1、BSI Standards PublicationBS EN 4504:2013Aerospace series Non-metallic materials, Textiles Test method Determinationof flexibility of narrow fabricsBS EN 4504:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4504:2013.The UK participation in its preparation w
2、as entrusted to TechnicalCommittee ACE/65, Non-metallic materials for aerospace purposesNon-metallic materials for aerospace purposes.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisi
3、ons of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 81972 8ICS 49.025.60Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published un
4、der the authority of theStandards Policy and Strategy Committee on 31 August 2013.Amendments issued since publicationDate Text affectedBS EN 4504:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4504 August 2013 ICS 49.025.60 English Version Aerospace series - Non-metallic materials, Textile
5、s - Test method - Determination of flexibility of narrow fabrics Srie arospatiale - Matriaux non-mtalliques, Textiles - Mthode dessai - Dtermination de la flexibilit des tissus troits Luft- und Raumfahrt - Nichtmetallische Werkstoffe, Textilien - Prfverfahren - Bestimmung der Flexibilitat von Schmal
6、geweben This European Standard was approved by CEN on 8 May 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical
7、references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of
8、a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Mace
9、donia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUR
10、OPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4504:2013: EBS EN 4504:2013EN 4504:2013 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5
11、2 Normative references 5 3 Terms and definitions .5 4 Health and safety .5 5 Principle/Technique .5 6 Resources/Facilities 5 7 Test samples/Test pieces .6 8 Test procedure .6 9 Expression of results 6 10 Measurement uncertainties 6 11 Designation 6 12 Test report 7 BS EN 4504:2013EN 4504:2013 (E) 3
12、Foreword This document (EN 4504:2013) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associat
13、ions and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2014, and conflicting national standards s
14、hall be withdrawn at the latest by February 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Interna
15、l Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Irel
16、and, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4504:2013EN 4504:2013 (E) 4 Introduction This standard is part of the series of EN non-metallic materials for aerospa
17、ce applications. The general organisation of this series is described in EN 4385. This standard is a level 3 document as defined in EN 4385. BS EN 4504:2013EN 4504:2013 (E) 5 1 Scope This European Standard defines the requirements for the determination of the flexibility of narrow fabrics. 2 Normati
18、ve references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) ap
19、plies. prEN 4385, Aerospace series Non-metallic materials General organisation of standardisation Links between types of standards1)EN ISO 139, Textiles Standard atmospheres for conditioning and testing (ISO 139) 3 Terms and definitions For the purposes of this standard, the following terms and defi
20、nitions apply. 3.1 flexibility the degree of pliancy exhibited by a fabric (as indicated in the diagram at Figure 1) 4 Health and safety This standard does not necessarily include all health and safety requirements associated with its use. Persons using this standard shall be familiar with normal la
21、boratory/test house practices. It is the responsibility of the user to establish satisfactory health, safety and environment practices and to ensure conformity with any European, National or local laws/regulations. 5 Principle/Technique The test consists in measuring the flexibility of a narrow wove
22、n fabric on a block of wood or similar suitable material. 6 Resources/Facilities 6.1 Apparatus 6.1.1 A block, having a smooth upper horizontal plane face and an inclined plane length joining it at an angle of (138 1) as shown in Figure 1. The width of the block should be wide enough to fully support
23、 the sample under test. NOTE The upper surface should have a minimum length of 200 mm and the inclined plane should have a minimum length of 400 mm. 6.1.2 Two plate glass sheets of dimensions at least twice the maximum bending length specified in the individual textile specification and of suitable
24、width. 6.1.3 Ruler or suitably sized block of wood, the underside of which is sufficiently rough to grip specimen. 1) Published as ASD-STAN Prestandard at the date of publication of this standard BS EN 4504:2013EN 4504:2013 (E) 6 6.2 Materials/Reagents No requirements. 6.3 Qualification of personnel
25、 No specific technical requirements. 7 Test samples/Test pieces 7.1 Cut five specimens each approximately twice the maximum bending length specified in the individual textile specification and of full width from the test sample ensuring cut is perpendicular to the longitudinal direction. Mark each s
26、ample on its face side. 7.2 The samples are conditioned and tested in a standard atmosphere of (65 2) % r.h. and (20 2) C in accordance with EN 20139 Standard Temperate Atmosphere For Testing. 8 Test procedure 8.1 Conduct the test within the Standard Temperate Atmosphere For Testing (65 2) % r.h. an
27、d (20 2) C. 8.2 Place the specimen between two plate glass sheets for at least 2 hours and then remove. 8.3 Lay the specimen on the horizontal surface terminated at one end by a straight edge so that the length of the specimen is at right angles to, and one end is level with, that edge. Place a rule
28、r or suitable block of wood on top resting against the fabric guide and with its edge level with the edge of the sample, the underside of which is sufficiently rough to grip the specimen. NOTE 1 In order to achieve a better grip on the specimen adhesive, double sided adhesive tape or fine emery pape
29、r may be applied to the rule or block of wood to aid grip on sample. NOTE 2 The 0 mm mark of the ruler should coincide with the edge of the specimen at the change of slope. 8.4 Move the specimen lengthwise over the edge at a uniform rate of approximately 25 mm/5 s until the end of the sample touches
30、 the inclined plane when bending. 8.5 Record the length of fabric protruding beyond the edge as shown in Figure 1. 8.6 Make a similar determination with the other face of the same end of the specimen uppermost. 8.7 Test the other four specimens as described in 8.1 to 8.5. 9 Expression of results 9.1
31、 Calculate the mean of the five results obtained. 9.2 Record the highest and lowest individual result. 10 Measurement uncertainties Not applicable. 11 Designation Not applicable. BS EN 4504:2013EN 4504:2013 (E) 7 12 Test report The report shall include the following information: a) Reference to this
32、 European Standard, i.e. EN 4504; b) identification of sample tested (i.e. lot number, batch number); c) individual sample measurements and the mean of the five sample measurements with the face uppermost, individual sample measurements and the mean of the five sample measurements reverse uppermost;
33、 d) traceability to the individual who performed the test; e) date of test; f) details of any deviation from this test method. Key 1 Measured length 2 Ruler 3 Specimen 4 Block 5 Fabric guide Figure 1 This page deliberately left blankThis page deliberately left blankBSI is the national body responsib
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