1、 AEROSPACE MATERIAL SPECIFICATION (R) Cloth, Aramid Basket and Plain Weave SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitabilit
2、y for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright
3、2005 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER:
4、Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: custsvcsae.org SAE WEB ADDRESS: http:/www.sae.org AMS 3907AIssued OCT 1985 Revised OCT 1994 Reaffirmed JUN 2005 Superseding AMS 3907 1. SCOPE:1.1 Form:This specification covers aramid fibers in the for
5、m of woven cloth.1.2 Application:This cloth has been used typically in fabricating special flight, shipboard,and ground combat clothing, but usage is not limited to such applications.1.3 Classification:Cloth shall be aramid blends of the following types and classes:Class 1: 2 x 2 basket weave with a
6、 minimum weight of 5.0 ounces per squareyard (170 g/m2)Class 2: Plain weave with a minimum weight of 4.3 ounces per square yard(146 g/m2)Type 5:Type 6: ColoredWoodland camouflage printedType 7: Desert camouflage printed (3 color)2. APPLICABLE DOCUMENTS:The following documents form a part of this spe
7、cification to the extentspecified herein. The applicable issue of referenced publications shall bethe issue in effect on the date of the purchase order.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,
8、-SAE - 2 - AMS 3907A AMS 3907A2.1 ASTM Publications:Available from ASTM, 1916 Race Street, Philadelphia, PA 19103-1187.ASTM D 1424 Tear Resistance of Woven Fabrics by Falling-Pendulum (Elmendorf)ApparatusASTM D 5034 Breaking Force and Elongation of Textile Fabrics (Grab Test)2.2 U.S. Government Publ
9、ications:Available from DODSSP, Subscription Services Desk, Building 4D, 700 RobbinsAvenue, Philadelphia, PA 19111-5094.V-T-285 Thread, PolyesterPPP-P-1133 Packaging and Packing of Synthetic Fiber FabricsFED-STD-4 Glossary of Fabric ImperfectionsFED-STD-191 Textile Test MethodsDPSC Handbook 4120.1 L
10、ist of Armed Service Colors for Clothing, Textiles andEquipment2.2.1 Available from Federal Trade Commission, Washington, DC 20580.Textile Fiber Products Identification Act, Rules and Regulations2.3 Other Publications:Available from American Association of Textile Chemists and Colorists,P.O. Box 122
11、15, Research Triangle Park, NC 27709.Technical Manual of the AATCC3. TECHNICAL REQUIREMENTS:3.1 Material:The blend usedmaterials shownaccordance within construction of the cloth shall be the three fiberin Table 1 and the following, determined on the material intest methods of FED-STD-191, as specifi
12、ed in Table 1.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE - 3 - AMS 3907A AMS 3907ATABLE 1 - MaterialParagraph Property3.1.1 Composition, nominal3.1.1.1 Meta-aramid Fiber3.1.1.2 Para-aramid F
13、iber3.1.1.3 Conductive Fiber3.1.2 Denier3.1.3 Staple LengthRequirement Test Method92% A5% A3% A,B1.5 to 1.7 per filament A1 l/2 to 2 inches A(38.1 to 51 mm)3.1.4 Char Temperature, min 357 C (675 F), min5903A Unless otherwise specified, a certificate of compliance will be accepted for statedrequireme
14、nts.B The conductive fiber shall be a sheathed carbon core fiber and shall be 3 denier per filament,and 1 l/2 to 2 inches (38.1 to 51 mm) in staple length.3.2 Properties:Cloth shall conform to requirements specified in Table 2 and the following,determined on the cloth supplied in accordance with tes
15、t methods ofFED-STD-191 and 4.5, except as specified in 3.2.5. Yarn shall be spun intosingle ply for Class 1 and 2 ply for Class 2 for both the warp and filling.Paragraph Property3.2.1 WeaveClass 1Class 23.2.2 WeightClass 1, minClass 2TABLE 2 - PropertiesRequirement Test MethodVisualBasketPlain50415
16、.0 ounces per square yard (170 g/m2)Types 5 and 7 4.7 to 6.0 ounces(160 to 204 g/m2)per square yardType 6 4.3 to 5.0 ounces per square yard(146 to 170 g/m)Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-
17、,-,-SAE - 4 - AMS 3907A AMS 3907ATABLE 2 - (Continued)Paragraph Property3.2.3 Yarn Count, minWarpClass 1Class 2Requirement90 per inch (25 mm)Test Method5050Types 5 and 7 69 per inch (25 mm)Type 6 70 per inch (25 mm)FillingClass 1Class 288 per inch (25 mm)Types 5 and 7Type 63.2.4 Breaking Strength, m
18、inClass 1 (Ravel strip)44 per inch (25 mm)47 per inch (25 mm)WarpFilling100 pounds force (445 N)100 pounds force (445 N)Class 2 (Grab)51045100 orASTM D 5034WarpFilling180 pounds force (801 N)100 pounds force (445 N)3.2.5 Tearing Strength, minWarpClass 1Class 215 pounds force (67 N)Types 5 and 7 8 po
