EN ISO 8325:2004
(Main)Dentistry - Test methods for rotary instruments (ISO 8325:2004)
Dentistry - Test methods for rotary instruments (ISO 8325:2004)
ISO 8325:2004 specifies methods for measuring the dimensional characteristics, neck strength and surface roughness of dental rotary instruments, such as burs, cutters, polishers, diamond and abrasive instruments.
ISO 8325:2004 does not provide test methods for the characteristics of materials used for dental rotary instruments.
NOTE For testing of these characteristics, see the respective product standards.
ISO 8325:2004 is not applicable to dental root-canal instruments (see ISO 3630-1).
Zahnheilkunde - Prüfverfahren für rotierende Instrumente (ISO 8325:2004)
In der vorliegenden Internationalen Norm werden Prüfverfahren für rotierende Dentalinstrumente festgelegt, wie zum Beispiel Bohr-, Schneid-, Polier-, Diamantschleif- und Schleifinstrumente. In den entsprechenden Produktnormen für rotierende Dentalinstrumente wird auf die in dieser Internationalen Norm festgelegten Prüfverfahren verwiesen.
Prüfverfahren der Eigenschaften der für rotierende Dentalinstrumente verwendeten Materialien sind nicht Bestandteil dieser Internationalen Norm. Zur Prüfung dieser Eigenschaften sollten die entsprechenden Produktnormen einbezogen werden.
Diese Internationale Norm enthält keine Prüfverfahren für zahnärztliche Wurzelkanalinstrumente. Zur Prüfung dieser Instrumente wird auf ISO 3630-1 verwiesen.
Art dentaire - Méthodes d'essai pour instruments rotatifs (ISO 8325:2004)
L'ISO 8325:2004 spécifie les méthodes d'essai relatives aux instruments dentaires rotatifs comme les fraises, les fraises techniques, les polissoirs et les instruments diamantés et abrasifs.
L'ISO 8325:2004 ne traite pas des méthodes d'essai relatives aux caractéristiques des matériaux utilisés pour les instruments dentaires rotatifs.
NOTE En ce qui concerne les essais relatifs à ces caractéristiques, voir les normes de produit respectives.
L'ISO 8325:2004 n'est pas applicable aux méthodes d'essai relatives aux instruments pour canaux radiculaires (voir l'ISO 3630-1).
Zobozdravstvo - Preskusne metode za vrtilne instrumente (ISO 8325:2004)
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Zobozdravstvo - Preskusne metode za vrtilne instrumente (ISO 8325:2004)Zahnheilkunde - Prüfverfahren für rotierende Instrumente (ISO 8325:2004)Art dentaire - Méthodes d'essai pour instruments rotatifs (ISO 8325:2004)Dentistry - Test methods for rotary instruments (ISO 8325:2004)11.060.25Dental instrumentsICS:Ta slovenski standard je istoveten z:EN ISO 8325:2004SIST EN ISO 8325:2005en01-marec-2005SIST EN ISO 8325:2005SLOVENSKI
STANDARDSIST EN 28325:2000/AC1:2000SIST EN 28325:20001DGRPHãþD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 8325September 2004ICS 11.060.20Supersedes EN 28325:1990
English versionDentistry - Test methods for rotary instruments (ISO 8325:2004)Art dentaire - Méthodes d'essai pour instruments rotatifs(ISO 8325:2004)Zahnheilkunde - Prüfverfahren für rotierende Instrumente(ISO 8325:2004)This European Standard was approved by CEN on 2 September 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 8325:2004: ESIST EN ISO 8325:2005
Foreword
This document (EN ISO 8325:2004) 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 March 2005, and conflicting national standards shall be withdrawn at the latest by March 2005.
This document supersedes EN 28325:1990.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 8325:2004 has been approved by CEN as EN ISO 8325:2004 without any modifications.
Reference numberISO 8325:2004(E)© ISO 2004
INTERNATIONAL STANDARD ISO8325Second edition2004-09-15Dentistry — Test methods for rotary instruments Art dentaire — Méthodes d'essai pour instruments rotatifs
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ii © ISO 2004 – All rights reserved
ISO 8325:2004(E) © ISO 2004 – All rights reserved iii Contents Page Foreword.iv Introduction.v 1 Scope.1 2 Normative references.1 3 Terms and definitions.1 4 Test methods.1 4.1 General.1 4.2 Atmospheric conditions.2 4.3 Measurement instruments.2 5 Measuring of single characteristics of instruments.2 5.1 Shape of the working part.2 5.2 Diameter of the working part.3 5.3 Neck diameter.3 5.4 Dimensions of the shank and the mandrel.4 5.5 Length of the working part.4 5.6 Overall length.4 5.7 Angle of the taper of the working part.5 5.8 Run-out of the working part.5 5.9 Neck strength.7 5.10 Surface roughness.8 Bibliography.9
ISO 8325:2004(E) iv © ISO 2004 – All rights reserved 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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. ISO 8325 was prepared by Technical Committee ISO/TC 106, Dentistry, Subcommittee SC 4, Dental instruments. This second edition cancels and replaces the first edition (ISO 8325:1985), which has been technically revised. SIST EN ISO 8325:2005
ISO 8325:2004(E) © ISO 2004 – All rights reserved v Introduction To check the conformity of dental rotary instruments against relevant product standards, it is indispensable to conduct tests on the basis of harmonised test methods in order to achieve comparable test results. In the respective product standards for dental rotary instruments, reference is made to the test methods specified in this International Standard.
