Designation:C1658/C1658M−13StandardSpecificationforGlassMatGypsumPanels1ThisstandardisissuedunderthefixeddesignationC1658/C1658M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoverstheglassmatgypsumpanelsdescribedin1.1.1–1.1.3.1.1.1Glassmatinteriorgypsumpanel,designedforuseonwalls,ceilings,orpartitionsandthataffordsasurfacesuitabletoreceivedecoration.1.1.2Glassmatcoreboardgypsumpanel,andglassmatshaftlinergypsumpanel,designedforuseasabaseinmultilayersystemsorasgypsumstudsorcoresinsemisolidorsolidgypsumboardpartitions,orinshaftwallassemblies.1.1.3Glassmatwater-resistantgypsumpanel,designedtobeusedasabasefortheapplicationofceramicorplastictileonwallsorceilings.Thisproductisalsosuitablefordecora-tion.(Thisisdistinctfromacoatedglassmatwater-resistantgypsumpanelASTM1178.)1.2SpecificationsapplicabletoallglassmatgypsumpanelsarelocatedinSections1–4and8–10.Specificationsapplicabletospecificglassmatgypsumpanelsarelocatedinthefollowingsections:SectionGlassmatinteriorgypsumpanel5Glassmatcoreboardgypsumpanel,andglassmatshaftlinergypsumpanel6Glassmatwater-resistantgypsumpanel71.3Thevaluesstatedineitherinch-poundunitsorSI(metric)aretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemshallbeusedindependentoftheother.Valuesfromthetwosystemsshallnotbecombined.2.ReferencedDocuments2.1ASTMStandards:2C11TerminologyRelatingtoGypsumandRelatedBuildingMaterialsandSystemsC22SpecificationforGypsumC473TestMethodsforPhysicalTestingofGypsumPanelProductsC645SpecificationforNonstructuralSteelFramingMem-bersC1264SpecificationforSampling,Inspection,Rejection,Certification,Packaging,Marking,Shipping,Handling,andStorageofGypsumPanelProductsE84TestMethodforSurfaceBurningCharacteristicsofBuildingMaterialsE119Test...
