Vitreous and porcelain enamels - Determination of the resistance to abrasion - Part 2: Loss in mass after sub-surface abrasion (ISO 6370-2:2020)

This document specifies a test method for determining the resistance of vitreous and porcelain enamel coatings to abrasion by rubbing, grinding or other mechanical effects.

Emails und Emaillierungen - Bestimmung des Widerstandes gegen Verschleiß - Teil 2: Massenverlust nach Tiefenverschleiß (ISO 6370-2:2021)

Dieses Dokument legt ein Prüfverfahren zur Bestimmung des Widerstandes von Emailschichten gegen Verschleiß durch reibende, schleifende oder andere mechanische Beanspruchung fest.
WARNUNG - Es besteht die Möglichkeit, dass dieses Dokument nicht mit den gesetzlichen Bestimmungen einiger Länder zum Gesundheits , Sicherheits  und Umweltschutz übereinstimmt, und seine Anwendung erfordert die Verwendung von Substanzen und/oder Verfahren, die gesundheitsschädlich sein könnten, wenn keine geeigneten Sicherheitsvorkehrungen getroffen werden. Dieses Dokument enthält keine Ausführungen zu Gesundheitsgefährdungen, Sicher-heits  oder Umweltaspekten und Gesetzgebungen, die mit seiner Anwendung zusammenhängen. Der Anwender dieses Dokumentes ist dafür verantwortlich, angemessene Maßnahmen zum Schutz der Gesundheit und Umwelt sowie zur Betriebssicherheit zu ergreifen.

Émaux vitrifiés - Détermination de la résistance à l'abrasion - Partie 2: Perte de masse après abrasion de la couche superficielle (ISO 6370-2:2020)

Le présent document spécifie une méthode d’essai permettant de déterminer la résistance des couches d’émail vitrifié à l’abrasion par frottement, meulage ou d’autres effets mécaniques.

Steklasti in porcelanski emajli - Ugotavljanje odpornosti proti površinski obrabi - 2. del: Izguba mase ob površinski obrabi (ISO 6370-2:2020)

General Information

Status
Published
Public Enquiry End Date
30-Jul-2021
Publication Date
14-Oct-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
13-Oct-2021
Due Date
18-Dec-2021
Completion Date
15-Oct-2021

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SLOVENSKI STANDARD
SIST EN ISO 6370-2:2021
01-december-2021
Steklasti in porcelanski emajli - Ugotavljanje odpornosti proti površinski obrabi -
2. del: Izguba mase ob površinski obrabi (ISO 6370-2:2020)
Vitreous and porcelain enamels - Determination of the resistance to abrasion - Part 2:
Loss in mass after sub-surface abrasion (ISO 6370-2:2020)
Emails und Emaillierungen - Bestimmung des Widerstandes gegen Verschleiß - Teil 2:
Massenverlust nach Tiefenverschleiß (ISO 6370-2:2021)
Émaux vitrifiés - Détermination de la résistance à l'abrasion - Partie 2: Perte de masse
après abrasion de la couche superficielle (ISO 6370-2:2020)
Ta slovenski standard je istoveten z: EN ISO 6370-2:2021
ICS:
25.220.50 Emajlne prevleke Enamels
SIST EN ISO 6370-2:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 6370-2:2021

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SIST EN ISO 6370-2:2021


EN ISO 6370-2
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2021
EUROPÄISCHE NORM
ICS 25.220.50
English Version

Vitreous and porcelain enamels - Determination of the
resistance to abrasion - Part 2: Loss in mass after sub-
surface abrasion (ISO 6370-2:2020)
Émaux vitrifiés - Détermination de la résistance à Emails und Emaillierungen - Bestimmung des
l'abrasion - Partie 2: Perte de masse après abrasion de Widerstandes gegen Verschleiß - Teil 2: Massenverlust
la couche superficielle (ISO 6370-2:2020) nach Tiefenverschleiß (ISO 6370-2:2021)
This European Standard was approved by CEN on 20 September 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 ISO 6370-2:2021 E
worldwide for CEN national Members.

