SIST EN ISO 23940:2021
(Main)Dentistry - Excavators (ISO 23940:2021)
Dentistry - Excavators (ISO 23940:2021)
This document specifies dimensions and performance requirements for excavators used in dentistry.
Zahnheilkunde - Exkavatoren (ISO 23940:2021)
Dieses Dokument legt Maße und Leistungsanforderungen für in der Zahnheilkunde verwendete Exkavatoren fest.
Médecine bucco-dentaire - Excavateurs (ISO 23940:2021)
Le présent document spécifie les dimensions et les exigences de performance des excavateurs utilisés en médecine bucco-dentaire.
Zobozdravstvo - Ekskavatorji (ISO 23940:2021)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 23940:2021
01-september-2021
Nadomešča:
SIST EN ISO 13397-4:2000
Zobozdravstvo - Ekskavatorji (ISO 23940:2021)
Dentistry - Excavators (ISO 23940:2021)
Zahnheilkunde - Exkavatoren (ISO 23940:2021)
Médecine bucco-dentaire - Excavateurs (ISO 23940:2021)
Ta slovenski standard je istoveten z: EN ISO 23940:2021
ICS:
11.060.25 Zobotehnični instrumenti Dental instruments
SIST EN ISO 23940:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 23940:2021
EN ISO 23940
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 11.060.25 Supersedes EN ISO 13397-4:1997
English Version
Dentistry - Excavators (ISO 23940:2021)
Médecine bucco-dentaire - Excavateurs (ISO Zahnheilkunde - Exkavatoren (ISO 23940:2021)
23940:2021)This European Standard was approved by CEN on 13 March 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 23940:2021 E
worldwide for CEN national Members.---------------------- Page: 3 ----------------------
SIST EN ISO 23940:2021
EN ISO 23940:2021 (E)
Contents Page
European foreword ....................................................................................................................................................... 3
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EN ISO 23940:2021 (E)
European foreword
This document (EN ISO 23940:2021) has been prepared by Technical Committee ISO/TC 106
"Dentistry" in collaboration with Technical Committee CEN/TC 55 “Dentistry” 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 November 2021, and conflicting national standards
shall be withdrawn at the latest by November 2021.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.
This document supersedes EN ISO 13397-4:1997.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 23940:2021 has been approved by CEN as EN ISO 23940:2021 without any modification.
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SIST EN ISO 23940:2021
INTERNATIONAL ISO
STANDARD 23940
First edition
2021-04
Dentistry — Excavators
Médecine bucco-dentaire — Excavateurs
Reference number
ISO 23940:2021(E)
ISO 2021
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SIST EN ISO 23940:2021
ISO 23940:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 23940:2021
ISO 23940:2021(E)
Contents Page
Foreword ........................................................................................................................................................................................................................................iv
1 Scope ................................................................................................................................................................................................................................. 1
2 Normative references ...................................................................................................................................................................................... 1
3 Terms and definitions ..................................................................................................................................................................................... 1
4 Symbols .......................................................................................................................................................................................................................... 2
5 Classification ............................................................................................................................................................................................................ 2
6 Requirements for excavators ................................................................................................................................................................... 2
6.1 Design and dimensions .................................................................................................................................................................... 2
6.2 Maximum overall length ................................................................................................................................................................. 9
6.3 Location of measurement points ............................................................................................................................................. 9
6.4 Material ......................................................................................................................................................................................................... 9
6.5 Vickers hardness of the working end .................................................................................................................................. 9
6.6 Surface finish ............................................................................................................................................................................................ 9
6.7 Connection between working end and handle .........................................................................................................10
6.8 Resistance to reprocessing ........................................................................................................................................................10
7 Measurement and test methods ........................................................................................................................................................10
7.1 Visual inspection ................................................................................................................................................................................10
7.2 Dimensions ..............................................................................................................................................................................................10
7.3 Resistance to reprocessing ........................................................................................................................................................10
7.4 Connection between working end and handle .........................................................................................................10
7.4.1 Tensile force test ...........................................................................................................................................................10
7.4.2 Torque test .........................................................................................................................................................................11
8 Marking and labelling ..................................................................................................................................................................................11
8.1 Marking on the instrument .......................................................................................................................................................11
8.2 Labelling on the package .............................................................................................................................................................11
8.3 Instructions for use ..........................................................................................................................................................................11
© ISO 2021 – All rights reserved iii---------------------- Page: 9 ----------------------
SIST EN ISO 23940:2021
