EN 13523-23:2023
(Main)Coil coated metals - Test methods - Part 23: Resistance to humid atmospheres containing sulfur dioxide
Coil coated metals - Test methods - Part 23: Resistance to humid atmospheres containing sulfur dioxide
This document describes the procedure for determining the resistance of an organic coating on a metallic substrate to humid atmospheres containing sulfur dioxide.
Bandbeschichtete Metalle - Prüfverfahren - Teil 23: Beständigkeit gegen feuchte, Schwefeldioxid enthaltende Atmosphären
Dieses Dokument legt das Verfahren zum Bestimmen der Beständigkeit einer organischen Beschichtung auf einem metallischen Substrat gegen feuchte, Schwefeldioxid enthaltende Atmosphären fest.
Tôles prélaquées - Méthodes d'essai - Partie 23 : Résistance à des atmosphères humides contenant du dioxyde de soufre
Le présent document décrit la méthode de détermination de la résistance d’un revêtement organique appliqué sur un subjectile métallique à des atmosphères humides contenant du dioxyde de soufre.
Prevlečene kovine, ki se navijajo - Preskusne metode - 23. del: Odpornost proti vlažni atmosferi, ki vsebuje žveplov dioksid
Ta del standarda EN 13523 opisuje postopek za določanje barvne stabilnosti organske prevleke na kovinski podlagi ob izpostavljenosti vlažni atmosferi, ki vsebuje žveplov dioksid. Ta metoda je bila zasnovana za pospešeno preskušanje oz. ocenjevanje barvne obstojnosti prevlečenih kovin, ki se navijajo, v atmosferi, ki vsebuje žveplov dioksid (običajno za industrijske atmosfere).
General Information
- Status
- Published
- Publication Date
- 17-Oct-2023
- Technical Committee
- CEN/TC 139 - Paints and varnishes
- Drafting Committee
- CEN/TC 139/WG 9 - Testing of coil coated metals
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 18-Oct-2023
- Due Date
- 14-May-2024
- Completion Date
- 18-Oct-2023
Relations
- Effective Date
- 19-Jan-2023
Overview
EN 13523-23:2023 specifies a laboratory procedure to determine the resistance of an organic coating on a metallic substrate when exposed to humid atmospheres containing sulfur dioxide (SO2). The method concentrates on measuring colour change and other surface degradation (spotting, streaking, loss of gloss) after controlled exposure cycles. Note: the standard is aligned with ISO 22479 except for the SO2 amount and, based on prior ECCA work, is more reliable for colour fastness evaluation than for assessing corrosion severity.
Key Topics
- Scope: Evaluation of coil-coated metals for resistance to humid, SO2-containing atmospheres.
- Principle: Specimens are exposed in an airtight cabinet to humid conditions and a fixed SO2 load; colour change is measured instrumentally or visually and other degradation is recorded.
- Apparatus highlights: airtight cabinet (~300 ± 10 L) with a water trough and heater; temperature control to reach (40 ± 3) °C in about 1.5 h; gas inlet above the water trough; inert specimen supports.
- Specimens: nominal size 150 mm × 100 mm; reverse face and edges protected to avoid attack beneath the coating.
- Test cycle: use (2.0 ± 0.2) L distilled or deionised water in the trough, introduce (2.0 ± 0.2) L sulfur dioxide, heat and maintain target temperature for 8 h then allow 16 h rest; perform 5 continuous cycles.
- Results expression: report mean colour change (instrumental via EN 13523-3 or visual via EN 13523-22) and observations on spotting, streaking or gloss loss.
- Limitations: no precision data are provided in the document; the method is not recommended as a stand-alone corrosion assessment.
- Reporting requirements: identify the product tested, reference EN 13523-23:2023, give results, note deviations, anomalies and test date.
Applications
This standard is practical for manufacturers, testing laboratories and quality control teams who need:
- Quality control (QC): to verify colour stability and surface appearance of coil-coated products.
- Comparative testing: to compare formulations, pretreatments or process variants under a controlled humid SO2 challenge.
- Material selection: to inform choices for environments where sulphur-containing atmospheres can affect aesthetics.
The procedure provides a repeatable chamber protocol, specimen handling guidance and standardised reporting to support objective colour-fastness assessment and product specification.
Related Standards
- EN 13523-0 - Coil coated metals: General introduction
- EN 13523-3 - Colour difference and metamerism (instrumental)
- EN 13523-22 - Colour difference (visual comparison)
- EN 23270 - Temperatures and humidities for conditioning and testing
- ISO 22479:2019 - Sulfur dioxide test in a humid atmosphere (aligned except SO2 amount)
- EN 1396, EN 10169 - Related product and delivery condition standards
For implementation, laboratories should follow the apparatus, conditioning and reporting clauses in EN 13523-23:2023 and consult national standards bodies for adoption and any national variations.
Frequently Asked Questions
EN 13523-23:2023 is a standard published by the European Committee for Standardization (CEN). Its full title is "Coil coated metals - Test methods - Part 23: Resistance to humid atmospheres containing sulfur dioxide". This standard covers: This document describes the procedure for determining the resistance of an organic coating on a metallic substrate to humid atmospheres containing sulfur dioxide.
This document describes the procedure for determining the resistance of an organic coating on a metallic substrate to humid atmospheres containing sulfur dioxide.
EN 13523-23:2023 is classified under the following ICS (International Classification for Standards) categories: 17.180.20 - Colours and measurement of light; 25.220.60 - Organic coatings. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 13523-23:2023 has the following relationships with other standards: It is inter standard links to EN 13523-23:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 13523-23:2023 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2023
Nadomešča:
SIST EN 13523-23:2015
Prevlečene kovine, ki se navijajo - Preskusne metode - 23. del: Odpornost proti
vlažni atmosferi, ki vsebuje žveplov dioksid
Coil coated metals - Test methods - Part 23: Resistance to humid atmospheres
containing sulfur dioxide
Bandbeschichtete Metalle - Prüfverfahren - Teil 23: Beständigkeit gegen feuchte,
Schwefeldioxid enthaltende Atmosphären
Tôles prélaquées - Méthodes d'essai - Partie 23 : Résistance à des atmosphères
humides contenant du dioxyde de soufre
Ta slovenski standard je istoveten z: EN 13523-23:2023
ICS:
25.220.60 Organske prevleke Organic coatings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 13523-23
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2023
EUROPÄISCHE NORM
ICS 17.180.20; 25.220.60 Supersedes EN 13523-23:2015
English Version
Coil coated metals - Test methods - Part 23: Resistance to
humid atmospheres containing sulfur dioxide
Tôles prélaquées - Méthodes d'essai - Partie 23 : Bandbeschichtete Metalle - Prüfverfahren - Teil 23:
Résistance à des atmosphères humides contenant du Beständigkeit gegen feuchte, Schwefeldioxid
dioxyde de soufre enthaltende Atmosphären
This European Standard was approved by CEN on 12 May 2023.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13523-23:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 6
5 Apparatus . 6
6 Sampling . 7
7 Test specimens . 7
8 Procedure . 7
9 Expression of results . 8
10 Precision . 8
11 Test report . 8
Bibliography . 9
European foreword
This document (EN 13523-23:2023) 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 April 2024, and conflicting national standards shall be
withdrawn at the latest by April 2024.
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 13523-23:2015.
In comparison with the previous edition, the following technical modifications have been made:
a) the normative references have been updated;
b) the text has been editorially revised.
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 and metamerism — 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 16: Resistance to abrasion
prEN 13523-23:2022 (E)
— 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)
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European St
...
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