1、Coil coated metals - Test methodsPart 21: Evaluation of outdoor exposed panelsBS EN 1352321:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13523-21 July 2017 ICS 25.220.60 Supersedes EN 13523-21:2010English Ve
2、rsion Coil coated metals - Test methods - Part 21: Evaluation of outdoor exposed panels Tles prlaques - Mthodes dessais - Partie 21 : valuation des panneaux exposs en extrieur Bandbeschichtete Metalle - Prfverfahren - Teil 21: Bewertung von freibewitterten Probenplatten This European Standard was ap
3、proved by CEN on 21 May 2017. 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 national
4、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 under the responsibility of a CEN member into its own language a
5、nd 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 Yugoslav Republic of Macedonia, France, Germany, Greece, Hung
6、ary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG
7、CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13523-21:2017 ENational forewordThis British Standard is the UK implementation of EN 1352321:2017. It supersedes
8、BS EN 1352321:2010, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/21, Paint systems and surface preparation for metallic substrates.A list of organizations represented on this committee can be obtained on request to its secretary.This publication
9、 does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 94048 4ICS 25.220.60Compliance with a British Standard cannot confer immunity from
10、legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 1352321:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13523-21 J
11、uly 2017 ICS 25.220.60 Supersedes EN 13523-21:2010English Version Coil coated metals - Test methods - Part 21: Evaluation of outdoor exposed panels Tles prlaques - Mthodes dessais - Partie 21 : valuation des panneaux exposs en extrieur Bandbeschichtete Metalle - Prfverfahren - Teil 21: Bewertung von
12、 freibewitterten Probenplatten This European Standard was approved by CEN on 21 May 2017. 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 li
13、sts 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 unde
14、r 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 Y
15、ugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION CO
16、MIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13523-21:2017 EBS EN 1352321:2017EN 13523-21:2017 (E)
17、 2 Contents Page European foreword . 3 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 Principle . 7 5 Apparatus and materials 7 6 Sampling . 7 7 Test panels . 7 8 Procedure. 7 8.1 General 7 8.2 Preparation . 8 8.3 Evaluation 8 8.3.1 General 8 8.3.2 Panel 1 (45 panel) . 8 8.3.3 Pane
18、l 2 (90 panel) . 9 8.3.4 Panel 3 (5 panel) . 10 9 Expression of results . 11 10 Precision 11 11 Test report 11 Bibliography . 17 BS EN 1352321:2017EN 13523-21:2017 (E) 3 European foreword This document (EN 13523-21:2017) has been prepared by Technical Committee CEN/TC 139 “Paints and varnishes”, the
19、 secretariat of which is held by DIN. 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 January 2018, and conflicting national standards shall be withdrawn at the latest by January 2018. Attention i
20、s drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13523-21:2010. The main changes compared to the previous edition are: a) a “terms an
21、d definitions” clause has been added containing all terms and definitions from EN ISO 4628-8 and a definition for edge; b) “corrosion” and “delamination” was changed to “corroded area” and “delaminated area”, where appropriate; c) the first inspection after 6 months was deleted; d) the inspection of
22、 defects using a 10 magnification was amended; e) a reference to EN ISO 4628-8 was amended for evaluation of delamination and corrosion around the scribe; f) the text has been revised editorially and the normative references have been updated. The EN 13523 series, Coil coated metals Test methods, co
23、nsists of the following parts: Part 0: General introduction Part 1: Film thickness Part 2: Gloss Part 3: Colour difference Instrumental comparison Part 4: Pencil hardness Part 5: Resistance to rapid deformation (impact test) Part 6: Adhesion after indentation (cupping test) Part 7: Resistance to cra
24、cking on bending (T-bend test) Part 8: Resistance to salt spray (fog) Part 9: Resistance to water immersion BS EN 1352321:2017EN 13523-21:2017 (E) 4 Part 10: Resistance to fluorescent UV radiation and water condensation Part 11: Resistance to solvents (rubbing test) Part 12: Resistance to scratching
25、 Part 13: Resistance to accelerated ageing by the use of heat Part 14: Chalking (Helmen method) Part 15: Metamerism Part 16: Resistance to abrasion Part 17: Adhesion of strippable films Part 18: Resistance to staining Part 19: Panel design and method of atmospheric exposure testing Part 20: Foam adh
26、esion Part 21: Evaluation of outdoor exposed panels Part 22: Colour difference Visual comparison Part 23: Resistance to humid atmospheres containing sulfur dioxide Part 24: Resistance to blocking and pressure marking Part 25: Resistance to humidity Part 26: Resistance to condensation of water Part 2
27、7: Resistance to humid poultice (Cataplasm test) Part 29: Resistance to environmental soiling (Dirt pick-up and striping) According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium
28、, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, S
29、witzerland, Turkey and the United Kingdom. BS EN 1352321:2017EN 13523-21:2017 (E) 5 1 Scope This part of the EN 13523 series specifies the procedure for evaluating the behaviour of an organic coating on a metallic substrate during and after outdoor exposure. Panel design, preparation and the procedu
