1、BRITISH STANDARD AEROSPACE SERIES BS F 139:1989 Incorporating Amendment No. 1 Specification for Aluminized polychloroprene rubber-coated nylon fabric (350 g/m 2 ) for aerospace purposes UDC 678.675:678.066:678.763.2:678.01:667.767:678.046.2 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY CO
2、PYRIGHT LAWBS F 139:1989 This British Standard, having been prepared under the direction of the Aerospace Standards Committee ACE/-, was published under the authority of the Board of BSI and comes into effect on 31 July 1989 BSI 23 November 2001 The following BSI references relate to the work on thi
3、s standard: Committee reference ACE/54 Draft for comment 87/71842 DC ISBN 0 580 17057 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Aerospace Standards Committee (ACE/-) to Technical Committee ACE/54 upon which the following bodies w
4、ere represented: British Fabric Association British Rubber Manufacturers Association British Textile Employers Association Man-made Fibres Producers Committee Ministry of Defence Society of British Aerospace Companies Limited Society of Dyers and Colourists Amendments issued since publication Amd. N
5、o. Date of issue Comments 13279 23 November 2001 Deletion of 5.2BS F 139:1989 BSI 23 November 2001 i Contents Page Committees responsible Inside front cover Foreword ii 1S c o p e 1 2 General requirements 1 3M a t e r i a l 1 4 Manufacture 1 5 Properties of coated fabric 1 6T y p e t e s t s 2 7P a
6、c k a g i n g 2 8 Identification 2 Table 1 General requirements 1 Table 2 Properties of coated fabric 2 Publications referred to 3BS F 139:1989 ii BSI 23 November 2001 Foreword This British Standard, prepared under the direction of the Aerospace Standards Committee, is one of a series for textiles o
7、f a quality suitable for aerospace purposes and replaces MOD Specification UK/AID/983. During its preparation, the applicable basic quality requirements contained in BS F 100 have been included in the text. The standard specifies the requirements for a coated fabric intended primarily for heat refle
8、ctive covers for aircraft. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pag
9、es This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 3 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.BS F 139:1989 BSI 23 November 2001 1 1 Scope This British Standard specifies the requirement
10、s for a single-ply nylon fabric coated on both sides with polychloroprene rubber and having an aluminized face. NOTE 1 The titles of the publications referred to in this standard are listed on the inside back cover. NOTE 2 The latest revision of an Aerospace Series Standard is indicated by a prefix
11、number. 2 General requirements In addition to the specific requirements of clauses 3, 4, 5, 6, 7 and 8, the following clauses of the latest edition of BS F 100 shall apply (see Table 1): Table 1 General requirements (given in BS F 100) 3 Material The base textile shall comply with the requirements o
12、f BS F 127 fabric number 6 and shall be supplied loomstate. 4 Manufacture 4.1 The textile shall be coated on both sides with a base compound containing not less than: a) 45 % by mass of polychloroprene; and b) 15 % by mass of carbon black; and c) one part of a non-staining antioxidant per hundred pa
13、rts of elastomer. 4.2 The surface designated the inner shall be coated with 125 g/m 2 10 g of the base compound defined in 4.1. 4.3 The surface designated the outer shall be coated with a nominal 80 g/m 2of the base compound defined in 4.1 and shall then be built up to a mass of 105 10 g/m 2with the
14、 base compound in which the carbon black is replaced by sufficient aluminium pigment or paste to ensure that the vulcanized face complies with 5.2. 4.4 The coated fabric shall be vulcanized to comply with 5.4. 5 Properties of coated fabric 5.1 The coated fabric shall comply with the requirements of
15、5.2, 5.3, 5.4 and Table 2. 5.2 Deleted 5.3 The coated fabric shall be free from pin holes when examined in accordance with Appendix A of BS F 100 using transmitted light. 5.4 When tested in accordance with method 25B of BS 3424-22:1983, the coating shall show no signs of tackiness. Section Title Req
