1、_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 suitability for any particular use, including any patent infringement arising theref
2、rom, 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 2013 SAE InternationalAll rights reserved. No part of this publication may b
3、e 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: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (outside USA)Fax
4、: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS3806FAEROSPACEMATERIALSPECIFICATIONAMS3806 REV. FIssued 1946-01Reaffirmed 2006-01Revised 2013-11Supers
5、eding AMS3806ECloth, Airplane, Mercerized Cotton80 Pounds Force (356 N) Breaking StrengthRATIONALEThis standard has been revised as a result of the normal 5 year review process. The revisions made update some of the test methods and reference documents for more specific detail and methodology.1. SCO
6、PE1.1 FormThis specification covers one strength and one weave of mercerized cotton cloth known as “airplane cloth.“1.2 ApplicationThis cloth has been used typically for covering aircraft surfaces, such as wings, fuselage, ailerons, elevators, and other airfoil surfaces, but usage is not limited to
7、such applications.1.3 Safety-Hazardous MaterialsWhile the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole respon
8、sibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.2. APPLICABLE DOCUMENTSThe issue of the following documents in effect on the date of the purchase
9、order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issu
10、e of that document shall apply.SAE AMS3806F Page 2 of 82.1 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM D 629 Quantitative Analysis of TextilesASTM D 3775 Standard Test Method for Warp
11、 (End) and Filling (Pick) Count of Woven Fabrics ASTM D 3776/D3776M Mass per Unit Area (Weight) of Woven FabricASTM D 5034 Breaking Force and Elongation of Textile Fabrics (Grab Test)ASTM D 5035 Breaking Force and Elongatoin of Textile Fabrics (Strip Test)2.2 U.S. Government PublicationsAvailable fr
12、om the Document Automation and Production Service (DAPS), Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6257, http:/quicksearch.dla.mil/.MIL-STD-2073-1 DOD Materiel, Procedures for Development and Application of Packaging Requirements3. TECHNICAL REQUIREMENTS3.1 Materia
13、l3.1.1 MercerizationThe cloth shall be piece mercerized, or the yarn may be mercerized under tension.3.1.2 YarnThe cloth shall be woven from 2-ply, combed cotton yarn.3.1.3 WeaveThe weave shall be plain (one up and one down).3.1.4 FinishingThe cloth shall be uniformly finished in accordance with the
14、 best practice for high-grade airplane cloth. Finishing shall consist of washing, framing, and calendering. The calendering shall be sufficient to lay any nap present and shall provide a smooth, even surface. Nap may be removed by singeing.3.2 PropertiesThe cloth shall conform to requirements shown
15、in Table 1; tests shall be performed on the cloth supplied and in accordance with specified test methods.SAE AMS3806F Page 3 of 8TABLE 1 - PROPERTIESParagraph Property Requirement Test Method3.2.1 Weight: ASTM D 3776/D3776M3.2.1.1 Ounces per square yard, maximumNominal width: 36 inches 4.042 inches
16、4.060 inches and over 4.53.2.1.2 g/m2, maximumNominal width: 914 mm 1361067 mm 1361524 mm and over 1533.2.2 Thread Count, ends perinch (25.4 mm):Warp and Fill, each 80 to 84ASTM D 37753.2.3 Breaking Strength, each direction:Pounds force per inchwidth, minimum(kN/m width), minimum80(14.0)ASTM D 5035,
17、3.2.4 Elongation:At 70 pounds force (311 N) load,(All Widths), maximumWarp Fill16% 11%4.5.13.2.5 Burst Strength: Mullen, minimum 170 points 4.5.23.2.6 Sizing, Finishing, and OtherNon-Fibrous Materials, maximum 3.5%ASTM D 629,Equation 33.2.6.1 A desizing operation may be performed to reduce the sizin
18、g content to the maximum specified.SAE AMS3806F Page 4 of 83.3 QualityThe cotton fibers shall be evenly spun into yarns of proper and uniform yarn count, twist, and diameter to produce the texture and weight required. The yarn shall be reasonably free from nap breaks, broken ends, uneven threads, an
