1、 The following commercial specification is adopted from the military document. Revision A includes all known accepted revisions, amendments, notices, and Department of Defense (DoD) engineering changes previously developed for this item. Revision B and forward include changes adopted to reflect tech
2、nology and design evolution. TAPE, TEXTILE, NYLON, AROMATIC, NONMELTING, REINFORCING 1. SCOPE 1.1 Scope. This specification establishes requirements for nine types of aromatic polyamide reinforcing tape. 1.2 Classification. The tape shall be of the following types specified (see 6.1): Type I - Unage
3、d breaking strength of 400 lbs. Type II - Unaged breaking strength of 500 lbs. Type III - Unaged breaking strength of 1,000 lbs. Type IV - Unaged breaking strength of 1,500 lbs. Type V - Unaged breaking strength of 525 lbs. Type VI - Unaged breaking strength of 350 lbs. Type VII - Unaged breaking st
4、rength of 1,500 lbs. Type VIII - Unaged breaking strength of 2,000 lbs. Type IX - Unaged breaking strength of 3,000 lbs. 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
5、 other sections of this specification or recommended for additional 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 specificat
6、ion, whether or not they are listed. 2.2 Government publications. 2.2.1 Government publications. The following Government publication forms a part of this document. PIA-T-38328B 21 May 2012 Superseding PIA-T-38328A 28 September 2010 DISTRIBUTION STATEMENT: All Rights Reserved. No Part of this public
7、ation may be reproduced without prior written permission from Parachute Industry Association. Additional copies may be purchased on-line from PIA Specifications and Products at: . PIA-T-38328B Page 2 of 11 FEDERAL TRADE COMMISSION (FTC) 16 CFR 303 - Rules and Regulations Under the Textile Fiber Prod
8、ucts Identification Act (Copies are available online at: www.ftc.gov or from the Federal Trade Commission, 600 Pennsylvania Avenue, N.W. Washington, DC 20580-0001. Electronic copies may also be obtained from www.access.gpo.gov/.) 2.3 Non-government publications. The following documents form a part o
9、f this document. AMERICAN SOCIETY FOR QUALITY (ASQ) ANSI/ASQ Z1.4 - Sampling Procedures and Tables for Inspection by Attributes (Copies are available online at: www.asq.org or from the American Society for Quality, 600 North Plankinton Avenue, Milwaukee, WI 53206. Electronic copies may also be obtai
10、ned from www.access.gpo.gov/ .) ASTM INTERNATIONAL (ASTM) ASTM D 276 - Standard Test Methods for Identification of Fibers in Textiles ASTM D 1059 - Standard Test Method for Yarn Number Based on Short- Length Specimens ASTM D 1423 - Standard Test Method for Twist in Yarns by Direct- Counting ASTM D 1
11、776 - Standard Practice for Conditioning and Testing Textiles ASTM D 1777 - Standard Test Method for Thickness of Textile Materials ASTM D 1907 - Standard Test Method for Linear Density of Yarn (Yarn Number) by Skein Method ASTM D 3774 - Standard Test Method for Width of Textile Fabric ASTM D 3775 -
12、 Standard Test Method for Warp (End) and Filling (Pick) Count of Woven Fabrics ASTM D 3776 - Standard Test Method for Mass Per Unit Area (Weight) of Woven Fabric (Application for copies should be addressed to the ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. Electronic
13、 copies may be obtained from www.astm.org.) PARACHUTE INDUSTRY ASSOCIATION (PIA) PIA-TEST METHOD-4108 - STRENGTH AND ELONGATION, BREAKING; TEXTILE WEBBING, TAPE AND BRAIDED ITEMS PIA-T-38328B Page 3 of 11 (Electronic copies may be obtained from .) 2.4 Order of precedence. Unless otherwise noted here
14、in 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 shall take precedence. Nothing in this document, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. R
15、EQUIREMENTS 3.1 First article. When specified (see 6.1), a sample representative of the production quality shall be submitted for first article inspection in accordance with 4.2. 3.2 Material. 3.2.1 Yarn. The yarn shall be a nonmelting, aromatic, polyamide. The yarn shall not begin to char at a temp
16、erature less than 675F when tested as specified in 4.2.1. 3.3 Weave. 3.3.1Types I and V. The weave of Types I and V shall be plain (1-up and 1-down). 3.3.2 Types II and VII. The weave of Types II and VII shall be 2-up and 2-down herringbone twill with one reversal in the center. 3.3.3 Types III and
17、IV. The weave of Types III and IV shall be composed of 2 ground warps (face and back), 1 binder warp, and 1 filling. The face warp shall weave plain with the picks that show on the face and the back warp shall weave plain, with the picks that show on the back. The binder warp shall weave plain throu
