ISO/FDIS 8442-5
(Main)Materials and articles in contact with foodstuffs — Cutlery and table holloware — Part 5: Specification for sharpness and cutting wear resistance test of cutlery
- Abstract
ISO 8442-5:2004 specifies the sharpness and edge retention of knives which are produced for professional and domestic use in the preparation of food of all kinds, specifically those knives intended for hand use. Powered blade instruments of any kind are excluded. Generally these types of knife are manufactured with blades of either plain edge design or with edges incorporating particular features to enhance or optimize aspects of cutting ability. The following two types of knife blade are suitable for the cutting test. Type A edges: cutting edges which can be resharpened by the user and edges with a pitch greater than 1mm; Type B edges: cutting edges which are not intended to be resharpened on a steel. Whilst these knives are predominantly manufactured with blades made from various grades of heat treated steels, the testing of knives of any construction or blade material is not precluded providing that the test criteria are met. The principle of the testing is to reproduce a cutting action, by forward and reverse strokes, against a pack of synthetic test medium under controlled parameters.
- Status
- Not Published
- Technical Committee
- ISO/TC 186 - Cutlery and table and decorative metal hollow-ware
- Drafting Committee
- ISO/TC 186/WG 2 - Cutlery - Requirements and Specification
- Current Stage
- 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
- Start Date
- 27-Oct-2026
- Completion Date
- 27-Oct-2026
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ISO/FDIS 8442-5 - Materials and articles in contact with foodstuffs — Cutlery and table holloware — Part 5: Specification for sharpness and cutting wear resistance test of cutlery
REDLINE ISO/FDIS 8442-5 - Materials and articles in contact with foodstuffs — Cutlery and table holloware — Part 5: Specification for sharpness and cutting wear resistance test of cutlery
ISO/FDIS 8442-5 - Matériaux et objets en contact avec les denrées alimentaires — Coutellerie et orfèvrerie de table — Partie 5: Spécification de la performance de coupe et essai de résistance à l'usure de coupe des articles de coutellerie
ISO/FDIS 8442-5, published by ISO, specifies test methods for the sharpness and cutting wear resistance of hand-use knives for food preparation. It is written for professional and domestic cutlery, so manufacturers, test labs, and buyers can assess how a knife edge cuts at the start and how it wears in use.
What does ISO/FDIS 8442-5 specify?
ISO/FDIS 8442-5 covers knives designed for hand use in preparing food of all kinds. It describes how to measure sharpness and how to evaluate edge wear resistance under controlled test conditions.
The scope distinguishes two blade edge types:
- Type A edges - edges that can be resharpened by the user and edges with a pitch greater than 1 mm
- Type B edges - edges that are not intended to be resharpened on a steel
The document excludes powered blade instruments. It also excludes hunting knives, pocket knives, razors, and tool or utility knives such as carpet knives with trapezoidal blades. Knives with special shapes, such as herb chopping knives or highly curved boning knives, can only be tested in the style of this document because not every method applies to them in a meaningful way.
The document is organized into these main parts:
| Part | What it covers |
|---|---|
| Clause 1 | Scope |
| Clause 2 | Normative references |
| Clause 3 | Terms and definitions |
| Clause 4 | Sharpness testing |
| Clause 5 | Wear resistance testing and result evaluation |
| Annex A | Sharpness testing |
| Annex B | Apparatus for wear resistance testing |
What are the key requirements of ISO/FDIS 8442-5?
ISO/FDIS 8442-5 is built around two physical tests: one for initial sharpness and one for edge retention. The practical point is that the document does not just describe a knife qualitatively - it tells users how to run repeatable measurements against a defined medium.
Sharpness testing
- Clause 4 defines sharpness as the force at the first moment of material separation in the test material. In practice, this means the test focuses on the edge’s ability to start a cut, not just to continue one.
- Clause 4 requires the apparatus described in Annex A. Annex A gives two test principles: foil pressure cutting and foil pull cutting, both using polytetrafluoroethylene (PTFE) foil. This helps compare cutting behavior under controlled geometry and force measurement.
Wear resistance testing
- Clause 5.1 says the wear resistance test is carried out before any other physical or mechanical test. In practice, the knife is assessed in the “as received” condition, before other handling changes the edge.
