Designation:A1056−12StandardSpecificationforCastIronCouplingsUsedforJoiningHublessCastIronSoilPipeandFittings1ThisstandardisissuedunderthefixeddesignationA1056;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversthematerialsandtestingofcastironcouplingsforjoininghublesscastironsoilpipeandfittingsforsizes11⁄2to10in.1.2Itisthepurposeofthisspecificationtofurnishinforma-tionastothecharacteristicsofaparticularsleevetypecouplingwhenappliedtocastironsoilpipeandfittingsmanufacturedinaccordancewithSpecificationA888,latestrevision,andCISPIDesignation301,latestrevision.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thefollowingprecautionarycaveatpertainsonlytothetestmethodportion,Section8,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimita-tionspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A48/A48MSpecificationforGrayIronCastingsA644TerminologyRelatingtoIronCastingsA888SpecificationforHublessCastIronSoilPipeandFittingsforSanitaryandStormDrain,Waste,andVentPipingApplicationsC564SpecificationforRubberGasketsforCastIronSoilPipeandFittingsD2240TestMethodforRubberProperty—DurometerHard-nessE8TestMethodsforTensionTestingofMetallicMaterials2.2ASMEStandards:3ASMEB18.2.1SquareandHexBoltandScrewsInchSeriesASMEB18.1.2SquareandHexNuts(InchSeries)2.3CISPIStandard:4CISPI-301SpecificationforHublessCastIronSoilPipeandFittingsforSanitaryandStormDrain,WasteandVentPipingApplications3.Terminology3.1Definitions:3.1.1Definitionsoft...
