1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 3102:2013Aerospace series Sealants Test methods Determinationof low-temperature flexibilityBS EN 3102:2013 BRITISH STANDARDNational forewordThis British Standard is the UK
2、implementation of EN 3102:2013. The UK participation in its preparation was entrusted to TechnicalCommittee ACE/65/-/3, Paints, Surface Finish and Protective T r e a t m e n t s f o r A e r o s p a c e P u r p o s e s .A list of organizations represented on this committee can be obtained on request
3、to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013ISBN 978 0 580 79250 2 ICS 49.025.99 Compliance with a British S
4、tandard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2013.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 3102:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NOR
5、M EN 3102 February 2013 ICS 49.025.99 English Version Aerospace series - Sealants - Test methods - Determination of low-temperature flexibility Srie arospatiale - Produits dtanchit - Methodes dessai - Dtermination de la flexibilit basse tempratureLuft- und Raumfahrt - Dichtmassen - Prfverfahren - Be
6、stimmung der Klteflexibilitt This European Standard was approved by CEN on 24 August 2012. 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 l
7、ists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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 und
8、er the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former
9、Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUR
10、OPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3102:2013: EBS EN 3102:2013EN 3102:2013 (E) 2 Contents Page Foreword 3 1
11、 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle of the method .4 5 Apparatus and accessories 4 5.1 Apparatus .4 5.2 Accessories 5 6 Test pieces .5 6.1 Dimensions of material strips (substrates) .5 6.2 Shape and manufacture 5 6.3 Curing and exposure methods .5 6.4 Number .6 7
12、 Procedure .6 8 Designation 6 9 Evaluation .7 10 Test report 7 BS EN 3102:2013EN 3102:2013 (E) 3 Foreword This document (EN 3102:2013) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance wit
13、h the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an ident
14、ical text or by endorsement, at the latest by August 2013, and conflicting national standards shall be withdrawn at the latest by August 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held re
15、sponsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fi
16、nland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 3102:2013EN 3102:2013 (E
17、) 4 1 Scope This European Standard defines the test method for the determination of the operability of a cured sealant during and after submission to a bending load at low temperatures (low-temperature flexibility). 2 Normative references The following documents, in whole or in part, are normatively
18、 referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2090, Aerospace series - Aluminium alloy AL-P2024-T3 - Clad sheet
19、 and strip 0,3 mm a 6 mm ISO 1817, Rubber, vulcanized Determination of the effect of liquids ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/ compression testing machines Verification and calibration of the force-measuring system 3 Terms and definition
20、s For the purposes of this document, the following definition applies: 3.1 Low-temperature flexibility The resistance of a sealant to cracking when submitted to a bending load at low temperatures using the test equipment as described in 5.1 4 Principle of the method The sealant is applied on a strip
21、 of material (substrate). After curing of the sealant, the test pieces are directly and/or after exposure to the test media submitted to a bending test at low temperatures. Following this bending test, the test pieces are visually inspected in order to detect any cracking. 5 Apparatus and accessorie
22、s 5.1 Apparatus Tensile testing machine (suitable for tensile and compression tests) in accordance with ISO 7500-1, category 1, allowing for a speed of 960 mm/min; mounting device adapted to the tensile testing machine for clamping of test pieces. The mounting device shall ensure the clamping of the
23、 test piece sideways from the sealant over a length of 75 mm. Installations allowing for the mounting of several test pieces simultaneously may also be used (an example of such a device is given in figure 1); load application device (adapted to the traverse of the tensile testing machine); cold cham
24、ber (adapted to the above-mentioned tensile testing machine, in which the required test temperature can be set (temperature tolerance: 1 C); oven with forced aeration (temperature tolerance: 1 C); spatula. BS EN 3102:2013EN 3102:2013 (E) 5 Key 1 Mounting device 2 Sealant 3 Material strip Free motion
25、: 20 mm (measured at the end of the test plate corresponding to approx. 15) Plate thickness: 1,0 mm Figure 1 Example of testing device 5.2 Accessories Cleaning agent, e.g. ethyl acetate; material strips (substrate) in material according to EN 2090, unless otherwise specified in the material standard
26、; test fluid no 1, in accordance with ISO 1817. 6 Test pieces 6.1 Dimensions of material strips (substrates) 1,0 mm 70 mm 150 mm 6.2 Shape and manufacture The test pieces shall be manufactured using material strips as per 6.1. Immediately prior to the manufacture of the test pieces, the material str
27、ips (substrates) shall be cleaned and, if required by the material standard, a primer shall be applied. Then a (2,5 0,2) mm thick coat of sealant shall be applied over a length of 100 mm and a width of 40 mm by means of a spatula on one side only and in the middle of the material strip (substrate).
28、NOTE An open mould may be used for the manufacture of test pieces. The manufacture of test pieces shall be completed within the application time. 6.3 Curing and exposure methods The test pieces shall be cured in accordance with the material standard and, if required, exposed according to the relevan
29、t method as defined in table 1. Testing or cooling to test temperature shall begin within 10 min after removal from the relevant test medium. BS EN 3102:2013EN 3102:2013 (E) 6 Table 1 Exposure conditions Method Medium Temperature Time A without exposure B dry heat (95 1) C (48 2) h C dry heat (120 1
30、) C 7 d 2 h D test fluid no 1 (60 1) C (120 2) h followed by test fluid no 1 (70 1) C (60 2) h followed by test fluid no 1 (80 1) C (6 0,25) h followed by 6 cycles aat dry heat (130 1) C (4 0,25) h dry heat (160 1) C (40 5) min. dry heat (180 2) C (60 5) min. aAfter each cycle the test pieces shall
31、be cooled to 40 C min. at a temperature of (23 2) C, before starting a new cycle with an exposure at 130 C. 6.4 Number Unless otherwise specified in the technical specification, two test pieces shall be used for each test and for each exposure. 7 Procedure The test piece shall be mounted in the clam
32、ping device over a length of 75 mm, avoiding any contact with the sealant. The temperature of the cold chamber shall be lowered to the temperature specified in the relevant material standard (unless otherwise specified: (55 3) C), and maintained for 2 h, following this the test piece shall be submit
33、ted to 130 flexure cycles of 20 mm (measured at the end of the test plate; this corresponds to an angle of 15). The test speed shall be 960 mm/min., so that one cycle is completed within 5 s. On completion of the bending test, the test pieces shall be brought to a temperature of (23 2) C and the sea
34、lant visually inspected in order to detect any cracks, detachment or other damage. 8 Designation EXAMPLE Description block Identity block LOW-TEMPERATURE FLEXIBILITY EN 3102-A Number of this standard Method of exposure (see table 1) BS EN 3102:2013EN 3102:2013 (E) 7 9 Evaluation Evaluation of whethe
35、r or not cracking, detachment or other damage has occurred. 10 Test report The test report shall include with reference to this standard: type and designation of product tested; number of production batch and date of manufacture; material used and conditioning of the material strip (substrate); curi
36、ng conditions and, if required, the type of medium exposure; test temperature; number of test, test pieces; test result; conditions deviating from this standard or specifically agreed; date of test; department and person responsible. This page deliberately left blankThis page deliberately left blank
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