19、unds force (36 N)Type 6 12 pounds force (53 N)FillingClass 1Class 215 pounds force (67 N)Types 5 and 7 5 pounds force (22 N)Type 612 pounds force (53 N)3.2.6 Air Permeability at l/2 Inch(12.7 mn) Water PressureClass 1, min 100 ft3/minute/ft2(30.4 m3/minute/m2)Class 2 85 to 160 ft3/minute/ft2(25.8 to
20、 48.6 m3/minute/m2)ASTM D 14245450Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE - 5 - AMS 3907A AMS 3907ATABLE 2 - (Continued)Paragraph Property3.2.7 Flame Resistance, maxFinished and after Fiv
21、eLaunderingsRequirement Test Method5903Flaming 2.0 seconds AGlow Time 25.0 seconds AAverage Char Length 4.0 inches (102 mm) A3.2.8 Electrostatic DecayFinished and after FiveLaunderings90% min decay in l/2 secondmax when charged toward +5000 and-5000 volts reaching a min level of+4000 and -4000 volts
22、5931 B and 55563.2.9 pH of Water Extract ofFinished Cloth3.2.10 Dimensional Stability,Shrinkage, max5.0 to 8.03.2.10.1 Classes 1 and 2,Type 6 after15 LaunderingsWarp DirectionFilling Direction3.2.10.2 Class 2, Types 5 and 7after 5 Launderings4.0%1 .5%Warp and Filling DirectionIndividual Specimen 3.5
23、%Average of Specimens 3.0%28115556 B3.2.11 Seam Efficiency, minA Types 5 and 7 must also meet requirements after five launderings.B Cotton laundering procedures.C The needle shall measure 0.044 inch (1.12 mn) across the blade at the eye. The thread for theneedle shall conform to V-T-285, Size E, Typ
24、e I, Class 1, Sub-class A or B, and the thread for thelooper shall conform to V-T-285, Size B, Type I, Class 1, Sub-class A or B.3.2.12 Color: The color of each cloth shall be obtained by the use of dry spunsolution dyed fiber and shall be as shown below. Color designations arein accordance with DPS
25、C Handbook 4120.1.3.2.12.1 Classes 1 and 2, Type 6: The color of the finished cloth shall be asspecified and shall match the standard sample. The color shall beobtained by the use of producer colored fiber including sage green 1590,olive green 106, navy blue 3374, royal blue 3375, and tan 380.Copyri
26、ght SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE - 6 - AMS 3907A AMS 3907A3.2.12.2 Class 2, Type 5: The cloth shall be colored to a ground shade eithermatching or approximating light green 354, and subs
27、equently overprintedwith the applicable camouflage colors. When the ground shape is coloredto match the light green 354, the woodland camouflage pattern shall beobtained by roller or automatic screen printing using three rollers orscreens, as appropriate for the dark green 355, brown 356, and black
28、357areas of the pattern. If the ground shade is colored to approximatelight green 354, four rollers or screens shall be used to match therequired pattern. Resin bonded pigments are not permitted.3.2.12.3 Class 2, Type 7: The cloth shall be colored to a ground shade eithermatching or approximating li
29、ght tan 492 and subsequently overprintedwith the applicable desert camouflage colors. When the ground shade iscolored to match the light tan 492, the desert camouflage pattern shallbe obtained by roller or automatic screen printing using two rollers orscreens as appropriate for the light brown 493 a
30、nd light khaki 494 areasof the pattern. If the ground shade is colored to approximate the lighttan 492, three rollers or screens shall be used to match the requiredpattern. Resin bonded pigments are not permitted.3.2.12.4 Matching: The color of the finished cloth shall match the standardsample under
31、 artificial daylight having a correlated color temperatureof 7000 K 500 (13,000 F 900) and shall be a good approximation tothe standard sample under incandescent lamplight at 2800 K 100(5400 F 180).3.2.12.5 Colorfastness: The dyed and finished cloth shall show colorfastness tolight and to laundering
32、 equal to or better than the standard sample.3.2.13 Width: Shall be not less than 45 inches (1143 mm) inclusive of theselvages. When the cloth has shuttleless loom selvages. the width of thecloth should be as specified and shall not be less than the wiwoven cloth, excluding the selvages.3.2.14 Nonfi
33、brous Material: Prior to application of an antistatic fcloth shall contain not more than 1.0% starch and protein incchloroform-soluble and water-soluble materials, determined inwith FED-STD-191, Method 2611.dth of thenish, theuding theaccordance3.2.15 Finishing: Cloth shall be desized, scoured, and
34、heat set to meet therequirements of Table 2.3.2.16 Curling: The finished cloth shall lie flat, without distortion, and showno evidence of curling, determined in accordance with 4.5.1.3.3 Quality:Cloth, as received by purchaser, shall be evenly woven, and free from foreignmaterials and from imperfect
