PIA-T-38377-1999 Tape Textile Aramid《芳纶织物线带 MIL-T-38377A(USAF)(1978年9月28日)的改称》.pdf

1、PIA-T-38377 20 May 1999 Renamed from 28 September 1978 MIL-T-38377A(USAF) The following commercial specification is adopted from the military document referenced without change to the content. Note: Although many military quality and inspection specifications, drawings and standards have been discon

2、tinued or deleted, most have been replaced by industry and commercial documents. When the specification refers to a discontinued or deleted document, you should refer to the procurement document or your contracting officer for guidance. TAPE, TEXTILE, ARAMID The Parachute Industry Association makes

3、this document available for use by Industry and Government organizations that wish to apply this specification to their products. 1. SCOPE 1.1 Scope. This specification establishes requirements for three types of aromatic polyamide tape (ribbon). 1.2 Classincation. The tape shall be of the following

4、 types, as specified (see 6.2). Type I - Breaking strength, 300 pounds. Type II - Breaking strength, 1,000 pounds. Type III -Breaking strength, 3,000 pounds. 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The following documents of the issue in effect on date of invitation for bids or request for

5、proposal form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-W-43334 Webbing and Tape, Textile, Packaging and Packing Of DISTRIBUTION STATEMENT: All rights reserved. No part of this publication may be reproduced without prior written permission from Parachut

6、e Industry Association. Purchase of this specification conveys the unconditional use of one (1) copy. Additional copies may be purchased online from the PIA Store at: filtD:/:www.piei.nrn/shcPQpinpishon0l .hlrn, or by contacting PIA Headquarters, Specification Department, 3833 West Oakton Street, Sk

7、okie, IL 60076. Phone: 847-674-9742 Fax: 847-674-9743 1 of 11 PIA-T-38377 STANDARDS FEDERAL FED-STD-191 MILITARY MIL-STD-105 Textile Test Methods Sampling Procedures and Tables for Inspection by Attributes (Copies of specifications and standards required by contractors in connection with specific pr

8、ocurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bi

9、ds or request for proposal shall apply. FEDERAL TRADE COMMISSION Textile Fiber Products Identification Act, Effective 3 March 1960 (Application for copies should be addressed to the Federal Trade Commission, Washington, D.C. 20580.) 3. REQUIREMENTS 3.1 Yarn. The yarn shall be a nonmelting, aromatic

10、polyamide. The yarn shall not begin to char at a temperature below 6750F when tested as specified in Table I. 3.2 Weave. 3.2.1 Bodv. The body weave shall be a conventional 2-up and 2-down right-hand twill. 3.2.2 Selvage. Unless otherwise specified, the selvage weave for Type I shall be a double plai

11、n weave of a conventional hatband type. Types II and III shall have no additional selvage ends. 3.3 Color. The tape shall be Olive Green, 3.4 Construction and phvsical properties. The tape shall conform to the properties specified in Table II. 2 of 11 PIA-T-38377 Component Table I. Testing. of compo

12、nent. Requirement Test method of Characteristic reference Fed Std 191 or test reference Yarn Denier Table 11 4021 u Ply Table II Visual 21 Twist Table 11 4054 I Carbonization I 3.1 I 153431 - 11 Denier shall be calculated as follows, and shall be reported to the nearest whole number: Denier = Weight

13、 of specimen in grams X 9842.5 Length of specimen in yards - 21 One determination per sample unit and results reported as pass or fail. - 31 Tinppliers certificate of compliance showing that the yarn identified in 6.3 was used may be submitted in lieu of test method. 3.5 Width. The width of the tape

14、 shall be 2 50.0625 inches 3.6 Length and put-up. Unless otherwise specified, tape shall be put up on spools of 120 yards minimum and 150 yards maximum length. No spool shall contain more than three lengths, and no length shall be less than 40 yards (see 6.2). 3.7 Identification of product. Each spo

15、ol shall have a ticket (identification tag) attached with not finer than Apply cotton string doubled to not less than 6 inches. The ticket shall be made of paperboard not less than 0.020 inch in thickness and the color shall be manila or light in intensity to permit easy reading of printed, stamped,

16、 or typed markings. Handwritten entrees shall be prohibited. The ticket shall have clipped comers at the end where a reinforcing patch (with or without a metal eyelet) is fmly affixed for attaching the tying strings. The ticket shall be legibly marked with water-insoluble ink with the following info

