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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-515:2005 Elements of electrical and optical connection Test methods Part 515: Hydrolytic stability The European Standard EN 2591-515:2005 has the status of a British Standard ICS 49.060 ? Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:05:54 GMT
2、+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2591-515:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 10 February 2006 BSI 10 February 2006 ISBN 0 580 47802 5 National foreword This British Standard is the official English language vers
3、ion of EN 2591-515:2005. 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 to understand the text; present to the
4、 responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained
5、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 Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of th
6、e BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary
7、 of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffiel
8、dun sheffieldun, na, Thu Nov 02 18:05:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2591-515 October 2005 ICS 49.060 English Version Aerospace series - Elements of electrical and optical connection - Test methods - Part 515: Hydrolytic stability S
9、rie arospatiale - Organes de connexion lectrique et optique - Mthodes dessais - Partie 515 : Stabilit hydrolytique Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prfverfahren - Teil 515: Hydrolytische Stabilitt This European Standard was approved by CEN on 19 September 2005. CE
10、N 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 national standards may be obtained on app
11、lication 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 and notified to the Central Secretariat has
12、 the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slo
13、vakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwi
14、de for CEN national Members. Ref. No. EN 2591-515:2005: E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:05:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-515:2005 2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Preparation of specimens 4 4 Details 4 5 Test method
15、.4 6 Requirement 5 7 Final measurement (if applicable)5 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:05:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-515:2005 3 Foreword This European Standard (EN 2591-515:2005) has been prepared by the European Association of Aerospace Manufact
16、urers - Standardization (AECMA-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 and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This Europe
17、an Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2006, and conflicting national standards shall be withdrawn at the latest by April 2006. Attention is drawn to the possibility that some of the elements
18、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 Regulations, the national standards organizations of the following countries are bound to implement this Europea
19、n Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Cop
20、y: sheffieldun sheffieldun, na, Thu Nov 02 18:05:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 1 Scope This standard specifies a test method for determination of the relative rate of absorption of water by plastic or composite material. Its derived from ASTM D 570 - 98 and it shall be used togethe
21、r with EN 2591-100. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 259
22、1-100, Aerospace series Elements of electrical and optical connection Test methods Part 100: General. EN 2591-101, Aerospace series Elements of electrical and optical connection Test methods Part 101: Visual examination. ASTM D 570 98, Standard Test Method for Water Absorption of Plastics. 1) 3 Prep
23、aration of specimens According to technical specification of product. 4 Details Method: A, B or C. Maximum percentage increased weight and/or soluble material lost. 5 Test method Three different test methods can be used according to the product standard requirement. 5.1 Conditioning The specimen sha
24、ll be dried in an oven for 24 h at (50 3) C, cooled in a desiccator and immediately weighed to the nearest 0,001 g. 5.2 Method A: Long-term immersion to determine the total water absorbed when substantially saturated The conditioned specimens shall be placed in a container of distilled water maintai
25、ned at temperature of (23 1) C, and shall rest on edge and be entirely immersed. At the end of 24 h they shall be removed from the water, wiped free of surface moisture with a dry cloth, weighed to the nearest 0,001 g immediately, and then replaced in the water. The weightings shall be repeated at t
26、he end of the first week and every two weeks thereafter until the increase in weight per two-week period, as shown by three consecutive weightings, 1) Published by: ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959 USA EN 2591-515:2005 Licensed Copy: sheffield
27、un sheffieldun, na, Thu Nov 02 18:05:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 averages less than 1 % of the total increase in weight or 5 mg, whichever is greater, the specimen shall then be considered substantially saturated. The difference between the substantially saturated weight and the
28、dry weight shall be considered as the water absorbed when substantially saturated. 5.3 Method B: Two hours boiling water immersion The conditioned specimens shall be placed in a container of boiling distilled water, and shall be supported on edge and be entirely immersed. At the end of (120 4) min,
29、the specimens shall be removed from the water, and cooled in distilled water maintained at room temperature. After (15 1) min, the specimens shall be removed from the water, one at a time, all surface water removed with a dry cloth, and the specimens weighed to the nearest 0,001 g immediately. 5.4 M
30、ethod C: One half hour boiling water immersion For all thickness of materials having a relatively high rate of absorption and for thin specimens of other materials which shows a significant weight increase in one half hour, the specimens shall be tested as described in 5.3, except that the time of i
31、mmersion shall be reduced to (30 1) min. 5.5 Reconditioning The specimens, after immersion, shall be weighed, and then reconditioned for the same time and temperature as used in the original drying period. They shall then be cooled in a desiccator and immediately reweighed.If the reconditioned weigh
32、t is lower than the conditioned weight, the difference shall be considered as water-soluble matter lost during the immersion test. For such materials, the water-absorption value shall be taken as the sum of the increase in weight on immersion and of the weight of the water-soluble matter. 6 Requirem
33、ent The percentage of water absorbed is the sum of the values calculated below and shall be in accordance with the values specified in the product standard. 6.1 Percentage increase weight Percentage increase in weight during immersion, calculated to the nearest 0,01 % as follows: Increase in weight,
34、 % = weightdConditione weightdconditione weightWet- 100 6.2 Percentage soluble material lost Percentage of soluble material lost during immersion, if determined, calculated to the nearest 0,01 % as follows: Soluble matter lost, % = weightdConditione weightnedreconditio weightdConditione- 100 7 Final
35、 measurement (if applicable) Visual examination (see EN 2591-101). EN 2591-515:2005 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:05:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2591-515:2005 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the ind
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