1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 2847:2013Aerospace series Acrylonitrile-butadiene rubber(NBR) Fuel and synthetic oilresistant Hardness 70 IRHDBS EN 2847:2013 BRITISH STANDARDNational forewordThis British
2、Standard is the UK implementation of EN 2847:2013. The UK participation in its preparation was entrusted to TechnicalCommittee ACE/65, Non-metallic materials for aerospace purposes. A list of organizations represented on this committee can be obtained on request to its secretary.This publication doe
3、s not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013.ISBN 978 0 580 80355 0 ICS 49.025.40 Compliance with a British Standard cannot confer immunityfrom l
4、egal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2013.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 2847:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2847 February 2013 ICS 49.025
5、.40 English Version Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 70 IRHD Srie arospatiale - lastomre acrylonitrile butadine (NBR) - Rsistant aux carburants et aux huiles synthtiques - Duret 70 DIDC Luft- und Raumfahrt - Acrylinitril-Butadien-E
6、lastomer (NBR) - Bestndig gegen Brennstoffe und synthetische le - Hrte 70 IRHD This European Standard was approved by CEN on 3 November 2012. 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 nat
7、ional standard without any alteration. Up-to-date lists and bibliographical 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 ve
8、rsion in any other language made by translation under the responsibility of 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,
9、 Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdo
10、m. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES 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 2847:2013: EBS EN 284
11、7:2013EN 2847:2013 (E) 2 Contents Page Foreword . 3 1 Scope 4 2 Normative references . 4 3 Application of the material . 4 3.1 General . 4 3.2 Typical use . 4 3.3 Temperature range . 4 4 Properties . 4 5 Designation 6 6 Technical specification 6 Bibliography 7 BS EN 2847:2013EN 2847:2013 (E) 3 Forew
12、ord This document (EN 2847:2013) 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 Associations
13、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 August 2013, and conflicting national standards shall be
14、 withdrawn at the latest by August 2013. 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 Internal Regulat
15、ions, the national standards organisations 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, Ireland, Ital
16、y, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 2847:2013EN 2847:2013 (E) 4 1 Scope This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR) 1)
17、, fuel and synthetic oil resistant, hardness 70 IRHD, for aerospace applications. 2 Normative 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 unda
18、ted references, the latest edition of the referenced document (including any amendments) applies. EN 3207, Aerospace series Rubber compounds Technical specification ISO 1817, Rubber, vulcanized or thermoplastic Determination of the effect of liquids 3 Application of the material 3.1 General The suit
19、ability of the material for a specific application shall be determined by complementary tests carried out on the finished product as the properties specified in this standard are obtained from standard test specimens. 3.2 Typical use For applications where resistance to petroleum based fuels and die
20、ster based lubricants is required. 3.3 Temperature range Continuous service : from 40 C to 120 C; Intermittent service : from 40 C to 150 C. 4 Properties See Table 1 and Table 2 according to EN 3207. For qualification, all tests shall be performed. For batch acceptance, the tests identified with foo
21、tnote “a“ in Table 1 and Table 2 shall be performed. 1) Symbol as per ISO 1629.BS EN 2847:2013EN 2847:2013 (E) 5 Table 1 Test methods Line Column 1 2 3 Properties Units Requirements 1 Hardness IRHD 70 45+a2 3 Density Mg/m3a, b 4 5 Tensile strength MPa 10 min. a6 7 Elongation at break % 200 min. a8 9
22、 Modulus at % strain MPa 10 11 Tear strength N/mm 12 13 Resistance to low temperatures TR 10 C 25 max. 14 Crystallization Point 15 Compression set % 15.1 After 24 h to 125 C 35 max. a15.2 After 70 h to 125 C 40 max. 16 17 Ozone resistance Ozone concentration : ( ) pphm Elongation of test piece : % T
23、ime : h Temperature : C 18 19 Corrosion and adhesion on metals Time : 168 h Temperature : 100 C no corrosion no adhesion 20 Corrosion and adhesion on metals 20.1 Time : h Temperature : C Humidity : % 20.2 Time : h Temperature : C Humidity : % 21 22 23 24 25 26 27 28 29 30 aTest for batch accepted. b
24、The value determined for each batch shall not differ from that determined at qualification by more than 0,02 Mg/m3. BS EN 2847:2013EN 2847:2013 (E) 6 Table 2 Tests Line Column 1 2 3 4 5 1 Test media Air Liquid B, see ISO 1817 Liquid No. 1, see ISO 1817 2 Conditions of exposure in test media Units 70
25、 h/125 C 48 h/40 C 70 h/125 C 3 Permitted variation of the properties compared to the initial value Volume % + 30 a+ 10 a4 Mass % 5 Tensile strength % 10 a 6 Elongation at break % 45 a 7 Hardness IRHD 010+a 80a8 aTest for batch acceptance. 5 Designation EXAMPLE Description block RUBBER Identity bloc
26、k EN2847 Number of this standard 6 Technical specification See EN 3207. BS EN 2847:2013EN 2847:2013 (E) 7 Bibliography 1 ISO 1629, Rubber and latices Nomenclature This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British
27、Standards and other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. BSI is incorporated by Royal Charter. British Standards and other standardisation products are published by BSI Standards Limited.British Stand
28、ards Institution (BSI)raising standards worldwideBSI389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards and PASs are periodically updated by amendment or revision. Users of British Standards and PASs should make sure that they possess the latest amendments or
29、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 British Standards would inform the Secretary of the technical committee responsible, the identity of which can be found on the ins
30、ide frontcover. Similary for PASs, please notify BSI Customer Services.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001BSI offers BSI Subscribing Members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of British Standards and PASs
31、.Tel: +44 (0)20 8996 7669 Fax: +44 (0)20 8996 7001Email: Buying standardsYou may buy PDF and hard copy versions of standards directly using acredit card from the BSI Shop on the website addition all orders for BSI, international and foreign standards publicationscan be addressed to BSI Customer Ser
32、vices.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001Email: In response to orders for international standards, BSI will supply the British Standard implementation of the relevant international standard, unless otherwise requested.Information on standardsBSI provides a wide range of information on
33、national, Europeanand international standards through its Knowledge Centre.Tel: +44 (0)20 8996 7004 Fax: +44 (0)20 8996 7005Email: BSI Subscribing Members are kept up to date with standards developments and receive substantial discounts on the purchase priceof standards. For details of these and oth
34、er benefits contact Membership Administration. Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: Information regarding online access to British Standards and PASs via British Standards Online can be found at information about British Standards is available on the BSI website at www.bsi- the
35、 data, software and documentation set out in all British Standards and other BSI publications are the property of and copyrighted by BSI, or some person or entity that own copyright in the information used (such as the international standardisation bodies) has formally licensed such information to B
36、SI for commerical publication and use. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BS
37、I. 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. Details and advice can be obtained from the Copyright & Licensing Department.Tel: +44 (0)20 8996 7070Email:
