EN ISO 8442-9:2018

SLOVENSKI STANDARD
01-december-2018
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Materials and articles in contact with foodstuffs - Cutlery and table holloware - Part 9:
Requirements for ceramic knives (ISO 8442-9:2018)
Werkstoffe und Gegenstände in Kontakt mit Lebensmitteln - Schneidwaren und
Tafelgeräte - Teil 9: Anforderungen für keramische Messer (ISO 8442-9:2018)
Matériaux et objets en contact avec les denrées alimentaires - Coutellerie et orfèvrerie
de table - Partie 9: Exigences relatives aux couteaux en céramiques (ISO 8442-9:2018)
Ta slovenski standard je istoveten z: EN ISO 8442-9:2018
ICS:
67.250 Materiali in predmeti v stiku z Materials and articles in
živili contact with foodstuffs
97.040.60 Kuhinjska posoda, jedilni Cookware, cutlery and
servisi in jedilni pribor flatware
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8442-9
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2018
EUROPÄISCHE NORM
ICS 67.250; 97.040.60
English Version
Materials and articles in contact with foodstuffs - Cutlery
and table holloware - Part 9: Requirements for ceramic
knives (ISO 8442-9:2018)
Matériaux et objets en contact avec les denrées Werkstoffe und Gegenstände in Kontakt mit
alimentaires - Coutellerie et orfèvrerie de table - Partie Lebensmitteln - Schneidwaren und Tafelgeräte - Teil 9:
9: Exigences relatives aux couteaux en céramiques (ISO Anforderungen für keramische Messer (ISO 8442-
8442-9:2018) 9:2018)
This European Standard was approved by CEN on 10 March 2018.

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, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8442-9:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
This document (EN ISO 8442-9:2018) has been prepared by Technical Committee ISO/TC 186 “Cutlery
and table and decorative metal hollow-ware” in collaboration with Technical Committee CEN/TC 194
“Utensils in contact with food” the secretariat of which is held by AFNOR.
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 September 2018, and conflicting national standards
shall be withdrawn at the latest by September 2018.
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.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 8442-9:2018 has been approved by CEN as EN ISO 8442-9:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 8442-9
First edition
2018-02
Materials and articles in contact
with foodstuffs — Cutlery and table
holloware —
Part 9:
Requirements for ceramic knives
Matériaux et objets en contact avec les denrées alimentaires —
Coutellerie et orfèvrerie de table —
Partie 9: Exigences relatives aux couteaux en céramique
Reference number
ISO 8442-9:2018(E)
©
ISO 2018
ISO 8442-9:2018(E)
© ISO 2018
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
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CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
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Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 8442-9:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Materials and construction . 2
5 Performance requirements . 2
5.1 Hardness of ceramic blades . 2
5.2 Sharpness and edge retention . 2
5.3 Impact resistance of inclined plane of ceramic blades . 3
5.3.1 General. 3
5.3.2 Apparatus . 3
5.3.3 Procedure . 3
5.4 Bonding strength of the coating and printing of ceramic blades . 3
5.4.1 General. 3
5.4.2 Apparatus . 3
5.4.3 Procedure . 3
5.5 Dishwasher safety . 4
5.6 Resistance to thermal shock . 4
6 Safety instructions . 4
Annex A (normative) Metallography examination . 5
Annex B (normative) Schematic diagram of impact resistance of inclined plane of ceramic blade .6
Annex C (normative) Bonding strength test apparatus for the coating and printing of
ceramic blade . 8
Bibliography . 9
ISO 8442-9:2018(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 on 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 the following
URL: www .iso .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 186, Cutlery and table and decorative
metal hollow-ware.
A list of all parts in the ISO 8442 series can be found on the ISO website.
iv © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 8442-9:2018(E)
Materials and articles in contact with foodstuffs — Cutlery
and table holloware —
Part 9:
Requirements for ceramic knives
1 Scope
This document specifies material and performance requirements and test method of ceramic blades of
knives intended for use in the preparation of food.
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 3452-1, Non-destructive testing — Penetrant testing — Part 1: General principles
ISO 8442-1, Materials and articles in contact with foodstuffs — Cutlery and table holloware — Part 1:
Requirements for cutlery for the preparation of food
ISO 8442-5, Materials and articles in contact with foodstuffs — Cutlery and table holloware — Part 5:
Specification for sharpness and edge retention test of cutlery
ISO 14705, Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for hardness of
monolithic ceramics at room temperature
EN 12875-1, Mechanical dishwashing resistance of utensils — Part 1: Reference test method for domestic
articles
EN 1183:1997, Materials and articles in contact with foodstuffs — Test methods for thermal shock and
thermal shock endurance
3 Terms and definitions
For the purposes of this document, the
...