《BS-EN-2591-307-1998.pdf》由会员分享,可在线阅读,更多相关《BS-EN-2591-307-1998.pdf(10页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-307:1998 Elements of electrical and optical connection Test methods Part 307: Salt mist The European Standard EN 2591-307:1998 has the status of a British Standard ICS 49.060 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:01:37 GMT+00:00 2006,
2、Uncontrolled Copy, (c) BSI BS EN 2591-307:1998 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 August 1998 BSI 05-1999 ISBN 0 580 30301 2 National foreword This Briti
3、sh Standard is the English language version of EN 2591-307:1998. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic, electrical and fibre optic technology, to Subcommittee ACE/6/3, Aerospace Connectors, which has the responsibility to: aid enquirers
4、 to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations repres
5、ented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspon
6、dence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. 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
7、 itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be
8、indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:01:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2591-307:1998 BSI 05-1999i Contents Page National forewordInside front
9、 cover Foreword2 Text of EN 2591-3073 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:01:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:01:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROP
10、ISCHE NORM EN 2591-307 June 1998 ICS 49.060 Descriptors: Aircraft industry, aircraft equipment, connecting equipment, test English version Aerospace series Elements of electrical and optical connection Test methods Part 307: Salt mist Srie arospatiale Organes de connexion lectrique et optique Mthode
11、s dessais Partie 307: Brouillard salin Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverfahren Teil 307: Salznebel This European Standard was approved by CEN on 22 June 1997. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condition
12、s 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 European Standard exists in three offi
13、cial 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 national standards bodies of Austria,
14、Belgium, Czech Republic, 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 Komitee fr Normung Central Secr
15、etariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN 2591-307:1998 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:01:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-30
16、7:1998 2 BSI 05-1999 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the
17、Official Services of the member countries of AECMA, 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 December 1998, and conflicting national standards shall be wit
18、hdrawn at the latest by December 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Ital
19、y, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Preparation of specimens3 4Apparatus3 5Method3 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:01:37 GMT+00:00 2006, Uncontrolled Copy, (
20、c) BSI EN 2591-307:1998 BSI 05-19993 1 Scope This standard specifies a method1) of assessing the effects of salt mist on elements of connection. It shall be used together with EN 2591. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publ
21、ications. These normative references are 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 revisi
22、on. For undated references the latest edition of the publication referred to applies. EN 2591, Aerospace series Elements of electrical and optical connection Test methods General. EN 2591-101, Aerospace series Elements of electrical and optical connection Test methods Part 101: Visual examination. E
23、N 2591-205, Aerospace series Elements of electrical and optical connection Test methods Part 205: Housing (shell) electrical continuity. EN 2591-408, Aerospace series Elements of electrical and optical connection Test methods Part 408: Mating and unmating forces2). 3 Preparation of specimens 3.1 The
24、 specimens shall be prepared according to the technical specification. 3.2 Unless specified in the technical specification, the following details shall be stated: number of mating and unmating operations before test (if applicable); specimens mated or unmated (if applicable); mounting method, positi
25、on and definition of specimen wiring; type of cable (if applicable); duration of the test; initial measurements (if applicable); final measurements and requirements (if applicable). 4 Apparatus 4.1 Test chamber It shall be so designed that: the conditions are maintained within the specified limits i
26、n 4.2 and 5.2; a sufficiently large volume is available, so that the installed specimens do not influence these conditions; the spray is not directed at the specimens under test; liquid cannot drip on the specimens. 4.2 Salt mist The solution for producing the salt mist shall be prepared by dissolvi
27、ng (50 1) g of sodium chloride (NaCl) analytical reagent quality in distilled or demineralized water to obtain (1 0,02) l of final solution at 20 C. The pH shall lie between 6,5 and 7,2. The solution shall have a temperature equal to that in the chamber. The sprayed solution shall not be re-used. 5
28、Method 5.1 Initial measurements (if applicable) They shall be carried out as specified. 5.2 Procedure 5.2.1 The temperature in the test chamber and of the solution shall be maintained at (35 2) C. 5.2.2 The spraying of the solution shall continue during the whole test. The pH value shall be checked
29、at the beginning and at the end of the test. 5.2.3 The specimens shall be divided into lots, so that they can be tested in all of the positions specified. They shall not be in contact with each other or with any other metal part. 5.2.4 The specimens shall be subjected to one of the following severit
30、ies, unless otherwise specified: 48 h; 96 h; 500 h. 5.3 Recovery The specimens shall be washed in running and/or demineralized water and then dried. 1) This method shall not be considered a general corrosion test. 2) Published as AECMA Prestandard at the date of publication of this standard Licensed
31、 Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:01:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-307:1998 4 BSI 05-1999 5.4 Final measurements and requirements (if applicable) The specimens shall be submitted to the following test sequence: EN 2591-101, paying particular attention to: 1) c
32、racking; 2) flaking or peeling of the plating; 3) pitting of exposed metal surfaces; EN 2591-205 (if applicable); EN 2591-408 (if applicable). Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:01:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na,
33、Thu Nov 02 18:01:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2591-307:1998 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the in
34、ternational level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services
35、. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individ
36、ual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. In response
37、to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its
38、 Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standa
39、rds developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of
40、the publications of the internationalstandardization bodies. 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 writ
41、ten permission from BSI. 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. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:01:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
链接地址:https://www.31doc.com/p-3740432.html