SIST EN 13523-7:2014
(Main)Coil coated metals - Test methods - Part 7: Resistance to cracking on bending (T-bend test)
Coil coated metals - Test methods - Part 7: Resistance to cracking on bending (T-bend test)
EN 13523-7 specifies the procedure for determining the resistance to cracking of an organic coating on a metallic substrate when bent through 135° to 180°. The degree of adhesion may also be evaluated. Both folding and mandrel methods are considered. The folding method is more often used for practical purposes but where more precise determinations are required, the mandrel method is recommended. The cylindrical bend method may also be used for a pass/fail decision by using an agreed mandrel. The choice of the appropriate test method is limited by the thickness and/or the hardness of the substrate. The feasibility of the test depends on the type and thickness of the substrate. During the procedure, the mandrel should not deform.
Bandbeschichtete Metalle - Prüfverfahren - Teil 7: Widerstandsfähigkeit gegen Rissbildung beim Biegen (T-Biegeprüfung)
Dieser Teil von EN 13523 legt das Verfahren zum Bestimmen der Widerstandsfähigkeit gegen Rissbildung einer organischen Beschichtung auf einem metallischen Substrat fest, wenn dieses um 135° bis 180° gebogen wird. Die Haftfestigkeit kann ebenfalls bewertet werden.
Es werden sowohl Faltverfahren als auch Dornbiegeverfahren berücksichtigt. Das Faltverfahren wird häufiger für praktische Zwecke verwendet. Wenn jedoch genauere Bestimmungen gefordert werden, wird das Dornbiegeverfahren empfohlen.
Das Dornbiegeverfahren mit zylindrischem Dorn kann auch für eine ja/nein-Entscheidung angewendet werden, indem ein vereinbarter Dorn verwendet wird.
Die Wahl des geeigneten Prüfverfahrens wird durch die Dicke und/oder die Härte des Substrates eingeschränkt.
ANMERKUNG Die Durchführbarkeit der Prüfung hängt von der Art und der Dicke des Substrates ab. Während der Durchführung sollte sich der Dorn nicht verformen.
Tôles prélaquées - Méthodes d'essai - Partie 7 : Résistance à la fissuration par pilage (essai de pilage en T)
La présente partie de l'EN 13523 décrit la méthode de détermination de la résistance à la fissuration d'un revêtement organique appliqué sur un subjectile métallique lorsqu'il est plié selon un angle de 135° à 180°. Il est également possible d'évaluer le degré d'adhérence.
Les deux méthodes, par pliage et au mandrin, sont prises en compte. Le pliage est, pour des raisons pratiques, la méthode la plus couramment utilisée. Cependant, pour des déterminations plus précises, il est recommandé d'utiliser la méthode au mandrin.
La méthode de pliage cylindrique, avec un mandrin convenu, peut également être appliquée afin de déterminer si un essai est satisfaisant ou non.
Le choix de la méthode d'essai appropriée est limité par l'épaisseur et/ou la dureté du subjectile.
NOTE La faisabilité de l'essai dépend du type et de l'épaisseur du subjectile. Il convient que le mandrin ne se déforme pas au cours de l’opération.
