1、Designation: E1925 10E1925 18Specification forEngineering and Design Criteria for Rigid Wall RelocatableStructures1This standard is issued under the fixed designation E1925; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、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 eng
3、ineering and design criteria required for the development of rigid wall relocatable structures(RWRS) and shall be applied to the design of expandable and nonexpandable RWRSs. This specification applies to presentengineering and design requirements for effective RWRSs that are operable in a variety o
4、f environments without degradation andare capable of all specified transport modes. This specification shall be applied to the design of expandable and nonexpandableRWRSs. This specification is a conversion of a military standard that was approved by all departments and agencies of theDepartment of
5、Defense.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.3 The following safety hazards caveat pertains only to the test required
6、portion, Section 10, of this specification. Thisspecification does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of theuser of this specification to establish appropriate safety safety, health, and healthenvironmental practices and deter
7、mine theapplicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations i
8、ssuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2E631 Terminology of Building ConstructionsE1749 Terminology Relating to Rigid Wall Relocatable SheltersE1851 Test Method for Electromagnetic Shielding Effectiveness of Durable
9、Rigid Wall Relocatable StructuresG21 Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi2.2 ISO Standards:3ISO 668-1995 Series 1 Freight Containers - Classification, Dimensions and Ratings, 5th EditionISO 1161-1990 Series 1 Freight Containers - Corner FittingsISO 1496-1 Ser
10、ies 1 Freight Containers Specification and Testing Document - Part 1, 1993ISO 1496-2 Series 1 Freight Containers Specification and Testing Document - Part 2, 19932.3 Military Standards:4MIL-STD-1472D Notice 3, Human Engineering Design Criteria for Military Systems, Equipment and FacilitiesMIL-F-1407
11、2D Finishes for Ground Electronic EquipmentMIL-C-22992E Amend 5, Connector, Plugs and Receptacles, Electrical, Waterproof, Quick Disconnect, Heavy Duty TypeGeneral Specification for1 This specification is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is under the direc
12、t responsibility of Subcommittee E06.53 onMaterials and Processes for Durable Rigidwall Relocatable Structures.Current edition approved Oct. 1, 2010Oct. 1, 2018. Published October 2010November 2018. Originally approved in 1997. Last previous edition approved in 20042010as E1925 04.E192510. DOI: 10.1
13、520/E1925-10.10.1520/E192518.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from American Nation
14、al Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.4 Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA19111-5098, http:/dodssp.daps.dla.mil.19111-5094,
15、 http:/quicksearch.dla.mil.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. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends t
16、hat users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1MIL-STD-810 Environme
17、ntal Engineering Considerations and Laboratory TestMIL-STD-1791 Notice 1, Designing for Internal Aerial Delivery in Fixed Wing Aircraft2.4 SAE Standards:Standard:5SAE-AS8090 Mobility, Towed Aerospace Ground Equipment, General Requirements for3. Terminology3.1 Definitions:3.1.1 For definitions of gen
18、eral terms related to building construction used in this specification, refer to Terminology E631 andfor general terms related to rigid wall relocatable shelters, refer to Terminology E1749.3.2 Definitions:Definitions of Terms Specific to This Standard:3.2.1 degradationdamage by the weakening or los
19、s of some property, quality, or capability.3.2.2 delaminationseparation into constituent layers.3.2.3 galvanic corrosionthe corrosion of metallic objects in the presence of moisture, caused by electrolytic action.3.2.4 special toolstools other than common hand tools or those designed specifically fo
20、r use with a delivered product.4. Materials and Manufacture4.1 Materials and WorkmanshipAll materials and workmanship shall be in accordance with good commercial practice. Allmaterials shall be recovered materials to the maximum extent possible consistent with quality and performance.All materials s
