SIST EN ISO 4530:2023

Vitreous and porcelain enamelled manufactured articles - Determination of resistance to heat (ISO 4530:2022)

This document specifies the basic conditions concerning the method for determining the resistance of vitreous and porcelain enamelled articles to heat.
The method specified is applicable to vitreous and porcelain enamelled articles that are, in service, subjected to high temperature, for example, to some cooker components, exhaust pipe silencers, gas heating chimneys and flue pipes.

Emaillierte Gegenstände - Prüfung der Wärmebeständigkeit (ISO 4530:2022)

Dieses Dokument legt die Grundbedingungen für das Verfahren zur Bestimmung der Wärmebeständigkeit emaillierter Gegenstände fest.
Das festgelegte Verfahren ist auf emaillierte Gegenstände anwendbar, die im Gebrauch hohen Temperaturen ausgesetzt sind, z. B. für einige Herdteile, Abgas-Schalldämpfer, Gasheizungskamine und Abgasrohre.

Pièces manufacturées recouvertes d'émaux vitrifiés - Détermination de la résistance à la chaleur (ISO 4530:2022)

Le présent document spécifie les conditions de base de la méthode de détermination de la résistance à la chaleur des pièces manufacturées recouvertes d‘émaux vitrifiés.
La méthode spécifiée s’applique aux pièces manufacturées recouvertes d‘émaux vitrifiés soumises en service à des températures élevées, telles que, par exemple, certains éléments de cuisinières, les silencieux de tuyaux d’échappement, les cheminées de chauffage au gaz et les tuyaux de raccordement.

Stekleni in porcelanasto emajlirani industrijski izdelki - Določanje toplotne odpornosti (ISO 4530:2022)

Ta dokument določa osnovne pogoje v zvezi z metodo za določanje odpornosti
steklastih in porcelanasto emajliranih izdelkov proti toploti.
Navedena metoda se uporablja za steklaste in porcelanasto emajlirane izdelke, ki bodo med uporabo
izpostavljeni visoki temperaturi, na primer za nekatere komponente štedilnikov, dušilnike zvoka izpušnih cevi,
dimnike za plinsko ogrevanje in dimovodne cevi.

General Information

• Status: Published
• Public Enquiry End Date: 20-Mar-2022
• Publication Date: 27-Nov-2022
• ICS: 25.220.50 - Enamels
• Technical Committee: IPKZ - Protection of metals against corrosion
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 23-Nov-2022
• Due Date: 28-Jan-2023
• Completion Date: 28-Nov-2022
• Ref Project: EN ISO 4530:2022 - Vitreous and porcelain enamelled manufactured articles - Determination of resistance to heat (ISO 4530:2022)

Overview

The SIST EN ISO 4530:2023 standard specifies the method for determining the resistance to heat of vitreous and porcelain enamelled manufactured articles. It provides a standardized procedure to test how these enamelled surfaces withstand high temperature conditions, which are typical in service environments like cooker components, exhaust pipe silencers, gas heating chimneys, and flue pipes.

Developed by ISO Technical Committee ISO/TC 107 in cooperation with CEN/TC 262, this standard reflects the latest best practices and technical advancements, replacing the earlier 1983 edition. It ensures consistent and reliable testing to assess the durability and quality of vitreous and porcelain enamel coatings in high-temperature applications.

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Key Topics

• Scope
  Defines applicability to vitreous and porcelain enamelled articles subjected to elevated temperatures during use.

• Test Conditions
  Includes parameters such as:

  • Test temperature (typically 50 °C above service temperature)
  • Type of heating (direct and/or radiant)
  • Temperature measurement points
  • Heating rate (e.g., 30 °C/min to 40 °C/min)
  • Duration at test temperature
  • Number of heating and cooling cycles
  • Criteria for evaluating enamel damage or defects

• Test Procedure
  Involves heating the specimen to the agreed temperature, maintaining it for a set period, then allowing it to cool to ambient temperature. This process may be repeated for multiple cycles to confirm enamel resistance.