18、ghout. 3.3.4 Type VI. The weave of Type VI shall be as shown in FIGURE 1. 3.3.5 Types VIII and IX. The weave of Types VIII and IX shall be 2 up and 2 down right hand twill. (THIS SPACE LEFT INTENTIONALLY BLANK) PIA-T-38328B Page 4 of 11 TABLE I Physical properties. Requirement Type I Type II Type II
19、I Type IV Type V Type VI Type VII Type VIII Type IX Thickness, inch (maximum) 0.025 0.030 0.040 0.040 0.025 0.037 0.040 0.040 0.045 Width, inches 3/4 1/32 9/16 1/32 1 1/32 1-1/2 1/32 1 1/32 5/16 1/32 2 1/16 2 1/16 2 1/16 Weight, oz./yd. (maximum) 0.25 0.25 0.50 0.75 0.30 0.20 0.95 1.00 1.06 Breaking
20、 strength lbs.: Unaged (minimum) Aged (percent of unaged) (minimum) 400 85 500 85 1,000 85 1,500 85 525 85 350 85 1,500 85 2,000 85 3,000 85 Elongation, percent (minimum) 18 12 15 18 15 - - - - Warp yarns: Face & back (minimum) 210 60 241 363 276 138 (2 as 1) 376 512 260 Denier and ply 200/1 200/4 2
21、00/2 200/2 200/1 200/1 200/2 200/2 1200/1 Twist (minimum): Ply Singles - 5.0 2.5 - 2.5 - 2.5 - 2.5 - - 5.0 2.5 - 2.5 - - 2.5 Binder yarn (minimum) - - 18 26 - 16 - - - Denier and ply - - 200/2 200/2 - 200/1 - - - Twist(minimum): Ply Singles - - 2.5 2.5 - - - - - - - - - 3.0 3.0 - - - Stuffer (minimu
22、m) - - - - - 28 (4 as 1) - - - Denier and ply - - - - - 200/1 - - - Twist (minimum) - - - - - - - - - Singles - - - - - 3.0 - - - Filling yarns: Denier and ply 200/2 200/2 06604 200/2 200/2 200/1 200/4 200/2 200/2 Twist (minimum): Ply Singles 2.5 - 2.5 - 2.5 - 2.5 - 2.5 - - 2.0 2.5 - 2.5 - 2.5 - Pic
23、ks per inch (minimum) 27 32 44 44 27 68 (2 as 1) 32 35 24 3.4 Color. Unless otherwise specified (see 6.1), the color of the tape shall be as specified in the procurement document. The color shall be obtained by the use of melt spun solution dyed yarn. PIA-T-38328B Page 5 of 11 3.4.1 Visual shade mat
24、ching. When evaluated in accordance with 4.7.2, the color of the finished tape shall match the standard with sources simulating artificial daylight and shall be a good match to the standard under incandescent lamplight. 3.5 Construction and physical requirements. The physical requirements of the tap
25、e shall be as specified in TABLE I, when tested as specified in 4.3 3.6 Length and put-up. Unless otherwise specified, tape shall be put up on rolls not less than 90 or more than 110 yards. Each roll shall contain not more than 3 pieces, and no piece shall be less than 10 yards in length. 3.7 Fiber
26、identification. Each roll of tape shall be labeled, ticketed, or invoiced for fiber content in accordance with the Textile Fiber Products Identification Act. 3.8 Workmanship. The tape shall be clean, evenly woven, and shall conform to the quality and grade of product established by this specificatio
27、n. The occurrence of defects shall not exceed the applicable acceptable quality levels specified herein. 3.9 Date of manufacturer (see 6.1). When required by the procurement document, the textile manufacturer shall properly identify the age of the textile materials by placing a tag on the finished g
28、oods, or label on the containers, identifying the specification to which the material is manufactured, the lot number and the date of manufacture. The date of manufacture is defined as the date (month and year) of the last manufacturing process that affects the physical characteristics of the materi
29、al. 4. VERIFICATION 4.1 Classification for inspection. The inspection of the tape shall be classified as follows: a. First article inspection b. Conformance inspection. 4.2 First article inspection. The first article submitted in accordance with 3.1 shall be inspected as specified in 4.3 for complia
30、nce with design, construction, workmanship and dimensional requirements. 4.3 Conformance inspection. Sampling for inspection shall be performed as specified in this document unless otherwise specified in the contract or order (see 6.1). 4.4 Responsibility for inspection. Unless otherwise specified i
31、n the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the supplier may use his own or any other facilities suitable for the performance of all inspection r
32、equirements as specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. PIA-T-38328B Page
33、6 of 11 4.5 Component testing. The component listed in TABLE II shall be tested for the characteristics specified in accordance with the referenced test methods, except where otherwise specified. The sample unit shall be one cone, tube, or spool and the lot size shall be expressed in units of one co
34、ne, tube, or spool each. Acceptance sampling plan shall be determined by using ANSI/ASQ Z1.4, Inspection Level S-1 with an Acceptance Quality Limit (AQL) of 4.0. 4.5.1 Certificates of Compliance. When Certificates of Compliance are submitted, the procuring activity reserves the right to inspect such