- Clause 5.2 limits the tested edge length to a straight portion with a maximum deviation of ±1 mm over a 40 mm stroke. This matters because the method depends on a controlled, repeatable stroke path.
- Clause 5.3 and Clause 5.4 require the apparatus and test medium described in Annex B. The test medium is a special card with abrasive quartz, so the cutting action is standardized rather than dependent on ordinary paper or food.
- Clause 5.5 uses forward and reverse cutting strokes of 40 mm under a 50 N load, with the blade starting 3 mm from the clamped edge and avoiding contact with the metal support bar. This is what reproduces the wear process under controlled conditions.
- Clause 5.5 also sets the number of cycles: 8 cycles when TTCP is the evaluation parameter, or 60 cycles when TCC is used. That choice affects how long the test runs and what performance measure is reported.
- Clause 5.6 defines the evaluation quantities, including the decay factor, the starting value, the ideal curve, Expected Lifetime Factor (ELF), Theoretical Total Cutting Performance (TTCP), Initial Cutting Performance (ICP), and Total Cut Card (TCC). In practice, these values turn the measured cut depths into a performance profile that can be compared between knives.
What terms does ISO/FDIS 8442-5 define?
ISO/FDIS 8442-5 uses the terms and definitions from ISO 8442-1, and Clause 5.6 adds the test quantities used in the wear method.
- Cutting cycle - one forward stroke plus one reverse stroke of the specified blade length against the test material.
- c(i) - the depth of cut through the card pack measured in cycle i.
- Decay factor (a) - a calculated factor used to describe how cutting performance changes over the test.
- Expected Lifetime Factor (ELF) - a factor derived from the decay factor and used in the performance calculation.
- Theoretical Total Cutting Performance (TTCP) - the calculated total cutting performance based on the model in Clause 5.6.
- Initial Cutting Performance (ICP) - the summed cutting performance at the start of the test.
- Total Cut Card (TCC) - the cumulative cut depth after 60 cycles.
Who uses ISO/FDIS 8442-5?
ISO/FDIS 8442-5 is used by cutlery manufacturers, test laboratories, and quality teams that need to verify knife sharpness and edge retention. It is also relevant to buyers and specifiers for professional and domestic food-preparation knives who need a consistent way to compare products. The methods are especially useful where the edge shape, sharpening approach, or blade material affects cutting performance.
What changed in ISO/FDIS 8442-5 from the previous edition?
ISO/FDIS 8442-5 is the second edition and it replaces ISO 8442-5:2004. The document states these main changes:
- description of the foil pressure cutting test
- description of the foil pull cutting test
- introduction of a new evaluation method for cutting wear resistance
- revision of the wear resistance test medium
Which standards are used with ISO/FDIS 8442-5?
- ISO 8442-1 - provides the requirements for cutlery for the preparation of food, and its terms and definitions apply to this part.
What does the ISO/FDIS 8442-5 document contain?
ISO/FDIS 8442-5 contains the two test methods, their operating principles, and the formulas used to evaluate wear behavior. Annex A gives the sharpness-test arrangement and its foil-based test principles, while Annex B gives the wear-test apparatus, card holder arrangement, slide units, transducer, and the test medium specification.
The document also includes a worked recording example in Table 1 and physical properties for the test card in Table B.1. The annex text explains how to condition the card, how to load and clamp it, and how to record cut depth from cycle to cycle.
