1、BS EN ISO 2157:2016Dentistry Nominal diametersand designation code numbersfor rotary instruments (ISO2157:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 2157:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN IS
2、O 2157:2016.It supersedes BS EN ISO 2157:1995 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee CH/106/4, Dental Instruments and Equipment.A list of organizations represented on this committee can beobtained on request to its secretary.This publication do
3、es not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 87562 5ICS 11.060.20Compliance with a British Standard cannot confer immunity fromlegal
4、obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2016.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2157 May 2016 ICS 11.060.20 Supersedes EN ISO 2157:1995Englis
5、h 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) Zahnheilkunde - Nenndurchmesser und Bezeichnungscodenummern fr r
6、otierende 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 status of a national standard without any alteration. Up-t
7、o-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 transla
8、tion 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,
9、 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION C
10、OMIT 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 ISO 2157:2016 EBS EN ISO 2157:2016EN ISO 2157:2016 (
11、E) 3 European foreword This document (EN ISO 2157:2016) 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, ei
12、ther by publication of an identical text or by endorsement, at the latest by November 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
13、and/or CENELEC shall not be held responsible for identifying any or all such patent rights. 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: Aus
14、tria, 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, Slovakia, Slovenia, Spain, Swed
15、en, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2157:2016 has been approved by CEN as EN ISO 2157:2016 without any modification. BS EN ISO 2157:2016ISO 2157:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Nominal diam
16、eters and designation 2 ISO 2016 All rights reserved iiiContents PageBS EN ISO 2157:2016ISO 2157:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normal
17、ly 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
18、 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 d
19、ifferent 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
20、 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/pa
21、tents).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 adherence to the WTO princi
22、ples 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 2157:1992), which has b
23、een 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.iv ISO 2016 All rights reservedBS EN ISO 2157:2016ISO 2157:2016(E)IntroductionThis International Standard
24、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 for
25、m of a three-digit number which is used as part of the number code in ISO 6360 (all parts). ISO 2016 All rights reserved vBS EN ISO 2157:2016BS EN ISO 2157:2016Dentistry Nominal diameters and designation code numbers for rotary instruments1 ScopeThis International Standard specifies the nominal diam
26、eters of the working parts of dental rotary instruments, for example burs, laboratory burs, grinding instruments, diamond instruments, mandrels and the corresponding designation.Excluded are the diameters of endodontic instruments and scaler tips.2 Normative referencesThe following documents, in who
27、le or in part, are normatively referenced in this document and are indispensable for its application. 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 pref
28、erred numbersISO 1942, Dentistry VocabularyISO 6360-1, Dentistry Number coding system for rotary instruments 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 numberserie
29、s of numbers for specific detail information for dental rotary instruments (3.4) or their accessoriesSOURCE: 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 use
30、d for rotary or oscillating movements, consisting of a working end, neck (if applicable) and shank, 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.INTERNATIONAL STANDARD ISO 2157:2016(E) ISO 2016
31、 All rights reserved 1BS EN ISO 2157:2016ISO 2157:2016(E)Key1 working end2 neck3 shankFigure 1 Designation of parts of rotary instrument4 Nominal diameters and designationThe nominal diameters, in millimetres, and the designation by code number of the working parts of dental rotary instruments shall
32、 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. This 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 m
33、m 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 0232 ISO 2016 All rights reservedBS EN ISO 2157:2016ISO 2157:2016(E)Table 2 Nominal diameter and designation code number, range 2,5 mm to 9,5 mmNominal diametermmPrefe
34、rred 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 5,00 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 (i
35、n 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. ISO 2016 All rights reserved 3BS EN ISO 2157:2016ISO 2157:2016(E)Table 3 Nominal diameter and designation code number, range 10 mm to 30 mmNominal d
36、iametermmISO 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 3004 ISO 2016 All rights reservedBS EN ISO 2157:2016This page deliberately left blankThis page deliberately left blankBSI is the national bod
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