17、rmation: a. b. d. e. f. 5 h. C. 1. Nomenclature Number and date of this specification Type Yardage Manufacturers identification number Contract number; name of contractor Stock number Date of manufacturer (month and year) Name of manufacturer (if not the same as contractor) 3 of 11 PIA-T-38377 Table

18、 II. Construction and phvsical requirements. Reauirement Weight (yds/ibs) min Breaking strength, lb: Unaged (min) Aged (% of unaged) (min) Elongation, % (min) Ends, min: Total Selvage Warp yarns, denier and ply Turns per inch, single Turns per inch, ply Filling picks per inch, min Filling yarn, deni

19、er and ply Turns per inch, single Turns per inch, ply Air permeability (ft 3 /min/ft 2 Type 1 1 O0 300 85 12.0 150 16 200/1 6.5-8.5 70 100/1 6.5-8.5 75+20 Type II 30 1,000 35 12.0 480 200/1 4.0-6.0 34 200/2 2.0-4.0 Type III 12 3,000 85 358 200/4 2.5-3.5 24 200/4 2.5-3.5 3.8 Fiber identification. Eac

20、h spool of tape shall be labeled, ticketed, or invoiced for fiber content in accordance with the Textile Fiber Products Identification Act, effective 3 March 1960. 4 of 11 PIA-T-38377 3.9 Workmanship. The finished tape shall be clean, evenly woven, and shall conform to the quality and grade of produ

21、ct established by this specification. The occurrence of defects shall not exceed the levels set by the applicable acceptable quality levels. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibilitv for inspection. Unless otherwise specified in the contract, the contractor is responsible for the performanc

22、e of all inspection requirements as specified herein. Except as otherwise specified in the contract, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the

23、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. 4.2 Oualitv conformance inspection. Except where otherwise specified, inspection shall be in accordance with MIL-STD-

24、 105. 4.2.1 Inspection of component. The component listed Table II shall be tested for the characteristics specified in accordance with the referenced test methods. The sample unit shall be one cone, tube, or spool and the lot size shall be expressed in units of one cone, tube, or spool each. The sa

25、mple size shall be in accordance with inspection level S-1 of MIL-STD-105 and the acceptable quality level for each characteristic shall be 4.0 test failures per 100 units. 4.2.2 Examination of the end item. Defects found during the examination shall be classified in accordance with 4.2.2.1,4.2.2.2,

26、 and 4.2.2.3. 4.2.2.1 Yard-bv-vard examination. The required yardage of each spool shall be inspected 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 condit

27、ion of the tape, in which case only the more serious defect shall be counted. A continuous defect shall be counted as one defect for each warpwise yard, or fraction thereof, in which it occurs. The sample unit for this examination shall be 1 linear yard. The sample size shall be in accordance with i

28、nspection level III of MIL-STD-105. The acceptable quality level shall be 0.40 major defects and 1.50 total defects per 100 units (yards). The lot size shall be expressed in units of 1 linear yard each. An approximate equal number of yards shall be examined from each spool selected. The number of sp

29、ools from which the sample is to be selected shall be in accordance with Table IV of this specification. 5 of 11 PIA-T-38377 Defect Abrasion marks TABLE III. Classification of defects. Description Resulting in rupture of yarns or in nap sufficient Cut, hole, or tear Drop-ply Hrokcii or inissiiip cii

30、d Any cut, hole, or tear Clearly noticeable, or more than 2 ends within same length and extending over 9 linear Broken or missing pick Coarse or light filling bar Edges Fine or light filling bar, Floats or skips light place Hitchback crack Jerked-in filling, Kinks Knots slough-off, Slug. Mispick, do

31、uble pick percent of width or I inch in length Two or more regardless of length or a single end exceeding 6 inches in length. Single end under 6 inches but exceeding 1/4 inch Two or more regardless of extent Resulting in noticeable difference in stiffness or thickness of tape and extending for more

32、than 1/4 inch in the lennth direction length and extending over 9 linear inches or Frayed, slack or otherwise poorly constructed and exceeding 1/4 inch in length Clearly noticeable Multiple, 1/2 inch or more in combined warp and Single float or skip over 1 inch Multiple. less than 1/2 inch in combin

33、ed warp Single float or skip over 1/2 inch but not exceeding I inch If in the warp Single float or skip over 1/4 inch but not exceeding 1 Inch if In the filling Clearly noticeable opening between adjoining picks, or warpwise tension area over part of the width resulting in noticeable light or heavy

34、places More than twice the thickness of the normal yarn More than 3 in any 9 linear inches More than 2 knots in any 9 linear inches Single knot with untrimmed ends extending more than 1/16 inch from surface of tape Two or more across the full width Single across the full width more filling direction