Relations
- Effective Date
- 12-Feb-2026
- Effective Date
- 15-Feb-2025
- Effective Date
- 15-Feb-2025
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ISO/FDIS 8442-5 - Materials and articles in contact with foodstuffs — Cutlery and table holloware — Part 5: Specification for sharpness and cutting wear resistance test of cutlery
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ISO/FDIS 8442-5 - Matériaux et objets en contact avec les denrées alimentaires — Coutellerie et orfèvrerie de table — Partie 5: Spécification de la performance de coupe et essai de résistance à l'usure de coupe des articles de coutellerie
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Frequently Asked Questions
ISO/FDIS 8442-5 is a draft published by the International Organization for Standardization (ISO). Its full title is "Materials and articles in contact with foodstuffs — Cutlery and table holloware — Part 5: Specification for sharpness and cutting wear resistance test of cutlery". This standard covers: ISO 8442-5:2004 specifies the sharpness and edge retention of knives which are produced for professional and domestic use in the preparation of food of all kinds, specifically those knives intended for hand use. Powered blade instruments of any kind are excluded. Generally these types of knife are manufactured with blades of either plain edge design or with edges incorporating particular features to enhance or optimize aspects of cutting ability. The following two types of knife blade are suitable for the cutting test. Type A edges: cutting edges which can be resharpened by the user and edges with a pitch greater than 1mm; Type B edges: cutting edges which are not intended to be resharpened on a steel. Whilst these knives are predominantly manufactured with blades made from various grades of heat treated steels, the testing of knives of any construction or blade material is not precluded providing that the test criteria are met. The principle of the testing is to reproduce a cutting action, by forward and reverse strokes, against a pack of synthetic test medium under controlled parameters.
ISO 8442-5:2004 specifies the sharpness and edge retention of knives which are produced for professional and domestic use in the preparation of food of all kinds, specifically those knives intended for hand use. Powered blade instruments of any kind are excluded. Generally these types of knife are manufactured with blades of either plain edge design or with edges incorporating particular features to enhance or optimize aspects of cutting ability. The following two types of knife blade are suitable for the cutting test. Type A edges: cutting edges which can be resharpened by the user and edges with a pitch greater than 1mm; Type B edges: cutting edges which are not intended to be resharpened on a steel. Whilst these knives are predominantly manufactured with blades made from various grades of heat treated steels, the testing of knives of any construction or blade material is not precluded providing that the test criteria are met. The principle of the testing is to reproduce a cutting action, by forward and reverse strokes, against a pack of synthetic test medium under controlled parameters.
ISO/FDIS 8442-5 is classified under the following ICS (International Classification for Standards) categories: 67.250 - Materials and articles in contact with foodstuffs; 97.040.60 - Cookware, cutlery and flatware. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO/FDIS 8442-5 has the following relationships with other standards: It is inter standard links to FprEN ISO 8442-5, ISO/TR 18607:2025, ISO 8442-5:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO/FDIS 8442-5 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
FINAL DRAFT
International
Standard
ISO/TC 186
Materials and articles in contact
Secretariat: SAC
with foodstuffs — Cutlery and table
Voting begins on:
holloware —
2026-10-27
Part 5:
Voting terminates on:
2026-12-08
Specification for sharpness and
cutting wear resistance test of
cutlery
Matériaux et objets en contact avec les denrées alimentaires —
Coutellerie et orfèvrerie de table —
Partie 5: Spécification du tranchant et essai de résistance à
l'usure de coupe des articles de coutellerie
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
FINAL DRAFT
International
Standard
ISO/TC 186
Materials and articles in contact
Secretariat: SAC
with foodstuffs — Cutlery and table
Voting begins on:
holloware —
Part 5:
Voting terminates on:
Specification for sharpness and
cutting wear resistance test of
cutlery
Matériaux et objets en contact avec les denrées alimentaires —
Coutellerie et orfèvrerie de table —
Partie 5: Spécification du tranchant et essai de résistance à
l'usure de coupe des articles de coutellerie
© ISO 2026
All rights reserved.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
This ISO publication is protected by copyright and is owned by ISO and/or its licensors.
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
The content of this ISO publication is provided under licence, not sold. Use is subject to the applicable licence terms issued by ISO,
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
an ISO member body, or an authorized third-party distributor.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
Except as required for implementation or expressly permitted by a separate licence, no part of this ISO publication may be
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
reproduced, distributed, modified, used, or made available in any form or by any means – electronic or mechanical, including
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
photocopying, scanning, recording, or posting on internal or external digital platforms. TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
Any use beyond the scope of the granted rights is prohibited and may result in legal action.
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
Reference number
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Sharpness testing . 1
5 Wear resistance testing . 2
5.1 General .2
5.2 Test length .2
5.3 Apparatus .2
5.4 Test medium .2
5.5 Test procedure .2
5.6 Evaluation/Expression of results .3
Annex A (normative) Sharpness testing . 4
Annex B (normative) Apparatus for wear resistance testing . 6
iii
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 186, Cutlery and table and decorative metal
hollow-ware, in collaboration with the European Committee for Standardization (CEN) Technical Committee
CEN/TC 194, Utensils in contact with food, in accordance with the Agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 8442-5:2004), which has been technically
revised.