16、uirements and tests 1 General All requirements 2 Quality requirements Requirements for the manufacture of wide fabrics. Requirements for dimensions and tolerances (general and wide fabrics). Requirements for freedom from defects of coated fabrics and examination. 3 Physical tests Test for mass. Test
17、 for tearing strength. Test for reflecting power of aluminium facing. Test for variation of mass across width of coated fabric. Test for adhesion of surface coating.BS F 139:1989 2 BSI 23 November 2001 6 Type tests The type tests shown in Table 2 shall be performed on the initial batch of each contr
18、act and thereafter at intervals not exceeding 5 000 m of fabric or whenever a change is made to the coating formulation. 7 Packaging 7.1 The coated fabric shall be rolled evenly on tubes longer than the width of the fabric. 7.2 Each roll of coated fabric shall be wrapped in black polyethylene film h
19、aving a nominal thickness of 0.15 mm. Each end of a roll shall be sealed to prevent contamination for example by water, oil and dust. NOTE At 6-monthly intervals the rolls should be undone, re-rolled and re-packaged to avoid build-up of heat within the roll. 7.3 The outer wrapping shall carry the co
20、mplete identification marking and state the length of fabric on the roll. 8 Identification 8.1 The fabric shall be identified by the number of this British Standard, i.e. BS F 139:1989. 1) 8.2 If marking of the fabric is required, the marking medium used shall comply with Appendix B of BS F 100. NOT
21、E The purchaser should state in the contract or order if marking is required. Table 2 Properties of coated fabric 1) Marking BS F 139:1989 on or in relation to a product represents a manufacturers declaration of conformity, i.e. a claim by or on behalf of the manufacturer that the product meets the
22、requirements of the standard. The accuracy of the claim is therefore solely the responsibility of the person making the claim. Such a declaration is not to be confused with third party certification of conformity, which may also be desirable. Property Requirement Method of test Total mass per unit a
23、rea of coated fabric (max.) (g/m 2 ) 350 BS F 100 Width (mm) 1 220 BS F 100 Variation of mass across width (max.) (g/m 2 ) 22 BS F 100 Tearing strength (min.) (N) Across warp Across weft 50 45 BS F 100 Total mass per unit area of coating (g/m 2 ) Inner face Outer face 125 10 105 10 BS 3424-3: method
24、 5 Adhesion of surface coating (min.) (N/50 mm) Inner face Outer face 25 25 BS F 100 Before ageing After ageing a Cold crack (not higher than) C) b 30 30 BS 3424-8: method 10A Flexing after 20 000 cycles b No cracking or delamination No cracking or delamination BS 3424-9: method 11B Blocking b No ad
25、herence or peeling No adherence or peeling BS 3424-11: method 13A a Sample to be aged for 336 2 h at 70 2 C and 95 2%r. h. b Type test (see clause 6). BS F 139:1989 BSI 23 November 2001 3 Publications referred to BS F 100, Procedure for inspection and testing of textiles. BS F 127, Specification for
26、 nylon fabrics suitable for coating with natural or synthetic elastomers. BS 3424, Testing coated fabrics. BS 3424-3, Methods 5A, 5B and 5C. Methods for determination of mass per unit area. BS 3424-8, Methods 10A, 10B and 10C. Methods for determination of low temperature performance. BS 3424-9, Meth
27、ods 11A, 11B, 11C and 11 D. Methods for determination of resistance to damage by flexing. BS 3424-11, Method 13. Method for determination of resistance to blocking. BS 3424-22, Method 25. Methods for determination of fusion of PVC coatings and the state of cure of vulcanized rubber coatings.BS F 139
28、:1989 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Sta
29、ndards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while usi
30、ng this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically
31、 receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. Standards are also available from the BSI website at http:/www.bsi-. In response to order
32、s for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library
33、 and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards deve
34、lopments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsi
35、sts in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any
36、 means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070.