Prevlečene kovine, ki se navijajo - Preskusne metode - 7. del: Odpornost proti pokanju pri upogibu (T-upogibni preskus)
Standard EN 13523-7 določa postopek za določanje odpornosti proti pokanju organske prevleke na kovinski podlagi pri upogibu od 135° do 180°. Oceni se lahko tudi stopnjo sprijemljivosti. Upoštevani sta metoda z upogibom in metoda upogibanja z vretenom. Metoda z upogibom se zaradi praktičnih razlogov bolj pogosto uporablja, kjer pa so potrebne natančnejše meritve, je priporočena metoda z vretenom. Uporabi se lahko tudi metoda upogibanja na valjih, s katero se ob uporabi izbranega vretena poda oceno o uspešnosti ali neuspešnosti preskusa. Izbira primerne preskusne metode temelji na debelini in/ali trdoti podlage. Izvedljivost preskusa je odvisna od vrste in debeline podlage. Med postopkom se vreteno ne bi smelo deformirati.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bandbeschichtete Metalle - Prüfverfahren - Teil 7: Widerstandsfähigkeit gegen Rissbildung beim Biegen (T-Biegeprüfung)Tôles prélaquées - Méthodes d'essai - Partie 7 : Résistance à la fissuration par pilage (essai de pilage en T)Coil coated metals - Test methods - Part 7: Resistance to cracking on bending (T-bend test)25.220.60Organske prevlekeOrganic coatings17.040.20Lastnosti površinProperties of surfacesICS:Ta slovenski standard je istoveten z:EN 13523-7:2014SIST EN 13523-7:2014en,fr,de01-september-2014SIST EN 13523-7:2014SLOVENSKI
STANDARDSIST EN 13523-7:20021DGRPHãþD
SIST EN 13523-7:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13523-7
June 2014 ICS 25.220.60 Supersedes EN 13523-7:2001English Version
Coil coated metals - Test methods - Part 7: Resistance to cracking on bending (T-bend test)
Tôles prélaquées - Méthodes d'essai - Partie 7: Résistance à la fissuration par pliage (essai de pliage en T)
Bandbeschichtete Metalle - Prüfverfahren - Teil 7: Widerstandsfähigkeit gegen Rissbildung beim Biegen (T-Biegeprüfung) This European Standard was approved by CEN on 7 May 2014.
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 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 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 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
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13523-7:2014 ESIST EN 13523-7:2014
EN 13523-7:2014 (E) 2 Contents Page Foreword .3 1 Scope .5 2 Normative references .5 3 Terms and definitions .5 4 Principle .5 5 Apparatus .6 6 Sampling . 11 7 Test panels . 11 8 Procedure . 12 8.1 General . 12 8.2 Methods for practical (industrial) use . 12 8.2.1 Folding method . 12 8.2.2 Mandrel method . 13 8.3 Method for laboratory purposes . 14 9 Expression of results . 14 10 Precision . 14 11 Test report . 14 Bibliography . 16
SIST EN 13523-7:2014
EN 13523-7:2014 (E) 3 Foreword This document (EN 13523-7:2014) has been prepared by Technical Committee CEN/TC 139 “Paints and varnishes”, the 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 December 2014, and conflicting national standards shall be withdrawn at the latest by December 2014. 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 responsible for identifying any or all such patent rights. This document supersedes EN 13523-7:2001. The main technical changes are: a) details on the brands of the tape used were added; b) a remark on conditioning was added; c) in addition to use a × 10 magnifying glass, the evaluation shall be carried out with normal corrected vision. EN 13523, Coil coated metals — Test methods, consists 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 cracking on bending (T-bend test) — Part 8: Resistance to salt spray (fog) — Part 9: Resistance to water immersion — Part 10: Resistance to fluorescent UV radiation and water condensation — Part 11: Resistance to solvents (rubbing test) — Part 12: Resistance to scratching — Part 13: Resistance to accelerated ageing by the use of heat — Part 14: Chalking (Helmen method) SIST EN 13523-7:2014
EN 13523-7:2014 (E) 4 — 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 adhesion — 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 27: 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 organizations of the following countries are bound to implement this European Standard: Austria, Belgium, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13523-7:2014
EN 13523-7:2014 (E) 5 1 Scope This part of EN 13523 specifies the procedure for determining the resistance to cracking of an organic coating on a metallic substrate when bent through 135° to 180°. The degree of adhesion may also be evaluated. Both folding and mandrel methods are considered. The folding method is more often used for practical purposes but where more precise determinations are required, the mandrel method is recommended. The cylindrical bend method may also be used for a pass/fail decision by using an agreed mandrel. The choice of the appropriate test method is limited by the thickness and/or the hardness of the substrate. The feasibility of the test depends on the type and thickness of the substrate. During the procedure, the mandrel should not deform. 2 Normative references The following documents, in whole or in part, are normatively 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 13523-0:2014, Coil coated metals — Test methods — Part 0: General introduction EN 23270, Paints and varnishes and their raw materials — Temperatures and hum
