1、July 2017 English price group 15No 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 25.140.30!%h?n“2692875www.din.deDIN
2、 EN ISO 6789-1Assembly tools for screws and nuts Hand torque tools Part 1: Requirements and methods for design conformance testing and quality conformance testing: minimum requirements for declaration of conformance (ISO 67891:2017);English version EN ISO 67891:2017,English translation of DIN EN ISO
3、 6789-1:2017-07Schraubwerkzeuge Handbettigte DrehmomentSchraubwerkzeuge Teil 1: Anforderungen und Prfverfahren fr die Typprfung und Annahmeprfung: Mindestanforderungen an Konformittserklrungen (ISO 67891:2017);Englische Fassung EN ISO 67891:2017,Englische bersetzung von DIN EN ISO 6789-1:2017-07Outi
4、ls de manoeuvre pour vis et crous Outils dynamomtriques commande manuelle Partie 1: Exigences et mthodes dessai pour vrifier la conformit de conception et la conformit de qualit: exigences minimales pour dclaration de conformit (ISO 67891:2017);Version anglaise EN ISO 67891:2017,Traduction anglaise
5、de DIN EN ISO 6789-1:2017-07Together withDIN EN ISO67892:201707,supersedesDIN EN ISO 6789:200310See start of applicationwww.beuth.deDocument comprises 31 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.07.17 DIN EN ISO 6789-1:2
6、017-07 2 A comma is used as the decimal marker. Start of application The start of application of this standard is 2017-07-01. For DIN EN ISO 6789:2003-10 there is a transition period ending on 2018-03-31. National foreword This document (ISO 6789-1:2017) has been prepared by Technical Committee ISO/
7、TC 29 “Small tools”, Subcommittee SC 10 “Small tools”/SC 10 “Assembly tools for screws and nuts, pliers and nippers”. The responsible German body involved in its preparation was DIN-Normenausschuss Werkzeuge und Spannzeuge (DIN Standards Committee Tools and Clamping Devices), Working Committee NA 12
8、1-05-01 AA “Assembly tools for screws and nuts, Fastening tools”. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 1173 DIN ISO 1173 DIN EN ISO 6789 consists of the following parts, under the general title Assembly tools for screws and nuts
9、 Hand torque tools: Part 1: Requirements and methods for design conformance testing and quality conformance testing: minimum requirements for declaration of conformance; Part 2: Requirements for calibration and determination of measurement uncertainty. This document includes national footnotes rende
10、ring it more precise and correcting mistakes. Amendments This standard differs from DIN EN ISO 6789:2003-10 as follows: a) ISO 6789:2003 has been subdivided into two parts. This document specifies the requirements for design and manufacture including the content of a declaration of conformity. ISO 6
11、789-2 specifies the requirements for traceable certificates of calibration. It includes a method for calculation of uncertainties and provides a method for calibration of the torque measurement device used for calibrating hand torque tools; b) the output drive designation of torque tools is expanded
12、 to include hexagonal and other output drives; c) the definition of the of the torque range of the tools has been changed; d) the rate of loading (shown by the time to achieve the last 20 %) has been changed; e) the importance of avoiding parasitic forces has been emphasized; f) explanatory flowchar
13、ts for the measurement sequence of different torque tools have been added in Annex C; DIN EN ISO 6789-1:2017-07 3 g) the requirement for a “declaration of conformance” to the effect that the torque tool conforms with this document has been added; h) the requirement for a “certificate of calibration”
14、 has been removed, recognizing that manufacturers calibration certificates have not previously contained enough information to be traceable calibration certificates; i) ISO 6789 has been editorially updated and restructured; j) Figures B.2, B.3, B.5 and B.6 have been changed. Previous editions DIN I
15、SO 6789: 1988-05, 1993-12 DIN 7454: 1988-05 DIN EN ISO 6789: 2003-10 National Annex NA (informative) Bibliography DIN ISO 1173, Assembly tools for screws and nuts Drive ends for hand- and machine-operated screwdriver bits and connecting parts Dimensions, torque testing DIN EN ISO 6789-1:2017-07 4 Th
16、is page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 6789-1 March 2017 ICS 25.140.30 Supersedes EN ISO 6789:2003English Version Assembly tools for screws and nuts - Hand torque tools - Part 1: Requirements and methods for design conformance testing and quality conf
17、ormance testing: minimum requirements for declaration of conformance (ISO 6789-1:2017) Outils de manoeuvre pour vis et crous - Outils dynamomtriques commande manuelle - Partie 1: Exigences et mthodes dessai pour vrifier la conformit de conception et la conformit de qualit: exigences minimales pour d