The main changes are as follows:
— description of the foil pressure cutting test and foil pull cutting test;
— introduction of a new evaluation method for cutting wear resistance test;
— revision of the wear resistance test medium.
A list of all parts in the ISO 8442 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
FINAL DRAFT International Standard ISO/FDIS 8442-5:2026(en)
Materials and articles in contact with foodstuffs — Cutlery
and table holloware —
Part 5:
Specification for sharpness and cutting wear resistance test of
cutlery
1 Scope
This document specifies the sharpness and wear resistance of knives, which are designed for professional
and domestic use in the preparation of food of all kinds, specifically of those knives intended for hand use.
This document describes test methods for sharpness measurement and for the evaluation of wear resistance
of the cutting edge.
This document does not apply for hunting knives, pocket knives, razors or tool or utility knives (with
trapezoidal blade for cutting carpets etc.). Knives with special shapes, e.g. herb chopping knives or highly
curved boning knives, can only be tested in the style of this document since not all properties and test
methods are applicable in a meaningful manner.
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 8442-1, Materials and articles in contact with foodstuffs — Cutlery and table holloware — Part 1:
Requirements for cutlery for the preparation of food
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8442-1 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
4 Sharpness testing
The test methods focus on the micro cutting wedge and its cutting edge. At the beginning of the test
procedure the test material is deformed. The force measured in the first moment of material separation
(cutting
...
ISO/TC 186
Secretariat: SAC
Date: 2026-09-25xx
Materials and articles in contact with foodstuffs — Cutlery and table
holloware —
Part 5:
Specification for sharpness and cutting wear resistance test of cutlery
Matériaux et objets en contact avec les denrées alimentaires — Coutellerie et orfèvrerie de table —
Partie 5: Spécification du tranchant et essai de résistance à l'usure de coupe des articles de coutellerie
FDIS stage
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All rights reserved.
This ISO publication is protected by copyright and is owned by ISO and/or its licensors.
The content of this ISO publication is provided under licence, not sold. Use is subject to the applicable licence terms issued
by ISO, an ISO member body, or an authorized third-party distributor.
Except as required for implementation or expressly permitted by a separate licence, no part of this ISO publication may
be reproduced, distributed, modified, used, or made available in any form or by any means – electronic or mechanical,
including photocopying, scanning, recording, or posting on internal or external digital platforms.
Any use beyond the scope of the granted rights is prohibited and may result in legal action.
ISO copyright office
CP 401 • CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Sharpness testing . 1
5 Wear resistance testing . 2
5.1 General . 2
5.2 Test length . 2
5.3 Apparatus . 2
5.4 Test medium . 2
5.5 Test procedure . 2
5.6 Evaluation/Expression of results . 3
Annex A (normative) Sharpness testing . 5
Annex B (normative) Apparatus for wear resistance testing . 7
iii
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 186, Cutlery and table and decorative metal
hollow-ware, in collaboration with the European Committee for Standardization (CEN) Technical Committee
CEN/TC 194, Utensils in contact with food, in accordance with the Agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 8442-5:2004), which has been technically
revised.
The main changes are as follows:
— description of the foil pressure cutting test and foil pull cutting test;
— introduction of a new evaluation method for cutting wear resistance test;
— revision of the wear resistance test medium.
A list of all parts in the ISO 8442 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
Materials and articles in contact with foodstuffs — Cutlery and table
holloware —
Part 5:
Specification for sharpness and cutting wear resistance test of cutlery
1 Scope
This document specifies the sharpness and wear resistance of knives, which are designed for professional and
domestic use in the preparation of food of all kinds, specifically of those knives intended for hand use.
This document describes test methods for sharpness measurement and for the evaluation of wear resistance
of the cutting edge.
This document does not apply for hunting knives, pocket knives, razors or tool or utility knives (with
trapezoidal blade for cutting carpets etc.). Knives with special shapes, e.g. herb chopping knives or highly
curved boning knives, can only be tested in the style of this document since not all properties and test methods
are applicable in a meaningful manner.
