Designation:F1138−98(Reapproved2014)AnAmericanNationalStandardStandardSpecificationforSprayShieldsforMechanicalJoints1ThisstandardisissuedunderthefixeddesignationF1138;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationdescribesthemanufacturingrequire-mentsforsprayshieldstockandthefabricationandinstallationrequirementsforsprayshieldsmadefromthatstock.1.1.1Sections2–14addressthemanufacturingrequire-mentsforthesprayshieldstock.AnnexA1addressesthefabricationandinstallationrequirementsforthesprayshields.1.1.2Fig.1showsthetypicalconstructionofasprayshield.Figs.2-6showmethodsofinstallationofasprayshieldonvariousmechanicaljoints.1.2Theshieldsareintendedforusearoundmechanicaljoints(flanged,boltedunions,andsoforth)inliquidpipingsystemstopreventtheimpingementofflammableliquidonhotsurfacesorfluidsontoelectricalswitchboardsandcomponentsresultingfromaleakinthemechanicaljoint.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.2.ReferencedDocuments2.1ASTMStandards:2A176SpecificationforStainlessandHeat-ResistingChro-miumSteelPlate,Sheet,andStripA276SpecificationforStainlessSteelBarsandShapesA580/A580MSpecificationforStainlessSteelWireB134/B134MSpecificationforBrassWireB164SpecificationforNickel-CopperAlloyRod,Bar,andWireB166SpecificationforNickel-Chromium-IronAlloys(UNSN06600,N06601,N06603,N06690,N06693,N06025,N06045,andN06696),Nickel-Chromium-Cobalt-MolybdenumAlloy(UNSN06617),andNickel-Iron-Chromium-TungstenAlloy(UNSN06674)Rod,Bar,andWireD1308TestMethodforEffectofHouseholdChemicalsonClearandPigmentedOrganicFinishesD1424TestMethodforTearingStrengthofFabricsbyFalling-Pendulum(Elmendorf-Type)ApparatusD1682TestMethodfor...
