1、 Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, ATTN: SEA 05Q, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 by using the Stand
2、ardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimMIL-PRF-32107 27 June 2002 PERFORMANCE SPECIFICATION HOSE, AIR DUCT, GENERAL SPECIFICATION FOR This specifi
3、cation is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers textile duct, manufactured of porous fabric, used as air distribution devices in heating, ventilating, and air conditioning systems for Naval surface ship use. It is
4、 not appropriate for air transportation duct, and will not transit any bulkhead or deck. 1.2 Classification. Textile ducts are classified by Part or Identifying Numbers (PINs). General PIN structure is outlined in 6.6. Refer to individual specification sheets for duct specific details. 2. APPLICABLE
5、 DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to en
6、sure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
7、rom IHS-,-,-FSC 4720 ited. MIL-PRF-32107 2 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those
8、 listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS FEDERAL A-A-59291 - Ink, Marking (For Parachutes and Other Textile Items) P-D-245F - Detergent, General Purpose, Laundry and Ha
9、nd Dishwashing (Granular) DEPARTMENT OF DEFENSE MIL-S-901 - Shock Tests, H.I. (High Impact) Shipboard Machinery, Equipment, and Systems, Requirements for (See supplement 1 for list of specification sheets.) STANDARDS FEDERAL FED-STD-4 - Glossary of Fabric Imperfections DEPARTMENT OF DEFENSE MIL-STD-
10、167-1 - Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited) (Unless otherwise indicated, copies of the above specifications, standards, and handbooks are available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philad
11、elphia, PA 19111-5094.) 2.2.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS
12、 NAVSEA 803-7379036 - Textile Duct Mounting Standard Drawing NAVSEA 803-7379037 - Textile Duct Installation Standard Drawing Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32107 3 (Unless otherwise indicated, copies of the above drawings are
13、 available from Commander, Portsmouth Naval Shipyard, Portsmouth, NH, 03804-5000.) 2.3 Non-Government publications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in
14、 the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM B 221 - 00 - Aluminum and Aluminum Alloy Extrud
15、ed Bars, Rods, Wire, Profiles, and Tubes ASTM D 737 - 96 - Textile Fabrics, Air Permeability of ASTM D 2050 - 87 - Standard Terminology Relating to Zippers ASTM D 2261 - 96 - Fabrics, Woven, by the Tongue (Single Rip) Method (Constant-Rate-of-Extension Tensile Testing Machine), Tearing Strength of A
16、STM D 6193 - 97 - Stitches and Seams (DoD Adopted) (Application for copies should be addressed to the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) UNDERWRITERS LABORATORIES INC UL 181 - Air Ducts and Air Connectors, Factory-Made (DoD Adopted)
17、UL 214 - Tests For Flame-Propagation of Fabrics and Films (DoD Adopted) UL 723 - Test for Surface Burning Characteristics of Building Materials (DoD Adopted) (Application for copies should be addressed to the Underwriters Laboratories, Inc., 12 Laboratory Drive, Research Triangle Park, NC 27709-3995
18、). INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ISO 5077 1984 (E) - Textiles - Determination of Dimensional Change in Washing and Drying (Application for copies should be addressed to the Intl Organization for Standardization, Case Postale 56, Geneva, Switzerland, CH-1211.) 2.4 Order of precedence
19、. In the event of a conflict between the text of this document and the references cited herein (except for related associated specifications or specification sheets), the text of this document takes precedence. Nothing in this document, Provided by IHSNot for ResaleNo reproduction or networking perm
20、itted without license from IHS-,-,-MIL-PRF-32107 4 however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Specification sheets. The individual item requirements shall be as specified herein and in accordance with the applicable specific
21、ation sheet. In the event of any conflict between the requirements of this specification and the specification sheet, the latter shall govern. 3.2 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2. 3.2.1 Standard sample. When a st
22、andard sample is available, the cloth shall match the sample with respect to all characteristics for which the standard is referenced (see 6.4). 3.3 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximu
23、m extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.4 Materials and components. The materials and components shall conform to applicable specifications, standards, and specification she
24、ets required herein. 3.4.1 Textile duct materials. Textile duct shall be constructed of the following materials and components. 3.4.1.1 Duct. The fabric shall be meta-aramid or a blend consisting of not less than 93 percent by weight of meta-aramid, not greater than 5 percent of para-aramid, and not
25、 greater than 2 percent by weight of an anti-static fiber. The duct may be constructed of a double thickness of fabric to meet the performance characteristics of 3.5. The fabric shall not degrade below 572 degrees Fahrenheit. 3.4.1.1.1 Permeability. The fabric shall be within the specified permeabil
26、ity range (see 3.5.1). 3.4.1.2 Thread. The thread shall be meta-aramid or a blend of meta-aramid, para-aramid, and anti-static fibers. The thread shall not degrade below 572 F. 3.4.1.3 Cord. The cord shall be meta-aramid or a blend consisting of not less than 93 percent by weight of meta-aramid, not
27、 greater than 5 percent of para-aramid, and not greater than 2 percent by weight of an anti-static fiber. The cord shall not degrade below 572 F. The cord diameter shall be sized to fit into the mounting track (see 3.4.3). The cord shall be free of kinks or knots that will deter easy insertion into
28、the track channel. The ends of the cord shall be finished to prevent fraying when the textile duct fitting is laundered. Cord shall be stitched at the ends of the duct to prevent migration of cord. The finish on the ends shall not prevent the cord from insertion in the channel. Provided by IHSNot fo
