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1、BS 2F 151:2007 Specification for Shuttleless woven cotton webbing for aerospace purposes ICS 49.025.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Licensed Copy: London South Bank University, London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007
2、, Uncontrolled Copy, (c) BSI Publishing and copyright information The BSI copyright notice displayed in this document indicates when the document was last issued. BSI 2007 ISBN 978 0 580 60437 9 The following BSI references relate to the work on this standard: Committee reference ACE/65 Draft for co
3、mment 07/30166750 DC Publication history BS 3F 49 published in 1972 BS 4F 49 published in February 1984 First published as BS F 151 January 1991 Amendments issued since publication Amd. no.DateText affected BS 2F 151:2007 Licensed Copy: London South Bank University, London South Bank University, Thu
4、 Dec 20 02:57:05 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2007i BS 2F 151:2007 Contents Foreword ii 1Scope 1 2Information and requirements to be agreed and documented 1 3Terms and definitions 1 4General requirements 1 5Yarn 2 6Manufacture of webbing 2 7Finish 4 8Construction and properties 5 9
5、Identification 5 Annexes Annex A (informative) The determination of Mystox IP on fabric 6 Annex B (informative) Obsolescent widths 8 Bibliography 9 List of figures Figure 1 Shuttleless construction with spool type interlocking 3 Figure 2 Shuttleless construction with the weft knitted with a locking
6、thread 3 Figure 3 Shuttleless construction with the weft secured by two knitted locking threads 4 List of tables Table 1 General requirements (given in BS F 100) 2 Table 2 Construction and properties of webbing with widths used in new designs 5 Table B.1 Construction and properties of obsolescent wi
7、dths 8 Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 9 and a back cover. Licensed Copy: London South Bank University, London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS 2F 151:2007 ii BSI 2007 Fo
8、reword Publishing information This British Standard was published by BSI and came into effect on 30 November 2007. It was prepared by Technical Committee ACE/39, Textiles for aerospace purposes. A list of organizations represented on this committee can be obtained on request to its secretary. Supers
9、ession This British Standard supersedes BS F 151:1991, which is withdrawn. Information about this document This new edition incorporates technical changes only. It does not represent a full review or revision of the standard, which will be undertaken in due course. Hazard warnings Use of this docume
10、nt It has been assumed in the preparation of this British Standard that the execution of its provisions will be entrusted to appropriately qualified and experienced people, for whose use it has been produced. Presentational conventions The provisions of this standard are presented in roman (i.e. upr
11、ight) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”. Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element. Contractual and legal considerations This publication d
12、oes not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. WARNING. This British Standard calls for the use of substances and/or procedures that can be inj
13、urious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. Licensed Copy: London South Bank University, London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 20
14、07, Uncontrolled Copy, (c) BSI BSI 20071 BS 2F 151:2007 1 Scope This British Standard specifies the requirements for shuttleless woven cotton webbing in a range of widths for aerospace purposes. NOTEThe latest revision of an Aerospace Series standard is indicated by a prefix number. 2 Information an
15、d requirements to be agreed and documented The following information to be supplied by the purchaser shall be fully documented. For compliance with the standard both the definitive requirements specified throughout the standard and the following documented items shall be satisfied: a)the number of t
16、his British Standard, i.e. BS 2F 151; b)the method of weaving (see Clause 6); c)the type of finish required (see 7.1); d)the colour, if required dyed (see 7.3.); e)the width required (see Clause 8). 3 Terms and definitions For the purposes of this British Standard, the following terms and definition
17、s apply. 3.1protective treatment product containing a 50:50 blend of ()-1-(2-(2,4-dil) -4-propyl-1,3-dioxolan-2-yl) methyl)-1H-1,2,4-triazole and 3-iodo-2-propynyl-butyl carbamate, applied at 0.4% to 0.8% combined actives on weight of fibre NOTE An example product is Mystox R.1) For a relative test
