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1、BRITISH STANDARD BS EN 13523-13:2001 Coil coated metals Test methods Part 13: Resistance to accelerated ageing by the use of heat The European Standard EN 13523-13:2001 has the status of a British Standard ICS 17.040.20; 25.220.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LA
2、W BS EN 13523-13:2001 This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 BSI 06-2001 ISBN 0 580 37481 5 National foreword This British
3、Standard is the official English language version of EN 13523-13:2001. The UK participation in its preparation was entrusted to Technical Committee STI/27, Paint systems for metallic substrates, which has the responsibility to: A list of organizations represented on this committee can be obtained on
4、 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 Correspondence Index”, or by using the “Find” facility
5、 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 itself confer immunity from legal obligation
6、s. aid enquirers to understand the text; present to the responsible 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. Summary of pages This docume
7、nt comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE N
8、ORM EN 13523-13 April 2001 ICS 17.040.20; 25.220.60 English version Coil coated metals - Test methods - Part 13: Resistance to accelerated ageing by the use of heat Tles prlaques - Mthodes dessai - Partie 13: Rsistance au vieillissement acclr par la chaleur Bandbeschichtete Metalle - Prfverfahren -
9、Teil 13: Bestndigkeit gegen beschleunigte Alterung durch Wrmeeinwirkung This European Standard was approved by CEN on 18 February 2001. 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
10、standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other
11、 language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greec
12、e, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, 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 2001 CENAll rights of expl
13、oitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13523-13:2001 E Page 2 EN 13523-13:2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 139 “Paints and varnishes“, the secretariat of which is held by DIN. This European St
14、andard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2001, and conflicting national standards shall be withdrawn at the latest by October 2001. Annex A is normative. According to the CEN/CENELEC Internal Regul
15、ations, 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, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the U
16、nited Kingdom. 1 Scope This Part of EN 13523 describes the procedure for determining the behaviour of an organic coating on a metallic substrate (flat or bent specimens) when submitted to accelerated ageing by heating at a defined temperature for a defined period of time. It is not possible to test
17、heat resistance in such a way as to control all possible conditions of use. The aim of this test is therefore to furnish the basic test method for the effect of heat. NOTE Special applications may require that properties other than those mentioned in this Part of EN 13523 be checked. The test(s) to
18、be done should then be agreed between the interested parties. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed herea
19、fter. 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 referred to applies (including amendments). EN 13523-0 :
20、2001 Coil coated metals Test methods General introduction and list of test methods EN 13523-2 : 2001 Coil coated metals Test methods Part 2: Specular gloss EN 13523-3 : 2001 Coil coated metals Test methods Part 3: Colour difference Instrumental comparison EN 13523-7 : 2001 Coil coated metals Test me
21、thods Part 7: Resistance to cracking on bending (T-bend test) EN 23270 : 1991 Paint and varnishes and their raw materials Temperatures and humidities for conditioning and testing (ISO 3270:1984) IEC 60454-2 Specifications for pressure-sensitive adhesive tapes for electrical purposes Part 2: Methods
22、of test 3 Terms and definitions For the purposes of this standard the terms and definitions given in EN 13523-0:2001 apply. 4 Principle A test specimen is subjected to an elevated temperature during a defined period of time. Certain physical properties of the test specimen are then compared to those
23、 of a reference specimen which has been kept during the same period of time in ambient conditions of temperature. 5 Required supplementary information For any particular application, the test method specified in this Part of EN 13523 needs to be completed by supplementary information. The items of s
24、upplementary information are given in annex A. 6 Apparatus and materials 6.1 Air circulation oven, capable of being maintained at the chosen test temperature to 5 % (in C). 6.2 Apparatus as described in EN 13523-2:2001, EN 13523-3:2001 and EN 13523-7:2001. Page 3 EN 13523-13:2001 6.3 Transparent pre
25、ssure-sensitive adhesive tape, 25 mm wide, with an adhesion strength of (10 1) N per 25 mm width when tested in accordance with IEC 60454-2. 7 Sampling See EN 13523-0:2001. 8 Test specimens See EN 13523-0:2001. Two sets of specimens shall be taken: one set for the ageing tests and one set as referen
26、ce specimens. Test and reference specimens shall be taken from the same precoated sheet of coil coated metal in order to ensure a precise assessment of the property being evaluated. The number and size of all specimens shall be such that all required tests can be carried out. See 9.1.1, 9.2.2 and 9.