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SIST EN ISO 6370-2:2021
EN ISO 6370-2:2021 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 6370-2:2021
EN ISO 6370-2:2021 (E)
European foreword
The text of ISO 6370-2:2020 has been prepared by Technical Committee ISO/TC 107 "Metallic and other
inorganic coatings” of the International Organization for Standardization (ISO) and has been taken over
as EN ISO 6370-2:2021 by 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 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.
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 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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 6370-2:2020 has been approved by CEN as EN ISO 6370-2:2021 without any
modification.

3

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SIST EN ISO 6370-2:2021

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SIST EN ISO 6370-2:2021
INTERNATIONAL ISO
STANDARD 6370-2
Third edition
2020-02
Vitreous and porcelain enamels —
Determination of the resistance to
abrasion —
Part 2:
Loss in mass after sub-surface
abrasion
Émaux vitrifiés — Détermination de la résistance à l'abrasion —
Partie 2: Perte de masse après abrasion de la couche superficielle
Reference number
ISO 6370-2:2020(E)
©
ISO 2020

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SIST EN ISO 6370-2:2021
ISO 6370-2:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
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
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

---------------------- Page: 8 ----------------------
SIST EN ISO 6370-2:2021
ISO 6370-2:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents and materials . 2
6 Apparatus . 2
7 Test specimens. 3
8 Procedure. 3
9 Expression of results . 4
10 Test report . 4
Annex A (informative) Identification of the float-bath surface of the reference glass plates .5
Annex B (informative) Calculation of uncertainty of measurement of wear .7
Bibliography . 9
© ISO 2020 – All rights reserved iii

---------------------- Page: 9 ----------------------
SIST EN ISO 6370-2:2021
ISO 6370-2:2020(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 107, Metallic and other inorganic coatings.
This third edition cancels and replaces the second edition (ISO 6370-2:2011), which has been technically
revised. The main changes compared with the previous edition are as follows:
— terms and definitions have been added;
— sanidine (potassium feldspar) has been included as an additional abrasive option for testing;
— the requirements for steel balls have been amended.
A list of all parts in the ISO 6370 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved

---------------------- Page: 10 ----------------------
SIST EN ISO 6370-2:2021
ISO 6370-2:2020(E)

Introduction
Extensive tests have shown that, with the comparative method described in this document, the
uncertainty of measurement of test results is ± 5 %. Furthermore, absolute quantities for the amount
of wear give little information, because abrasives used in practice differ considerably in their effect on
enamelled surfaces. Each abrasion test with a standardized method can only be carried out with the
aim of providing a general classification of various vitreous and porcelain enamels in relation to each
other. Absolute quantities for the amount of wear are therefore not required.
Numerous tests have shown that the three required test periods of 30 min were sufficient to obtain
comparable results. If th
...

SLOVENSKI STANDARD
oSIST prEN ISO 6370-2:2021
01-julij-2021
Steklasti in porcelanski emajli - Ugotavljanje odpornosti proti površinski obrabi -
2. del: Izguba mase ob površinski obrabi (ISO 6370-2:2020)
Vitreous and porcelain enamels - Determination of the resistance to abrasion - Part 2:
Loss in mass after sub-surface abrasion (ISO 6370-2:2020)
Emails und Emaillierungen - Bestimmung des Widerstandes gegen Verschleiß - Teil 2:
Massenverlust nach Tiefenverschleiß (ISO 6370-2:2021)
Émaux vitrifiés - Détermination de la résistance à l'abrasion - Partie 2: Perte de masse
après abrasion de la couche superficielle (ISO 6370-2:2020)
Ta slovenski standard je istoveten z: prEN ISO 6370-2
ICS:
25.220.50 Emajlne prevleke Enamels
oSIST prEN ISO 6370-2:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 6370-2:2021