18、method see Annex A. 4 General requirements In addition to the requirements specified in Clauses 5 to 9, the following sections and clauses of the latest edition of BS F 100 shall apply (see Table 1). 1) Mystox R is proprietary to Catomance Ltd. This information is given for the convenience of users
19、of this standard and does not constitute an endorsement by BSI of the product named. Equivalent products may be used if they can be shown to lead to the same results. Licensed Copy: London South Bank University, London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007, Uncontrolled Copy, (c)
20、 BSI BS 2F 151:2007 2 BSI 2007 5 Yarn The yarn shall be unsized cotton yarns of nominal linear densities as follows. Warp: 3 ply yarn of resultant linear density 150 tex. Weft: 2 ply or 3 ply yarn of resultant linear density 40 to 50 tex. Locking thread: yarn of resultant linear density 20 to 40 tex
21、. 6 Manufacture of webbing The weave shall be 2/2, 1 “ V twill. The webbing shall be woven on shuttleless looms in accordance with one of the following methods. i)With spool type interlocking (SI) in the body of the webbing using the same yarn as the weft (see Figure 1 for guidance). ii)With the wef
22、t knitted with a locking thread (1L) (see Figure 2 for guidance). iii) With the weft secured by two knitted locking threads (2L) (see Figure 3 for guidance). The method of weaving required shall be stated in the contract or order see 2b). 1 2 - - Table 1General requirements (given in BS F 100) Secti
23、onTitleRequirements and tests 1GeneralAll requirements 2Quality requirements Requirements for manufacture of narrow fabrics Requirements for dimensions and tolerances Requirements for dyed textiles except those related to fabric intended for coating Requirements for freedom from corrosive impurities
24、 A) (see section 4) Requirements for freedom from defects of woven narrow fabrics 3Physical testsTest for the determination of the number of 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 requ
25、ired by section 2: test for conductivity of aqueous extract test for pH value of aqueous extract test for water soluble chloride test for water soluble sulphate A) Applies to scoured, dyed or rotproofed fabrics only complying with items b) and c) of 7.1. Licensed Copy: London South Bank University,
26、London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 20073 BS 2F 151:2007 Figure 1Shuttleless construction with spool type interlocking Key 1 = Warp yarn2 = Spool locking thread3 = Weft yarn Figure 2Shuttleless construction with the weft knitted with a loc
27、king thread 2 1 3 Licensed Copy: London South Bank University, London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS 2F 151:2007 4 BSI 2007 The edges of shuttleless constructions shall be uniform and even. NOTEThe knitted edge should be pulled as closely as
28、possible into the body of the fabric to avoid beading. 7 Finish 7.1Condition of material The webbing shall be supplied in one of the following conditions: a)loomstate; or b)scoured and rotproofed; or c)scoured, dyed and rotproofed. The finish required shall be stated in the contract or order see 2c)
29、. 7.2Rotproofing Where the webbing is to be supplied rotproofed, the webbing or the yarns from which it is woven shall be treated with a protective treatment as described in 3.1. Figure 3Shuttleless construction with the weft secured by two knitted locking threads Key 1 = Locking thread2 = Locking t
30、hread 1 2 Licensed Copy: London South Bank University, London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 20075 BS 2F 151:2007 7.3Dyeing Where dyeing is required, either the webbing or the yarns from which it is woven shall be dyed. Where dyeing is requi
31、red, the colour shall be specified by reference to a British Standard, e.g. BS 381C, or otherwise by pattern. The colour required shall be stated in the contract or order see 2d). 8 Construction and properties The webbing in the condition as supplied shall comply with the requirements of Table 2. Th
32、e width required shall be stated in the contract or order see 2e). NOTE 1A pick denotes two threads laid per shed. NOTE 2Obsolescent widths for use on existing equipment are quoted in Annex B. 9 Identification The webbing shall be identified by the number of this British Standard, i.e. BS 2F 151,2)
33、together with the width and, where required, the colour and rotproofing requirements. NOTEThis identification may be codified. For example, 50 mm wide webbing dyed olive drab and a rotproofed product containing a protective treatment may be identified as BS 6F 49/50 mm/BS 381C No. 298/. Table 2Const
