1、. Q 2.1 Government documents, HIL-S-51LI228 42 m 7777706 0182230 T m MIL-S-514228( EA) 24 September 1987 SUPERSEDING MIL-S-51422A( EA) 21 June 1979 MILITARY S PEC IF IC ATIOYJ SHELTER AND ENT-RANCE ASSENBLY - CHEMICAL-BIOLOGICAL SHELTER SYSTEM: INFLAT.4BLE This specification is approved for use with
2、in U.S. Army Chemical Research , Development and Engineering Center, Department of the Army, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for one type and size of semicircular-shaped, double-wall
3、ed, air-supported chemical-biological (CB) shelter tent assembb, including entrance. It also provides for procurenent of either the shelter or entrance separately (see 6.2). 2. APPLICABLE WCUMENTS 2.1.1 Specifications and standards. The following specifications and stan- dards form a part of this sp
4、ecification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in that issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto , cited in the solicitation. SPECIFICATIONS Fl3DERA.L v-F-o - F
5、asteners , Slide Interlocking . V-T-285 - Thread, Polyester. pp-B-636 - Boxes , Shipping , Fiberboard. PPP-C-843 - Cushioning Material, Cellulosic. pPP-T-60 - Tape : Packaging , Waterproof . : Beneficial comments ( recommendations , additions , deletions) and any perti- : : nent data which may be of
6、 use in improving this document should be addressed: : to: Commander, U.S. Army Chemical Research, Development and Engineering : Center, ATTN: SMCCR-SFT-S, Aberdeen Proving Ground, MD 21010-5423 by using: : the self-addressed Standardization Document Improvement Proposal (DD Form : : 1426) appearing
7、 at the end of this document or by letter. AMSC N/A FSC 4240 DICTRIBIJTION STATEMENT A. Approved for public release; distribution is unlimited . THIS DOCUMENT CONTAINS PAGES. , -. . Licensed by Information Handling ServicesMIL-S-51422B 42 W 9999906 O382ZG IJ W MIL-S-51422B( EA) MILITARY MIL-P-116 -
8、reservation , Methods of. MIL-P-5425 - Plastic, Sheet, Acrylic, Heat Resistant, MIL-F-21840 - Fastener Tape, Hook, and Pile, Nylon. MIL-C-43307 - Cord, Nylon, Solid Braid, General Purpose. MIL-C-43344 - Cloth, Laminated and Cloth, Coated (Chloroprene Coated) , STANDARDS FEDERAL Fed. Test Method Std.
9、 No. 191 - Textile Test Methods, Fed, Std. No. 595 - Colors. Fed. Std, No. 751 - Stitches, Seams, and Stitchings. MLLITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-129 - Marking for Shipnent and Storage. MIL-STD-171 - Finishing of Metal and Wood Surfaces. MIL-STD-282 -
10、Filter Units, Protective Clothing, Gas-Mask Components Attribut es . and Related Products: Performance Test Methods , 2.1.2 Drawings. The following drawings form a part of this specification to the extent specified herein, Unless otherwise specified, the issues shall be those in effect on the date o
11、f the solicitation. DRAWINGS U.S. ARMY ARMAMENT, MUNITIONS AND CHEMICAL COMMAND U. S. ARMY CHEMICAL RESEARCH, DRVELDPMENT AND ENGINEERING CENTER 5-19-5178 - Shelter, Inflatable, Chemical-Biological, Shelter 5-19-5250 - Entrance , Inflatable , Chemical-Biological , Shelter PL 5-19-6822 - Shelter and
12、Entrance with Accessories. System, System. SPECIAL PACKAGING INSTRUCTIONS (SPI) P5-19-5178 - Shelter, Inflatable, M5l. P5-19-5250 - Entrance, Protective. (Copies of specifications, standards, and drawings required by contractors in connection with specific acquisition functions should be obtained fr
13、om the con- tracting activity or as directed by the contracting activity.) e P O a 2 Licensed by Information Handling Services MIL-S-53422B 42 W 9799906 O382232 3 a MIL-S-5 1422B( EA) 2.2 Other publications. The following documents form a part of this speci- fication to the extent specified herein.