INTERNATIONAL STANDARD ISO 8325:2004(E) © ISO 2004 – All rights reserved 1 Dentistry — Test methods for rotary instruments 1 Scope This International Standard specifies methods for measuring the dimensional characteristics, neck strength and surface roughness of dental rotary instruments, such as burs, cutters, polishers, diamond and abrasive instruments.
This International Standard does not provide test methods for the characteristics of materials used for dental rotary instruments. NOTE For testing of these characteristics, see the respective product standards. This International Standard is not applicable to dental root-canal instruments (see ISO 3630-1). 2 Normative references The following referenced documents are indispensable for the application 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 1797-1, Dental rotary instruments — Shanks — Part 1: Shanks made of metals ISO 1797-2, Dental rotary instruments — Shanks — Part 2: Shanks made of plastics ISO 1942, Dentistry — Vocabulary ISO 3274, Geometrical Product Specification (GPS) — Surface texture: Profile method — Nominal characteristics of contact (stylus) instruments ISO 4288, Geometrical Product Specification (GPS — Surface texture: Profile method — Rules and procedures for the assessment of surface texture 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 1942 apply. 4 Test methods 4.1 General The test methods specified in this International Standard refer to the main dimensional characteristics of dental rotary instruments. They are demonstrated by describing the measurement procedures for the single characteristics of instruments. SIST EN ISO 8325:2005
ISO 8325:2004(E) 2 © ISO 2004 – All rights reserved In addition to the test methods specified below, other equivalent methods and test devices exist and may be used, provided they render similar results. In case of dispute, however, the test methods specified in this International Standard become reference. For evaluation of test results, see the relevant product standard. 4.2 Atmospheric conditions Tests shall be conducted at room temperature (20 °C to 25 °C). 4.3 Measurement instruments A list of measurement instruments is provided as follows: a) micrometer; b) vernier calliper; c) dial gauge; d) comparator; e) toolmaker's microscope, workshop microscope, measuring microscope; f) shadowgraph (e.g. profile projector); g) ring gauge; h) pneumatic gauge; i) goniometer; j) laser scanner. Other precision instruments may equally be applicable, and may be used at the discretion of the manufacturer. Measurement instruments with reasonable accuracy shall be chosen in respect to the characteristics of the instruments to be measured. Lengths and diameters shall be measured and calculated in millimetres, angles in degrees. 5 Measuring of single characteristics of instruments 5.1 Shape of the working part 5.1.1 Measurement instrument Any suitable instrument of those listed in 4.3 shall be used, having an accuracy of u 0,01 mm. The applied measuring force shall not exceed 1,5 N. 5.1.2 Measurement location The measurement location shall cover the whole representative integral shape of the test piece. SIST EN ISO 8325:2005
ISO 8325:2004(E) © ISO 2004 – All rights reserved 3 5.1.3 Procedure Determine the shape of the working part visually or by using an instrument specified in 5.1.1. Conduct one measurement. 5.2 Diameter of the working part 5.2.1 Measurement instrument Any suitable instrument of those listed in 4.3 shall be used, having an accuracy of u 0,01 mm. The applied measuring force shall not exceed 1,5 N. In case of dispute, the reference method shall be that using a dial gauge. 5.2.2 Measurement location The measurement point shall be as follows, unless specified otherwise in the respective product standard: a) for cylindrical instruments: the middle of the working part; b) for non-cylindrical instruments: the largest diameter of the working part. 5.2.3 Procedure Measure the diameter of the working part using an instrument as specified in 5.2.1. Conduct one measurement on the peripheral surface, i.e. on the top surface. For diamond instruments, conduct three measurements at angles 120° apart on the circumference of the test piece. Lift the blade before rotating the test piece to the next measurement point. Record the three measuring results as d1, d2 and d3. 5.2.4 Evaluation of test results for diamond instruments For diamond instruments, calculate the aver
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