BS EN 2262-1995 Silicone rubber (VMQ PVMQ) with high tear strength - Hardness 50 IRHD《高撕裂强度的硅合成橡胶(VMQ PVMQ) 硬度 50 IRHD》.pdf

1、BRITISH STANDARD AEROSPACE SERIES BS EN 2262:1995 Silicone rubber (VMQ/PVMQ) with high tear strength Hardness 50 IRHD The European Standard EN2262:1995 has the status of a British Standard ICS 49.040.10 UDC 678.074:620.1:629.7BSEN 2262:1995 This British Standard, having been prepared under the direc

2、tionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes intoeffect on 15November1995 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference ACE/25 Draft for comment 94/714388 DC ISBN 0 580 24082 7 Committees res

3、ponsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee ACE/25, Rubber and elastomeric materials for aerospace purposes, upon which the following bodies were represented: British Adhesives and Sealants Association British Hydromechanics Resear

4、ch Group British Narrow Fabrics Association British Rubber Manufacturers Association Ltd. Ministry of Defence Society of British Aerospace Companies Limited Amendments issued since publication Amd. No. Date CommentsBSEN 2262:1995 BSI 11-1999 i Contents Page Committees responsible Inside front cover

5、National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Application of the material 3 4 Properties 3 5 Designation 3 6 Technical specification 3 Table 1 Test methods 4 Table 2 Tests after exposure to test media 5 List of references Inside back coverBSEN 2262:1995 ii BSI 11-1999 National

6、 foreword This British Standard has been prepared by Technical Committee ACE/25 and is the English language version of EN2262:1995 Aerospace Series Silicone rubber (VMQ/PVMQ) with high tear strength Hardness 50 IRHD, published by the European Committee for Standardization (CEN). EN 2262 was produced

7、 as a result of international discussion in which the UnitedKingdom took an active part. The European Standard EN3207, referred to inclause2, is in preparation and there is at present no corresponding British Standard. Preliminary copies of prEN3207 are available from: BNAE, Techniques54,199 rue Jea

8、n Jacques Rousseau,92138 Issy les Moulineaux Cedex, Paris, France. 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 immunit

9、y from legal obligations. Cross-references Publication referred to Corresponding British Standard ISO 1629:1987 BS 3502 Symbols for plastics and rubber materials Part2:1991 Schedule for symbols for rubbers ISO 1817:1985 BS 903 Physical testing of rubber Part A16:1987 Determination of the effect of l

10、iquids Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 6, 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 ame

11、ndment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2262 September 1995 ICS 49.040.10 Descriptors: Aircraft industry, rubber, silicones, hardness, tear strength English version Aerospace series Silicone rubber (VMQ/PVMQ) with high tear strength Hardness50IRHD

12、Srie arospatiale lastomre silicone (VMQ/PVMQ) rsistance leve au dchirement Duret 50 DIDC Luft- und Raumfahrt Silicon-Elastomer (VMQ/PVMQ) mit hohem Weiterreiwiderstand Hrte 50 IRHD This European Standard was approved by CEN on 1995-03-02. CEN members are bound to comply with the CEN/CENELEC Internal

13、 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 references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. T

14、his European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are

15、the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komit

16、ee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members Ref. No. EN 2262:1995 EEN 2262:1995 BSI 11-1999 2 Foreword This European Standard has been prepared b

17、y the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this standard has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior t

18、o 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 March1996, and conflicting national standards shall be withdrawn at the latest by March1996. According to the CEN/CENELEC

19、 Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom.EN 2262:1995 BSI 11-1999 3 1 Scope

20、 This standard specifies the properties of silicone rubber (VMQ/PVMQ) 1) , with high tear strength, hardness50IRHD, for aerospace applications. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are

21、cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edi

22、tion of the publication referred to applies. ISO 1629, Rubber and latices Nomenclature. ISO 1817, Rubber, vulcanized Determination of the effect of liquids. EN 3207, Aerospace series Rubber compounds Technical specification 2) . 3 Application of the material The suitability of the material for a spe

23、cific 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. 3.1 Typical use For application as ozone and weather resistant rubber with good thermal properties and high tear st

24、rength. NOTEThe ozone resistance test is not required. 3.2 Temperature range 4 Properties See Table 1 andTable 2. For qualification, all tests shall be performed. For batch acceptance, the tests identified inTable 1 andTable 2 shall be performed. 5 Designation 6 Technical specification EN 3207 1) Sy

25、mbol as per ISO1629 2) In preparation at the date of publication of this standard Continuous service : from 55 C to+200 C Intermittent service : from 55 C to+225 CEN 2262:1995 4 BSI 11-1999 Table 1 Test methods Line Column 1 2 3 Properties Units Requirements 1 Hardness IRHD 50 * 2 3 Density Mg/m 3 1

26、) * 4 5 Tensile strength MPa 8,5 min. * 6 7 Elongation at break % 500 min. * 8 9 Modulus at% strain MPa 10 11 Tear strength N/mm 22 min. 12 13 Resistance to low temperatures TR10 C 40 max. 14 Crystallization Point 15 Compression set 15.1 after 70 h to 150 C % 45 max. * 15.2 after h to C 16 Ozone res

27、istance Ozone concentration : ( ) pphm 17 Elongation of test piece: % Time : h Temperature : C 18 Corrosion and adhesion on metals in a dry atmosphere 19 Time Temperature :h : C 20 Corrosion and adhesion on metals in a damp atmosphere 20.1 Time Temperature Humidity :h : C : % 20.2 Time Temperature H

28、umidity :h : C : % 21 22 23 24 25 26 27 28 39 30 * Test for batch acceptance 1) The value determined for each batch shall not differ from that determined at qualification by more than 0,02Mg/m 3 . +5 4EN 2262:1995 BSI 11-1999 5 Table 2 Tests after exposure to test media Line Column 1 2 3 4 5 1 Test

29、media Air Oil No. 1 see ISO 1817 Test fluid 101 see ISO 1817 2 Conditions of exposure in test media Units 70 h/225 C 70 h/150 C 70 h/150 C 3 Permitted variation of the properties compared to the initial value Volume % a 4 Mass % 5 Tensile strength % 30 max. 35 max. 6 Elongation at break % 40 max. 30

30、 max. 7 Hardness IRHD 8 a Test for batch acceptance +12 0 +40 0 +10 0 0 106 blankBSEN 2262:1995 BSI 11-1999 List of references See national foreword.BS EN 2262:1995 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing

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