Paints and varnishes - Determination of the effect of heat (ISO 3248:2016)

ISO 3248:2016 specifies a method for determining the resistance of single coatings or multi-coat systems of paints, varnishes or related products to changes in gloss and/or colour, blistering, cracking and/or detachment from the substrate under conditions of a specified temperature.
This procedure is applicable to products intended for use on domestic radiators or other articles likely to be subjected to similar temperatures.

Beschichtungsstoffe - Bestimmung der Auswirkung von Wärme (ISO 3248:2016)

Diese Internationale Norm legt ein Verfahren zum Bestimmen der Beständigkeit einzelner Schichten oder eines Mehrschichtsystems aus Lacken, Anstrichstoffen und ähnlichen Beschichtungsstoffen gegen Änderung von Glanz und/oder Farbe, Blasenbildung, Rissbildung und/oder Ablösen vom Substrat bei einer festgelegten Temperatur fest.
Dieses Verfahren ist für Heizkörper im Wohnbereich oder andere Gegenstände anwendbar, die ähnlichen Temperaturen ausgesetzt sind.

Peintures et vernis - Détermination des effets de la chaleur (ISO 3248:2016)

L'ISO 3248 :2016 prescrit une méthode pour déterminer la résistance des couches uniques ou des systèmes multicouches de peintures, de vernis ou de produits assimilés au changement de brillant et/ou de couleur, au cloquage, au craquelage et/ou au décollement de leur subjectile dans des conditions d'exposition à une température spécifiée.
La méthode est applicable aux produits destinés à être utilisés sur des radiateurs à usage domestique ou sur d'autres articles susceptibles d'être exposés à des températures similaires.

Barve in laki - Ugotavljanje vpliva toplote (ISO 3248:2016)

Ta mednarodni standard določa metodo za ugotavljanje odpornosti enopokrivnih ali večpokrivnih sistemov barv, lakov ali sorodnih izdelkov na spremembe v sijaju in/ali barvi, mehurjenje, pokanje in/ali odstop od podlage pod pogoji določene temperature.
Ta postopek se uporablja za proizvode, namenjene za uporabo na radiatorjih za domačo uporabo ali drugih izdelkih, za katere obstaja verjetnost, da bodo izpostavljeni podobnim temperaturam.

General Information

Status
Published
Publication Date
16-Aug-2016
Withdrawal Date
27-Feb-2017
ICS
87.040 - Paints and varnishes
Technical Committee
CEN/TC 139 - Paints and varnishes
Drafting Committee
CEN/TC 139 - Paints and varnishes
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
17-Aug-2016
Completion Date
17-Aug-2016
Ref Project
SIST EN ISO 3248:2016 - Paints and varnishes - Determination of the effect of heat (ISO 3248:2016)

Relations

Replaces
EN ISO 3248:2000 - Paints and varnishes - Determination of the effect of heat (ISO 3248:1998)
Effective Date
24-Aug-2016

Overview

EN ISO 3248:2016 is an internationally recognized standard developed by CEN and ISO that specifies a reliable method for assessing the effect of heat on paints, varnishes, and related coating products. This standard outlines the procedure for determining the resistance of single or multi-coat paint systems to heat-induced changes such as alterations in gloss, color, blistering, cracking, and detachment from the substrate. It applies primarily to coatings used on domestic radiators or similar items exposed to elevated temperatures.

Designed to ensure product durability and quality under thermal stress, EN ISO 3248:2016 plays a crucial role in quality control, product development, and compliance testing within the coatings industry.

Key Topics

  • Test Methodology: Panels coated with the paint or varnish are exposed to controlled oven temperatures (typically 125 ± 2 °C for 24 hours). After heating, panels are cooled to ambient temperature and inspected for visual deterioration compared to unheated samples.
  • Evaluation Parameters:
    • Changes in gloss and color
    • Blistering and cracking
    • Detachment from the substrate
  • Sample Preparation: Test panels are prepared on substrates such as steel, tinplate, aluminium, or glass, with defined dimensions (150 mm × 100 mm). Coating application, drying/stoving, and conditioning procedures comply with relevant ISO standards (ISO 1514, ISO 3270, ISO 2808).
  • Additional Testing: Post-heat exposure, panels may undergo further mechanical tests like scratch resistance, bending, cupping, and impact resistance, adhering to ISO methods (ISO 1518-1, ISO 1519, ISO 1520, ISO 6272-1).
  • Test Conditions: The heat test emphasizes strict control over temperature and humidity to maintain comparability of results. Alternative conditions can be specified by agreement but must be clearly reported.
  • Reporting: Comprehensive documentation is required, including product details, preparation methods, test conditions, results, and any deviations or anomalies observed during testing.

