1、 The following commercial specification is an original Parachute Industry Association specification. WEBBING, TEXTILE, POLYESTER TUBE EDGE The Parachute Industry Association makes this document available for use by Industry and Government organizations that wish to apply this specification to their
2、products. 1. SCOPE 1.1 Scope. This specification covers one type of untreated tubular edge polyester webbing used in the manufacture of load bearing systems. 1.2 Classification. The polyester tube edge webbing shall be the following type and shall conform to the requirements of TABLES I and II (see
3、6.2). Type I - 20,000 lbs. breaking strength 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 additional informat
4、ion 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. 2.2. Government publications. The follo
5、wing Government publication forms a part of this document to the extent specified herein. FEDERAL TRADE COMMISSION (FTC) 16 CFR 303 - Rules and Regulations under the Textile Fiber Products Identification Act (Copies are available online at: www.ftc.gov or from the Federal Trade Commission, 600 Penns
6、ylvania Avenue, N.W. Washington DC 20580-001 or may be obtained from www.access.gpo.gov/.) 2.3 Non-government publications. The following document(s) form a part of this document to the extent specified herein. PIA-W-1101 12 April 2015 DISTRIBUTION STATEMENT: All Rights Reserved. No Part of this pub
7、lication may be reproduced without prior written permission from Parachute Industry Association. Additional copies may be purchased on-line from PIA Specifications and Products: . Copyright Protected: Do Not Copy!PIA-W-1101 AMERICAN SOCIETY FOR QUALITY (ASQ) ANSI/ASQ Z1.4 - Sampling Procedures and T
8、ables for Inspection by Attributes (Copies are available online at: www.asq.org or from the American Society for Quality, 600 Plankinton Avenue, Milwaukee, WI 53203). ASTM INTERNATIONAL (ASTM) ASTM D276 - Standard Test Methods for Identification of Fibers in Textiles ASTM D1907 - Standard Test Metho
9、d for liner Density of yarn (Yarn Number) by the Skein Method ASTM D1423 - Standard Test Method for Twist in Yarns by Direct-Counting ASTM D1776 - Standard Practice for Conditioning and Testing Textiles ASTM D1777 - Standard Test Method for Thickness of Textile Materials ASTM D3774 - Standard Test M
10、ethod for Width of Textile Fabric ASTM D3775 - Standard Test Method for Warp (End) and Filling (Pick) Count of Woven Fabrics ASTM D3776 - Standard Test Method for Mass per Unit Area (Weight) of Fabric (Application for copies should be addressed to ASTM International, 100 Barr Harbor Drive, West Cons
11、hohocken, PA 19428-2959. Electronic copies may be obtained from www.astm.org .) AMERICAN ASSOCIATION OF TEXTILE CHEMISTS AND COLORISTS (AATCC) AATCC 20 - Fiber Analysis: Qualitative AATCC Evaluation Procedure: - 9 Visual Assessment of Color Difference Textiles (Applications for copies of referenced
12、documents should be addressed to the American Association of Textile Chemists and Colorists, PO Box 12215, Research Triangle Park, NC 27709-2215. Electronic copies may be obtained from www.aatcc.org.) PARACHUTE INDUSTRY ASSOCIATION (PIA) PIA-TEST METHOD-4108 - Strength and Elongation, Breaking; Text
13、ile Webbing, Tape and Braided Items (Electronic copies may be obtained from .) COLOR ASSOCIATION OF THE UNITED STATES (CAUS) CA # 26081 - Cable Number (Obtain color standards from or email or address to The Color Association of the United States, 315 West 39th Street, New York, NY 10018.) 2.4 Orde
14、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 Page 2 of 14 Copyright Protected: Do Not Copy!PIA-W-1101 document takes precedence. Nothing in this document, however, sup
15、ersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First Article. When specified (see 6.2), a sample representative of the production quality shall be submitted for first article inspection in accordance with 4.2. 3.2 Standard. The dyed webbing
16、 shall match the standard for shade and appearance, unless otherwise indicated, shall be equal to or better than the standard with respect to all characteristics for which the standard is referenced (see 6.1). 3.3 Recycled, Recovered, or Environmentally Preferable Materials. Recycled, recovered, or
17、environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.4 Materials. 3.4.1 Polyester Yarns. The polyester yarn used in the manu
