Designation:D870−15StandardPracticeforTestingWaterResistanceofCoatingsUsingWaterImmersion1ThisstandardisissuedunderthefixeddesignationD870;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticecoversthebasicprinciplesandoperatingproceduresfortestingwaterresistanceofcoatingsbythepartialorcompleteimmersionofcoatedspecimensindistilledorde-mineralizedwateratambientorelevatedtemperatures.Althoughtheapparatusandprocedurecouldbeemployedinimmersiontestsusingsolutionsofvariousmaterialsinwater,thispracticeislimitedtotestsinwateralone.1.2Thispracticeislimitedtothemethodsofobtaining,measuring,andcontrollingtheconditionsandproceduresofwaterimmersiontests.Itdoesnotspecifyspecimenpreparation,specifictestconditions,orevaluationofresults.NOTE1—AlternativepracticesfortestingthewaterresistanceofcoatingsincludePracticesD1735,D2247,andD4585.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D609PracticeforPreparationofCold-RolledSteelPanelsforTestingPaint,Varnish,ConversionCoatings,andRelatedCoatingProductsD610PracticeforEvaluatingDegreeofRustingonPaintedSteelSurfacesD714TestMethodforEvaluatingDegreeofBlisteringofPaintsD823PracticesforProducingFilmsofUniformThicknessofPaint,Varnish,andRelatedProductsonTestPanelsD1193SpecificationforReagentWaterD1654TestMethodforEvaluationofPaintedorCoatedSpecimensSubjectedtoCorrosiveEnvironmentsD1730PracticesforPreparationofAluminumandAluminum-AlloySurfacesforPaintingD1735PracticeforTestingWaterRes...