29、r ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32107 5 3.4.1.4 Mesh. The mesh shall be meta-aramid or a blend consisting of not less than 93 percent by weight of meta-aramid, not greater than 5 percent of para-aramid, and not greater than 2 percent by weight of
30、an anti-static fiber. The mesh shall not degrade below 572 F. 3.4.1.5 Zipper. The zipper shall be separable, as defined in ASTM D 2050. The chain, slider, and other non-fabric parts of the zipper shall be brass, or equivalent. The cloth tape shall be manufactured from meta-aramid or a blend consisti
31、ng of not less than 93 percent by weight of meta-aramid, not greater than 5 percent of para-aramid, and not greater than 2 percent by weight of an anti-static fiber. The slider side of the zipper stringer shall be sewn on the inside of the air inlet end of the textile duct piece. The mating zipper s
32、tringer, with the separable pin, shall be sewn on the outside of the air leaving end of the textile duct piece. The zipper top and bottom stops shall be located at the bottom (6 oclock) position of the textile duct piece. The zipper stops may overlap up to 1 inch, as needed, to suit standard zipper
33、lengths. The zipper shall fully encircle the duct such that no gaps are evident. The zipper shall be installed such that two textile duct fittings can be zipped together with their respective cords in alignment, and shall not be visible from the outside of the installed textile duct section. 3.4.1.6
34、 Color. The color and shade of the finished item shall approximate the standard sample when available. When a standard sample is not available, the color and shade shall approximate the first article sample, which has been approved by the contracting officer as conforming to the desired color and sh
35、ade (see 6.2). The color of the textile duct shall be natural (non colored), khaki, blue, black, or midnight blue. The cord used for all textile duct items and the mesh used for the Static Regain Device, Slots or Caps may be of any color, however, it shall be consistent within a purchase order. The
36、zipper tape may be natural or the same color as the textile duct to which it is attached. If the textile duct is constructed of two layers of cloth, the inner layer shall either match the color of the outer layer or be natural (non-colored). 3.4.1.6.1 Design and patterns. The finished product shall
37、be natural or a solid color and tint. 3.4.2 Textile duct construction. 3.4.2.1 Straight fittings. Straight fittings of duct shall conform to the dimensions in the specification sheets. Straight fittings of textile duct, that are a minimum of 12 inches in length, shall have openings in the side of th
38、e duct when specified. The openings shall be either a slot 0.125 inch wide or a row of holes 0.1875 inch in diameter. 3.4.2.1.1 Openings. Openings consisting of either slots or holes shall be manufactured in the fabric of the textile duct for straight fittings. 3.4.2.1.1.1 Oclock positions. When ope
39、nings are specified, they shall be located at the 2 oclock, 4 oclock, 8 oclock, or 10 oclock position as viewed in the airflow direction. 3.4.2.1.1.2 Slots. When specified, slots shall be 0.125 inch in width and extend from zipper to zipper. The slot shall be reinforced such that the slot shall not
40、be wider than 0.1875 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32107 6 inch when the duct is pressurized to an air pressure of 0.5-inch water gauge. The slot reinforcing may consist of mesh (see 3.4.1.4). The edges of the slots shall ha
41、ve seams to prevent fraying of the fabric (see 3.4.2.6). 3.4.2.1.1.3 Holes. When 0.1875-inch diameter holes are specified, the holes shall not be larger than 0.1875-inch diameter when the duct is pressurized to an air pressure of 0.5-inch water gauge. The holes shall extend from zipper to zipper, wi
42、th a spacing between hole edges of not less than 0.875 inch nor greater than 1.0 inch. The hole edges shall be seared or overstitched to prevent fraying. 3.4.2.2 Caps. Caps shall have an opening in the end of the duct, when specified. The opening shall be a square opening, called a patch. Caps shall
43、 conform to the dimensions in the specification sheets. 3.4.2.2.1 Patch. The patch shall be a square opening located in the center of the end of the cap. The patch shall have a mesh inset (see 3.4.1.4). The patch shall not be larger than the specified size when the duct is pressurized to an air pres
44、sure of 0.5-inch water gauge. The edges of the patch shall have seams to prevent fraying of the fabric. 3.4.2.3 Duct fittings other than straight. Duct fittings shall conform to the dimensions in the specification sheets. 3.4.2.4 Labels. Labels shall be made of a white or off-white fire-resistive fa
45、bric sewn to the inside of one end of the finished textile duct fitting. It may be stitched on the inside of the zipper flap, or it may be stitched into a seam such that it is not visible from the outside when installed in a permanent installation. The label shall not hinder operation of the zipper,
46、 nor shall it flap when installed in an operating air conditioning or ventilation system. The label shall be written in black ink specified in A-A-59291. Each label shall have the following minimum information: a. Part identification number. b. Color. c. Cage code of the manufacturer of the finished
47、 article. d. Month and year the finished product was manufactured. 3.4.2.5 Weave and yarn count. Any weave and yarn count may be used consistent with the total performance requirements of this specification and the intended use of the finished item. 3.4.2.6 Cut edges. Cut edges of the fabric shall b
48、e finished by searing or overstitching prior to fabrication of the article to prevent fraying, however, seam edges may be finished after assembly. No finished cut edges, except for holes, shall be visible from the outside of the duct fitting. The ends of the textile duct fitting shall be seamed to f
49、orm a zipper flap, with no finished cut edge visible from the outside of the textile duct fitting. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32107 7 3.4.2.7 Seam and stitching. Sewing shall conform to ASTM D 6193. Each row of stitching shall be straight and parallel to the seam edge. The straightness of the stitching in any row shall be maintained within a tolerance of 0.0625 inch. The ends of t
