SIST EN 13523-2:2021
(Main)Coil coated metals - Test methods - Part 2: Gloss
Coil coated metals - Test methods - Part 2: Gloss
This document specifies the procedure for determining the gloss of an organic coating on a metallic substrate. Gloss is a characteristic of fundamental importance to the appearance of the coil coated product.
The apparatus requires a flat specimen of size greater than the aperture, thus, uneven surfaces cannot be measured.
This method is applicable to all pigmented and unpigmented coatings including metallic/pearlescent coatings. However, for textured coatings it is only indicative.
Bandbeschichtete Metalle - Prüfverfahren - Teil 2: Glanz
Dieses Dokument legt das Verfahren zum Bestimmen des Glanzes einer organischen Beschichtung auf einem metallischen Substrat fest. Der Glanz ist eine Kenngröße von grundsätzlicher Bedeutung für das Aussehen eines bandbeschichteten Produktes.
Das Gerät erfordert eine flache Probe, die größer ist als die Messöffnung. Unebene Proben können folglich nicht gemessen werden.
Das Verfahren ist auf alle pigmentierten und nichtpigmentierten Beschichtungen, einschließlich Beschichtungen mit Metalleffekt oder Perlglanzeffekt, anwendbar. Bei strukturierten Beschichtungen ergibt es jedoch nur Anhaltswerte.
Tôles prélaquées - Méthodes d'essai - Partie 2 : Brillant
Le présent document décrit la méthode de détermination du brillant d’un revêtement organique sur un subjectile métallique. Le brillant est une caractéristique qui a une importance fondamentale pour l’aspect du produit prélaqué.
L’appareillage requiert une éprouvette plane de taille supérieure à l’ouverture. Par conséquent, les surfaces irrégulières ne peuvent pas être mesurées.
Cette méthode s’applique à tous les revêtements, pigmentés ou non, y compris aux revêtements métalliques/nacrés. Cependant, pour les revêtements texturés, elle est seulement indicative.
Prevlečene kovine, ki se navijajo - Preskusne metode - 2. del: Sijaj
General Information
- Status
- Published
- Public Enquiry End Date
- 01-Oct-2020
- Publication Date
- 08-Nov-2021
- Technical Committee
- IBLP - Paints and varnishes
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 22-Oct-2021
- Due Date
- 27-Dec-2021
- Completion Date
- 09-Nov-2021
Relations
- Effective Date
- 01-Dec-2021
Overview
SIST EN 13523-2:2021 is a European standard developed by CEN that specifies the test method for determining the gloss of organic coatings applied on metallic substrates, specifically coil coated metals. Gloss is a critical optical property that significantly affects the appearance and visual quality of coil coated products used across various industries. The standard outlines a precise procedure to measure the specular reflectance of coatings to evaluate gloss performance, thus ensuring consistent quality and compliance with industry requirements.
This standard applies to all pigmented and unpigmented coatings, including metallic and pearlescent finishes, although measurements on highly textured coatings are considered indicative only due to surface irregularities. The method requires flat specimens larger than the device aperture for accurate readings, meaning it is not applicable to uneven or rough surfaces.
Key Topics
- Gloss Measurement Principle: Gloss is measured by quantifying the specular reflectance of light at specified angles, commonly 60°, with optional 20° or 85° geometries for enhanced sensitivity to high or low gloss levels.
- Required Apparatus: A glossmeter or multi-angle glossmeter meeting the requirements of EN ISO 2813 is employed along with calibration standards for accuracy.
- Sample Preparation and Conditioning: Samples are prepared and conditioned in line with EN 13523-0:2021 to ensure standardized testing conditions.
- Measurement Procedure:
- Choose geometry based on gloss range (20° for high gloss > 70 GU, 85° for low gloss < 10 GU, otherwise 60°).
- Calibrate the instrument with high-gloss reference plates.
- Measure gloss at ambient, or controlled conditions (23 ± 2 °C temperature, 50 ± 5% relative humidity) for critical assessments.
- Take at least three readings on different locations and directions (rolling or perpendicular direction), averaging results for the final gloss value.
- Gloss Units (GU): Results are expressed in gloss units, a standardized scale for comparing surface reflectivity.
- Reporting Requirements: Test reports should include product identification, test reference, geometry used, measurement direction, obtained results, deviations if any, anomalies, and date of testing.
