1、BRITISH STANDARD AEROSPACE SERIES BS EN 2744:1992 Non-metallic materials Preferredtest temperatures The European Standard EN 2744:1992 has the status of a British StandardBSEN2744:1992 This British Standard, having been prepared under the directionof the Aerospace Standards Policy Committee, waspubl
2、ished under the authorityof the Standards Boardand comes into effect on 15August1992 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/64 Draft for comment 90/81692 DC ISBN 0 580 20937 7 Cooperating organizations The European Committee for Standard
3、ization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisl
4、iito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Insp
5、ection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisa
6、tion United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN2744:1992 BSI 01-2000 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 2744 3 National annex NA (informative) Inside back cover Natio
7、nal annex NB (informative) Inside back coverBSEN2744:1992 ii BSI 01-2000 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN2744:1992, Aerospace series Non metallic materials Preferred tes
8、t temperatures, published by the European Committee for Standardization (CEN). EN 2744 was produced as a result of international discussions in which the United Kingdom took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British St
9、andards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theENtitle page, pages2 to4, an inside back cover and a ba
10、ck cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN2744 March1992 UDC620.22:620.1-97:629.7 Descriptors: Aircraft industry,
11、non-metallic sections, preferred test temperatures English version Aerospace series Non metallic materials Preferred test temperatures Srie arospatiale Matriaux non mtalliques Tempratures prfrentielles dessais Luft- und Raumfahrt Nichtmetallische Werkstoffe Vorzugsprftemperaturen This European Stand
12、ard was approved by CEN on 1992-03-20. 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 references concerning such
13、national standards may be obtained on application to the Central Secretariat 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 a CEN member into its own language an
14、d notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedK
15、ingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1992 Copyright reserved to CEN members Ref. No. EN 2744:1992 EEN2744:1992 BSI 01-2000 2 Foreword This European Standard has been p
16、repared by the European Association of Aerospace Manufacturers (AECMA). After enquiries 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
17、, prior to its presentation to CEN. According to the Common CEN/CENELEC Rules, 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, Switze
18、rland and UnitedKingdom. Contents Page Foreword 2 1 Scope and field of application 3 2 References 3 3 Temperatures and tolerances 3 Table 3EN2744:1992 BSI 01-2000 3 1 Scope and field of application This standard specifies the preferred test temperatures for non-metallic materials. 2 References EN 27
19、43, Aerospace series Reinforced plastics Standard procedures for conditioning prior to testing 1) . 3 Temperatures and tolerances See Table. Table 1) Published as AECMA pre-standard at the date of publication of the present standard. Temperatures in C Tolerances in K Temperatures in C Tolerances in
20、K 249 196 161 3) + 105 +110 +120 +125 +130 1) +135 +140 1) +150 +155 1) +160 +175 +180 +190 1) +200 3 70 65 1) 62 1) 55 54 1) 50 1) 40 35 1) 25 20 1) 18 1) 15 1) 10 0 +2 1) +5 +10 1) +15 1) +23 2) +25 +30 1) +37 1) +38 1) +40 +45 1) +50 1) +55 +60 +70 +80 +82 +85 +90 + 100 3 +220 1) +225 +230 1) +26
21、0 +275 +300 +315 1) +320 1) +350 +400 5 +450 +500 +600 +630 1) +700 +750 1) 10 +800 +900 +950 1) + 1000 15 Notes: 1) Temperatures for particular fields. 2) For the temperatures of the standard atmospheres for conditioning prior to testing, EN2743 specifies an ordinary tolerance of 2K and a reduced t
22、olerance of 1K. The same tolerances apply to the temperature of the standard atmosphere for testing. 3) Below 75 C, the tolerances essentially depend on the equipment used.4 blankBSEN2744:1992 BSI 01-2000 National annex NA (informative) The United Kingdom participation in the preparation of this Eur
23、opean Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/64 upon which the following bodies were represented: British Plastics Federation Ministry of Defence Society of British Aerospace Companies Limited National annex NB (informative) There is no
24、British Standard corresponding to EN2743 referred to in the text. It is envisaged that a British Standard, identical in number and title, will be published in due course.BS EN 2744:1992 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body respo
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