1、BRITISH STANDARD BS 9F 1:1992 (Superseding BS8F1:1975) Specification for 140 g/m 2linen (flax) fabric and serrated edge strip for aerospace purposesBS9F1:1992 This British Standard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspublished under the authorityo
2、f the Standards Boardand comes into effect on 15 August1992 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference ACE/54 Draft for comment 91/82667 DC ISBN 0 580 21030 8 Committees responsible for this British Standard The preparation of this British Stand
3、ard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/54, upon which the following bodies were represented: British Fabric Association British Rubber Manufacturers Association Ltd. British Textile Confederation Ministry of Defence Society of British Aerospa
4、ce Companies Limited Society of Dyers and Colourists Textile Finishers Association Amendments issued since publication Amd. No. Date CommentsBS9F1:1992 BSI 09-1999 i Contents Page Committees responsible Inside front cover Foreword ii Section 1. General 1.1 Scope 1 1.2 References 1 1.3 General requir
5、ements 1 Section 2. Linen (flax) fabric 2.1 Manufacture 2 2.2 Finish 2 2.3 Finishing for doping 2 2.4 Dyeing 2 2.5 Properties of the finished fabric 2 2.6 Make up 2 2.7 Identification 2 Section 3. Serrated strip 3.1 Manufacture 3 3.2 Width 3 3.3 Rotproofing 3 3.4 Identification 3 Annex A (informativ
6、e) Information to be supplied by the purchaser 4 Table 1 General requirements (given in BS F 100) 1 Table 2 Properties of the finished fabric 2 List of references Inside back coverBS9F1:1992 ii BSI 09-1999 Foreword This British Standard, prepared under the direction of the Aerospace Standards Policy
7、 Committee, is one of a series of a quality suitable for aerospace purposes. It is a revision of BS8F1:1975 which is withdrawn. During its preparation changes have been made to the technical requirements: primarily, the maximum mass per unit area has been increased by10g/m 2for all fabric finishes.
8、The quality requirements specified in BSF100 have also been identified. The quality assurance authority referred to in this standard is as stated in the contract or order, or the accredited representative of the authority stated as instructed by the prime contractors. WARNING NOTE 1. This standard c
9、alls 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 stability and in now way absolves either the supplier or the user from statutory obligations relating to health and safety at any stage of manufact
10、ure or use. WARNING NOTE 2. This standard specifies pentachlorophenyl laurate (PCPL) as the only approved rotproofing treatment for aerospace fabrics. Alternative treatments are under development, and this standard will be updated to delete PCPL as soon as an approved alternative treatment for aeros
11、pace fabrics is available. 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
12、es This document comprises a front cover, an inside front cover, pages i and ii, pages1 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.B
13、S 9F 1:1992 BSI 09-1999 1 Section 1. General 1.1 Scope This British Standard specifies a linen fabric and strips cut from it for use primarily on aircraft surfaces. Section2 details the fabric and section3 details the strip. NOTE 1The information to be supplied by the purchaser in the contract or or
14、der is listed inAnnex A. NOTE 2The latest revision of an Aerospace Series standard is indicated by a prefix number. 1.2 References 1.2.1 Normative references This British Standard incorporates, by reference, provisions from specific editions of other publications. These normative references are cite
15、d at the appropriate points in the text and the publications are listed on the inside back cover. Subsequent amendments to, or revisions of, any of these publications apply to this standard only when incorporated in it by updating or revision. 1.2.2 Informative reference This British Standard refers
16、 to a publication that provides information. The edition of this publication current at the time of issue of this standard is listed on the inside back cover, but reference should be made to the latest edition. 1.3 General requirements In addition to requirements specified in sections2 and3 of this
17、standard, the following sections and clauses of the latest edition of BSF100 shall apply (seeTable 1). Table 1 General requirements (given in BSF100) Section Title Requirements and tests 1 General All requirements 2 Quality requirements Requirements for the manufacture of wide fabrics Requirements f
18、or dimensions and tolerances (general and wide fabrics) Requirements for dyed textiles Requirements for freedom from faults: wide fabrics Requirements for freedom from corrosive impurities a 3 Physical tests Tests for the determination of the number of threads per unit length in woven fabrics Test f
19、or mass: mass per unit area of wide fabrics Breaking strength and extension under force: wide fabrics Test for doping properties 4 Chemical tests If required by section 2, further tests for freedom from corrosive impurities Test for alkali solubility a Applicable to scoured and dyed fabrics only.BS