19、d knots. Yarns shall be closely woven into fabric, uniform in body and appearance, and which shall be reasonably free from striations due to variable weaving operations.3.4 TolerancesShall be as shown in Table 2.3.4.1 WidthTABLE 2A - WIDTH TOLERANCES,INCH/POUND UNITSNominal WidthInchesTolerancesplus
20、 and minusInches36 1/242 5/860 169 190 1-1/2TABLE 2B - WIDTH TOLERANCES,SI UNITSNominal WidthMillimetersTolerancesplus and minusMillimeters914 12.71067 15.91524 25.41753 25.42286 38.13.4.2 Length of CutThe length of a single cut shall be not less than 40 yards (36.6 m) except that 10% of the total y
21、ardage of one width under any contract or order may be in short lengths of 10 to 25 yards (9 to 23 m). However, short lengths shall be rolled together and the roll properly labeled to indicate that it is composed of short lengths.3.4.3 Length of RollThe cloth shall be furnished on rolls containing t
22、he lengths shown in Table 3.SAE AMS3806F Page 5 of 8TABLE 3A - ROLL LENGTHSINCH/POUND UNITSNominal WidthInchesRoll LengthYards36 and 42 500 to 60060 and 69 250 to 30090 175 to 200TABLE 3B - ROLL LENGTHSSI UNITSNominal WidthMillimetersRoll LengthMeters914 and 1067 457 to 5491524 and 1753 229 to 27422
23、86 160 to 1834. QUALITY ASSURANCE PROVISIONS4.1 The vendor of cloth shall supply all samples for vendors tests and shall be responsible for performing all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the cloth conforms
24、 to the requirements of this specification.4.2 Classification of Tests4.2.1 Acceptance TestsTests for weight (3.2.1), thread count (3.2.2), breaking strength (3.2.3), elongation (3.2.4), quality (3.3), and tolerances (3.4) are acceptance tests and shall be performed on each lot.4.2.2 Preproduction T
25、estsTests for all technical requirements are preproduction tests and shall be performed prior to or on the initial shipment of cloth to a purchaser, when a change in ingredients and/or processing requires reapproval as in 4.4.2, and when purchaser deems confirmatory testing to be required.4.2.2.1 Fo
26、r direct U.S. Military procurement, substantiating test data and, when requested, preproduction test material shall be submitted to the cognizant agency as directed by the procuring activity, contracting officer, or request for procurement.4.3 Sampling and TestingShall be as follows:4.3.1 For Accept
27、ance TestsEach lot of cloth shall be 100% examined visually for quality (3.3). Sufficient cloth shall be taken at random from each lot to perform all other required tests; the number of determinations for each requirement shall be as specified in the applicable test procedure or, if not specified th
28、erein, not less than three, taken from the full width of cloth.SAE AMS3806F Page 6 of 84.3.1.1 A lot shall be all cloth produced in a single production run under the same fixed conditions and presented for vendors inspection at one time. A lot shall not exceed 5000 yards (4572 m).4.3.1.2 When a stat
29、istical sampling plan has been agreed upon by purchaser and vendor, sampling shall be in accordance with such plan in lieu of sampling as in 4.3.1 and the report of 4.6 shall state that such plan was used.4.3.2 For Preproduction TestsAs agreed upon by purchaser and vendor.4.4 Approval4.4.1 Sample cl
30、oth shall be approved by purchaser before cloth for production use is supplied, unless such approval be waived by purchaser. Results of tests on production cloth shall be essentially equivalent to those on the approved sample.4.4.2 Vendor shall use ingredients, manufacturing procedures, processes, a
31、nd methods of inspection on production cloth which are essentially the same as those used on the approved sample. If necessary to make any change in ingredients, in type of equipment for processing, or in manufacturing procedures, vendor shall submit for re-approval a statement of the proposed chang
32、es in ingredients and/or processing and, when requested, sample cloth. Production cloth made by the revised procedure shall not be shipped prior to receipt of re-approval.4.5 Test Methods4.5.1 ElongationShall be determined in accordance with ASTM D 5035, at 70 pounds force (311 N) with elongation me