35、ions detrimental to usage of the cloth.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE - 7 - AMS 3907A AMS 3907A3.3.1 Fabric Imperfections: Acceptability of each lot of cloth shall be based onimp
36、erfections as defined in FED-STD-4. The cloth shall not contain morethan an average of 50 demerit points per 100 square yards (84 m2) whenexamined and scored in accordance with 4.5.2.4. QUALITY ASSURANCE PROVISIONS:4.1 Responsibility for Inspection:The manufacturer of cloth shall supply all samples
37、for required tests andshall be responsible for all required tests. Purchaser reserves the right tosample and to perform any confirmatory testing deemed necessary to ensurethat the cloth conforms to the requirements of this specification.4.2 Classification of Tests:4.2.1 Acceptance Tests: Breaking st
38、rength (3.2.4), tearing strength (3.2.5), airpermeability (3.2.6), flame resistance (3.2.7), and quality (3.3) areacceptance tests and shall be performed on each lot.4.2.2 Preproduction Tests: All technical requirements are preproduction testsand shall be performed prior to or on the initial shipmen
39、t of cloth to apurchaser, when a change in ingredients and/or processing requiresreapproval as in 4.4.2, and when purchaser deems confirmatory testing to berequired.4.3 Sampling and Testing:(R)Shall be as follows:4.3.1 For Acceptance Tests: Sufficient cloth shall be taken at random from eachlot to p
40、erform all required tests. The number of determinations for eachrequirement shall be as specified in the applicable test procedure or, ifnot specified therein, not less than three.4.3.1.1 A lot shall be all cloth produced in a single production run under thesame fixed conditions and presented for ma
41、nufacturers inspection at onetime.4.3.1.2 The sample unit shall be 5 continuous yards (4.6 m), full width of thefinished cloth. Lot size shall be expressed in units of 1 yard (0.9 m).The lot shall be unacceptable if one or more sample units fail to meetany specified requirement. Sample size shall be
42、 as shown in Table 3.TABLE 3 - Sample Size for Acceptance TestsLot Size Lot Size SampleYards Meters Sizeup to 800, incl up to 732, incl 2Over 800 to 22,000, incl Over 732 to 20,117, incl3Over 22,000 Over 20,1175Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reprod
43、uction or networking permitted without license from IHS-,-,-SAE - 8 - AMS 3907A AMS 3907A4.3.1.3 A statistical sampling plan, acceptable to purchaser, may be used in lieuof sampling as in 4.3.1 and the report of 4.6 shall state that such planwas used.le to purchaser.4.3.2 For Preproduction Tests: Sh
44、all be acceptab4.4 Approval:4.4.1 Sample cloth shall be approved by purchaseris supplied, unless such approval be waivedbefore cloth for production useby purchaser. Results of testson production cloth shall be essentially equivalent to those on approvedsample.4.4.2 Manufacturer shall use ingredients
45、, manufacturing procedures, processes,and methods of inspection on production cloth which are essentially thesame as those used on the approved sample. If necessary to make any changein ingredients, in type of equipment for processing, or in manufacturingprocedures, manufacturer shall submit for rea
46、pproval a statement of theproposed changes in ingredients and/or processing and, when requested,sample cloth. Production cloth made by the revised procedure shall not beshipped prior to receipt of reapproval.4.5 Test Methods:4.5.1 Curling: Two specimens of cloth, l-1/2 by 6 inches (38.1 by 152 mm) s
47、hallbe cut, one having the long dimension parallel to the filling and the otherwith the long dimension parallel to the warp. Both specimens shall beplaced on a flat surface for at least five minutes and visually examinedfor evidence of curling.4.5.2 Yard-by-Yard (Meter-by-Meter) Examination: Each ro
48、ll in the sample shallbe examined on the face side only. When the total length of the roll doesnot exceed 100 yards (91 m), the entire roll shall be examined. When thetotal length on the roll exceeds 100 yards (91 m), only 100 yards (91 m)shall be examined. All imperfections, as defined in FED-STD-4
49、,Section III, which are visible at normal inspection distance of 3 feet(0.9 m) shall be scored and assigned demerit points as listed in 4.5.2.4except as follows:4.5.2.1 Only coarse yarns that exceed twice the normal yarn diameter shall bescored.4.5.2.2 Mixed filling (shade bar) shall be scored only when resulting from wrongplay, wrong twist in the yarn, or off shade yarn.Copyright SAE International Provided b
