1、BS 6F 49:2007Shuttle woven cotton webbing for aerospace purposesICS 49.025.60NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDSpecification forPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the document was
2、last issued. BSI 2007ISBN 978 0 580 57020 9The following BSI references relate to the work on this standard:Committee reference ACE/65Draft for comment 07/30150406 DCPublication historyBS 3F 49 published in 1972BS 4F 49 published in February 1984BS 5F 49 published in January 1991Amendments issued si
3、nce publicationAmd. no. Date Text affectedBS 6F 49:2007 BSI 2007 iBS 6F 49:2007ContentsForeword ii1 Scope 12 Information and requirements to be agreed and documented 13 Terms and definitions 14 General requirements 15 Yarn 16 Manufacture of webbing 27 Finish 28 Construction and properties 39 Identif
4、ication 3AnnexesAnnex A (informative) The determination of Mystox IP on fabric 4Annex B (informative) Obsolescent widths 5Bibliography 6List of tablesTable 1 General requirements (given in BS F 100) 2Table 2 Construction and properties of webbing with widths used in new designs 3Table B.1 Constructi
5、on and properties of obsolescent widths 5Summary of pagesThis 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.BS 6F 49:2007ii BSI 2007ForewordPublishing informationThis British Standard was published by BSI and came into ef
6、fect 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can be obtained on request to its secretary.SupersessionThis British Standard supersedes BS 5F 49:1991, which is withdrawn.Information about
7、 this documentThis 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 warningsUse of this documentIt has been assumed in the preparation of this British Standard that the execution of its pro
8、visions will be entrusted to appropriately qualified and experienced people, for whose use it has been produced.Presentational conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “
9、shall”.Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of a contract. Users are responsible for its
10、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 injurious to health if adequate precautions are not taken. It refers only to technical suitability and doe
11、s not absolve the user from legal obligations relating to health and safety at any stage. BSI 2007 1BS 6F 49:20071 ScopeThis British Standard specifies the requirements for shuttle woven cotton webbing in a range of widths for aerospace purposes.NOTE The latest revision of an Aerospace Series standa
12、rd is indicated by a prefix number.2 Information and requirements to be agreed and documentedThe 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 docu
13、mented items shall be satisfied.a) the number of this British Standard i.e. BS 6F 49;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 definitionsFor the purposes of this British
14、 Standard, the following terms and definitions apply.3.1 protective treatmentproduct 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% 0.8% combined actives on weight of fibreNOTE An example prod
15、uct is Mystox R.1)For a relative test method see Annex A.4 General requirementsIn 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).5YarnThe yarn shall be unsized cotton yarns of nominal linear den
16、sities as follows. Warp: 3 ply yarn of resultant linear density 150 tex. Weft: 3 ply yarn of resultant linear density 90 tex.1)Mystox R is proprietary to Catomance Ltd. This information is given for the convenience of users of this standard and does not constitute an endorsement by BSI of the produc
17、t named. Equivalent products may be used if they can be shown to lead to the same results.BS 6F 49:20072 BSI 20076 Manufacture of webbing1) The weave shall be 2/2 V twill.2) The webbing shall be woven on shuttle looms.3) The webbing shall have an orange identifying yarn positioned centrally down the
18、 webbing and this shall be included in the total warp ends. 7 Finish7.1 Condition of materialThe webbing shall be supplied in one of the following conditions.a) loomstateb) scoured and rotproofedc) scoured, dyed and rotproofed.NOTE The finish required should be stated in the contract or order.7.2 Ro
19、tproofingWhere 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.Table 1 General requirements (given in BS F 100) Section Title Requirements and tests2 Quality requirements Requirements for manuf
20、acture of narrow fabricsRequirements for dimensions and tolerancesRequirements for dyed textiles except those related to fabric intended for coatingRequirements for freedom from corrosive impurities A)(see section 4)Requirements for freedom from defects of woven narrow fabrics3 Physical tests Test f