27、3.1 respectively. 9 Procedure 9.1 Procedure using flat specimens 9.1.1 Select two specimens for each test. 9.1.2 Place one specimen, the reference specimen, in the ambient storage conditions. For more accurate tests, as required for instance in case of dispute, the ambient temperature shall be (23 2
28、) C and the relative humidity (50 5) %, in accordance with EN 23270:1991. 9.1.3 Subject the other specimen, the test specimen, to accelerated ageing in the air circulation oven (6.1) at the specified or agreed test temperature and for the specified or agreed period of time (see annex A). 9.1.4 After
29、 the specified or agreed period of time remove the test specimen from the oven and condition it for at least 16 h under conditions as specified in 9.1.2. 9.1.5 Measure the gloss and colour of both the reference specimen and the aged test specimen, using the same apparatus and following the procedure
30、s described in EN 13523-2:2001 and EN 13523-3:2001 respectively. Calculate the gloss and colour differences. 9.2 Procedure using specimens that are to be aged after bending 9.2.1 Select and bend specimens as described in EN 13523-7:2001, i.e. by using the minimum bending radius that the material can
31、 tolerate without cracking being visible at 10x magnification. Assuming that Ta = a, where a represents the minimum radius and t the thickness of the substrate, prepare two sets of five specimens and bend them according to the following radii: Ta = aTb = a + 0,5 tTc = a + 1 tTd = a + 1,5 tTe = a + 2
32、,0 t Alternatively, bend the specimens using the conical wedge mandrel specified in EN 13523-7:2001, sub-clause 5.1.2. 9.2.2 Place one set of specimens, the reference specimens, in the ambient storage conditions. For more accurate tests, as required for instance in case of dispute, the ambient tempe
33、rature shall be (23 2) C and the relative humidity (50 5) %, in accordance with EN 23270:1991. 9.2.3 Subject the second set of specimens, the test specimens, to accelerated ageing in the air circulation oven (6.1) at the specified or agreed test temperature and for the specified or agreed period of
34、time (see annex A). 9.2.4 After the specified or agreed period of time remove the test specimens from the oven and condition them for at least 16 h under conditions as specified in 9.2.2. 9.2.5 Assess the reference specimens for cracking which may have occured during natural ageing, and measure loss
35、 of adhesion using the adhesive tape (6.3). 9.2.6 Assess the test specimens for cracking, and measure loss of adhesion using the adhesive tape (6.3). 9.3 Procedure using specimens that are to be bent after ageing 9.3.1 Select and age five flat specimens at the specified or agreed test temperature an
36、d for the specified or agreed period of time (see annex A). 9.3.2 Bend the reference specimens using the procedure described in 9.2.1 and place them in ambient storage conditions as described in 9.2.2. 9.3.3 Bend the aged test specimens to the same radii as determined in 9.2.1. 9.3.4 Assess both the
37、 reference specimens and the test specimens as described in 9.2.5 and 9.2.6 respectively. Page 4 EN 13523-13:2001 10 Expression of results Express the results as indicated in table 1. Table 1 - Expression of results Type of specimenPropertyObtained valuesDifference in values Reference specimen(s) Te
38、st specimen(s) Flat specimensSpecular gloss Colour Specimens to be aged after bending Resistance to cracking Ta Tb Tc Td Te conical wedge mandrel Loss of adhesionTa Tb Tc Td Te conical wedge mandrel Specimens to be bent after ageing Resistance to cracking Ta Tb Tc Td Te conical wedge mandrel Loss of
39、 adhesionTa Tb Tc Td Te conical wedge mandrel Page 5 EN 13523-13:2001 11 Precision No precision data are currently available. 12 Test report The test report shall contain at least the following information: a) all details necessary to identify the product tested; b) a reference to this Part of EN 13
40、523 (EN 13523-13); c) the items of supplementary information referred to in annex A; d) a reference to the international or national standard, product specification or other document supplying the information referred to in c); e) whether the specimens have been bent and if so, whether the bend was
41、carried out before or after ageing; f)the results of the test, as indicated in clause 10; g) any deviation from the test method specified; h) the date of the test. Page 6 EN 13523-13:2001 Annex A (normative) Required supplementary information The items of supplementary information listed in this ann
42、ex shall be supplied as appropriate to enable the method to be carried out. The information required should preferably be agreed between the interested parties and may be derived, in part or totally, from an international or national standard or other document related to the product under test. a) t
43、est temperature; b) duration of ageing at the test temperature. NOTE Test temperatures and periods of time are not restrictive and may be chosen according to the end use of the product. Page 7 EN 13523-13:2001 Bibliography EN 1396 : 1996 Aluminium and aluminium alloys Coil coated sheet and strip for
44、 general applications Specifications EN 10169-1 : 1996 Continuously organic coated (coil coated) steel flat products Part 1: General information (definitions, materials, tolerances, test methods) ENV 10169-2 : 1999 Continuously organic coated (coil coated) steel flat products Part 2: Products for bu
45、ilding exterior applications BS EN 13523-13:2001 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 international level. It is incorpora
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