Designation:E1975−18StandardSpecificationforShelter,Electrical,EquipmentS-280/G1ThisstandardisissuedunderthefixeddesignationE1975;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversonetypeoflightweightfieldandmobileshelterdesignedfortransportbycargotruck,fixedorrotarywingedaircraft,byrail,andship,asShelter,ElectricalEquipmentS-280/G(see15.5).1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thefollowingsafetyhazardscaveatrefersonlytothetestmethodsdescribedinthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafety,health,andenviron-mentalpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C273/C273MTestMethodforShearPropertiesofSandwichCoreMaterialsD1621TestMethodforCompressivePropertiesofRigidCellularPlasticsD1622/D1622MTestMethodforApparentDensityofRigidCellularPlasticsD2842TestMethodforWaterAbsorptionofRigidCellularPlasticsE631TerminologyofBuildingConstructionsE864PracticeforSurfacePreparationofAluminumAlloystoBeAdhesivelyBondedinHoneycombShelterPanelsE1730SpecificationforRigidFoamforUseinStructuralSandwichPanelCoresE1749TerminologyRelatingtoRigidWallRelocatableShelte...
