《BS-F-151-1991.pdf》由会员分享,可在线阅读,更多相关《BS-F-151-1991.pdf(12页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD AEROSPACE SERIES BS F 151:1991 Specification for Shuttleless woven cotton webbing for aerospace purposes Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS F 151:1991 This British Standard, hav
2、ing been prepared under the direction of the Aerospace Standards Policy Committee (ACE/-), was published under the authority of the Board of BSI and comes into effect on 31 January 1991 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference ACE/21 Draft for
3、 comment 90/70002 DC ISBN 0 580 19114 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee (ACE/21) upon which the following organizations were represented: British Narrow
4、Fabrics Association Ministry of Defence Society of British Aerospace Companies Limited Society of Dyers and Colourists Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Unco
5、ntrolled Copy, (c) BSI BS F 151:1991 BSI 02-2000i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2General requirements1 3Yarn1 4Manufacture of webbing1 5Finish1 6Construction and properties2 7Identification2 Appendix A Information to be supplied by the purchaser3 Appendix
6、B Obsolescent widths3 Figure 1 Shuttleless construction with spool type interlocking3 Figure 2 Shuttleless construction with the weft knitted with a locking thread4 Figure 3 Shuttleless construction with the weft secured by two knitted locking threads5 Table 1 General requirements (given in BS F 100
7、)1 Table 2 Construction and properties of webbing with widths used in new designs2 Table 3 Construction and properties of obsolescent widths3 Publications referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncon
8、trolled Copy, (c) BSI BS F 151:1991 ii BSI 02-2000 Foreword This British Standard, prepared under the direction of the Aerospace Standards Policy Committee, is one of a series for textiles of a quality suitable for aerospace purposes. This is a new standard for shuttleless woven cotton webbing. Shut
9、tleless woven cotton webbing was previously included in BS 4F 49:1984 which has been withdrawn and superseded by BS 5F 49:1991. This British Standard differs from BS 4F 49 in that reference to the construction and properties of webbing with obsolescent widths has been transferred to an appendix, and
10、 the quality requirements defined in the latest edition of BS F 100 have been identified. WARNING NOTES 1) This standard calls for the use of substances and/or test procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical suitability and in no way
11、 absolves either the supplier or the user from statutory obligations relating to health and safety at any stage of manufacture or use. 2) This standard specifies pentachlorophenyl laurate (PCPL) as the only approved rotproofing treatment for aerospace fabrics. Alternative treatments are under develo
12、pment, and this standard will be updated to delete PCPL as soon as an approved alternative treatment for aerospace fabrics is available. Product certification. Users of this British Standard are advised to consider the desirability of third party certification of product conformity with this British
13、 Standard based on testing and continuing surveillance, which may be coupled with assessment of a suppliers quality systems against the appropriate Part of BS 5750. Enquiries as to the availability of third party certification schemes will be forwarded by BSI to the Association of Certification Bodi
14、es. If a third party certification scheme does not already exist, users should consider approaching an appropriate body from the list of Association members. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for thei
15、r correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6, an inside back cover and a back cover. This standard has been updated (see
16、 copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS F 151:1991 BSI 02-20001 1 S
17、cope This British Standard specifies the requirements for shuttleless woven cotton webbing in a range of widths for aerospace purposes. NOTE 1The information to be supplied by the purchaser in the contract or order is listed in Appendix A. NOTE 2The titles of the publications referred to in this sta
18、ndard are listed on the inside back cover. NOTE 3The latest revision of an Aerospace Series standard is indicated by a prefix number. 2 General requirements In addition to the requirements specified in clauses 3 to 7, the following sections and clauses of the latest edition of BS F 100 shall apply (
19、see Table 1). 3 Yarn The yarn shall be unsized cotton yarns of nominal linear densities as follows: a) warp: 3 ply yarn of resultant linear density 150 tex; b) weft: 2 ply or 3 ply yarn of resultant linear density 40 to 50 tex; c) locking thread: yarn of resultant linear density 20 to 40 tex. 4 Manu
20、facture of webbing 4.1 The weave shall be 2/2, 1“ V twill. 4.2 The webbing shall be woven on shuttleless looms in accordance with one of the following methods: a) with spool type interlocking (SI) in the body of the webbing using the same yarn as the weft (see Figure 1 for guidance); or b) with the
21、weft knitted with a locking thread (1L) (see Figure 2 for guidance); or c) with the weft secured by two knitted locking threads (2L) (see Figure 3 for guidance). NOTEThe method of weaving required should be stated in the contract or order (see Appendix A). 4.3 The edges of shuttleless constructions
22、complying with 4.2 shall be uniform and even. NOTEThe knitted edge should be pulled as closely as possible into the body of the fabric to avoid beading. 5 Finish 5.1 Condition of material The webbing shall be supplied in one of the following conditions: a) loomstate; or b) scoured and rotproofed; or
