ASTM_E_1975_-_18.pdf

Designation:E197518Standard Specification forShelter,Electrical,Equipment S-280/G1This standard is issued under the fixed designation E1975;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers one type of lightweight fieldand mobile shelter designed for transport by cargo truck,fixedor rotary winged aircraft,by rail,and ship,as Shelter,ElectricalEquipment S-280/G(see 15.5).1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 The following safety hazards caveat refers only to thetest methods described in this specification.This standard doesnot purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the user of thisstandard to establish appropriate safety,health,and environ-mental practices and determine the applicability of regulatorylimitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C273/C273M Test Method for Shear Properties of SandwichCore MaterialsD1621 Test Method for Compressive Properties of RigidCellular PlasticsD1622/D1622M Test Method for Apparent Density of RigidCellular PlasticsD2842 Test Method for Water Absorption of Rigid CellularPlasticsE631 Terminology of Building ConstructionsE864 Practice for Surface Preparation of Aluminum Alloysto Be Adhesively Bonded in Honeycomb Shelter PanelsE1730 Specification for Rigid Foam for Use in StructuralSandwich Panel CoresE1749 Terminology Relating to Rigid Wall RelocatableSheltersE1773 Practice for Sealing Rigid Wall Tactical Shelters withPolysulfide Based SealantsE1794 Specification for Adhesive for Bonding Foam CoredSandwich Panels(200F Elevated Humidity Service),Type II PanelsE1801 Practice for Adhesive Bonding of Aluminum Facingsin Foam and Beam Type SheltersE1851 Test Method for Electromagnetic Shielding Effec-tiveness of Durable Rigid Wall Relocatable StructuresE1925 Specification for Engineering and Design Criteria forRigid Wall Relocatable Structures2.2 AWS Standards:3AWS D17.1/D17.1M Specification for Fusion Welding ofAerospace ApplicationsAWS D17.2/D17.2M Specification for Resistance Weldingfor Aerospace Applications2.3 Federal Air Regulation(FAR):4FAR 25.853 Compartment Interior2.4 Military Standards:MIL-DTL-14072 Finishes for Ground Electronic Equip-ment5MIL-DTL-53039 Coating,Aliphatic Polyurethane,SingleComponent,Chemical Agent Resistant5MIL-DTL-55507 Shelter,Electrical Equipment,(With orWithout Equipment),Packaging of5MIL-STD-202 Electronic and Electrical Component Parts5MIL-STD-252 Wired Equipment,Classification of Visualand Mechanical Defects for Equipment,Electronic,Wired,and Other Devices51This specification is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.53on Materials and Processes for Durable Rigidwall Relocatable Structures.Current edition approved Sept.1,2018.Published September 2018.Originallyapproved in 1998.Last previous edition approved in 2015 as E197515.DOI:10.1520/E1975-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Welding Society(AWS),8669 NW 36 St.,#130,Miami,FL 33166-6672,http:/www.aws.org.4Available from Flight Standards Service,Federal Aviation Administration(FAA),800 Independence Ave.,SW,Washington,DC 20591,http:/www.faa.gov.5Available from DLA Document Services,Building 4/D,700 Robbins Ave.,Philadelphia,PA 19111-5094,http:/quicksearch.dla.mil.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 MIL-STD-810G Environmental Engineering Considerationsand Laboratory Tests5MIL-STD-1916 DOD Preferred Methods for Acceptance ofProduct6MIL-STD-13231 Marking of Electronic Items52.5