14、Unless otherwise specified, the issues of the documents which are indicated as DOD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless other- wise specified, the issues of documents not listed in the DODISS shall be the issue of the nongovernment documents
15、which is current on the date of the solici- tat ion. United States Army Standard Color Card for the Official Standardized Shades f Sewing Threads. -_ (Application for copies should be addressed to the Color Association of the United States, Inc. , 343 Lexington Avenue, New York, New York 10016.) AMJ
16、3RICA.N SOCIETY FOH TESTING AND MATERIALS (ASTM) ASTM Standards D 1003 - Haze and Luminous Transmittance of Transparent Plastics. D 3351 - Standard Practice for Commercial Packaging. (Application for copies should be addressed to ASTPI, 1916 Race Street, Philadelphia , PA 13103 ) (Nongovernment stan
17、dards and other publications are normally available from the organizations which prepare or which distribute the documents. These docu- ments also raay be available in or through libraries or other informational ser- vices. ) 2.3 Order of precedence. In the event of a conflict between the text of th
18、is specification and the references cited herein, the text of this specifica- tion shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3 REQUIREMENTS 3.1 Materials and components. All materials
19、and components cited on Draw- ings 5-19-5178 and 5-19-5250 and the accessory items on PL 5-19-6822 or on the subsidiary drawings shall conform to the specifications listed thereon, or to the specific characteristics set forth on the drawings. one of two subsystems which comprise the M5l Shelter Syst
20、em. PL 5-19-6822 describes 3.1.1 Shelter fabrics. 3.1.1.1 Exterior walls. The exterior walls of the shelter section shall be fabricated from cloth conforming to type I, class 1, of MIL-C-43944. 3 Licensed by Information Handling ServicesHIL-S-SL422B 42 7977706 0382233 5 - MIL-S-51422B( EA) 3.1.1.2 I
21、nterior walls. The interior walls of the shelter section shall be fabricated from cloth conforming to type I, class 2 of MIL-C-)+3944. 3.1.1.3 Seal webs. The seal webs at the section junctures shall be fabri- cated froin cloth conforming to type III of MIL-C-43944. 3.1.1.4 Retaining webs. The retain
22、ing webs within the section junctures shall be fabricated from cloth conforming to type IV of MIL-C-)+3944. 3.1.1.5 Floor material. The floor of the shelter section shall be fabri- cated from cloth conforming to type II of MIL-C-43944. 3.1.2 Tpe, chloroprene-backed. The tape used to seal the butt se
23、ams and the exposed web-seam stitching on both the exterior and interior of the shelter shall be a polyvinylfluoride film to which is applied an uncured chloroprene rubber, 0.013 (-0 or +0.003) inch thick. form to L-P-1040, type III, class 1, grade A, olive-green 207 for the exterior of the shelter
24、and type III, class 1, grade B, white for the interior of the shelter. The uncured chloroprene film tape shall be applied to the seam using type I adhesive, 3.1.8, as indicated in the drawings with the chloroprene side facing the seam and cured. time lapse from its application to the polyvinylfluori
25、de film to its use in the finished shelter, and the method of curing the chloroprene shall be such that the performance requirements of 3.1.8.1 and 3.3.2.3 are met. Agent penetration resistance shall be not less than 100 minutes for mustard (H) and 200 minutes tor GB when tested as specified in 4.4.
26、10.1. This poly-vinylfluoride film shall con- The formulation of the uncured chloroprene, the 3.1.3 Window material. The material used in the window shall be a clear If a double layer, thefilm shall be laminated together polyurethane film either a single layer 0,010 f .O02 inch thick or two layers,
27、each 0.005 inch thick. with either heat and pressure or polyurethane adhesive to form an optically clear laminate 0.010 + .O02 inch thick. the following requirements. The window material shall conform to (a) After accelerated weathering in accordance with Method 5804 Fed Test Method Std. No. 191 for
28、 200 hours, the window material shall have a haze factor not exceeding 25 when tested as specified in 4.4.11. (b) The window material shall maintain flexibility and there shall be . no indication of cracking or delamination (if laminated) at -25F. (c) The initial and after low temperature agents pen
29、etration resis- tance shall be no less than 100 minutes for Mustard (H) and 200 minutes for GB when tested as specified in 4.4.10. 4 Licensed by Information Handling ServicesI I 1 ! ! I l I , I 1 I l I I l t I I I I l 1 i MIL-S-51422B( EA) 3.1.4 Viewing ports, entrance. The material for the two airl
30、ock door view- ing ports shall be plexiglass, conforming to MIL-P-5425. The windows shall be fabricated from stock of the required thickness and shall be the size specified on Drawing 5-19-5250. Material used for this application shall not be tinted, stained, or otherwise colored. 3.1.5 Thread, poly
31、ester. The thread shall conform to type I, class 1, sub-class B of v-285. 3.1.5.1 Color. The thread for stitching on the inside of the shelter sec- tion shall be white in conformity with color No. 37875 of Fed. Std. No. 595 or shall conform to the applicable shade of the U.S. Army Standard Color Car
32、d for the Official Standardized Shades of Sewing Threads. on the outside of the shelter shall be yed olive drab shade S-1 (cable No. 66022). than the standard shape sample (see 6.3). able, the dyed thread shall show good fastness to weathering. The thread for stitching The dyed thread shall show fas
33、tness to weathering equal to or better If no standard shade sanple is avail- 3.1.6 Fastener tape. The nylon hook and pile fastener used in the shelter and entrance shall conform to type I, class 1 of MIL-F-21840 except that no color samples shall be required.- Colors shall conform to Velcro No. 330
34、(Black), No. 660 (OD) and No. 12 (White). minimum width shall be 0.625 inch. Maximum width shall be 1.00 inch and -3.1.7 Fastener, slide. The interlocking slide fastener which attaches the removable wall section to the rear shelter wall and is used in shelter inter- connection shall conform to B.F.
