ASTMDI73785m257553200250123m......................-...-...............~--...-.-Iff-.-0q-1.3Designation:D1737-85---II............~.......-.....-...AMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceSt.,Philadelphia,Pa.,19103ReprintedfromtheAnnualBookofAST-WIStandards,CopyrightASTMIfnotlistediothecurrentcombinedindex,willappeat'inthenextedition.-.StandardTestMethodforELONGATiBNOFATTACHEDORGANICCOATINGSWITHCYLINDRICALMANDRELAPPARATUS'ThisstandardisissuedunderthefixeddesignationD1737:thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision.theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.TliistestmerliodliasbeenapprovedforiisebyageticiesoftheDepartmentofDdensetoreplaceMelhod6222ofFederalTestMeiliodStandardNo.141.4andforlistinginlheDoDindexofSpeciJicaiionsandStandards.1.Scope1.1Thistestmethodcoversthedeterminationbythecylindricaltestapparatusoftheelongationofattachedorganiccoatingswhenappliedtoflatsheetmetalofuniformsurfacetexture.1.2Thisstandardmayinvolvehazardousma-terials,operafions,andequipment.ThisstandarddoesnotpurporttoaddressalloJthesafityprob-lemsassociatedwithitsuse.Itistheresponsibil-ityofwhoeverusesthisstandardtoconsultandestablishappropriatesajëtyandhealthpracticesanddeterminelheapplicabilityofregulatorylimi-tationspriortouse.2.ApplicableDocuments2.1ASTMStandards:D823MethodsofProducingFilmsofUni-formThicknessofPaint,Varnish,Lacquer,andRelatedProductsonTestPanels2D1005TestMethodforMeasurementofDry-FilmThicknessofOrganicCoatingsUsingMicromete3D1186MethodsforNondestructiveMeasure-mentofDryFilmThicknessofNonmag-neticCoatingsAppliedtoaFerrousBase23.SummaryofMethod3.1Thematerialsundertestareappliedatuniformthicknesstoflatsheetmetalpanels.Afterthecoatingsaredriedorbaked,thepanelsarebentovercylindricalmandrelsofvariousdiameters.Theelongationisdeterminedfromthelargestdiametermandrelthatproducesvisi-blecrackinginthecoating...