23、 c) scoured, dyed and rotproofed. NOTEThe finish required should be stated in the contract or order (see Appendix A). 5.2 Rotproofing 5.2.1 Where the webbing is to be supplied rotproofed, the webbing or the yarns from which it is woven shall be treated with pentachlorophenyl laurate (PCPL) from aque
24、ous emulsion in accordance with BS 2087-1, normal process. 5.2.2 No other rotproofing agent shall be used. Table 1 General requirements (given in BS F 100) SectionTitleRequirements and tests 1GeneralAll requirements 2Quality requirements Requirements for manufacture of narrow fabrics Requirements fo
25、r dimensions and tolerances Requirements for dyed textiles except those related to fabric intended for coating Requirements for freedom from corrosive impuritiesa (see section 4) Requirements for freedom from defects of woven narrow fabrics 3Physical testsTest for the determination of the number of
26、threads per unit length in fabrics Test for the determination of the mass of fabrics Test for breaking strength and extension under load 4Chemical testsIf required by section 2: test for conductivity of aqueous extract test for pH value of aqueous extract test for water soluble chloride test for wat
27、er soluble sulphate a Applies to scoured, dyed or rotproofed fabrics only complying with items b) and c) of 5.1 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS F 151:1991 2 BSI 02-2000 5.3 Dyeing 5.3.1 Where
28、 dyeing is required, either the webbing or the yarns from which it is woven shall be dyed. 5.3.2 Where dyeing is required, the colour shall be specified by reference to a British Standard, e.g. BS 381C, or otherwise by pattern. NOTEThe colour required should be stated in the contract or order (see A
29、ppendix A). 6 Construction and properties The webbing in the condition as supplied shall comply with the requirements of Table 2. NOTE 1The width required should be stated in the contract or order (see Appendix A). NOTE 2A pick denotes two threads laid per shed. NOTE 3Obsolescent widths for use on e
30、xisting equipment are quoted in Appendix B. Table 2 Construction and properties of webbing with widths used in new designs 7 Identification The webbing shall be identified by the number of this British Standard1), i.e. BS F 151, together with the width and, where required, the colour and rotproofing
31、 requirements. NOTEThis identification may be codified. For example, 50 mm wide webbing woven with one locking thread, dyed olive drab and rotproofed PCPL may be identified as BS F 151/50 mm/1 L/BS 381C No. 298/PCPL. Width Number of ends in widtha Maximum mass per unit length Minimum breaking streng
32、th Number of picks per centimetre mm 10 20 25 30 40 45 50 75 100 30 56 74 90 116 130 148 222 294 g/m 6.5 13.0 17.0 20.0 27.0 29.0 33.0 50.0 66.0 N 440 845 1 100 1 300 1 750 1 950 2 200 3 350 4 450 12 0.5 a Tolerance +4 0 1) Marking BS F 151 on or in relation to a product represents a manufacturers d
33、eclaration of conformity, i.e. a claim by or on behalf of the manufacturer that the product meets the 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
34、 of conformity, which may also be desirable. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS F 151:1991 BSI 02-20003 Appendix A Information to be supplied by the purchaser The following information should be
35、 stated by the purchaser in the contract or order: a) the number of this British Standard i.e. BS F 151; b) the method of weaving (see 4.2); c) the type of finish required (see 5.1); d) the colour, if required dyed (see 5.3); e) the width required (see clause 6). Appendix B Obsolescent widths The ob
36、solescent widths quoted in Table 3 should be used only for existing equipment. Table 3 Construction and properties of obsolescent widths Width Number of ends in widtha Maximum mass per unit length Minimum breaking strength Number of picks per centimetre mm 13 38 38 112 g/m 8.3 27.0 N 535 1 650 12 0.
37、5 12 0.5 a Tolerance +4 0 Figure 1 Shuttleless construction with spool type interlocking Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS F 151:1991 4 BSI 02-2000 Figure 2 Shuttleless construction with the we
38、ft knitted with a locking thread Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS F 151:1991 BSI 02-20005 Figure 3 Shuttleless construction with the weft secured by two knitted locking threads Licensed Copy:
39、London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS F 151:1991 BSI 02-2000 Publi
40、cations referred to BS F 49, Specification for shuttle woven cotton webbing for aerospace purposes2). BS F 100, Procedure for inspection and testing of textiles. BS 381C, Specification for colours for identification, coding and special purposes. BS 2087, Preservative treatments for textiles. BS 2087
41、-1, Specification for treatments. 2) Referred to in foreword only Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS F 151:1991 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is
42、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 Standards are updated by amendment or revision. Users of British Standards should make sure
43、 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 using this British Standard would inform the Secretary of the technical committee responsib
44、le, 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 receive the latest editions of standards. Buying standards Orders for all BSI, internat
45、ional and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise req
46、uested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and servi
47、ces. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel
48、: 020 8996 7002. Fax: 020 8996 7001. Copyright Copyright subsists 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, sto
49、red in a retrieval system or transmitted in any form or by any 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 payme
链接地址:https://www.31doc.com/p-3745131.html