ISO 23940:2021(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 106, Dentistry, Subcommittee SC 4, Dental
instruments.This first edition cancels and replaces the first edition (ISO 13397-4:1997), which has
...SLOVENSKI STANDARD
oSIST prEN ISO 23940:2020
01-februar-2020
Zobozdravstvo - Ekskavatorji (ISO/DIS 23940:2019)
Dentistry - Excavators (ISO/DIS 23940:2019)
Zahnheilkunde - Exkavatoren (ISO/DIS 23940:2019)
Médecine bucco-dentaire - Excavateurs (ISO/DIS 23940:2019)
Ta slovenski standard je istoveten z: prEN ISO 23940
ICS:
11.060.25 Zobotehnični instrumenti Dental instruments
oSIST prEN ISO 23940:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------oSIST prEN ISO 23940:2020
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oSIST prEN ISO 23940:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 23940
ISO/TC 106/SC 4 Secretariat: DIN
Voting begins on: Voting terminates on:
2019-12-20 2020-03-13
Dentistry — Excavators
Médecine bucco-dentaire — Excavateurs
ICS: 11.060.25
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 23940:2019(E)
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 SUPPORTING DOCUMENTATION. ISO 2019
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oSIST prEN ISO 23940:2020
ISO/DIS 23940:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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 2019 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 23940:2020
ISO/DIS 23940:2019(E)
Contents Page
Foreword ........................................................................................................................................................................................................................................iv
1 Scope ................................................................................................................................................................................................................................. 1
2 Normative references ...................................................................................................................................................................................... 1
3 Terms, definitions and symbols ............................................................................................................................................................ 1
3.1 Terms and definitions ....................................................................................................................................................................... 1
3.2 Symbols and abbreviated terms............................................................................................................................................... 2
4 Classification ............................................................................................................................................................................................................ 2
5 Requirements for excavators ................................................................................................................................................................... 2
5.1 Design and dimensions .................................................................................................................................................................... 2
5.2 Maximum overall length ................................................................................................................................................................. 9
5.3 Location of measurement points ............................................................................................................................................. 9
5.4 Material ......................................................................................................................................................................................................... 9
5.5 Vickers hardness of the working end .................................................................................................................................. 9
5.6 Surface finish ............................................................................................................................................................................................ 9
5.7 Connection between working end and handle .........................................................................................................10
5.8 Resistance to reprocessing ........................................................................................................................................................10
6 Measurement and test methods ........................................................................................................................................................10
6.1 Visual inspection ................................................................................................................................................................................10
6.2 Dimensions ..............................................................................................................................................................................................10
6.3 Resistance to reprocessing ........................................................................................................................................................10
6.4 Connection between working end and handle .........................................................................................................10
6.4.1 Test under tensile force ...........................................................................................................................................10
6.4.2 Test under torque .........................................................................................................................................................11
7 Marking and labelling ..................................................................................................................................................................................11
7.1 Marking on the instrument .......................................................................................................................................................11
7.2 Labelling on the package .............................................................................................................................................................11
7.3 Instructions for use ..........................................................................................................................................................................11
© ISO 2019 – All rights reserved iii---------------------- Page: 5 ----------------------
oSIST prEN ISO 23940:2020
ISO/DIS 23940:2019(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 106, Dentistry, Subcommittee SC 4, Dental
instruments.This second edition cancels and replaces the first edition (ISO 13397-4:1997), which has been
technically revised.The main changes compared to the previous edition are as follows:
— publication under a separate standard number (ISO 23940) and therefore no longer as part of the
ISO 13397 standard series;— addition of new shapes, see Figure 5 to Figure 10, and Table 3;
— test values for connection between working end and handle were reduced from 600 N to 450 N
(tensile load) and from 400 Ncm to 0,25 Nm (torque) (see 5.7);— requirement for UDI-code has been added in Clause 7;
— requirement for instructions for use has been added in 7.3.
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 2019 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 23940:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 23940:2019(E)
Dentistry — Excavators
1 Scope
This document specifies dimensions and performance requirements for excavators used in dentistry.
2 Normative referencesThe 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 1942, Dentistry — VocabularyISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method
ISO 6508-
...
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