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 8442-1, Materials and articles in contact with foodstuffs — Cutlery and table holloware — Part 1:
Requirements for cutlery for the preparation of food
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8442-1 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
4 Sharpness testing
The test methods focus on the micro cutting wedge and its cutting edge. At the beginning of the test procedure
the test material is deformed. The force measured in the first moment of material separation (cutting) is
defined as sharpness.
The apparatus for sharpness testing areshall be as described in Annex A.
NOTE Specific requirements are under study.
5 Wear resistance testing
5.1 General
This test shall be carried out before any other physical or mechanical test so that edge performances are
assessed in the “as received” condition.
5.2 Test length
The portion of the cutting edge of the blade to be tested shall be straight except for a maximum deviation of
±1 mm. The stroke length is (40 ± 0,5) mm.
5.3 Apparatus
The apparatus for wear resistance testing shall be as described in Annex B.
5.4 Test medium
The test medium is described in Clause B.8.
5.5 Test procedure
Determine the portion of the blade (50 mm = 40 mm stroke + 10 mm test card width) which meets the
straightness criterion (±1 mm deviation over the stroke length of 40 mm, see 5.2) and mark with a suitable
marker. Mount the blade (edge uppermost) in the fixture and set the length to be tested level to within 0,5 mm
at either end.
NOTE The wear resistance test requires a straight blade (with a deviation tolerance of ±1 mm over a 40 mm stroke).
Highly curved knives can only be tested for reference purposes.
Load the apparatus with the test card and weights which combine to give the required 50 N test load (in the
static condition) at the star
...
PROJET FINAL
Norme
internationale
ISO/TC 186
Matériaux et objets en contact
Secrétariat: SAC
avec les denrées alimentaires —
Début de vote:
Coutellerie et orfèvrerie de table —
2026-10-27
Partie 5:
Vote clos le:
2026-12-08
Spécification de la performance
de coupe et essai de résistance à
l'usure de coupe des articles de
coutellerie
Materials and articles in contact with foodstuffs — Cutlery and
table holloware —
Part 5: Specification for sharpness and cutting wear resistance
test of cutlery
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
PROJETS DE NORMES
TRAITEMENT PARALLÈLE ISO/CEN
INTERNATIONALES DOIVENT PARFOIS ÊTRE CONSIDÉRÉS
DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
NORMES POUVANT
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
Numéro de référence
PROJET FINAL
Norme
internationale
ISO/TC 186
Matériaux et objets en contact
Secrétariat: SAC
avec les denrées alimentaires —
Début de vote:
Coutellerie et orfèvrerie de table —
2026-10-27
Partie 5:
Vote clos le:
2026-12-08
Spécification de la performance
de coupe et essai de résistance à
l'usure de coupe des articles de
coutellerie
Materials and articles in contact with foodstuffs — Cutlery and
table holloware —
Part 5: Specification for sharpness and cutting wear resistance
test of cutlery
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2026
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Numéro de référence
ii
Sommaire Page
Avant-propos .iv
1 Domaine d'application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Essai de la performance de coupe . 1
5 Essais de résistance à l'usure . 2
5.1 Généralités .2
5.2 Longueur d’essai .2
5.3 Appareillage .2
5.4 Matériau d'essai .2
5.5 Mode opératoire d'essai.2
5.6 Évaluation/expression des résultats .3
Annexe A (normative) Essai de la performance de coupe . 5
Annexe B (normative) Appareillage pour l'essai de résistance à l'usure . 7
iii
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux
de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général
confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire
partie du comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
https://www.iso.org/directives).
L'ISO attire l'attention sur le fait que la mise en application du présent document peut entraîner l'utilisation
d'un ou de plusieurs brevets. L'ISO ne prend pas position quant à la preuve, à la validité et à l'applicabilité de
tout droit de brevet revendiqué à cet égard. À la date de publication du présent document, l'ISO n’avait pas
reçu notification qu'un ou plusieurs brevets pouvaient être nécessaires à sa mise en application. Toutefois,
il y a lieu d'avertir les responsables de la mise en application du présent document que des informations
plus récentes sont susceptibles de figurer dans la base de données de brevets, disponible à l'adresse
www.iso.org/brevets. L’ISO ne saurait être tenue pour responsable de ne pas avoir identifié tout ou partie de
tels droits de brevet.
