1、 MIL-DTL-44050B INCH-POUND6 February 2009 SUPERSEDING MIL-C-44050A 18 August 1987 DETAILED SPECIFICATION CLOTH, BALLISTIC, ARAMID This specification is approved for use by all Departments and Agencies of the Department of Defense 1. SCOPE 1.1 Scope. This document covers untreated, scoured, water-rep
2、ellent treated, and adhesion modified aramid ballistic cloth. 1.2 Classification. This specification covers the following Types and Classes (see 6.2). 1.2.1 Types. The values listed are nominal, see Table I for acceptable range limits. Type I - 8.25 oz/sq. yd. (fragmentation protection) Type IA - 8.
3、25 oz/sq. yd. (bullet protection) Type II - 14.0 oz/sq. yd. Type III - 6.8 oz/sq. yd. Type IV - 13.2 oz/sq. yd. Type V - 5.7 oz/sq. yd. 1.2.2 Classes. Class 1 - Untreated (scoured) Class 2 - Water-repellent treated Class 3 - Adhesion modified Class 4 - Greige fabric (unfinished, loom-state, no slash
4、ing) Comments, suggestions, or questions on this document should be addressed to: Defense Supply Center Philadelphia, Clothing and Textiles Directorate, ATTN: DSCP Standardization Team, 700 Robbins Avenue, Philadelphia, PA 19111-5096. Since contact information can change, you may want to verify the
5、currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil/. AMSC N/A FSC 8305 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M
6、IL-DTL-44050B 2 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 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
7、every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards,
8、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 cited in the solicitation or contract. FEDERAL SPECIFICATIONS V-T-295 - Thread, Nylon DEPARTMENT OF D
9、EFENSE SPECIFICATIONS MIL-DTL-32072 - Thread, Polyester MIL-DTL-46593 - Projectile, Calibers .22, .30, .50, and 20MM Fragment-Simulating DEPARTMENT OF DEFENSE STANDARDS MIL-STD-662 - V50Ballistic Test for Armor (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/
10、 or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, 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 her
11、ein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. FEDERAL TRADE COMMISSION Rules and Regulations under the Trade Fiber Products Identifications Act (Copies of this document are available online at http:/www.ftc.gov/ or from the Federal Tr
12、ade Commission, Pennsylvania Avenue at Sixth Street, N.W, Washington, DC 20580.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-44050B 3 2.3 Non-Government publications. The following documents form a part of this document to the extent spec
13、ified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. AMERICAN ASSOCIATION OF TEXTILE CHEMISTS AND COLORISTS (AATCC) AATCC Test Method 20A - Fiber Analysis: Quantitative AATCC Test Method 22 - Water Repellency: Spray test AATCC Test
14、Method 70 - Water Repellency: Tumble Jar Dynamic Absorption Test AATCC Test Method 96 - Dimensional Changes in Commercial Laundering of Woven and Knitted Fabrics except Wool (Copies of these documents are available from www.aatcc.org or American Association of Textile Chemists and Colorists (AATCC),
15、 PO Box 12215, Triangle Park, NC 27709-2215) ASTM INTERNATIONAL ASTM D885 - Standard Test Methods for Tire Cords, Tire Cord Fabrics, and Industrial Filament Yarns Made From Manufactured Organic-Base Fibers. ASTM D1422 - Standard Test Method for Twist in Single Spun Yarns by the Untwist-Retwist Metho
16、d ASTM D1423 - Standard Test Method for Twist in Yarns by Direct- Counting ASTM D1907 - Standard Test Method for Linear Density of Yarn (Yard Number) by the Skein Method ASTM D3775 - Standard Test Method for Warp (End) and Filling Count of Woven Fabrics ASTM D3776 - Standard Test Method for Mass Per
17、 Unit Area (Weight) of Fabric ASTM D6193 - Standard Practice for Stitches and Seams ASTM E805 - Standard Practice for Identification of Instrumental Methods of Color or Color-Difference Measurement of Materials (Copies of these documents are available from www.astm.org or ASTM International, 100 Bar
18、r Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959.) NATIONAL INSTITUTE OF JUSTICE NIJ Standard 0101.06 - Ballistic Resistance of Body Armor (Publications are available from http:/www.nlectc.org or National Law Enforcement and Corrections Technology Center, P.O. Box 1160, Rockville, MD 20
19、8491160) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-44050B 4 OTHER PUBLICATIONS Repeat Insult Patch Test Modified Draize Procedure Principle and Methods of Toxicology, (fourth edition), A Wallace Hayes (editor), pp 1057-1060, 2001. (Copi
