1、October 2016 English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 11.060.25!%2“2579915www.din.deDIN
2、 EN ISO 2157Dentistry Nominal diameters and designation code numbers for rotary instruments (ISO 2157:2016);English version EN ISO 2157:2016,English translation of DIN EN ISO 2157:2016-10Zahnheilkunde Nenndurchmesser und Nenngrenbezeichnung fr rotierende Instrumente (ISO 2157:2016);Englische Fassung
3、 EN ISO 2157:2016,Englische bersetzung von DIN EN ISO 2157:2016-10Mdecine buccodentaire Diamtres nominaux et designation par numro de code pour instruments rotatifs dentaires (ISO 2157:2016);Version anglaise EN ISO 2157:2016,Traduction anglaise de DIN EN ISO 2157:2016-10SupersedesDIN EN ISO 2157:199
4、504www.beuth.deDocument comprises 11 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.10.16 DIN EN ISO 2157:2016-10 2 A comma is used as the decimal marker. National foreword This document (EN ISO 2157:2016) has been prepared by
5、 Technical Committee ISO/TC 106 “Dentistry” in collaboration with Technical Committee CEN/TC 55 “Dentistry” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Dental (DIN Standards Committee Dentistry), Working Committee NA 014-00-04 AA Rotie
6、rende Instrumente. The DIN Standards corresponding to the International Standards referred to in Clause 2 of this standard are as follows: ISO 3 DIN 323-1 ISO 1942 DIN EN ISO 1942 ISO 6360-1 DIN EN ISO 6360-1 Amendments This standard differs from DIN EN ISO 2157:1995-04 as follows: a) Clause 2 “Norm
7、ative references has been included; b) a general reference to ISO 1942 has been included; c) Clause 3 “Terms and definitions has been added. Previous editions DIN 13950: 1968-02 DIN 13950-2: 1972-06, 1985-06, 1990-04 DIN EN ISO 2157: 1995-04 National Annex NA (informative) Bibliography DIN 323-1, Pr
8、eferred numbers and series of preferred numbers Basic values, calculated values, rounded values DIN EN ISO 1942, Dentistry Vocabulary DIN EN ISO 6360-1, Dentistry Number coding system for rotary instruments Part 1: General characteristics EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2157
9、 May 2016 ICS 11.060.20 Supersedes EN ISO 2157:1995English Version Dentistry - Nominal diameters and designation code numbers for rotary instruments (ISO 2157:2016) Mdecine bucco-dentaire - Diamtres nominaux et designation par numro de code pour instruments rotatifs dentaires (ISO 2157:2016) Zahnhei
10、lkunde - Nenndurchmesser und Nenngrenbezeichnung fr rotierende Instrumente (ISO 2157:2016) This European Standard was approved by CEN on 15 April 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the statu
11、s 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, Ger
12、man). 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, Croati
13、a, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and Uni
14、ted Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN
15、 ISO 2157:2016 EForeword .4Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 64 Nominal diameters and designation 7Contents PageEN ISO 2157:2016 (E) DIN EN ISO 2157:2016-10 2European foreword .3European foreword This document (EN ISO 2157:2016) has been prepared by Technical
16、 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
17、2016, and conflicting national standards shall be withdrawn at the latest by November 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent ri
18、ghts. This document supersedes EN ISO 2157:1995. 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, F
19、ormer Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 215
20、7:2016 has been approved by CEN as EN ISO 2157:2016 without any modification. EN ISO 2157:2016 (E) DIN EN ISO 2157:2016-10 3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internationa
21、l 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,
22、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
23、. 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 elem
24、ents 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 receive
25、d (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 meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adhere
26、nce to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 106, Dentistry, Subcommittee SC 4, Dental instruments.This fourth edition cancels and replaces the third edition (ISO 21
27、57:1992), which has been technically revised with the following changes:a) Clause 2, Normative references was added;b) General reference to ISO 1942 vocabulary was added;c) Clause 3, Terms and definitions was added.EN ISO 2157:2016 (E) DIN EN ISO 2157:2016-10 4 IntroductionThis International Standar
28、d is one of several basic standards for dental rotary instruments and describes a series of nominal diameters for the working parts of dental rotary instruments. It also lists the designations corresponding to those diameters. These designations give the diameters, in tenths of millimetres, in the f
29、orm of a three-digit number which is used as part of the number code in ISO 6360 (all parts).EN ISO 2157:2016 (E) DIN EN ISO 2157:2016-10 5 1 ScopeThis International Standard specifies the nominal diameters of the working parts of dental rotary instruments, for example burs, laboratory burs, grindin
30、g instruments, diamond instruments, mandrels and the corresponding designation.Excluded are the diameters of endodontic instruments and scaler tips.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applicatio
31、n. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 3, Preferred numbers Series of preferred numbersISO 1942, Dentistry VocabularyISO 6360-1, Dentistry Number coding system for rotary in
32、struments Part 1: General characteristics3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 1942 and ISO 6360-1 and the following apply.3.1code numberseries of numbers for specific detail information for dental rotary instruments (3.4) or their accessori
33、esSOURCE: ISO 6360-1:2004, 3.3.3.2designation code numberresulting designation as derived from the nominal diameter (3.3)3.3nominal diametertheoretical value of the diameter3.4rotary instrumenttool used for rotary or oscillating movements, consisting of a working end, neck (if applicable) and shank,
34、 which is constructed to fit into a handpieceNote 1 to entry: This includes continuous rotation or oscillating instruments.Note 2 to entry: See Figure 1.EN ISO 2157:2016 (E) DIN EN ISO 2157:2016-10 6 Key1 working end2 neck3 shankFigure 1 Designation of parts of rotary instrument4 Nominal diameters a
35、nd designationThe nominal diameters, in millimetres, and the designation by code number of the working parts of dental rotary instruments shall be selected from those listed in Table 1, Table 2 and Table 3.In the range of 2,5 mm to 9,5 mm, it is recommended to use the diameters of the R 20 series. T
36、his reduces the number of diameters in this area from 21 to 12 (see Table 2).Table 1 Nominal diameters and designation code number, range 0,5 mm to 2,3 mmNominal diametermmDesignation code number0,5 0050,6 0060,7 0070,8 0080,9 0091,0 0101,2 0121,4 0141,6 0161,8 0182,1 0212,3 023EN ISO 2157:2016 (E)
37、DIN EN ISO 2157:2016-10 7 Table 2 Nominal diameter and designation code number, range 2,5 mm to 9,5 mmNominal diametermmPreferred sizes ISO 3: R 20 seriesaDesignation code number2,5 2,50 0252,7 0272,80 0282,9 0293,1 0313,15 0313,3 0333,5 0353,55 0353,7 0374,0 4,00 0404,2 0424,5 4,50 0454,7 0475,0 5,
38、00 0505,5 0555,60 0566,0 0606,30 0636,5 0657,0 0707,10 0717, 5 0758,0 8,00 0808,5 0859,0 9,00 0909,5 095aIt is recommended (in the range of 2,5 mm to 9,5 mm) to substitute the diameters of the R 20 series, in order to reduce the number of diameters in this area from 21 to 12.EN ISO 2157:2016 (E) DIN
39、 EN ISO 2157:2016-10 8 Table 3 Nominal diameter and designation code number, range 10 mm to 30 mmNominal diametermmISO 3: R 20 seriesDesignation code number10,0 10011,2 11212,0 12012,5 12514,0 14016,0 16018,0 18020,0 20022,0 22022,4 22425,0 25026,0 26028,0 28030,0 300EN ISO 2157:2016 (E) DIN EN ISO 2157:2016-10 9
