ASTMDq23790-07595300057BbBTm4TbDesignation:D4237-90AMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceSI..Philadelphia,Pa.19103AeprintodhorntheAnnualBook01ASTMStandards.CopyrightASTMIfnc4listedinIhecurrentcombinedindex,wllappearInthenexledilion.StandardTestMethodsforRubberHoseUsedforSteamApplications’ThisstandardisissuedunderthefixeddesignationD4237;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(c)indicatesaneditorialchangesincethelastrevisionorreapproval..1.Scope1.1Thesetestmethodscovertestingproceduressimu-latingserviceconditionsforrubberhoseexposedtosaturatedsteam.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.I.3Thisstandardmayinvolvehazardousmaterials,oper-ations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesaietyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocument2.1ASTMStandard:D380TestMethodsforRubberHose*3.SignificanceandUse3.1Thepurposeofthesetestmethodsistoprovideproducers,distributors,anduserswithnationallyrecognizedtestmethods.Theseareusedforevaluatingthecharacteris-ticsofhoseproductsforsteamapplications.4.DescriptionofTestMethods4.1Thespecialtestsdescribedinthesetestmethodsshallbeappliedasrequiredinordertocomplywiththedetailedspecifications.Otherwise,thegeneralproceduresinTestMethodsD380shallbeusedandareherebymadeapartofthesetestmethods.4.2Incaseofaconflictbetweentheprovisionsofthesetestmethodsandthoseofdetailedspecificationsortestmethodsforaparticularhose,thelattershalltakeprece-dence.4.3Fourtestmethodsforhosesteamexposurearede-scribed,asfollows:TestMethodSectionAVerticalrack6BHorizontalrack1CFlexingtest,verticalarrangement8DFlexingtest,horizontalarrangement94.4Thetemperatureorpressureofthesteamandt...
