Designation:D1734−93(Reapproved2013)StandardPracticeforMakingCementitiousPanelsforTestingCoatings1ThisstandardisissuedunderthefixeddesignationD1734;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thispracticecoversproceduresformoldingandcuringcementitiouspanelsforuseinexposuretestingofcoatingsdesignedformasonryorcementitioussurfaces,althoughthesemaybesuitableforothertests.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C109/C109MTestMethodforCompressiveStrengthofHydraulicCementMortars(Using2-in.or[50-mm]CubeSpecimens)C150SpecificationforPortlandCementC230/C230MSpecificationforFlowTableforUseinTestsofHydraulicCementC305PracticeforMechanicalMixingofHydraulicCementPastesandMortarsofPlasticConsistencyC511SpecificationforMixingRooms,MoistCabinets,MoistRooms,andWaterStorageTanksUsedintheTestingofHydraulicCementsandConcretesC778SpecificationforSandC1005SpecificationforReferenceMassesandDevicesforDeterminingMassandVolumeforUseinthePhysicalTestingofHydraulicCementsD4258PracticeforSurfaceCleaningConcreteforCoatingD4259PracticeforAbradingConcreteD4260PracticeforLiquidandGelledAcidEtchingofConcrete3.SignificanceandUse3.1Researchersinthefieldofcoatingshaverecognizedtheneedforastandardizedsubstrateforevaluatingcoatingsintendedforuseoncementitioussurfaces.Thispracticede-scribesthepreparationofsuchpanels.4.Apparatus4.1Molds—Highdensitypolyethylenemoldstomakethepan...