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bandbeschichtete Metalle - Prüfverfahren - Teil 7: Widerstandsfähigkeit gegen Rissbildung beim Biegen (T-Biegeprüfung)Tôles prélaquées - Méthodes d'essai - Partie 7 : Résistance à la fissuration par pilage (essai de pilage en T)Coil coated metals - Test methods - Part 7: Resistance to cracking on bending (T-bend test)25.220.60Organske prevlekeOrganic coatings17.040.20Lastnosti površinProperties of surfacesICS:Ta slovenski standard je istoveten z:FprEN 13523-7kSIST FprEN 13523-7:2014en,fr,de01-marec-2014kSIST FprEN 13523-7:2014SLOVENSKI
STANDARD
kSIST FprEN 13523-7:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 13523-7
February 2014 ICS 25.220.60 Will supersede EN 13523-7:2001English Version
Coil coated metals - Test methods - Part 7: Resistance to cracking on bending (T-bend test)
Tôles prélaquées - Méthodes d'essai - Partie 7 : Résistance à la fissuration par pilage (essai de pilage en T)
Bandbeschichtete Metalle - Prüfverfahren - Teil 7: Widerstandsfähigkeit gegen Rissbildung beim Biegen (T-Biegeprüfung) This draft European Standard is submitted to CEN members for formal vote. It has been drawn up by the Technical Committee CEN/TC 139.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 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, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 13523-7:2014 EkSIST FprEN 13523-7:2014
FprEN 13523-7:2014 (E) 2 Contents Page Foreword .3 1 Scope .5 2 Normative references .5 3 Terms and definitions .5 4 Principle .5 5 Apparatus .6 6 Sampling . 11 7 Test panels . 12 8 Procedure . 12 8.1 General . 12 8.2 Methods for practical (industrial) use . 12 8.2.1 Folding method . 12 8.2.2 Mandrel method . 14 8.3 Method for laboratory purposes . 14 9 Expression of results . 14 10 Precision . 14 11 Test report . 15 Bibliography . 16
kSIST FprEN 13523-7:2014
FprEN 13523-7:2014 (E) 3 Foreword This document (FprEN 13523-7:2014) has been prepared by Technical Committee CEN/TC 139 “Paints and varnishes”, the secretariat of which is held by DIN. This document is currently submitted to the Formal Vote. This document will supersede EN 13523-7:2001. The main technical changes are: a) details on the brands of the tape used were added; b) a remark on preconditioning was added; c) in addition to use a × 10 magnifying glass, the evaluation shall be carried out with normal corrected vision. EN 13523, Coil coated metals — Test methods, consists 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 cracking on bending (T-bend test) — Part 8: Resistance to salt spray (fog) — Part 9: Resistance to water immersion — Part 10: Resistance to fluorescent UV radiation and water condensation — Part 11: Resistance to solvents (rubbing test) — Part 12: Resistance to scratching — 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 kSIST FprEN 13523-7:2014
FprEN 13523-7:2014 (E) 4 — Part 18: Resistance to staining — Part 19: Panel design and method of atmospheric exposure testing — Part 20: Foam adhesion — 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 27: Resistance to humid poultice (Cataplasm test) — Part 29: Resistance to environmental soiling (Dirt pick-up and striping) kSIST FprEN 13523-7:2014
FprEN 13523-7:2014 (E) 5 1 Scope This part of EN 13523 specifies the procedure for determining the resistance to cracking of an organic coating on a metallic substrate when bent through 135° to 180°. The degree of adhesion may also be evaluated. Both folding and mandrel methods are considered. The folding method is more often used for practical purposes but where more precise determinations are required, the mandrel method is recommended. The cylindrical bend method may also be used for a pass/fail decision by using an agreed mandrel. The choice of the appropriate test method is limited by the thickness and/or the hardness of the substrate. The feasibility of the test depends on the type and thickness of the substrate. During the procedure, the mandrel should not deform. 2 Normative references The following documents, in whole or in part, are normatively 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. prEN 13523-0:2013, Coil coated metals — Test methods — Part 0: General introduction EN 23270, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and testing (ISO 3270) EN 60454-2, Pressure-sensitive adhesive tapes for electrical purposes — Part 2: Methods of test (IEC 60454-2) 3 Terms and definitions For the purposes of this document, the terms and d
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