Standard Specification for Shelter, Electrical Equipment S-250/G

ABSTRACT
This specification establishes the requirements and the corresponding test methods for one type of lightweight field and mobile shelter designed for transport by cargo truck, fixed or rotary winged aircraft, by rail, and ship, designated as electric equipment shelter S-250/G. These requirements include those for the material, construction, environmental performance, structural integrity, and tightness characteristics.
SCOPE
1.1 This specification covers one type of lightweight field and mobile shelter designed for transport by cargo truck, fixed or rotary winged aircraft, by rail, and ship, designated as Shelter, Electric Equipment S-250/G.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
The following safety hazards caveat refers only to the test methods portion of this specification. This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of the standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Status
Historical
Publication Date
30-Sep-2006
Current Stage
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ASTM E1974-06 - Standard Specification for Shelter, Electrical Equipment S-250/G
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E1974 – 06
Standard Specification for
1
Shelter, Electrical Equipment S-250/G
This standard is issued under the fixed designation E1974; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope SandwichPanels(160°FElevatedHumidityService),Type
I Panels
1.1 This specification covers one type of lightweight field
E1801 Practice for Adhesive Bonding of Aluminum Fac-
and mobile shelter designed for transport by cargo truck, fixed
ings in Foam and Beam Type Shelters
or rotary winged aircraft, by rail, and ship, designated as
E1851 Test Method for Electromagnetic Shielding Effec-
Shelter, Electric Equipment S-250/G.
tiveness of Durable Rigid Wall Relocatable Structures
1.2 The values stated in inch-pound units are to be regarded
E1925 SpecificationforEngineeringandDesignCriteriafor
as the standard. The values given in parentheses are for
Rigid Wall Relocatable Structures
information only.
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2.2 Commercial Standards:
1.3 The following safety hazards caveat refers only to the
SAE AMS-W-6858 Welding, Resistance: Spot and Seam
test methods portion of this specification. This standard does
2.3 Federal Air Regulation (FAR):
not purport to address the safety concerns, if any, associated
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FAR 25.853 Compartment Interior
with its use. It is the responsibility of the user of the standard
2.4 Military Standards:
to establish appropriate safety and health practices and
MIL-F-14072 Finishes for Ground Based Electronic Equip-
determine the applicability of regulatory limitations prior to
5
ment
use.
MIL-DTL-55507 Shelter, Electrical Equipment (With or
5
2. Referenced Documents
Without Equipment), Packaging of
2
MIL-STD-252 Wired Equipment, Classification of Visual
2.1 ASTM Standards:
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and Mechanical Defects
C273 Test Method for Shear Properties of Sandwich Core
MIL-STD-810 Environmental Engineering Considerations
Materials
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and Laboratory Tests
D1621 Test Method for Compressive Properties Of Rigid
MIL-STD-2219 Fusion Welding for Aerospace Applica-
Cellular Plastics
5
tions
D1622 Test Method forApparent Density of Rigid Cellular
MIL-STD-13231 Marking of Electronic Items
Plastics
2.5 Drawings:
D2842 Test Method for WaterAbsorption of Rigid Cellular
6
DL-SM-B-563500 Shelter, Electrical Equipment, S-250/G
Plastics
6
DL-SM-B-649950 Modification Kit, EMI, MK-1092/G
E1370 Guide for Air Sampling Strategies for Worker and
DL-SM-B-650123 Shelter, Electrical Equipment, S-250/G
Workplace Protection
6
(Shielded)
E1749 Terminology Relating to Rigid Wall Relocatable
6
SM-D-208679 Outer Door Assembly
Shelters
6
SM-D-208682 Inner Door Assembly
E1773 Practice for Sealing Rigid Wall Tactical Shelters
6
SM-C-435904 Keeper
with Polysulfide Based Sealants
6
SM-C-435937 Nameplate
E1800 Specification forAdhesive for Bonding Foam Cored
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SM-B-563559 Adhesive
1
This specification is under the jurisdiction of ASTM Committee E06 on
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Performance of Buildings and is the direct responsibility of Subcommittee E06.53 Available from AMS Publications, Society of Automotive Engineers (SAE),
on Materials and Processes for Durable Rigid Wall Relocatable Structures. 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
4
Current edition approved Oct. 1, 2006. Published October 2006. Originally Available from Flight Standards Service, Federal Aviation Administration
approved in 1998. Last previous edition approved in 2001 as E1974 – 01a. DOI: (FAA), 800 Independence Ave., SW, Washington, DC 20591, http://www.faa.gov.
5
10.1520/E1974-06. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM www.dodssp.daps.mil.
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Standards volume information, refer to the standard’s Document Summary page on Available from USArmy Natick Soldier Center,ATTN:AMSRD-NSC-CP-CS,
the ASTM website. Kansas Street, Natick, MA 01760-5018.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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---------------------- Page: 1 ----------------------
E1974 – 06
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NOTE 1—Allotherterminologyrelatedtothisspecificationisdefinedin
SM-B-563655 Foam, Rigid, Plastic
6
Terminology E1749.
SM-D-563754 Diagram, Flatness and Squareness
6
SM-C-564839 Gasket, Silicone
4. Materials Requirements
6
SC-C-595537 Padlock and Key
6
4.1 General—The materials and components shall be as
SC-B-595538 Bonding Procedure
6
speci
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