21、hallbe free of defects that would affect the performance or maintainability of individual components or the overall assembly adversely.4.2 Dissimilar MaterialsThe intimate contact of dissimilar materials, which can be expected to cause galvanic corrosion, shallbe prevented. When such contact cannot
22、be prevented, an insulating material shall be provided to minimize the corrosive effect.4.3 CorrosionAll RWRS components shall be adequately protected from corrosion in accordance with MIL-F-14072D. Theuse of dissimilar metal combinations shall be avoided whenever possible. The selection of permissi
23、ble couples shall be inaccordance with the compatible couples table of MIL-F-14072D. If, due to special conditions of service or design, the contractorconsiders that finishes, processes, or materials other than those specified herein are necessary or more suitable, such finishes,processes, or materi
24、als may be used.4.4 ToxicityThe materials (in their cured state) used shall cause no skin irritations or other injury to personnel handling thematerial during transportation, operation, or maintenance of the equipment. Exposure of personnel to toxic substances shall not bein excess of the threshold
25、values contained in the American Conference of Government Industrial Hygienists Threshold LimitValues.5. General Requirements5.1 ObjectivesThe RWRS shall be designed and built to withstand a variety of environments while providing an effective andreliable facility for system equipment. The design sh
26、all also be directed toward minimizing the man-hours required to strike orerect RWRSs using common hand tools.5.2 StandardizationThe design and engineering requirements specified herein are designed to encourage standardization ofRWRSs. Existing performance and test criteria have been used to the ma
27、ximum extent possible.5.3 Simplicity of DesignThe RWRS shall represent the simplest design consistent with functional and performancerequirements, expected service conditions, and structure life.5.4 RWRS Life, Reliability and MaintainabilityThe design life for a typical structure shall be 15 years.6
28、. Physical Properties Requirements6.1 Interchangeability of PartsLike units, assemblies, sub-assemblies, and replaceable parts shall be physically andfunctionally interchangeable without modification of either such items or the unit. Demonstration of the interchangeability ofselected panels and hard
29、ware shall be conducted.6.2 Special ToolsThere shall be no special tools or equipment required to erect or strike RWRSs. Standard hand tools maybe provided as required.6.3 Physical SecurityA means shall be provided to secure all openings, folding panels, and removable components in orderto prevent u
30、nauthorized entry.6.4 Lighting ProvisionIf lighting is installed as part of the basic RWRS, all RWRS tests shall be conducted with suchprovisions installed.5 Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001,15096, http:/www.sae.org.E1925 1826.5 Electrical Groun
31、dingThe RWRS electrical system shall be grounded through electrical input cable back to the powersource ground.6.6 Input-Output Panels and OpeningsAll RWRS tests shall be conducted with the panels and openings installed ifinput-output panels and openings are installed as part of the basic RWRS.6.7 E
32、lectrical Power ConnectorWhen an electrical power connector is provided as part of the basic design of a nonexpandableor expandable RWRS, that connector shall be a class L connector in accordance with MIL-C-22992E.6.8 Lightning ProtectionA separate grounding system for lightning protection shall be
33、designed for the RWRS.6.9 Human Engineering and SafetyThe provisions of MIL-STD-1472D applicable to RWRSs shall be implemented.7. Performance Requirements7.1 Air TransportabilityThe air transportability of all RWRS shall comply with the guidelines of MIL-STD-1791. See 10.2for verification test.7.2 G
34、round MobilityThe RWRS shall be capable of withstanding the shocks and vibrations induced by ground transportequipment over the mobility courses described for Type V mobility in SAE-AS8090. See 10.3 for verification test.7.3 Rail TransportabilityThe RWRS shall be capable of withstanding the shocks i
35、nduced by rail transport without damage.See 10.4 for verification test.7.4 Forklift HandlingThe RWRS shall be capable of withstanding the stresses of forklift movements or shall be marked “DONOT FORKLIFT.” See 10.5 for verification test.7.5 Erecting and StrikingErecting and striking expandable and n
