1、 MIL-DTL-32117A 24 February 2004 SUPERSEDING MIL-DTL-32117 05 February 2003 DETAILED SPECIFICATION HELMET COVER, REVERSIBLE, MARPATTM WOODLAND AND DESERT PATTERN CAMOUFLAGE, MARINE CORPS This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1
2、 Scope. This document covers the requirements for the helmet covers that are worn over the Marine Corps Lightweight helmet, and the Personnel Armor Systems, Ground Troop (PASGT) helmet, and the Modular Integrated Communications Helmet (MICH). 1.2 Classification. The helmet cover assembly will be of
3、one type and in the following sizes as specified (see 6.2). Type I Marine Corps Reversible Helmet Cover Type II Modular Integrated Communications Helmet (MICH) Reversible Helmet Cover 1.3 Schedule of sizes. The helmet cover will be constructed in the following sizes (see 6.2): SCHEDULE OF SIZES Type
4、 I Type II X-Small/Small Medium/Large X-Large Medium/Large 2. APPLICABLE 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 addit
5、ional information or as examples. While every effort has been made to ensure 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. Comments, suggestions, or
6、 questions on this document should be address to: Defense Supply Center Philadelphia, Clothing and Textiles Directorate, Attn: DSCP-COET (Bldg 6), 700 Robbins Ave., Philadelphia, PA 19111-5092 or emailed to James.Heimandla.mil. Since contact information can change, you may want to verify the currenc
7、y of this address information using the ASSIST online database at www.dodssp.daps.mil. AMSC N/A FSC 8415 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The followin
8、g 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 listed in the solicitation or contract (see 6.2). FEDERAL STANDARDS FED-STD-4 - Glossary of Fabric Imperfections FED-STD-595 - C
9、olors Used in Government Procurement COMMERCIAL ITEM DESCRIPTION A-A-55126 - Fastener Tapes, Hook and Loop, Synthetic A-A-50199 - Thread, Poly Core: Cotton-or Polyester-Covered DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-DTL-32075 - Label: For Clothing, Equipage, and Tentage, (General Use) MIL-PRF-5038
10、 - Tape, Textile and Webbing, Textile, Reinforcing, Nylon (Copies of documents are available online at http:/assist.daps.dla.mil/quicksearch/ or www.dodssp.daps.mil or from the Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2.2 Other Government
11、 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 or contract. DRAWINGS U.S. ARMY RESEARCH, DEVELOPMENT A
12、ND ENGINEERING COMMAND, NATICK SOLDIER CENTER MARPAT Woodland Pattern Green 474 MARPAT Woodland Pattern Khaki 475 MARPAT Woodland Pattern Coyote 476 MARPAT Woodland Pattern Black 477 MARPAT Desert Pattern Urban Tan 478 MARPAT Desert Pattern Light Tan 479 MARPAT Desert Pattern Highland 480 MARPAT Des
13、ert Pattern Light Coyote 481 (Copies of drawings are available from the U.S. Army Soldier and Biological Chemical Command, Natick Soldier Center, ATTN: AMSSB-RIP-TS(N), Natick, MA 01760.) DEPARTMENT OF DEFENSE DoD Standard Color Card for Sewing Thread CODE OF FEDERAL REGULATIONS Title 40, Part 798.4
14、470 (Primary Dermal Irritation) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32117A 3 (Copies of documents are available online at http:/assist.daps.dla.mil/quicksearch/ or www.dodssp.daps.mil or from the Standardization Documents Order De
15、sk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Non-Government publications . The following document forms a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents are those cited in the solicitation or contract (see 6.2).
