SIST EN 13523-21:2017
(Main)Coil coated metals - Test methods - Part 21: Evaluation of outdoor exposed panels
Coil coated metals - Test methods - Part 21: Evaluation of outdoor exposed panels
This part of EN 13523 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 procedure 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 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.
Bandbeschichtete Metalle - Prüfverfahren - Teil 21: Bewertung von freibewitterten Probenplatten
Dieser Teil der Normenreihe EN 13523 legt das Bewerten einer organischen Beschichtung auf einem metallischen Substrat während oder nach einer Freibewitterung fest. Die Maße der Probenplatte, Vorbereitung und Durchführung der Freibewitterung müssen EN 13523 19 entsprechen.
Nach dem Waschen der Probenplatten kann etwas Schmutz auf der Probenplatte verbleiben. Bei Glanz- und Farbmessungen an bewitterten Platten, obwohl normgerecht durchgeführt, ist deshalb nicht die gleiche Genauigkeit und Präzision sichergestellt. Im Unterschied zu anderen genauen Messungen soll diese Europäische Norm Tendenzen im Korrosions- und Abbauverhalten von Beschichtungen auf band-beschichteten Platten ermitteln.
Tôles prélaquées - Méthodes d'essais - Partie 21 : Évaluation des panneaux exposés en extérieur
La présente partie de l’EN 13523 spécifie le mode opératoire pour évaluer le comportement d’un revêtement organique sur un subjectile métallique durant et après exposition à l’extérieur. La conception des panneaux, la préparation et le mode opératoire pour l’exposition en extérieur sont à réaliser conformément à l’EN 13523-19.
Après lavage du panneau, il est possible que de la saleté reste sur le panneau. Cette saleté résiduelle peut influer sur la précision et la fidélité des mesures de brillant et de couleur réalisées sur les panneaux exposés, même si celles-ci sont effectuées conformément aux normes. Contrairement à d’autres mesures fidèles, le but de la présente Norme européenne est de rendre compte des tendances observées concernant la corrosion et/ou la dégradation de la peinture des panneaux prélaqués.
Prevlečene kovine, ki se navijajo - Preskusne metode - 21. del: Vrednotenje preskušancev, izpostavljenih zunanjemu okolju
Ta del standarda EN 13523 določa postopek za vrednotenje obnašanja organske prevleke na kovinski podlagi v času izpostavljenosti zunanjemu okolju in po njej. Načrtovanje, pripravo in postopek izpostavljanja preskušancev zunanjemu okolju je treba izvesti v skladu s standardom EN 13523-19.
Po spiranju lahko na preskušancu ostane nekaj umazanije. Ta preostala umazanija lahko vpliva na točnost in natančnost odčitkov sijaja in barve, opravljenih na izpostavljenih preskušancih, čeprav se opravijo v skladu s standardi. Za razliko od drugih natančnih meritev je namen tega evropskega standarda podati poročilo o trendih obnašanja korozije in/ali degradacije barv prevlečenih preskušancev, ki se navijajo.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.UHGQRWHQMHBandbeschichtete Metalle - Prüfverfahren - Teil 21: Bewertung von freibewitterten ProbenplattenTôles prélaquées - Méthodes d'essais - Partie 21 : Évaluation des panneaux exposés en extérieurCoil coated metals - Test methods - Part 21: Evaluation of outdoor exposed panels25.220.60Organske prevlekeOrganic coatingsICS:Ta slovenski standard je istoveten z:EN 13523-21:2017SIST EN 13523-21:2017en,fr,de01-december-2017SIST EN 13523-21:2017SLOVENSKI
STANDARDSIST EN 13523-21:20111DGRPHãþD
SIST EN 13523-21:2017
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13523-21
July
t r s y ICS
t wä t t rä x r Supersedes EN
s u w t uæ t sã t r s rEnglish Version
Coil coated metals æ Test methods æ Part
t sã Evaluation of outdoor exposed panels Tôles prélaquées æ Méthodes d 5essais æ Partie
t s ã Évaluation des panneaux exposés en extérieur
Bandbeschichtete Metalle æ Prüfverfahren æ Teil
t sã Bewertung von freibewitterten Probenplatten This European Standard was approved by CEN on
t s May
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s u w t uæ t sã t r s y ESIST EN 13523-21:2017
EN 13523-21:2017 (E) 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 Panel 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
SIST EN 13523-21:2017
EN 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 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 is 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 and 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 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, 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 SIST EN 13523-21:2017
EN 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 — 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 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 organisations 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13523-21:2017
EN 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 procedure 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 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 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 - Specifications 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 - 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 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 defects, 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: Assessment 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 varnishes - 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) SIST EN 13523-21:2017
EN 13523-21:2017 (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, deliberately 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 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 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 or an underlying coating has occurred [SOURCE: EN ISO 4628-8:2012, 3.5] SIST EN 13523-21:2017
EN 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 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 su
...