Applications
The SIST EN 13523-2:2021 standard is fundamental for industries and professionals involved in the production, quality control, and specification of coil coated metals. Key applications include:
- Quality Assurance: Ensuring consistent gloss finish that meets customer and regulatory specifications.
- Product Development: Optimizing coating formulations and processes to achieve desired gloss characteristics.
- Material Specification: Supporting architectural, automotive, appliance, and construction industries in selecting metal substrates with precise aesthetic properties.
- Compliance and Certification: Verifying gloss performance according to recognized international methods to facilitate market access and standardization.
- Surface Appearance Evaluation: Monitoring changes in gloss after exposure to environmental factors or durability testing as part of lifecycle assessments.
Related Standards
SIST EN 13523-2:2021 is part of the broader EN 13523 series on coil coated metals test methods, including but not limited to:
- EN 13523-0 - General introduction to test methods for coil coated metals
- EN 13523-1 - Film Thickness measurement
- EN 13523-3 - Colour difference and metamerism tests
- EN 13523-4 - Pencil Hardness test for surface hardness
- EN 13523-8 - Resistance to salt spray (corrosion testing)
- EN 13523-12 - Resistance to scratching
- EN ISO 2813 - International standard for gloss measurement
- EN ISO 4618 - Terminology related to paints and varnishes
These complementary standards provide comprehensive testing protocols covering physical, chemical, and optical properties crucial for coil coated metal performance evaluation.
By adopting SIST EN 13523-2:2021, manufacturers and quality professionals can ensure reliable gloss measurement, maintain aesthetic quality standards, and support the durability and market acceptance of coil coated metal products. This standard plays a vital role in harmonizing testing methods across Europe and internationally, reinforcing product integrity in competitive industries.
Frequently Asked Questions
SIST EN 13523-2:2021 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Coil coated metals - Test methods - Part 2: Gloss". This standard covers: This document specifies the procedure for determining the gloss of an organic coating on a metallic substrate. Gloss is a characteristic of fundamental importance to the appearance of the coil coated product. The apparatus requires a flat specimen of size greater than the aperture, thus, uneven surfaces cannot be measured. This method is applicable to all pigmented and unpigmented coatings including metallic/pearlescent coatings. However, for textured coatings it is only indicative.
This document specifies the procedure for determining the gloss of an organic coating on a metallic substrate. Gloss is a characteristic of fundamental importance to the appearance of the coil coated product. The apparatus requires a flat specimen of size greater than the aperture, thus, uneven surfaces cannot be measured. This method is applicable to all pigmented and unpigmented coatings including metallic/pearlescent coatings. However, for textured coatings it is only indicative.
SIST EN 13523-2:2021 is classified under the following ICS (International Classification for Standards) categories: 17.040.20 - Properties of surfaces; 25.220.60 - Organic coatings. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 13523-2:2021 has the following relationships with other standards: It is inter standard links to SIST EN 13523-2:2014. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN 13523-2:2021 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 SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2021
Nadomešča:
SIST EN 13523-2:2014
Prevlečene kovine, ki se navijajo - Preskusne metode - 2. del: Sijaj
Coil coated metals - Test methods - Part 2: Gloss
Bandbeschichtete Metalle - Prüfverfahren - Teil 2: Glanz
Tôles prélaquées - Méthodes d'essai - Partie 2 : Brillant
Ta slovenski standard je istoveten z: EN 13523-2:2021
ICS:
17.040.20 Lastnosti površin Properties of surfaces
25.220.60 Organske prevleke Organic coatings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 13523-2
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 25.220.60 Supersedes EN 13523-2:2014
English Version
Coil coated metals - Test methods - Part 2: Gloss
Tôles prélaquées - Méthodes d'essai - Partie 2 : Brillant Bandbeschichtete Metalle - Prüfverfahren - Teil 2:
Glanz
This European Standard was approved by CEN on 16 August 2021.
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, Turkey 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13523-2:2021 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 panels . 7
8 Procedure. 7
8.1 Selection of the measuring geometry . 7
8.2 Calibration . 7
8.3 Measurement . 7
9 Expression of results . 7
10 Precision . 7
11 Test report . 7
Bibliography . 9
European foreword
This document (EN 13523-2:2021) 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 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
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 13523-2:2014.
The main changes are:
a) the definition has been aligned with those in EN ISO 4618;
b) the list of the existing parts of EN 13523 has been updated;
c) the text has been editorially revised 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 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: Resista
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