35、Goodrich type 411, vapor-tight zipper or equal. The slide fastener chain shall also conform to the applicable section of v-F-1 06 . 3.1.8 Adhesives. The adhesives used for shelter fabrication and for joining assemblies shall be of the types listed below (see 6.5): Type I - Adhesive for Bonding Seam
36、Sealing Tape. Type II - Adhesive for Bonding Structural Seams. 3.1.8.1 Adhesive requirements. When tested as specified in 4.4.3, type I and II adhesives shall permit no separation, slippage, or edge peeling of either the butt seam strap or the sealing tape. 3.1.9 Lines, tent. The lines shall conform
37、 to MIL-C-43307. 3.2 Manufacture and assembly. The shelter and entrance assemblies shall be manufactured as specified on Drawings 5-19-5178 and 5-19-5250 or on subsidiary drawings. 3.3 Design and construction. The design and construction of components and assemblies covered by this specification sha
38、ll conform in all respects to the drawings listed in section 2 and as specified herein. 5 Licensed by Information Handling ServicesMIL-S-514 22B( .EA) 3.3.1 Stitching, machine. 3.3.1.1 Types of stitching. Stitching shall conform to Fed. Std. No. 751, as follows: For all stitching - Type 301 and Type
39、 401, 5 to 7 stitches per inch. Thread breaks in stitching shall 3.3.1.1.1 Type 301 and type 40lstitching. be backstitched not less than one inch at each break. where ends are turned under in a hem or held down by other stitching, will be: Stitching ends, except EITHER: backstitched not less than on
40、e inch. I - OR: joined material and applying adhesive over the stitching extension so as to hold the thread to the fabric and fill the needle holes. cemented, by extending the stitch line not less than one inch beyond the 3.3.1.1.2 Box stitching. Box stitching and WW stitching shall be used alter- n
41、ately depending upon the type of machines available to the contractor, Box stitching and/or WIq stitching shall conform to requirements for stitch pattern, stitches per inch, size and type of thread, and at; least three or more tying, overlapping or backstitches shall be used to secure the ends of s
42、titching. O 3.3.1.2 Type of seam. Seam type shall conform to Fed. Std. No. 751 require- ments for the seams shown on the applicable drawings. 3.3.1.3 Thread ends. All thread ends shall be trimmed to not more than one half inch length. 3.3.2 Joints, seams, and splices. 3.3.2.1 Cementing. AL1 joints,
43、seams, and splices to be cemented and sealed shall be thoroughly cleaned and prepared for cementing and shall be smoothly cemented and free of puckers, unadhered pockets, or tunnels. Care shall be exercised, while the adhesive is curing, that the cemented joints, seams, and splices shall not be subj
44、ected to handling or draping stresses sufficient to produce slippages and separations. 3.3.2.2 Breaking strength. All cemented structural joints, seams, and splices shall have a rninimum cut-strip breaking strength of 200 pounds when tested as specified in 4.4.1. structural cemented Joints. Structur
45、al joints, seams and splices are any cemented composite which comes under direct stress when the structure is inflated . This requirement shall not apply to non- 3.3.2.3 Dead load strengths at room temperature and at 200F. Cemented butt seams tested periodically during production of the shelter unde
46、r condition (a and condition-(b) of 4.4i4.2 shki show no separation, slippage, or edge peel- ing of either the butt seam strap or of the sealing tape. 6 1 I l i I I I 1 I I I I I I I I l i l Licensed by Information Handling ServicesI I I I 1 I I l i I I I I I I I 1 I I I I I I I I I i I I I I l I l
47、l l MIL-S-51422B 42 W 7777706 0382236 O MI L-S- 5 14 22B ( EA) 3.3.2.4 Overpressure seam strength. When the shelter and entrance assembly is subjected to the inflation test described in 4.4.5, there shall be no evi- dence of (a) separation or slippage between the layers composing the cemented butt s
48、eams, no evidence of (b) excessive overload in the sewn seams composite resulting in edge peeling, slippage or separation of the sealing tapes through- out the shelter. 3.3.2.5 Sewn web seam strength. In addition to the requirements specified in 3.3.2.2, the shelter material and the material utilize
49、d for seal webs when incorporating a sewn juncture shall be capable of resisting separation under dead loads of 50 pounds for 24 hours at 70F + 2F and 25 pounds for 24 hours at 180F - + 2F when tested as specified in 4.F.2. 3.3.3 Attachment of slide fastners. Care shall be exercised to trim all thread ends and maintain specified distances between edges of fabric attached to slide-fastener tape so that there will be no interference with the operation of the slider. 3.3.4 Holes for inflation ducts and air pumps. Care shall be exercised when cutting the holes in the wall