SLOVENSKI STANDARD
oSIST prEN 13523-21:2016
01-julij-2016
3UHYOHþHQHNRYLQHNLVHQDYLMDMR3UHVNXVQHPHWRGHGHO 9UHGQRWHQMH
SUHVNXãDQFHYL]SRVWDYOMHQLK]XQDQMHPXRNROMX
Coil coated metals - Test methods - Part 21: Evaluation of outdoor exposed panels
Bandbeschichtete Metalle - Prüfverfahren - Teil 21: Bewertung von freibewitterten
Probenplatten
Tôles prélaquées - Méthodes d'essais - Partie 21 : Évaluation des panneaux exposés en
extérieur
Ta slovenski standard je istoveten z: prEN 13523-21
ICS:
25.220.60 Organske prevleke Organic coatings
oSIST prEN 13523-21:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 13523-21:2016
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oSIST prEN 13523-21:2016
DRAFT
EUROPEAN STANDARD
prEN 13523-21
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2016
ICS 25.220.60 Will supersede EN 13523-21:2010
English Version
Coil coated metals - Test methods - Part 21: Evaluation of
outdoor exposed panels
Tôles prélaquées - Méthodes d'essais - Partie 21 : Bandbeschichtete Metalle - Prüfverfahren - Teil 21:
Évaluation des panneaux exposés en extérieur Bewertung von freibewitterten Probenplatten
This draft European Standard is submitted to CEN members for enquiry. 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
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13523-21:2016 E
worldwide for CEN national Members.
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oSIST prEN 13523-21:2016
prEN 13523-21:2016 (E)
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 7
5 Apparatus and materials . 8
6 Sampling . 8
7 Test panels . 8
8 Procedure. 8
8.1 General . 8
8.2 Preparation . 8
8.3 Evaluation . 9
8.3.1 General . 9
8.3.2 Panel 1 (45° panel) . 9
8.3.3 Panel 2 (90° panel) . 9
8.3.4 Panel 3 (5° panel) . 10
9 Expression of results . 11
10 Precision . 11
11 Test report . 12
Bibliography . 16
2
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oSIST prEN 13523-21:2016
prEN 13523-21:2016 (E)
European foreword
This document (prEN 13523-21:2016) 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 CEN Enquiry.
This document will supersede EN 13523-21:2010.
The main changes compared to the previous edition are:
a) a “terms and 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 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, 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
3
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oSIST prEN 13523-21:2016
prEN 13523-21:2016 (E)
— 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 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)
4
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oSIST prEN 13523-21:2016
prEN 13523-21:2016 (E)
Introduction
Pressure generated within a coil or a stack of sheets can affect the coating surface and cause marks of gloss
transfer, plasticizer migration, etc. and even blocking/sticking.
5
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oSIST prEN 13523-21:2016
prEN 13523-21:2016 (E)
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 procedure 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 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 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 - Specifications
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 - 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 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 defects, 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: Assessment 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, Paints and varnishes - 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)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13523-0 and the following apply.
6
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oSIST prEN 13523-21:2016
prEN 13523-21:2016 (E)
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, deliberately 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 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, deliberately introduced in order to 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 or an underlying coating has
occurred
[SOURCE: EN ISO 4628-8:2012, 3.5]
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 series and appropriate EN ISO
Standards.
In cases where the inspection area is limited (e.g. at screws and bends), the evaluation method described in
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 areas, e.g. left and right edges, are combined and the average
value is reported.
7
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oSIST prEN 13523-21:2016
prEN 13523-21:2016 (E)
The inspection of the 45° panel (panel 1) will focus on paint degradation, wher
...
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