33、asured from a base line on the chart to a point at which the curve intersects 70 pounds force (311 N) load ordinate with the base line passing through the point where the curve leaves the zero ordinate.4.5.2 Bursting StrengthShall be determined with a hydraulic-type machine in which the cloth is fir
34、mly clamped against a rubber diaphragm, through which the pressure is applied to a circular area of approximately 1 square inch (645 mm2). The pressure required to burst the cloth is registered on an accurate Bourdon tube-type gage, calibrated in pounds per square inch (kPa), the readings of which a
35、re designated as points. The bursting strength shall be ascertained by taking the average of not less than 10 tests. No less than 20 tests shall be made before a delivery of cloth is rejected.4.6 ReportsThe vendor of cloth shall furnish with each shipment a report showing the results of tests to det
36、ermine conformance to the acceptance test requirements and stating that the cloth conforms to the other technical requirements. This report shall include the purchase order number, lot number, AMS3806F, vendors material designation, width, and quantity.4.7 Resampling and RetestingIf any specimen use
37、d in the above tests fails to meet the specified requirements, disposition of the cloth may be based on the results of testing three additional specimens for each original nonconforming specimen. Except as specified in 4.5.2, failure of any retest specimen to meet the specified requirements shall be
38、 cause for rejection of the cloth represented. Results of all tests shall be reported.SAE AMS3806F Page 7 of 85. PREPARATION FOR DELIVERY5.1 IdentificationThe cloth shall incorporate a legible,continuous marking to show the manufacturers name or trade mark and AMS3806F. This marking may be along the
39、 selvage.5.2 Packaging5.2.1 A lot of cloth be packaged in small quantities and delivered under the basic lot approval provided lot identification is maintained.5.2.2 Packaging shall be accomplished to ensure that the cloth, during shipment and storage, will not be permanently distorted and will be p
40、rotected against damage from exposure to moisture, weathering, or any other normal hazard.5.2.3 Each package shall be permanently and legibly marked with not less than the following information; characters shall not be obliterated by normal handling:CLOTH, AIRPLANE, MERCERIZED COTTON, MERCERIZED, 80
41、 POUNDS FORCE (356 N) BREAKING STRENGTHAMS3806FYARDAGE _WIDTH _DATE OF MANUFACTURE _LOT NUMBER _MANUFACTURERS IDENTIFICATION _PURCHASE ORDER NUMBER _5.2.4 Packages of cloth shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations p
42、ertaining to the handling, packaging, and transportation of the cloth to ensure carrier acceptance and safe delivery.5.2.5 For direct U.S. Military procurement, packaging shall be in accordance with MIL-STD-2073-1, Commercial Level, unless Level A is specified in the request for procurement.: 6. ACK
43、NOWLEDGMENTA vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders.7. REJECTIONSCloth not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.SAE AMS3806F Page 8 of 88. N
44、OTES8.1 A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the docum
45、ent, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only.8.2 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Celsius tem
46、peratures are shown as the approximate equivalents of the primary units and are presented only for information.8.3 For direct U.S. Military procurement, purchase documents should specify not less than the following:Title, number, and date of this specificationWidth of cloth desiredQuantity of cloth
47、desiredLevel A packaging, if required (See 5.2.5).8.4 Similar SpecificationsMIL-C-5646 is listed for information only and shall not be construed as an acceptable alternate unless all requirements of this AMS are met.8.5 Cloth meeting the requirements of this specification has been classified under Federal Supply Classification (FSC) 8305.PREPARED BY AMS COMMITTEE “P“