16、 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM-D-737 - Air Permeability of Textile Fabrics ASTM-D-3775 - Fabric Count of Woven Fabrics ASTM-D-3776 - Mass Per Unit Area (Weight) of Fabric, Option C ASTM-D-5034 - Breaking Force and Elongation of Textile Fabrics (Grab Test) ASTM-D-6193 - Stitc
17、hes and Seams (Copies of documents are available on line at www.astm.org or from the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19426-2959.) AMERICAN ASSOCIATION OF TEXTILE CHEMISTS AND COLORISTS (AATCC) AATCC-8 - Colorfastness to Crocking: AATCC Crockme
18、ter Method AATCC-15 - Colorfastness to Perspiration AATCC-16 - Colorfastness to Light AATCC-20A - Fiber Analysis: Quantitative AATCC-81 - pH of the Water-Extract from Wet Processed Textiles AATCC-61 - Colorfastness to laundering, Home and Commercial: Accelerated AATCC-96 - Dimensional Changes in Com
19、mercial Laundering of Woven and Knitted Fabrics Except Wool AATCC Evaluation - Instrumental Color Measurement Procedure 6 AATCC Evaluation - Visual Assessment of Color Differences of Textiles Procedure 9 (Copies of documents are available on line at www.aatcc.org or from the American Association of
20、Textile Chemists and Colorists, P.O. Box 12215, Research Triangle Park, NC 27709-2215.) AMERICAN SOCIETY FOR TESTING AND MATERIALS ASQC Z1.4 - Sampling Procedures and tables For Inspection by Attributes (Copies of documents are available online at www.asq.org or from the American Society for Quality
21、 Control, 611 East Wisconsin Avenue, Milwaukee, WI 53202.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) MISCELLA
22、NEOUS Principle and Methods of Toxicology, A Wallace Hayes (editor), 1989, pages 394-396 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32117A 4 (Applications for copies of referenced documents should be addressed to Raven Press, 1185 Avenue
23、 of the Americans, New York, NY 10036.) Marzulli, F. and H. Maibach, “Contact Allergy: Predictive Testing in Humans,” Advances in Modern Toxicology, Volume 4, pages 353-372, 1977 (Applications for copies should be addressed to U.S. Army Center for Health Promotion and Preventive Medicine, ATTN: MCHB
24、-DC-TTE, Bldg., E-2100, Aberdeen Proving Grounds, MD 21010-5422.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regul
25、ations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection (see 4.2 and 6.3). 3.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally pref
26、erable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.3 Design. The helmet cover is reversible and can be worn in both desert and woodland env
27、ironments. The Type I cover is designed to fit over the Marine Corps Lightweight Helmet, and the Personnel Armor System, Ground Troops (PASGT) helmet. The Type II cover is designed to fit over the Modular Integrated Communications Helmet (MICH), with front and back openings, and crown loop fastener
28、tape to accommodate communications equipment. See Figures 1 and 2. The cover provides the helmet with signature reduction in the visible and near infrared spectral ranges, which provides against detection by visual observation or through passive night vision devices. The cover also provides noise re
29、duction (softening noise if helmet strikes something). The cover contains buttonholes that allow for the attachment of indigenous plant material and other camouflage enhancing aids. 3.4 Basic material. The basic material for the reversible helmet cover shall be midweight nylon/cotton twill cloth pri
30、nted with a desert pattern print on the face side and the woodland pattern print on the back side, and conforming to the requirements specified below. The cloth shall show no toxicity when used as intended and when tested as specified in 4.4.1 (see 6.2e). The suggested sole source shall be in accord
31、ance with 6.6. 3.4.1 Nylon. The nylon shall be first quality, high tenacity, semi-dull staple having a nominal cut length of 1-1/2 inches and a round cross-section, with a nominal denier of 2.25 to 2.5. The use of any form of nylon waste is prohibited, such as undrawn fiber, mixtures of deniers, lus
32、ters or cross sections, and waste from any stage of fiber production: whether drawn, undrawn, or mixed or garneted fiber. The contractor shall submit the fiber producers certification that each lot nylon staple used conforms to the requirements specified herein. Testing shall be as specified in para
33、graph 4.4.2. 3.4.2 Cotton. The cotton shall be carded. Testing shall be as specified in paragraph 4.4.2. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32117A 5 3.4.3 Yarn. The warp and filling yarn shall be singles made from a blend of 50 (
34、+ 5) percent nylon with the remaining percentage cotton, based on the dry weight of the desized cloth when tested as specified in paragraph 4.4.2. 3.4.4 Weave. The weave shall be a 2/1 left-hand twill. 3.4.5 Fiber and fabric identification. Each roll of finished cloth shall be labeled or ticketed fo