34、ruction and properties of webbing with widths used in new designs Width mm Number of ends in width A) Max. mass per unit length g/m Min. breaking strength N Number of picks per centimetre 10306.5 440 12 0.5 205613.0 845 257417.01 100 309020.01 300 4011627.01 750 4513029.01 950 5014833.02 200 7522250
35、.03 350 10029466.04 450 A) Tolerance +4 0. 2) Marking BS 2F 151:2007 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 requirements of the standard. The accuracy of the claim is solely the
36、claimants responsibility. Such a declaration is not to be confused with third-party certification of conformity. Licensed Copy: London South Bank University, London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS 2F 151:2007 6 BSI 2007 Annex A (informative)Th
37、e determination of Mystox IP on fabric A.1Application To fabrics treated with products containing Mystox IP such as Mystox R, Mystox WR and Mystox IP itself. A.2Apparatus HPLC fitted with Lichrosorb RP18 column 10 cm 4.6 mm ID, detector set at 230 nm UV pump at 2 ml/minute. Absorbance 8 0.01 integra
38、tor to measure peak areas and retention times. HPLC 560 autosampler. 2 ml glass vials with PFTE seals and screw caps. Ultrasonic bath set at 75 C. 0.45 4 syringe filters. Calibrated stopwatch. Grade A pipettes. A.3Reagents Acetonitrile HPLC. Methanol HPLC. 0.05% ammonium carbonate solution. Elution
39、solvent: 50 vol. acetonitrile + 50 vol. 0.05% ammonium carbonate solution (mix well before use). A.4Methods For UKAS accredited tests, ensure two replicate samples are prepared and the fabric is conditioned for 24 hours prior to the test at 20 C 2 C and 65% 2% RH. Into a 22 ml reaction vessel weigh
40、0.500 0.005 g diced fabric using a four-figure analytical balance, and whose calibration check is 0.003 g of the stated calibration weight. Place pipette in 10 ml of methanol and cap (teflon side down). Wrap PTFE tape around the threads of the bottle and screw cap on securely. Heat the water in the
41、ultrasonic bath. Check the temperature and when it is 75 C 2 C place the reaction tubes in the bath. Switch on the ultrasonic generator and sonicate for 15 minutes against a calibrated stopwatch. At the end of this time transfer the vials to a cold water bath for rapid cooling. Filter the extracts t
42、hrough a 0.45 4 syringe filter into a screw-top glass vial pending HPLC analysis. Wash out the syringe with methonol between samples; do not re-use the methanol. Dispose of the syringe using an environmentally acceptable method. Wash glassware. Dry and return to the analytical laboratory. Licensed C
43、opy: London South Bank University, London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 20077 BS 2F 151:2007 A.5Standardization Prepare a strong stock propiconazole containing (10 Assay %) grams of laboratory analysed standard to 100 ml total volume in met
44、hanol. This stock is stable for at least three months when stored in a refrigerator. It contains 0.1% propiconazole. On the day of use prepare sub-dilution of 1 ml stock to 10 ml methanol this is a 100 mg/L standard. A.6Analysis Switch on the HPLC and associated equipment for hr to stabilize using e
45、lution solvent. Set up and run queue for propiconazole analysis (method 5-13). Program and start autosampler. Record the RT and peak areas for the standard (AS). Inject each sample twice and obtain the mean sum for peak areas (AT). Follow method 5-12 cleaning procedure for HPLC column. This should b
46、e carried out at the discretion of the user if cleaning is thought necessary. Warning signs that cleaning is required include peak splitting, poor peak resolution and baseline variablility. A.7Calculation Mystox IP %0.01 AT AS - - 10 sample weight -4= Licensed Copy: London South Bank University, Lon
47、don South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS 2F 151:2007 8 BSI 2007 Annex B (informative)Obsolescent widths The obsolescent widths quoted in Table B.1 should be used only for existing equipment. Table B.1Construction and properties of obsolescent width
48、s Width mm Number of end in width A) Max. mass per unit length g/m Min. breaking strength N Number of picks per centimetre 13388.3 53512 0.5 3811227.01 65012 0.5 A) Tolerance +4 0 . Licensed Copy: London South Bank University, London South Bank University, Thu Dec 20 02:57:05 GMT+00:00 2007, Uncontr
49、olled Copy, (c) BSI BSI 20079 BS 2F 151:2007 Bibliography For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. BS F 100, Procedure for inspection and testing of textiles BS 381C, Specification for colours for identification, coding and special purposes Licensed Copy: London South Bank University, London South Bank University, Thu