35、s and filling directions Resulting in noticeable difference in stiffness or thickness of tape and extending for 1/4 inch . . . . . I inches or more I Clearly noticeable, on I or 2 ends within same Major Minor -r X Ix Ix Ix Ix Ix Ix xtx 6 of 11 PIA-T-38377 Slack end Slub (slug), or gout Smash Spot, s

36、tain, or streak Tight end Tight pick or tight filling Twist or distortion Weak, soft, or tender TABLE III - Classification of defects (Continued) (Major) (Minor Two or more in the same length, jerked in between picks, or forming clearly noticeable loops on the surface of tape plied 1 X More than twi

37、ce the thickness of the yarn (or ply, if Any smash x Any clearly noticeable dirt, rust, grease, oil spot, Clearly noticeable x Resulting in rolling of tape Twisted or distorted. Will not lay flat upon Any weak, soft, or tender spot x x stain or streak x x application of manual pressure x spot Width

38、Wrong draw LThe term clearly noticeable shall be interrupted to Beyond specified tolerances x Extending for more than 9 inches x (approximately 3 feet). Ta Lot size in yards up to 1,200 U/) 1,201 to 3,200 3,201 to 10,000 10,001 to 35,000 35,001 to 150,000. 150.001 and over )le IV. Sample ! Sample si

39、ze in spools 5 7 10 15 25 35 mean visible normal inspection distance ze. Maximum number of defects acceptable in sample O O O O 1 1 - 1/ If a lot contains fewer than 5 spools, each spool in the lot shall be examined. 4.2.2.2 Overall examination. Each defect listed herein shall be counted no more tha

40、n one in each spool examined. The sample unit for this examination shall be one spool. The sample size and acceptance number shall be as shown in Table IV. The lot size shall be expressed in units of 1 linear yard each. Defects Objectionable odor. Overall uncleanness. Uneven weaving throughout. 7 of

41、 11 PIA-T-38377 Examination Marking (exterior and interior). Materials Workmans hip Weight 4.2.2.3 Examination for length. Defect Omitted, incorrect, illegible, of improper size, location, sequence or method of application Any component missing or damaged. Inadequate application of components, such

42、as: incomplete closure of case liners, container flaps, loose strapping, inadequate stapling. Bulging or distortion of containers Net weight exceeds requirements 4.2.2.3.1 Individual spool. Each spool in the sample shall be examined for the defects listed herein. The sample unit for this examination

43、 shall be one spool. The sample size and acceptance number shall be as shown in Table IV. The lot size shall be expressed in units of 1 linear yard each. Defects Gross length less than specified minimum length or more than specified maximum length. Gross length more than 2 yards less than gross leng

44、th marked on spool ticket. Any length less than the allowable minimum. Any spool containing more than the allowable number of lengths. 4.2.2.3.2 Total vardage. The lot shall be unacceptable if the total of the actual gross lengths of spools in the sample is less than the total of the gross lengths m

45、arked on spool tickets. 4.2.3 Examination for compliance with Textile Fiber Products Identification Act. During the examination of individual spool for length, each spool in the sample shall be examined for conformance to the Textile Fiber Products Identification Act. Each spool not labeled in accor

46、dance with this act shall be a defect. The lot shall be unacceptable if two or more of these defects occur. 4.2.4 Examination of preparation for deliverv requirements. An examination shall be made to determine that packaging, packing, and marking requirements comply with section 5 of this specificat

47、ion. Defects shall be scored in accordance with the list herein. The sample unit shall be one shipping container fully prepared for delivery with the exception that it need not be sealed. Defects of closure listed herein shall be examined on shipping containers fully prepared for delivery. The lot s

48、ize shall be the number of shipping containers in the end item inspection lot. The inspection level shall be S-2 and the acceptable quality level shall be 4.0 defects per 100 units. 8 of 11 PIA-T-38377 4.3 Testing of the end item. The methods of testing specified in FED STD-191, wherever applicable,

49、 and as listed in Table V shall be followed The physical and chemical values specified in section 3 apply to the average of the determinations made on a sample unit for test purposes as specified in the applicable test methods. The sample size shall be as follows: Lot size (yards) Sample size 800 or less . 2 801 to 10,000 3 10,OO 1 and over .5 The lot shall be unacceptable if one or more units fail to meet any requirement specified. The lot size shall be expressed in units of 1 linear yard. The sample unit for testing shall be 10 yards. 4.3.1 Breaking strength and elongation (unaged). The