35、r fiber content in accordance with the Rules and Regulations under the Textile Fiber Products Identification Act. Each roll shall indicate cloth type. Testing shall be as specified in paragraph 4.4.2. 3.4.6 Physical requirements. The cloth shall conform to the requirements in Table I when tested as
36、specified in paragraph 4.4.2. TABLE I Physical requirements. Wt. Per sq. yd. ounces Yarns per inch minimum Breaking strength minimum Tearing strength minimum Air permeability maximum Warp Filling Warp Pounds Filling Pounds Warp Pounds Filling Pounds Cu. ft./min./sq. ft. 7.0 (min.) 86 54 200 125 11 8
37、 25.0 3.4.7 Color. The cloth shall be dyed and printed on the backside of the fabric with the woodland colors. The use of pigments may be allowed. The cloth shall be dyed to a ground shade approximating Khaki 475. The Woodland camouflage pattern shall be obtained by roller or screen-printing using e
38、ither three or four rollers or screens, as appropriate for the Green 474, Khaki 475, Coyote 476 and Black 477 areas of the pattern. The cloth shall be dyed and printed on the face side with the desert colors. The cloth shall be dyed and printed with the warp effect side as the face. The cloth shall
39、be dyed to a ground shade approximating Light Tan 479. The desert camouflage pattern shall be obtained by roller or screen-printing using either three or four rollers or screens, as appropriate for the Urban Tan 478, Light Tan 479, Highland 480 and Light Coyote 481 areas of the pattern. Resin bonded
40、 pigments are not permitted. 3.4.8 Labile sulfur. The use of dyes and compounds containing sulfur capable of oxidation to sulfuric acid shall be chosen and applied such that the dyed cloth shall contain no more labile sulfur than shown by the standard sample when tested as specified in 4.4.6. When n
41、o standard sample is available, the dyed cloth shall show no more than a slight trace of labile sulfur when tested as specified in 4.4.2. 3.4.9 Color matching 3.4.9.1 Visual matching. The color and appearance of the camouflage printed cloth shall match the standard sample when viewed using AATCC Eva
42、luation Procedure 9, Option A, under filtered tungsten lamps that approximate artificial daylight D75 illuminant with a color temperature of 7500 (+ 200) K with illumination of 100 (+ 20) foot candles, and shall be a good match to the standard sample under horizon lamplight at 2300 (+ 200) K. 3.4.9.
43、2 Instrumental color matching. Each color of the camouflage printed cloth shall match the standard sample using AATCC Evaluation Procedure 6. A color difference greater than a E CMC = 1.0 when using a E CMC (2:1) ratio (D65 /10O) units as compared to the standard sample, shall be basis for rejection
44、. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32117A 6 3.4.10 Colorfastness. The finished camouflage printed cloth shall show fastness to: light (after 40 AATCC standard fading hours or 170 Kilojoules); laundering (after 4 cycles); and pe
45、rspiration (acid and alkaline) and crocking. The colorfastness of the cloth shall be equal to or better than the standard sample, or equal to or better than a rating of “4” using the AATCC Gray Scale for Color Change and a rating of “3-4” using the AATCC Gray Scale for Staining for each of the color
46、s, except the Black 477 shall have an equal to or better than a rating of 2-3. The woodland pattern print shall have a colorfastness to crocking rating when using the AATCC Chromatic Transference Scale Rating equal to or better than 3.0 for all colors except Black 477, which shall have a rating not
47、lower then, 1.0 when tested as specified in 4.4.2. 3.4.11 Pattern execution. The pattern shall reproduce the standard sample in respect to design, colors, and registration of the respective areas. The pattern repeat, of the camouflage printed finished cloth shall be 36 (+ 1.5) inches. Each pattern s
48、hall show solid coverage; skitteriness exceeding that shown on the standard sample in any of the printed areas will not be acceptable. When the standard sample is not referenced for pattern execution, a pattern drawing will be provided, and the pattern of the finished cloth shall match that of the d
49、rawing. 3.4.12 Spectral reflectance. The desert pattern print finished cloth shall meet the spectral reflectance values (in percent) for the visible/near infrared wavelength range, 700 to 860 nanometers (nm) for the colors specified in Table II, when tested as specified in 4.4.2.1. TABLE II Spectral reflectance requirements. Reflectance values (percent) Wavelengths Light Tan 479 Light Coyote 481 Attachment causes damage to the item. Ends of material not seared Searing forms s