Les appellations commerciales éventuellement mentionnées dans le présent document sont données pour
information, par souci de commodité, à l'intention des utilisateurs et ne sauraient constituer un engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion de
l'ISO aux principes de l'Organisation mondiale du commerce (OMC) concernant les obstacles techniques au
commerce (OTC), voir www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 186, Coutellerie, couverts et orfèvrerie
métallique décorative et de table,, en collaboration avec le comité technique CEN/TC 194, Ustensiles en contact
avec les denrées alimentaires, du Comité européen de normalisation (CEN) conformément à l’Accord de
coopération technique entre l’ISO et le CEN (Accord de Vienne).
Cette seconde édition annule et remplace la première édition (ISO 8442-5:2004), qui a fait l’objet d’une
révision technique.
Les principales modifications sont les suivantes:
— description de l'essai de coupe d'une feuille sous pression et de l'essai de coupe d'une feuille par traction;
— introduction d'une nouvelle méthode d'évaluation pour l'essai de résistance à l'usure de coupe;
— révision du matériau utilisé pour l'essai de résistance à l'usure.
Une liste de toutes les parties de la série ISO 8442 peut être consultée sur le site de l'ISO.
Il convient que l'utilisateur adresse tout retour d'information ou toute question concernant le présent
document à l'organisme national de normalisation de son pays. Une liste exhaustive desdits organismes se
trouve à l'adresse www.iso.org/members.html.
iv
PROJET FINAL Norme internationale ISO/FDIS 8442-5:2026(fr)
Matériaux et objets en contact avec les denrées
alimentaires — Coutellerie et orfèvrerie de table —
Partie 5:
Spécification de la performance de coupe et essai de
résistance à l'usure de coupe des articles de coutellerie
1 Domaine d'application
Le présent document spécifie la performance de coupe et la résistance à l'usure des couteaux à usage
professionnel et domestique, et plus particulièrement des couteaux à usage manuel, destinés à la préparation
d'aliments de toutes sortes
Le présent document décrit les méthodes d'essai pour la mesure de la performance de coupe et pour
l'évaluation de la résistance à l'usure du bord tranchant de la lame
Le présent document ne s'applique pas aux couteaux de chasse, aux couteaux de poche, aux rasoirs, aux
couteaux à outils ou utilitaires (avec lame trapézoïdale pour couper les tapis, etc.). Les couteaux de forme
spéciale, par exemple les couteaux à couper les herbes ou les couteaux à désosser très courbés, ne peuvent
être soumis à essai que dans l'esprit du présent document, car l'application de toutes les propriétés et
méthodes d'essai n'est pas pertinente.
2 Références normatives
Les documents suivants sont cités dans le texte de sorte qu'ils constituent, pour tout ou partie de leur
contenu, des exigences du présent document. Pour les références datées, seule l'édition citée s'applique. Pour
les références non datées, la dernière édition du document de référence s'applique (y compris les éventuels
amendements).
ISO 8442-1, Matériaux et objets en contact avec les denrées alimentaires — Coutellerie et orfèvrerie de table—
Partie 1: Exigences relatives à la coutellerie utilisée pour la préparation des denrées alimentaires
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions de l’ISO 8442-1 s’appliquent.
L'ISO et l'IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en normalisation,
consultables aux adresses suivantes:
— IEC Electropedia: disponible à l'adresse http:// www .electropedia .org/
— ISO Online browsing platform: disponible à l'adresse http:// www .iso .org/ obp
4 Essai de la performance de coupe
Les méthodes d'essai se concentrent sur le micro coin taillant et son bord tranchant. Au début du mode
opératoire d'essai, le matériau d'essai est déformé. La performance de coupe correspond à la force mesurée
au premier moment de la séparation du matériau (coupe).
L'appareillage utilisé pour l'essai de la performance de coupe doit être comme décrit dans l'Annexe A.
5 Essais de résistance à l'usure
5.1 Généralités
Cet
...