• Damage Assessment
  Visual examination for defects like cracking, chipping, flaking, or blistering of the enamel is conducted after thermal cycling.

• Test Report Requirements
  The report must document the tested specimen, sampling method, heating parameters, observed defects, and any deviations from the standard procedure.

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Applications

This standard is essential for manufacturers, quality controllers, and testing laboratories working with vitreous and porcelain enamelled articles that operate under high-temperature conditions. Practical applications include:

• Cooker Components
  Assurance of enamel coating durability on stovetops, burners, and oven parts exposed to thermal cycles.

• Exhaust Systems
  Testing silencers and flue pipes to guarantee stability of enamel coatings against repeated heat exposure from engine exhaust or heating appliances.

• Gas Heating Systems
  Verification of chimney and flue pipe enamel integrity subjected to combustion heat, ensuring safety and longevity.

• Industrial Enamelling Processes
  Provides manufacturers with standardized methods for heat resistance testing to enhance product reliability and meet regulatory requirements.

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Related Standards

• ISO 19496-1: Terminology for vitreous and porcelain enamels - establishes standardized terms used in SIST EN ISO 4530:2023.

• Standards on enamel coating quality and corrosion resistance within ISO/TC 107 and CEN/TC 262 portfolios.

• Additional CEN standards for testing metallic and inorganic coatings, linked to corrosion protection and durability assessments.

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Why SIST EN ISO 4530:2023 Matters
Adopting this standard helps ensure consistent evaluation and verification of thermal resistance in enamelled articles, preventing premature failure due to heat damage. It supports compliance with international market requirements and fosters improved product performance in thermally demanding environments.

For detailed methodology, test apparatus specifications, and reporting guidelines, reference the full SIST EN ISO 4530:2023 document available through ISO and national standards organizations.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2023
Stekleni in porcelanasto emajlirani industrijski izdelki - Določanje toplotne
odpornosti (ISO 4530:2022)
Vitreous and porcelain enamelled manufactured articles - Determination of resistance to
heat (ISO 4530:2022)
Emaillierte Gegenstände - Prüfung der Wärmebeständigkeit (ISO 4530:2022)
Pièces manufacturées recouvertes d'émaux vitrifiés - Détermination de la résistance à la
chaleur (ISO 4530:2022)
Ta slovenski standard je istoveten z: EN ISO 4530:2022
ICS:
25.220.50 Emajlne prevleke Enamels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4530
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2022
EUROPÄISCHE NORM
ICS 25.220.50
English Version
Vitreous and porcelain enamelled manufactured articles -
Determination of resistance to heat (ISO 4530:2022)
Pièces manufacturées recouvertes d'émaux vitrifiés - Emaillierte Gegenstände - Prüfung der
Détermination de la résistance à la chaleur (ISO Wärmebeständigkeit (ISO 4530:2022)
4530:2022)
This European Standard was approved by CEN on 29 October 2022.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4530:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 4530:2022) has been prepared by Technical Committee ISO/TC 107 "Metallic
and other inorganic coatings" in collaboration with Technical Committee CEN/TC 262 “Metallic and
other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys”
the secretariat of which is held by BSI.
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 May 2023, and conflicting national standards shall be
withdrawn at the latest by May 2023.
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.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, 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 the
United Kingdom.
Endorsement notice
The text of ISO 4530:2022 has been approved by CEN as EN ISO 4530:2022 without any modification.

INTERNATIONAL ISO
STANDARD 4530
Second edition
2022-10
Vitreous and porcelain enamelled
manufactured articles —
Determination of resistance to heat
Pièces manufacturées recouvertes d'émaux vitrifiés — Détermination
de la résistance à la chaleur
Reference number
ISO 4530:2022(E)
ISO 4530:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
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Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 4530:2022(E)
Contents Page
Foreword .iv
1 S c op e . 1
2 Nor m at i ve r ef er enc e s . 1
3 Terms and definitions . 1
4 G ener a l . 1
5 P r i nc iple . 2
6 A pp a r at u s . 2
7 S a mpl i n g . 2
8 P r o c e du re .2
9 Te s t r ep or t .
...