1、. CEN EN82430 95 3404589 0132369 055 I BRITISH STANDARD AEROSPACE SERIES E thylene-Prop ylene Rubber (EPM/EPDM) Hardness 70 IRHD The European Standard EN 2430 : 1995 has the status of a British Standard ICs 49.040.10 BS EN 2430 : 1995 CEN ENa2430 95 II 3404589 OLL2370 877 = of the Standards Board an
2、d comes into effect on 15 November 1995 O BSI 1995 Amd. No. . Date lext affected BS EN 2430 : 1995 Committees responsible for this British Standard The preparation of this British Standard was entrusted to lechnical Committee ACE/25, Rubber and elastomeric materials for aerospace purposes, upon whic
3、h the following bodies were represented: British Adhesives and Sealants Association British Hydromechanics Research Group British Narrow Fhbrics Association British Rubber Manufacturers Association Ltd. Ministry of Defence Society of British Aerospace Companies Limited The following BSI references r
4、elate to the work on this standard: Committee reference ACE125 Draft for comment 90172816 DC ISBN O 580 24085 1 BS EN 2430 : 1995 Contents Committees responsible National foreword page Inside front cover ii Foreword 2 Specification 1 Scope 3 2 Normative references 3 3 Application of the material 3 4
5、 Properties 3 5 Designation 3 6 %chnical specification 3 ables 1 Test methods 4 2 Tests after exposure to test media 5 i CEN ENa2430 95 II 3404589 03B2372 b4T I BS EN 2430 : 1995 National foreword This British Standard has been prepared by Technical Committee ACE125 and is the English language versi
6、on of EN 2430 : 1994, Aerospace Series - Ethykne propylene rubber (EMP/EPDM) - Hardness 70 IRHD, published by the European Committee for Standardization (GEN). EN 2430 was produced as a result of international discussion in which the United Kingdom took an active part. Cross-references IS0 1629 : 19
7、87 IS0 1817 : 1985 Publication referred to Corresponding British Standard BS 3502 Symbols for plastics and rubber materials Part 2 : 1991 Schedule for symbols for rubbers BS 903 Physical testing of rubber Part A16 : 1987 Determination of the effects of liquids The European Standard EN 3207, referred
8、 to in clause 2, is in preparation and there is at present no corresponding British Standard. Preliminary copies of prEN 3207 are available from: BNAE, Technopolis 54, 199 rue Jean Jacques Rousseau, 92138 Issy les Moulineaux Cedex, Pans, France. Compliance with a British Standard does not of itself
9、confer immunity from legal obligations. 11 CEN EN*2430 95 E 3404589 0312373 58b H EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2430 September 1995 ICs 49.040.10 Descriptors: aircraft industry, rubber, ethylene-propylene rubber, hardness English version Aerospace series Ethylene-propylene rub
10、ber (EPM/EPDM) Hardness 70 IRHD Srie arospatiale - lastomre thylne-propylne (EPM/EPDM) - Duret 70 DIDC Luft- und Raumfahrt - Ethylen-Propylen-Elastomer (EPM/EPDM) - Hrte 70 IRHD This European Standard was approved by CEN on 1995-03-02. CEN members are bound to comply with the CENKENELEC Internal Reg
11、ulations 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. This
12、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 the
13、national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. GEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee f
14、r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1995 Copyright reserved to CEN members Ref. No. EN 2430 : 1995 E CEN EN*Z430 95 IBP 3404589 OLL2374 412 = I Page 2 EN 2430 : 1995 Foreword This European Standard has been prepared by the European Association of Aerospace Manufactur
15、ers (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 to its presentation to GEN. This European Standard
16、shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 1996, and conflicting national standards shall be withdrawn at the latest by March 1996. According to the CEN / CENELEC Internal Regulations, the following countries
17、 are bound to implement this European Standard: Austria, Belguim, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. CEN ENx2430 95 3404569 0332375 359 I Page 3 EN 2430 : 1995 1 Scope This standar
18、d specifies the properties of ethylene-propylene rubber (EPMEPDM) 1, hardness 70 IRHD, for aerospace applications. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate plac
19、es 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 edition of the publication refer
20、red to applies. IS0 1629 Rubber and latices - Nomenclature IS0 1817 EN 3207 Rubber, vulcanized - Determination of the effect of liquids Aerospace series - Rubber compounds - Technical specification *) 3 Application of the material lhe suitability of the material for a specific application shall be d
21、etemined by complementary tests camed out on the finished product as the properties specified in this standard are obtained from standard test specimens. 3.1 Typical use Application requiring a resistance to ozone, weather and phosphate ester based hydraulic fluids. NOTE : This material shall not be
22、 used for the manufacture of dynamic seals in flight hydraulic systems. 3.2 Temperature range - Continuous service : from - 55 C to + 125 C - Intermittent service : from - 55 C to + 160 C 4 Properties See tables 1 and 2. For qualification, all tests shall be performed. For batch acceptance, the test
23、s identified in tables 1 and 2 shall be perfomed. 5 Designation Description block I Identity block RUBBER I EN2430 -7- Number of this standard 1 6 Technical specification EN 3207 Symbol as per IS0 1629 2, In preparation at the date of publication of this standard CEN EN*2430 95 3404589 Oll237b 295 I
24、 Density Tensile strength Page 4 EN 2430 : 1995 Mg/m3 1) 3 MPa 10 min. 3 Table 1 - Test methods I Elongation at break I YQ 5 6 7 8 9 10 11 12 13 14 15 200 min. 3 I 20.1 Tear strength I 20.2 N/mm 20 min. p= 23 Resistance to low temperatures TR1 O I 30 C - 30 max. 1 Crystallization Point I Properties
25、l Units 1 Requirements - Hardness :ompression set afier 70 h to 100 C afler - h tO - C Ozone resistance 3zoneconcentration : ( 200 i 20 ) pphm Time Temperature Corrosion and adhesion on metals in a dry atmosphere Elongation of test piece : 20 % 168 h 30 C Time -h Temperature : - C Time -h Temperatur
26、e : - C Humidity -% Time -h Temperature : - C Humidity -% Corrosion and adhesion on metals in a damp atmosphere % 40max. 7 * - Nil cracking - - * - - - Modulus at - % strain I MPa I - I I 7 Test for batch acceptance I 1) The value determined for each batch shall not differ from that determined at qu
27、alification by more thar I0:02 Mg/m3. U CEN EN*2430 95 3404589 03112377 321 = Page 5 EN 2430 : 1995 o E CI m al O CI CI al I N o N v- I - - x E O o I - - x 2 O cv I - - DV) I T- DO + e- - n I - v) tn a) e I - ? BS EN 2430 : 1995 List of references See national foreword. BS EN 2430 : 1995 BSI 389 Chi
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