36、onexpandable RWRS shall be accomplished within twoman-hours per 150 square feet (ft2) (14 m2) of floor space. The RWRS shall be capable of being erected and struck on a surfacethat has up to a 24-in. (610-mm) 24 in. (610 mm) differential in grade to the diagonal dimension of the RWRS floor. See 10.6
37、 forverification test.7.6 Weather SealsWeather seals shall be designed to be an integral part of the RWRS and shall be designed to be readilyreplaceable by user in the field without the use of special tools. This requirement shall be verified by demonstration.7.7 AirtightnessThe RWRS shall not permi
38、t air leakage in either the shipping or operational configuration, as specified in 10.7and 10.8 verification test.7.8 BlackoutThe RWRS shall not permit light emission with the doors closed, in an operational mode. See 10.9 forverification test.7.9 IceThe RWRS design shall not permit water accumulati
39、on in pockets, creases, fissures, and so forth, which could causestructural damage upon freezing. The operation of moveable RWRS components shall not be impaired unduly by the formationof ice anywhere on the RWRS structure. This requirement shall be validated by analysis.7.10 Wind Velocities (Load)W
40、hen tied down, the RWRS shall withstand winds up to 100 mph (160 km/h) steady state, withgusts up to 120 mph (190 km/h). This requirement shall be validated by analysis.7.11 Altitude (Low Pressure)The RWRS shall use devices permitting air passage and allowing pressure equalization topreclude damage
41、to the RWRS. At least a total of 12 in.2 of vent area for each 10 ft length (2500 mm2 of vent area for each metrelength), or fraction thereof, or RWRS shall be provided. This requirement shall be verified by analysis.7.12 Humidity ResistanceThe RWRS shall withstand daily exposure of up to 97 % relat
42、ive humidity for 20 h and exposureof 100 % relative humidity (with condensation) for 4 h. See 10.10 for verification test.7.13 Marine Corrosion ResistanceThe RWRS shall be fully serviceable when exposed to a salt environment as specified in10.11. All hardware including fasteners, jacks, and seals sh
43、all show no evidence of corrosion or degradation following 96 h ofexposure to this simulated environment. See 10.11 for verification test.7.14 Temperature RangeIn storage, the RWRSs shall be capable of withstanding exposure to temperatures of 70 to160F160 F (57 to 71C).71 C). In transit, the RWRSs s
44、hall be capable of withstanding exposure to temperatures of 65 to160F160 F (54 to 71C)71 C) with personnel access at low end of range. Operational temperature of RWRS shall be 40 to120F120 F (40 to 49C).49 C). See 10.12 for verification test.7.15 Solar Loads Assembled RWRSThe RWRS shall withstand a
45、simulated solar load outer skin temperature of 205F(96C)205 F (96 C) while internal temperature is maintained at 85F (29C).85 F (29 C). See 10.13 for verification test.7.16 Temperature ShockRWRS panels, windows, and other components shall withstand a temperature shock from 160 to70F70 F (71 to 57C)5
46、7 C) without separation, delamination cracks, or degradation. See 10.14 for verification test.7.17 Heat TransferThe RWRS shall have an overall heat transfer coefficient less than or equal to 0.35 Btu/(h*ft2*F)(2.0W/(m2*K), in the operational configuration. Heat transfer coefficient for nonexpandable
47、 shelters shall be less than or equalto 0.35 Btu/hr-ft2*F in the transport configuration. See 10.15 for verification test.E1925 1837.18 Blowing SandThe external moving parts of the RWRS in transport or operational mode shall be designed to resist theeffects of blowing sand. External moving parts sha
48、ll be designed to operate and withstand particle concentrations of 1.32 104lb/ft3 (2.19 g/m3) with a wind velocity of 1750 6 250 ft/min (8.9 6 1.3 m/sec) without degradation. Such particles shall rangein size from 6 103 in. (150 m) to 4 102 in. (1000 m). Relative humidity shall be less than 23 %. Se
49、e 10.16 for verificationtest.7.19 Sunshine (Ultraviolet Effects)Ultraviolet effects shall neither significantly degrade nor affect the serviceability of RWRScomponents or materials for the service life of the RWRS. See 10.17 for verification test.7.20 Flame ResistanceThe RWRS shall be designed to be flame resistant. See 10.18 for verification test.7.21 FungusThere shall be no degradation of RWRS components due to fungus growth. Materials shall be selected tominimize fungal growth. Se
