxylicAcidsinAlkydResins3D2690TestMethodforIsophthalicAcidinAlkydandPolyesterRes...