Applications

The EN ISO 3248:2016 standard is invaluable for:

  • Quality Assurance and Control: Manufacturers can verify the thermal stability and durability of paint and varnish coatings to ensure performance under normal operating temperatures, especially for heating appliances.
  • Product Development: Formulators and R&D teams can test new coating formulations for improved heat resistance before market release.
  • Regulatory Compliance: Demonstrates conformance with international testing requirements for paints and varnishes exposed to heat, facilitating market acceptance across countries adopting CEN and ISO standards.
  • Failure Analysis: Identifies failure modes related to heat exposure, helping to troubleshoot and improve coating systems.
  • Contract and Tender Specifications: Provides a standard reference for defining performance criteria in tender documents within industrial and domestic sectors.

Related Standards

EN ISO 3248:2016 complements and references several other international standards essential for comprehensive testing and evaluation of paints and varnishes under heat stress:

  • ISO 1513 – Examination and preparation of test samples
  • ISO 1514 – Standard panels for testing coatings
  • ISO 2808 – Measurement of film thickness of coatings
  • ISO 3270 – Conditioning of paints and varnishes for testing
  • ISO 1518-1 – Scratch resistance test methods
  • ISO 1519 – Bend test for determining coating flexibility
  • ISO 1520 – Cupping test for coating deformation resistance
  • ISO 6272-1 – Impact resistance testing by falling weight

Together, these standards establish a comprehensive framework for evaluating the performance, durability, and reliability of coating products exposed to heat.

Keywords: EN ISO 3248:2016, paint heat resistance test, varnish heat effect, coating durability, thermal stability of paints, gloss change, color change, blistering, cracking, paint test standards, domestic radiator coatings, ISO paint testing, CEN paint standards, heat aging test for coatings.

Frequently Asked Questions

EN ISO 3248:2016 is a standard published by the European Committee for Standardization (CEN). Its full title is "Paints and varnishes - Determination of the effect of heat (ISO 3248:2016)". This standard covers: ISO 3248:2016 specifies a method for determining the resistance of single coatings or multi-coat systems of paints, varnishes or related products to changes in gloss and/or colour, blistering, cracking and/or detachment from the substrate under conditions of a specified temperature. This procedure is applicable to products intended for use on domestic radiators or other articles likely to be subjected to similar temperatures.

ISO 3248:2016 specifies a method for determining the resistance of single coatings or multi-coat systems of paints, varnishes or related products to changes in gloss and/or colour, blistering, cracking and/or detachment from the substrate under conditions of a specified temperature. This procedure is applicable to products intended for use on domestic radiators or other articles likely to be subjected to similar temperatures.

EN ISO 3248:2016 is classified under the following ICS (International Classification for Standards) categories: 87.040 - Paints and varnishes. The ICS classification helps identify the subject area and facilitates finding related standards.

EN ISO 3248:2016 has the following relationships with other standards: It is inter standard links to EN ISO 3248:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase EN ISO 3248:2016 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-oktober-2016
1DGRPHãþD
SIST EN ISO 3248:2001
Barve in laki - Ugotavljanje vpliva toplote (ISO 3248:2016)
Paints and varnishes - Determination of the effect of heat (ISO 3248:2016)
Beschichtungsstoffe - Bestimmung der Auswirkung von Wärme (ISO 3248:2016)
Peintures et vernis - Détermination des effets de la chaleur (ISO 3248:2016)
Ta slovenski standard je istoveten z: EN ISO 3248:2016
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 3248
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2016
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 3248:2000
English Version
Paints and varnishes - Determination of the effect of heat
(ISO 3248:2016)
Peintures et vernis - Détermination des effets de la Beschichtungsstoffe - Bestimmung der Auswirkung
chaleur (ISO 3248:2016) von Wärme (ISO 3248:2016)
This European Standard was approved by CEN on 8 July 2016.

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
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3248:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 3248:2016) has been prepared by Technical Committee ISO/TC 35 “Paints and
varnishes” in collaboration with 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 February 2017, and conflicting national standards
shall be withdrawn at the latest by February 2017.
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 ISO 3248:2000.
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.
Endorsement notice
The text of ISO 3248:2016 has been approved by CEN as EN ISO 3248:2016 without any modification.
INTERNATIONAL ISO
STANDARD 3248
Third edition
2016-08-01
Paints and varnishes — Determination
of the effect of heat
Peintures et vernis — Détermination des effets de la chaleur
Reference number
ISO 3248:2016(E)
©
ISO 2016
ISO 3248:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
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copyright@iso.org
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ii © ISO 2016 – All rights reserved

ISO 3248:2016(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Limitations . 1
5 Sampling . 2
6 Test panels . 2
6.1 Substrate . 2
6.2 Preparation and coating . . 2
6.3 Drying and conditioning . 2
6.4 Thickness of coating . 2
7 Procedure. 2
7.1 Temperature and duration of the test . 2
7.2 Determination . 2
8 Precision . 3
9 Test report .
...

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