18、facture of the webbing shall be bright, high tenacity, multifilament polyester yarn and shall comply with the denier, ply, and twist requirements specified in TABLES I and II when tested as specified in 4.4. 3.5 Weave. The weave of Type I shall be plain weave and as specified in FIGURE 2. There shal
19、l be a 1/2 inch tubular edge on edge side of the webbing, measured from the black polyester warp surface marker yarns (pattern identification yarns) located a 1/2 inch from each edge of webbing. The filling yarn shall traverse the full width of the webbing and shall be held at the edge by an extra c
20、atch- cord end interlaced with the filling yarn in accordance with the method shown in FIGURE 1. 3.6 Color. The color of the webbing and its referenced standard shall be charcoal gray and shall match the approved shade standard (see 3.2 and 6.1). 3.6.1 Dyeing. The webbing shall be pigment or piece d
21、yed. 3.6.2 Visual Shade Matching. When evaluated in accordance with 4.5.4, the color of the dyed webbing shall match the standard with sources simulating artificial daylight and shall be a good match to the standard under incandescent lamplight. 3.7 Identification Yarns. Colored warp ends shall be w
22、oven into the webbing to permanently identify the webbing by type (see 6.2 and TABLE I). 3.7.1 Type Identification. Type I - Eight minimum ends of orange identification yarns shall be woven in the center of the warp. Sixteen ends of black identification yarns, eight each edge, shall be woven on both
23、 ends, 1/2 inch from edge. The size of the marker yarns shall be similar to the natural warp yarn and shall be woven as detailed in 3.8. Page 3 of 14 Copyright Protected: Do Not Copy!PIA-W-1101 3.7.2 Shuttleless Loom Identification. The webbing shall be woven with a knit edge containing a black catc
24、h-cord yarn as shown in FIGURE 1. 3.8 Physical Requirements. The construction and physical requirements of the finished webbing shall be specified in TABLE I when tested as specified in TABLE II and 4.4. (THIS SPACE INTENTIONALLY LEFT BLANK) Page 4 of 14 Copyright Protected: Do Not Copy!PIA-W-1101 T
25、ABLE I Construction and physical properties. Properties Type I Width, inches: Full width Each edge 4 3/32 1/2 -1/32 +1/16 Thickness, inches 0.070-0.120 Weight, oz./linear yd. 6.0 -7.75 Tensile, lbs. (minimum) 20,000 Yarns: Ground (minimum) Pattern identification (minimum) Binder (minimum) Fill (pick
26、s per inch) Catch-cord Stuffer ( minimum) 352 8 center, orange 16 edge (8 each side), black 51 15 1 1 200 Ply-Denier (nominal)1/ : Ground Pattern identification Binder Fill Stuffer Catch-cord 1/2600 polyester 1/1000 orange polyester, center 1/1000 black polyester, edge 1/1000 polyester 1/1000 polyes
27、ter 1/2600 polyester 1/420 black , 6 or 6,6 nylon Twist, t.p.i. (minimum): Ground Pattern identification Binder Fill Catch-cord No twist No twist No twist No twist No twist Notes: 1/ Size stated or approximate equivalent size. Page 5 of 14 Copyright Protected: Do Not Copy!PIA-W-1101 3.10 Length and
28、Put-up. The webbing shall be put-up in rolls. Unless otherwise specified (see 6.2), the length of the rolls shall be as follows: Type I - Each roll shall contain not less than 100 yards nor more than 110 yards. A roll shall contain no more than 2 pieces and each piece shall be no less than 10 yards
29、in length. 3.11 Identification Tickets. Each roll shall have a ticket attached with not finer than 5- ply cotton string doubled to not less than 6 inches long. The tickets shall be made of paperboard not less than 0.015 inch in thickness and the color shall be manila or light in intensity to permit
30、easy reading of printed, stamped or typed markings. The use of handwritten entries is prohibited. The ticket shall have clipped corners at the end where a reinforcing patch (with or without a metal eyelet) is firmly affixed for attaching the tying string. The ticket shall be legibly printed with wat
31、er insoluble ink with the following information: Stock number Nomenclature Specification number Yardage Contract number and date of manufacture (month and year) Contractors name Name of contracting agency. When webbing is not procured directly by the Government, the above information shall appear on
32、 the container, in which case roll tickets are not required. 3.12 Fiber Identification. When directed in the procurement document or purchase order each roll of webbing shall be labeled or ticketed for fiber content in accordance with the Textile Fibers Product Identification Act. 3.13 Workmanship.