---------------------- Page: 2 ----------------------
oSIST prEN ISO 6370-2:2021
INTERNATIONAL ISO
STANDARD 6370-2
Third edition
2020-02
Vitreous and porcelain enamels —
Determination of the resistance to
abrasion —
Part 2:
Loss in mass after sub-surface
abrasion
Émaux vitrifiés — Détermination de la résistance à l'abrasion —
Partie 2: Perte de masse après abrasion de la couche superficielle
Reference number
ISO 6370-2:2020(E)
©
ISO 2020

---------------------- Page: 3 ----------------------
oSIST prEN ISO 6370-2:2021
ISO 6370-2:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
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
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

---------------------- Page: 4 ----------------------
oSIST prEN ISO 6370-2:2021
ISO 6370-2:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents and materials . 2
6 Apparatus . 2
7 Test specimens. 3
8 Procedure. 3
9 Expression of results . 4
10 Test report . 4
Annex A (informative) Identification of the float-bath surface of the reference glass plates .5
Annex B (informative) Calculation of uncertainty of measurement of wear .7
Bibliography . 9
© ISO 2020 – All rights reserved iii

---------------------- Page: 5 ----------------------
oSIST prEN ISO 6370-2:2021
ISO 6370-2:2020(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 107, Metallic and other inorganic coatings.
This third edition cancels and replaces the second edition (ISO 6370-2:2011), which has been technically
revised. The main changes compared with the previous edition are as follows:
— terms and definitions have been added;
— sanidine (potassium feldspar) has been included as an additional abrasive option for testing;
— the requirements for steel balls have been amended.
A list of all parts in the ISO 6370 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved

---------------------- Page: 6 ----------------------
oSIST prEN ISO 6370-2:2021
ISO 6370-2:2020(E)

Introduction
Extensive tests have shown that, with the comparative method described in this document, the
uncertainty of measurement of test results is ± 5 %. Furthermore, absolute quantities for the amount
of wear give little information, because abrasives used in practice differ considerably in their effect on
enamelled surfaces. Each abrasion test with a standardized method can only be carried out with the
aim of providing a general classification of various vitreous and porcelain enamels in relation to each
other. Absolute quantities for the amount of wear are therefore not required.
Numerous tests have shown that the three required test periods of 30 min were sufficient to obtain
comparable results. If the vitreous and porcelain enamel coat to be tested is thicker than 0,2 mm, it is
not necessary to determine the loss in mass after each 30 min test period, because the abrasion under
the conditions described in this document is directly proportional to the test duration.
© ISO 2020 – All rights reserved v

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oSIST prEN ISO 6370-2:2021

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oSIST prEN ISO 6370-2:2021
INTERNATIONAL STANDARD ISO 6370-2:2020(E)
Vitreous and porcelain enamels — Determination of the
resistance to abrasion —
Part 2:
Loss in mass after sub-surface abrasion
WARNING — This document may not be compliant with some countries’ health and safety
legislations and calls for the use of substances and/or procedures that may be injurious to health
if adequate safety measures are not taken. This document does not address any health hazards,
safety or environmental matters and legislations associated with its use. It is the responsibility
of the user of this document to establish appropriate health, safety and environmentally
acceptable practices.
1 Scope
This document specifies a test method for determining the resistance of vitreous and porcelain enamel
coatings to abrasion by rubbing, grinding or other mechanical effects.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 648, Laboratory glassware — Single-volume pipettes
ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 6344-2, Coated abrasives — Grain size analysis — Part 2: Determination of grain size distribution of
macrogrits P12 to P220
ISO 6370-1:1991, Vitreous and porcelain enamels — Determination of the resistance to abrasion — Part 1:
Abrasion testing apparatus
ISO 28764, Vitreous and porcelain enamels — Production of specimens for testing enamels on sheet steel,
sheet aluminium
...

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