30、re for outdoor exposure are performed in accordance with EN 13523-19. After washing of the panel, some dirt can remain on the panel. This remaining dirt can influence the accuracy and precision of readings of gloss and colour, performed on exposed panels, although carried out in accordance with the
31、standards. Unlike other precise measurements, the objective of this European Standard is to report on trends in the corrosion and/or paint degradation behaviour of coil coated panels. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and
32、 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 1396, Aluminium and aluminium alloys - Coil coated sheet and strip for general applications - Spe
33、cifications EN 10169, Continuously organic coated (coil coated) steel flat products - Technical delivery conditions EN 13523-0, Coil coated metals - Test methods - Part 0: General introduction EN 13523-2, Coil coated metals - Test methods - Part 2: Gloss EN 13523-3, Coil coated metals - Test methods
34、 - Part 3: Colour difference - Instrumental comparison EN 13523-14, Coil coated metals - Test methods - Part 14: Chalking (Helmen method) EN 13523-19, Coil coated metals - Test methods - Part 19: Panel design and method of atmospheric exposure testing EN ISO 4628-2, Paints and varnishes - Evaluation
35、 of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 2: Assessment of degree of blistering (ISO 4628-2) EN ISO 4628-3, Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of def
36、ects, and of intensity of uniform changes in appearance - Part 3: Assessment of degree of rusting (ISO 4628-3) EN ISO 4628-4, Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 4: Assess
37、ment of degree of cracking (ISO 4628-4) EN ISO 4628-5, Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 5: Assessment of degree of flaking (ISO 4628-5) EN ISO 4628-8:2012, Paints and v
38、arnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 8: Assessment of degree of delamination and corrosion around a scribe or other artificial defect (ISO 4628-8:2012) BS EN 1352321:2017EN 13523-21:20
39、17 (E) 6 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13523-0 and the following apply. 3.1 holiday absence of a paint film from certain areas of a coated substrate SOURCE: EN ISO 4628-8:2012, 3.1 3.2 artificial defect holiday through a coating, del
40、iberately introduced in order to expose the underlying metal substrate prior to exposure to a corrosive environment SOURCE: EN ISO 4628-8:2012, 3.2 3.2.1 circular defect circular holiday through a coating, deliberately introduced in order to expose the underlying metal substrate prior to exposure in
41、 a corrosive environment Source: EN ISO 4628-8:2012, 3.3 3.2.2 scribe linear holiday through a coating, deliberately introduced in order to expose the underlying metal substrate prior to exposure in a corrosive environment SOURCE: EN ISO 4628-8:2012, 3.6 3.2.3 edge unprotected cut edge, in order to
42、expose the underlying metal substrate prior to exposure in a corrosive environment 3.3 corroded area area around a defect where the substrate has been attacked by corrosion SOURCE: EN ISO 4628-8:2012, 3.4 3.4 delaminated area area around a defect where loss of adhesion of a coating from a substrate
43、or an underlying coating has occurred SOURCE: EN ISO 4628-8:2012, 3.5 BS EN 1352321:2017EN 13523-21:2017 (E) 7 4 Principle The behaviour of the test panels exposed in accordance with EN 13523-19 is evaluated. Any degradation in the relevant area is reported, using the relevant parts of the EN 13523
44、series and appropriate EN ISO Standards. In cases where the inspection area is limited (e.g. at screws and bends), the evaluation method (see the EN ISO 4628- series) is replaced by an easier and more suitable measurement of the degradation in millimetres. Where possible, the results of symmetrical
45、areas, e.g. left and right edges, are combined and the average value is reported. The inspection of the 45 panel (panel 1) will focus on paint degradation, whereas the 90 panel (panel 2) and the 5 panel (panel 3) are mainly evaluated for corrosion. NOTE 1 Panel designations (1, 2, 3) are as defined
46、in EN 1352319. NOTE 2 Due to restrictions in the available flat area, the number of recommended readings might vary from other parts of the EN 13523 series and relevant EN ISO Standards. It is strongly recommended to take a photograph of each exposed panel at each inspection. 5 Apparatus and materia
47、ls 5.1 Gloss meter, in accordance with EN 13523-2. 5.2 Apparatus for colour measurement, in accordance with EN 13523-3. 5.3 Apparatus for measurement of chalking, in accordance with EN 13523-14. 5.4 Washing solution, containing 0,5 % (by mass) of a mild non-reactive detergent (pH 6 to 7) in water. 5
48、.5 Cloth or sponge, non-abrasive and smooth. 6 Sampling In accordance with EN 13523-0. 7 Test panels In accordance with EN 13523-0. 8 Procedure 8.1 General Evaluate the coating properties at ambient temperature. The panels shall be inspected yearly and for a minimum duration as specified in EN 1396
49、or EN 10169. Colour measurements on metallics as well as gloss and colour measurements on textured and embossed surfaces are only indicative. BS EN 1352321:2017EN 13523-21:2017 (E) 8 8.2 Preparation 8.2.1 Ensure that results of the measurements of gloss in accordance with EN 13523-2 and colour in accordance with EN 13523-3 are available before exposure of the test panels. When using reference panels, these panels shall be kept in an envelope and not exposed to a