20、9F 1:1992 2 BSI 09-1999 Section 2. Linen (flax) fabric 2.1 Manufacture 2.1.1 The fabric shall be manufactured from flax yarn. NOTEYarns of the following linear densities have been found suitable. 2.1.2 The mass of the yarn shall be reduced by either: a) not less than 12.5% by boiling in the yarn; or
21、 b) not less than 14% by boiling in the rove. 2.1.3 The yarn shall have a maximum residual alkali solubility of10.0%. 2.1.4 The weave shall be plain. 2.2 Finish The fabric shall be supplied in one of the following conditions: a) loomstate and cropped; or b) loomstate, cropped and singed; or c) finis
22、hed for doping; or d) scoured and dyed. NOTEThe finish required should be stated in the purchasers contract or order (seeA.1). 2.3 Finishing for doping NOTEIt will be necessary to obtain a standard sample from the quality assurance authority (see foreword) to carry out the required visual comparison
23、s. 2.3.1 The fabric shall be calendered to a smooth finish. 2.3.2 The doping properties shall conform to BSF100. 2.4 Dyeing Where dying is required, the colour of the fabric shall be specified either by reference to a British Standard, e.g. BS381C, or otherwise by pattern. NOTEThe requirement for dy
24、eing and the colour should be stated in the purchasers contract or order (seeA.1). 2.5 Properties of the finished fabric The finished fabric shall conform to the appropriate requirements ofTable 2. 2.6 Make up The fabric shall be delivered free from creases and either: a) lapped full width on drum b
25、oards having a width of150mm and a thickness of nominally12.5mm; or b) rolled full width on tubes with an outside diameter of nominally45mm. NOTEThe make up required should be stated in the purchasers contract or order (seeA.1). 2.7 Identification The fabric shall be identified for ordering purposes
26、 by the number, date and section of this British Standard, i.e. BS9F 1:1992, section2, together with the finish and, if required dyed, the colour. Table 2 Properties of the finished fabric a) before boiling in the yarn b) when boiling in the rove before spinning applies 2324 tex 2021 tex Finish Mini
27、mum no. threads/cm Maximum mass per unit area Minimum average breaking strength Warp Weft Warp Weft g/m 2 N/50 mm N/50 mm Loomstate and cropped Loomstate cropped and singed Finished for doping Scoured and dyed 29 29 29 30 31 31 30 28 160 155 155 165 680 680 680 620 725 715 700 590BS 9F 1:1992 BSI 09
28、-1999 3 Section 3. Serrated strip 3.1 Manufacture 3.1.1 The serrated strip shall be cut lengthwise from fabric which conforms to section2 of this standard and which has been finished for doping. 3.1.2 Each edge of the strip shall have4 to8 serrations per25mm and the depth of each serration shall not
29、 exceed3.5mm. 3.2 Width The width shall be measured between the peaks and the tolerance on the width shall not exceed mm. NOTEThe width required should be stated in the purchasers contract or order (seeA.2). 3.3 Rotproofing 3.3.1 If required, the fabric, prior to cutting, shall be rotproofed with pe
30、ntachlorophenyl laurate (PCPL) in accordance with BS2087-1:1992, normal process. 3.3.2 No other rotproofing agent shall be used. NOTEThe requirement for rotproofing should be stated in the purchasers contract or order (seeA.2). 3.4 Identification The serrated strip shall be identified for ordering p
31、urposes by the number, date and section of this British Standard, i.e. BS9F1:1992, section3, the width and, if required, the rotproofing. NOTEThis identification may be codified, i.e a100mm wide rotproofed strip may be identified as: BS 9F 1:1992, section 3/100 mm/PCPL. +4 0BS9F1:1992 4 BSI 09-1999
32、Annex A (informative) Information to be supplied by the purchaser A.1 Linen (flax) fabric The following information should be stated by the purchaser in the contract or order for linen (flax) fabric: a) the number of this British Standard (i.e.BS9F1); b) the finish required (see2.2); c) the colour,
33、if required dyed (see2.4); d) the make up (see2.6). A.2 Serrated strip The following information should be stated by the purchaser in the contract or order for serrated strip: a) the number of this British Standard (i.e.BS9F1); b) the colour, if required dyed (see2.4); c) the width required (see3.2)
34、; d) rotproofing, if required (see3.3).BS9F1:1992 BSI 09-1999 List of references (see 1.2) Normative references BSI standards publications BRITISH STANDARDS INSTITUTION, London BS 5F 100:1991, Procedure for inspection and testing of textiles for aerospace purposes 1) . BS 2087, Preservative textile
35、treatments. BS 2087-1:1992, Specification for treatments. Informative references BSI standards publications BRITISH STANDARDS INSTITUTION, London BS 381C:1988, Specification for colours for identification, coding and special purposes. 1) Edition current at time of publication (see1.3).BS 9F 1:1992 B
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