21、or the determination of the number of threads per unit length in fabricsTest for the determination of the mass of fabricsTest for breaking strength and extension under load4 Chemical tests If required by section 2:test for conductivity of aqueous extracttest for pH value of aqueous extracttest for w
22、ater soluble chloridetest for water soluble sulphateA)Applies to scoured, dyed or rotproofed fabrics only complying with items b) and c) of 6.1. BSI 2007 3BS 6F 49:20077.3 Dyeing7.3.1 Where dyeing is required, either the webbing or the yarns from which it is woven shall be dyed.7.3.2 Where dyeing is
23、 required, the colour shall be specified by reference to a British Standard, e.g. BS 381C, or otherwise by pattern.NOTE The colour required should be stated in the contract or order.8 Construction and propertiesThe webbing in the condition as supplied shall comply with the requirements of Table 2.NO
24、TE 1 The width required should be stated in the contract or order.NOTE 2 Obsolescent widths for use on existing equipment are quoted in Annex B.9 IdentificationThe webbing shall be identified by the number of this British Standard, i.e. BS 6F 49,2)together with the width and, where required, the col
25、our and rotproofing requirements.NOTE This 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 5F 49/50 mm/BS 381C No. 298/.Table 2 Construction and properties of webbing with widths used i
26、n new designsWidthmmNumber of ends in width A)Max. mass per unit lengthg/mMin. breakingstrengthNNumber of picks per centimetre10 30 6.5 44020 56 13.0 84525 74 17.0 1 10030 90 20.0 1 30040 116 27.0 1 750 12 0.545 130 29.0 1 95050 148 33.0 2 20075 222 50.0 3 350100 294 66.0 4 450A)Tolerance +40.2)Mark
27、ing BS 6F 49:2007 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 claimants responsibility. Such a declaration is not
28、 to be confused with third-party certification of conformity.BS 6F 49:20074 BSI 2007Annex A (informative) The determination of Mystox IP on fabricA.1 ApplicationTo fabrics treated with products containing Mystox IP such as Mystox R, Mystox WR and Mystox IP itself.A.2 ApparatusHPLC fitted with Lichro
29、sorb RP18 column 10 cm x 4.6 mm ID, detector set at 230 nm UV pump at 2 ml/min.Absorbance 8 0.01 integrator to measure peak areas and retention times.HPLC 560 autosampler. 2 ml glass vials with PTFE seals and screw caps.Ultrasonic bath set at 75 C.0.45 4 syringe filters.Calibrated stopwatch.Grade A
30、pipettes.A.3 ReagentsAcetonitrile HPLC.Methanol HPLC.0.05% ammonium carbonate solution.Elution solvent: 50 vol. acetonitrile + 50 vol. 0.05% ammonium carbonate solution (mix well before use).A.4 MethodsFor UKAS accredited tests, ensure two replicate samples are prepared and the fabric is conditioned
31、 for 24 hours prior to the test at 20 C 2 C and 65% 2% RH.Into a 22 ml reaction vessel weigh 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
32、PTFE tape around the threads of the bottle and screw cap on securely. Heat the water in the 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 min against a calibrated stopwatch. At the end of th
33、is time transfer the vials to a cold water bath for rapid cooling.Filter the extracts through 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 acc
34、eptable method.Wash glassware. Dry and return to the analytical laboratory. BSI 2007 5BS 6F 49:2007A.5 StandardizationPrepare a strong stock propiconazole containing (10 Assay %) grams of laboratory analysed standard to 100 ml total volume in methanol. This stock is stable for at least three months
35、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.6 AnalysisSwitch on the HPLC and associated equipment for hr to stabilize using elution solvent. Set up and run queue for propiconazole a
36、nalysis (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 be carried out at the discretion of the user if cleaning i
37、s thought necessary. Warning signs that cleaning is required include peak splitting, poor peak resolution and baseline variablility.A.7 CalculationAnnex B (informative) Obsolescent widthsThe obsolescent widths quoted in Table B.1 should be used only for existing equipment.Mystox IP % 0.01ATAS-10samp
38、le weight- 4=Table B.1 Construction and properties of obsolescent widthsWidthmmNumber of ends in width A)Max. mass per unit lengthg/mMin. breaking strengthNNumber of picks per centimetre13 38 8.3 535 12 0.538 112 27.0 1 650 12 0.5A)Tolerance +40.BS 6F 49:20076 BSI 2007BibliographyFor dated reference
39、s, 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.This page delibera
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