33、The webbing shall conform to the quality of product established by this specification. The occurrence of defects shall not exceed the applicable acceptable quality limits. 3.14 Figures. The FIGURES are furnished for information purposes only. When inconsistencies exist between the written specificat
34、ion and the FIGURES, the written specification shall govern. 3.15 Date of Manufacture (see 6.2). 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 goods or label on the containers identifying
35、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 material. 4. VERIFICATION Page 6 of 14 Copyright Pro
36、tected: Do Not Copy!PIA-W-1101 4.1 Classification of Inspection. The inspection requirements specified herein are as follows: 1. First article inspection (see 4.2) 2. Conformance inspection (see 4.3). 4.2 First Article Inspection. When specified, the first article submitted in accordance with 3.1 sh
37、all be inspected as specified in 4.3 through 4.3.1 for compliance 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 6.2). 4
38、.3.1 Inspection Conditions. In accordance with 4.1 above, components and materials shall be inspected in accordance with all the requirements of referenced documents unless otherwise excluded, amended, modified or qualified in this specification or applicable procurement documents. 4.3.1.1 Component
39、 Testing. In addition to the quality assurance provisions of the subsidiary specifications, component materials listed in TABLE II shall be tested for the specified characteristics in accordance with the referenced test methods. The lot size shall be expressed in pounds, and the sample unit shall be
40、 500 yards of the polyester yarn. The lot shall be unacceptable if one or more units fail to meet any requirement specified. All test reports shall contain the individual values utilized in expressing the final result. The sample size shall be as follows: Lot size (pounds) Sample size 800 or less 2
41、801 up to and including 22,000 3 22,001 and over 5 TABLE II Component tests. Characteristic Reference requirement Test method Warp, filling and binder yarn: Polyester identification Tenacity Luster Denier Ply Twist 3.4.1 ASTM D276/AATCC 20 1/ 3.4.1 1/3.4.1 Visual 1/ 3.4.1 and TABLE I ASTM D1907 1/3.
42、4.1 and TABLE I Visual 2/ 3.4.1 and TABLE I ASTM D1423 2/Identification yarns: Fiber identification Denier TABLE I 1/TABLE I ASTM D1907 1/Catch-cord yarn: Fiber identification Denier TABLE I ASTM D1907 1/ TABLE I ASTM D1907 1/ Notes: 1/ A Certificate of Compliance shall be submitted and will be acce
43、ptable for these requirements. Page 7 of 14 Copyright Protected: Do Not Copy!PIA-W-1101 2/ One determination per sample unit and the result is reported as “pass” or “fail”. 4.4 End Item Inspection. 4.4.1 Yard-by-yard examination. The webbing shall be examined on both sides for the defects listed in
44、TABLE IV. All defects found shall be counted regardless of their proximity to each other, except where two or more defects represent a single local condition, in which case only the more serious defect shall be counted. A continuous defect shall be counted as one defect for each warp-wise yard, or f
45、raction thereof, in which it occurs. The sample unit shall be one (1) yard of webbing. Acceptance sampling shall be determined using ANSI/ASQ Z1.4, Inspection Level III with an Acceptance Quality Limit (AQL) of 0.25 major defects and 1.0 for total defects (major and minor combined). The number of ro
46、lls from which the sample is to be selected shall be in accordance with TABLE III. The sample yardage shall be apportioned equally among the selected rolls. TABLE III Sampling plan. Lot size (yards) Sample size (rolls) Acceptance number Up to 1,200 3 1/0 1,201 up to and including 3,200 5 0 3,201 up
47、to and including 10,000 8 0 10,001 up to and including 35,000 13 0 35,001 up to and including 150,000 20 1 150,001 and over 32 2 Note: 1/If a lot contains fewer than three rolls, each roll in the lot shall be examined. (THIS SPACE INTENTIONALLY LEFT BLANK) Page 8 of 14 Copyright Protected: Do Not Co
48、py!PIA-W-1101 TABLE IV Webbing visual defects. Examine Defect Classification Major Minor Abrasion marks Resulting in rupture of yarns, or in nap sufficient to obscure the identity of any yarn exceeding 10 percent of width or 1 inch in length 101 Broken or missing end Two or more regardless of length
49、 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 Note: The filling tie-in or joining shall not be construed as a defect of any nature. Coarse or light filling bar Resulting in visible difference in stiffness or thickness of webbing and extending for more than 1/4 inch in the length direction 104 Resulting in visible difference in stiffness or thickness of webbing and extending for 1/4