20、es are available online at http:/www.taylorandfrancis.co./uk or from Taylor and Francis, 325 Chestnut Street, Suite 8000, Philadelphia PA 19106.) US ENVIRONMENTAL PROTECTION AGENCY NATIONAL LIBRARY NETWORK (Laws and Regulations may be found on-line at http:/www.epa.gov/libraries/index.html) 2.4 Orde
21、r of precedence. Unless otherwise noted herein or in the contract, 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 regulations unless a specific
22、 exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified in the contract or purchase order (see 6.2), a sample shall be subjected to first article inspection (see 6. 3) in accordance with 4.3. 3.2 Material. 3.2.1 Fiber. All types of cloth shall be made from virgin para-aramid
23、fiber (see 6.3). 3.2.2 Yarn. Minimum yarn tenacities and elongations to break required below are on the as-spun yarn. 3.2.2.1 Type I and IA. The warp and filling yarns shall be continuous filament, 1000 denier (nominal) and shall have a minimum average yarn breaking tenacity of 20.0 grams per denier
24、. No individual yarn tenacity value shall be less than 19 grams per denier. The warp yarns shall have a minimum nominal twist of 1.5 turns per inch. 3.2.2.2 Type II. The warp and filling yarns shall be continuous filament 1500 denier (nominal) and shall have a minimum average yarn breaking tenacity
25、of 20.0 grams per denier. No individual yarn tenacity value shall be less than 19 grams per denier. The warp yarns shall have a minimum nominal twist of 1.5 turns per inch. 3.2.2.3 Type III. The warp and filling yarns shall be continuous filament, 850 denier (nominal) and shall have a minimum averag
26、e yarn breaking tenacity of 24.0 grams per denier and a minimum average elongation to break of 3.6 percent. No individual yarn tenacity value of the yarn shall be less than 22.5 grams per denier. The yarns shall be untwisted. 3.2.2.4 Type IV. The warp and filling yarns shall be continuous filament 3
27、000 denier (nominal) and shall have a minimum average yarn breaking tenacity of 20.0 grams per denier. No Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-44050B 5 individual yarn tenacity value shall be less than 19 grams per denier. The yarn
28、s shall be untwisted. 3.2.2.5 Type V. The warp and filling yarns shall be continuous filament 600 denier (nominal) and shall have a minimum average yarn breaking tenacity of 24.0 grams per denier and a minimum elongation to break of 3.4 percent. No individual yarn breaking tenacity shall be less tha
29、n 22.5 grams per denier. The yarns shall be untwisted. 3.3 Color. The color of the cloth shall be as produced from the fiber provided by the manufacturer. No bleach or color modifier shall be used. 3.4 Physical requirements. The physical requirements for the finished cloth shall be as specified in T
30、able I when tested as specified in 4.4.3. TABLE I. Physical requirements REQUIREMENTS CHARACTERISTICS TYPE I & IA TYPE II TYPE III TYPE IV TYPE V min max min max min max min max min maxWeight (oz / yd2) 1/ 8 8.5 13.5 14.5 6.6 7.2 12.5 14.2 5.1 5.7 Yarns per inch: Warp 30 - 35 - 30 - 16 18 32 36 Fill
31、ing 30 - 35 - 30 - 16 18 32 36 Yarn Break Force (lbf) 2/ Warp 30 - 55 - 24 - 105 - 22 - Filling 30 - 55 - 24 - 110 - 24 - Water repellency (Class 2), Dynamic Absorption (% weight increase) Initial - 15% - 15% - 15% - 15% - 15%After one laundering - 15% - 15% - 15% - 15% - 15%Adhesion modified, Water
32、 repellency (Class 3), Dynamic Absorption (% weight increase) Initial - - - - 9% 15% 9% 15% 9% 15%NOTES: 1/Weight shall be determined on bone dry unfinished fabric. 2/ Test specimen shall be taken from scoured fabric for Class 1 fabrics, from finished fabric for Class 2 and Class 3 fabrics, and Grei
33、ge fabric for Class 4. 3.5 Width. The minimum acceptable width shall be as specified in the contract or purchase order (see 6.2) and shall be inclusive of the woven selvage when fly shuttle looms are used and exclusive of the lock-in selvage when shuttleless looms are used. 3.6 Weave. 3.6.1 Types I,
34、 IA, III, IV, and V. The cloth shall be woven using a plain weave. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-44050B 6 3.6.2 Type II. The cloth shall be woven using a 2 by 2 basket weave. 3.7 Finish. 3.7.1 Class 1. The cloth shall be sco
