ASTM E1974-19
(Specification)Standard Specification for Shelter, Electrical Equipment S-250/G
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 rigid wall shelter designed for transport by cargo truck, fixed or rotary winged aircraft, by rail, and ship, designated as Shelter, Electrical Equipment S-250/G.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:E1974 −19
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 U.S. Department of Defense.
1. Scope E631 Terminology of Building Constructions
E1370 Guide for Air Sampling Strategies for Worker and
1.1 This specification covers one type of lightweight field
Workplace Protection
and mobile rigid wall shelter designed for transport by cargo
E1749 Terminology Relating to Rigid Wall Relocatable
truck, fixed or rotary winged aircraft, by rail, and ship,
Shelters
designated as Shelter, Electrical Equipment S-250/G.
E1773 Practice for Sealing RigidWallTactical Shelters with
1.2 The values stated in inch-pound units are to be regarded
Polysulfide Based Sealants
as standard. The values given in parentheses are mathematical
E1800 Specification for Adhesive for Bonding Foam Cored
conversions to SI units that are provided for information only
Sandwich Panels (160°F Elevated Humidity Service),
and are not considered standard.
Type I Panels
1.3 The following safety hazards caveat refers only to the
E1801 Practice forAdhesive Bonding ofAluminum Facings
test methods portion of this specification. This standard does in Foam and Beam Type Shelters
not purport to address the safety concerns, if any, associated
E1851 Test Method for Electromagnetic Shielding Effec-
with its use. It is the responsibility of the user of the standard tiveness of Durable Rigid Wall Relocatable Structures
to establish appropriate safety, health, and environmental
E1925 Specification for Engineering and Design Criteria for
practices and determine the applicability of regulatory limita- Rigid Wall Relocatable Structures
3
tions prior to use.
2.2 Commercial Standard:
1.4 This international standard was developed in accor-
SAE AMS-W-6858 Welding, Resistance: Spot and Seam
4
dance with internationally recognized principles on standard-
2.3 Federal Air Regulation (FAR):
ization established in the Decision on Principles for the
FAR 25.853 Compartment Interiors
5
Development of International Standards, Guides and Recom-
2.4 Military Standards:
mendations issued by the World Trade Organization Technical
MIL-F-14072 Finishes for Ground Based Electronic Equip-
Barriers to Trade (TBT) Committee.
ment
MIL-DTL-55507 Shelter, Electrical Equipment (With or
2. Referenced Documents
Without Equipment), Packaging of
2
2.1 ASTM Standards:
MIL-STD-252 Wired Equipment, Classification of Visual
C273/C273M Test Method for Shear Properties of Sandwich
and Mechanical Defects
Core Materials
MIL-STD-810 Environmental Engineering Considerations
D1621 Test Method for Compressive Properties of Rigid
and Laboratory Tests
Cellular Plastics
MIL-STD-2219 Fusion Welding forAerospaceApplications
D1622/D1622M Test Method forApparent Density of Rigid
MIL-STD-13231 Marking of Electronic Items
Cellular Plastics 6
2.5 Drawings:
D2842 Test Method for Water Absorption of Rigid Cellular
DL-SM-B-563500 Shelter, Electrical Equipment, S-250/G
Plastics
DL-SM-B-649950 Modification Kit, EMI, MK-1092/G
1
This specification is under the jurisdiction of ASTM Committee E06 on
3
Performance of Buildings and is the direct responsibility of Subcommittee E06.53 Available from AMS Publications, SAE International (SAE), 400 Common-
on Materials and Processes for Durable Rigidwall Relocatable Structures. wealth Dr., Warrendale, PA 15096, http://www.sae.org.
4
Current edition approved July 1, 2019. Published August 2019. Originally Available from Flight Standards Service, Federal Aviation Administration
approved in 1998. Last previous edition approved in 2011 as E1974–11. DOI: (FAA), 800 Independence Ave., SW, Washington, DC 20591, http://www.faa.gov.
5
10.1520/E1974–19. Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
6
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from U.S. Army Natick Soldier Systems Center (NSSC), ATTN:
Standards volume information, refer to the standard’s Document Summary page on AMSRD-NSC-CP-CS, General Greene Ave., Natick, MA 01760, http://
the ASTM website. www.army.mil/natick.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohoc
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E1974 − 11 E1974 − 19
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 U.S. Department of Defense.
1. Scope
1.1 This specification covers one type of lightweight field and mobile rigid wall shelter designed for transport by cargo truck,
fixed or rotary winged aircraft, by rail, and ship, designated as Shelter, Electrical 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.mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 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 safety, health, and healthenvironmental practices and determine the applicability of regulatory limitations prior
to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C273C273/C273M Test Method for Shear Properties of Sandwich Core Materials
D1621 Test Method for Compressive Properties of Rigid Cellular Plastics
D1622D1622/D1622M Test Method for Apparent Density of Rigid Cellular Plastics
D2842 Test Method for Water Absorption of Rigid Cellular Plastics
E631 Terminology of Building Constructions
E1370 Guide for Air Sampling Strategies for Worker and Workplace Protection
E1749 Terminology Relating to Rigid Wall Relocatable Shelters
E1773 Practice for Sealing Rigid Wall Tactical Shelters with Polysulfide Based Sealants
E1800 Specification for Adhesive for Bonding Foam Cored Sandwich Panels (160°F Elevated Humidity Service), Type I Panels
E1801 Practice for Adhesive Bonding of Aluminum Facings in Foam and Beam Type Shelters
E1851 Test Method for Electromagnetic Shielding Effectiveness of Durable Rigid Wall Relocatable Structures
E1925 Specification for Engineering and Design Criteria for Rigid Wall Relocatable Structures
3
2.2 Commercial Standards:Standard:
SAE AMS-W-6858 Welding, Resistance: Spot and Seam
4
2.3 Federal Air Regulation (FAR):
FAR 25.853 Compartment Interior Interiors
5
2.4 Military Standards:
MIL-F-14072 Finishes for Ground Based Electronic Equipment
MIL-DTL-55507 Shelter, Electrical Equipment (With or Without Equipment), Packaging of
1
This specification is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is the direct responsibility of Subcommittee E06.53 on Materials
and Processes for Durable Rigidwall Relocatable Structures.
Current edition approved Sept. 1, 2011July 1, 2019. Published October 2011August 2019. Originally approved in 1998. Last previous edition approved in 20062011 as
E1974 – 06.E1974–11. DOI: 10.1520/E1974-11.10.1520/E1974–19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
3
Available from AMS Publications, Society of Automotive Engineers SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001,15096,
http://www.sae.org.
4
Available from Flight Standards Service, Federal Aviation Administration (FAA), 800 Independence Ave., SW, Washington, DC 20591, http://www.faa.gov.
5
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA
19111-5098, http://www.dodssp.daps.mil.19111-5094, http://quicksearch.dla.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E1974 − 19
MIL-ST
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