35、 items to determine the validity of the certification. TABLE II Testing of component. Component Characteristic Requirement reference Test method or test reference Yarn Denier Ply Twist Carbonization TABLE I 1/ TABLE I 1/ TABLE I 1/3.1 ASTM D 1059 Visual ASTM D 1423 2/ASTM D 276 Notes 1/ One determin
36、ation per sample unit and results reported as pass or fail. 2/The suppliers Certificate of Compliance showing that the yarn identified in 6.2 was used may be submitted in lieu of test method. 4.6 End item inspection. 4.6.1 Yard-by-yard examination. The required yardage of each roll shall be inspecte
37、d and visual defects classified as listed in TABLE III. The defects found shall be counted regardless of their proximity to each other, except where two or more defects represent a single local condition of the tape, in which case only the more serious defect shall be counted. A continuous defect sh
38、all be counted as one defect for each warp-wise yard, or fraction thereof, in which it occurs. The unit of product for this examination shall be 1 linear yard. Acceptance sampling shall be determined by using ANSI/ASQ Z1.4, Inspection Level II with an Acceptance Quality Limit (AQL) of 0.40 major def
39、ects and 1.5 for total defects (major and minor combined). The lot size shall be expressed in units of 1 linear yard each. An approximate equal number of yards shall be examined from each roll selected. The number of rolls from which the sample is to be selected shall be in accordance with TABLE IV
40、of this specification. (THIS SPACE LEFT INTENTIONALLY BLANK) PIA-T-38328B Page 7 of 11 TABLE III Classification of defects. Defect Description Major Minor Abrasion marks Resulting in rupture of yarns or in nap sufficient to obscure the identity of any yarns exceeding 10 percent of width or 1 inch in
41、 length 101 Broken or missing end Two or more regardless of length or a single end exceeding 6 inches in length 102 Single end under 6 inches but exceeding 1/4 inch 201 Broken or missing pick Two or more regardless of extent 103 One or single 202 Coarse or light filling bar Resulting in clearly noti
42、ceable difference in stiffness or thickness of tape and extending for more than 1/4 inch in the length direction 104 Resulting in clearly noticeable difference in stiffness or thickness of tape and extending for 1/4 inch or less in the length direction 203 Cut, hole, or tear Any cut, hole or tear 10
43、5 Drop-ply Clearly noticeable, on more than 2 ends within same length and extending over 9 linear inches or more 106 Clearly noticeable, on 1 or 2 ends within same 9 linear inches or more 204 Edges Frayed, slack, or otherwise poorly constructed and exceeding 1/4 inch in length 107 Fine or light fill
44、ing bar, light place Clearly noticeable 108 Floats or skips Multiple, 1/2 inch or more in warp and filling directions 109 Single float or skip over 1 inch 110 Multiple, less 1/2 inch in combined warp and filling directions 205 Single float or skip over 1/2 inch if in the warp 206 Single float or ski
45、p over 1/4 inch but not exceeding 1 inch if in the filling 207 Hitchback crack Clearly noticeable opening between adjoining picks, or warpwise tension area over part of the width resulting in noticeable light and heavy places 208 Jerked-in filling, slough-off, slug More than twice the thickness of t
46、he normal yarn 209 Kinks More than 3 in any 9 linear inches 111 Knots More than 2 knots in any 9 linear inches 112 Single knot with untrimmed ends extending more than 1/16 inch from the surface of tape 113 Mispick, double pick Two or more across the full width 114 Single knot with untrimmed ends ext
47、ending more than 1/16 inch from surface of tape 210 PIA-T-38328B Page 8 of 11 TABLE III Classification of defects (contd). Defect Description Major Minor Slack end Two or more in the same length, jerked in between picks, or forming clearly noticeable loops on the surface of tape 115 Single jerked in
48、 between picks, or forming clearly noticeable loops on surface of tape 211 Slub (slug), or gout More than twice the thickness of the yarn (or ply, if plied) 212 Smash Any smash 116 Spot, stain, or streak Any clearly noticeable dirt, rust, grease, oil spot, stain, or streak 213 Tight end Clearly noti
49、ceable 1/117 Tight pick or tight filling Resulting in rolling of tape 118 Twist or distortion Twisted or distorted Will not lay flat upon application of manual pressure 214 Weak, soft, or tender spot Any weak, soft, or tender spot 119 Width Beyond specified tolerance 215 Wrong draw Extending for more than 9 inches 216 Note: 1/The term clearly noticeable shall be interp