35、ured open width and dried following guidelines supplied by the fiber producer. 3.7.2 Class 2 (all types). The cloth shall be scoured (see 3.7.1) and water-repellent treated. The water-repellent treatment shall be fluorochemical based combined with a melamine extender and meet the requirements specif
36、ied in Table I, 3.8, 3.9, (see 6.4) and 3.10. 3.7.3 Class 3 (Types III, IV and V). The cloth shall be scoured (see 3.7.1) and treated with an approved emulsified fluorochemical combined with a melamine extender in order to meet the requirements specified in Table I (see 6.4) and 3.10, for a controll
37、ed maximum treatment or minimum dynamic absorption. 3.7.4 Class 4 (all types). The fabric shall be delivered directly from the loom without scouring. Any finish to include slashing shall require the fabric to be scoured and classified as Class 1 material. 3.8 Spray rating (Class 2). The results of t
38、hree individual determinations on the sample unit for spray rating shall be equal to or better than 100, 100, 90 initially and 90, 90, 80 after one laundering when tested as specified in 4.4.3. 3.9 Resistance to organic liquid (Class 2). The finished cloth shall show no wetting by n-dodecane initial
39、ly, and after one laundering when tested as specified in 4.4.3. 3.10 Ballistic resistance. 3.10.1 Ballistic limit (Type I). The ballistic limit V50for eight layers of unbonded cloth shall be not less than 1200 feet per second when tested as specified in 4.4.3, when using a 10 shot V50with a maximum
40、spread of 125 feet per second. 3.10.2 Bullet resistance (Type IA). Panels made up of eight plies of cloth shall defeat the 22 caliber, 40 grain long rifle (high velocity), lead bullets at 1050 + 50, -0 feet per second and the 38 caliber, 158 grain special round nose lead bullets at 850 + 50, -0 feet
41、 per second when tested as specified in 4.4.3. 3.10.3 Ballistic limit (Type II). The ballistic Limit V50for 12 layers of unbonded cloth shall be not less than 1550 feet per second when tested as specified in 4.4.3 when using a 10 shot V50with a maximum spread of 125 feet per second. 3.10.4 Ballistic
42、 limit (Type III). The ballistic limit V50for 10 layers of unbonded cloth shall be not less than 1250 feet per second when tested as specified in 4.4.3 when using a 10 shot V50with a maximum spread of 125 feet per second. Provided by IHSNot for ResaleNo reproduction or networking permitted without l
43、icense from IHS-,-,-MIL-DTL-44050B 7 3.10.5 Ballistic limit (Type IV). The ballistic limit V50for 10 layers of unbonded cloth shall be not less than 1300 feet per second when tested as specified in 4.4.3 when using a 10 shot V50with a maximum spread of 125 feet per second. 3.10.6 Ballistic limit (Ty
44、pe V). The ballistic limit V50for 28 layers of unbonded cloth shall be not less than 1775 feet per second when tested as specified in 4.4.3 when using a 10 shot V50with a maximum spread of 125 feet per second. 3.11 Length and put-up. For Government procurements only, unless otherwise specified in th
45、e contract or purchase order (see 6.2), the cloth shall be furnished in rolls of 80 to 120 yards each. Each roll shall contain not more than two pieces and no single piece shall be less than 40 yards in length. Each length shall be put-up in full width rolls as specified. 3.12 Fiber Identification.
46、Each roll of cloth shall be labeled and ticketed for fiber content in accordance with the Rules and Regulations under the Textile Fiber Products Identification Act. 3.13 Workmanship. The finished cloth shall conform to the quality of product established by this specification, and the occurrence of d
47、efects shall not exceed the specified quality level as specified in the contract or purchase order (see 6.2). 3.14 Toxicity. The finished cloth shall not present a health hazard and shall show compatibility with prolonged, direct skin contact when tested as specified in 4.5.7. Chemicals recognized b
48、y the Environmental Protection Agency (EPA) as human carcinogens shall not be used. 3.15 Lot Size The lot size shall be determined by the vendor and shall be specified in the contract or purchase order (see 6.2 and 6.6). 4. VERIFICATION 4.1 Classification of inspection. The inspection requirements s
49、pecified herein are classified as follows: a. First article inspection (see 4.3). b. Conformance inspection (see 4.4). 4.2 Testing facilities. Unless otherwise specified in the contract or purchase order (see 6.2), the contractor is responsible for the performance of all the requirements as specified herein