18、claration de conformit (ISO 6789-1:2017) Schraubwerkzeuge - Handbettigte Drehmoment-Werkzeuge - Teil 1: Anforderungen und Prfverfahren fr die Typprfung und Annahmeprfung: Mindestanforderungen an Konformittserklrungen (ISO 6789-1:2017) This European Standard was approved by CEN on 14 January 2017. CE
19、N 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 app
20、lication 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 M
21、anagement 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, La
22、tvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: A
23、venue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 6789-1:2017 EEuropean foreword .3Introduction .51 Scope . 62 Normative references 63 Terms, definitions and symbols 63.1 Terms and definition
24、s . 63.2 Symbols, designations and units . 84 Classification 85 Requirements 85.1 Design conformance testing 85.1.1 General 85.1.2 Maximum torque values 95.1.3 Specified torque range 95.1.4 Scales, dials and displays 95.1.5 Maximum permissible deviation 105.1.6 Overloading test 105.1.7 Endurance tes
25、t 105.1.8 Effect of geometric changes . 115.2 Quality conformance testing 125.3 Conformance test during use . 126 Torque measurement . 126.1 Torque measurement system 126.2 Application of torque 136.3 Ambient conditions 136.4 Measurement requirements . 146.5 Measurement sequence 166.5.1 General. 166
26、.5.2 Indicating torque tools, Type I 166.5.3 Setting torque tools, Type II 167 Calculation of deviation .177.1 General 177.2 Calculation example 1 177.3 Calculation example 2 188 Declaration of conformance 199 Marking .19Annex A (normative) Examples of indicating torque tools (Type I) .21Annex B (no
27、rmative) Examples of setting torque tools (Type II) 22Annex C (informative) Measurement sequence flowchart for torque tools 24Bibliography .27Contents PageDIN EN ISO 6789-1:2017-07 EN ISO 6789-1:2017 (E) 2Foreword .4European foreword This document (EN ISO 6789-1:2017) has been prepared by Technical
28、Committee ISO/TC 29 “Small tools”. 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 September 2017, and conflicting national standards shall be withdrawn at the latest by March 2018. Attention is d
29、rawn 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 rights. This document supersedes EN ISO 6789:2003. According to the CEN-CENELEC Internal Regulations, the na
30、tional standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, L
31、ithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 6789-1:2017 has been approved by CEN as EN ISO 6789-1:2017 without any modification. DIN EN ISO 6789-
32、1:2017-07 EN ISO 6789-1:2017 (E) 3 ForewordISO (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 int
33、erested 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 Electrotechnic
34、al 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 docu
35、ments 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 respon
36、sible 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 give
37、n 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 ISOs adherence to the World Trade Organization (WTO) princip
38、les 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 29, Small tools, Subcommittee SC 10, Assembly tools for screws and nuts, pliers and nippers.This first edition of ISO 6789-1, together with
39、ISO 6789-2, cancels and replaces ISO 6789:2003 which has been technically revised with changes as follows.a) ISO 6789:2003 has been divided into two parts. This document specifies the requirements for design and manufacture including the content of a declaration of conformance. ISO 6789-2 specifies
40、the requirements for traceable certificates of calibration. It includes a method for calculation of uncertainties and provides a method for calibration of the torque measurement device used for calibrating hand torque tools.b) The output drive designation of torque tools is expanded to include hexag
41、onal and other output drives.c) The definition of the torque range of the tools has been changed.d) The rate of loading (shown by the time to achieve the last 20 %) has been changed.e) The importance of avoiding parasitic forces has been emphasized.f) Explanatory flowcharts for the measurement seque
42、nce of different torque tools have been added in Annex C.g) The requirement for a “declaration of conformance” that the torque tool conforms with this document has been added.h) The requirement for a “certificate of calibration” has been removed, recognizing that manufacturers calibration certificat
43、es have not previously contained enough information to be traceable calibration certificates.i) ISO 6789 has been editorially updated and restructured.j) Figures B.2, B.3, B.5 and B.6 have been changed.A list of all parts in the ISO 6789 series can be found on the ISO website.DIN EN ISO 6789-1:2017-
44、07 EN ISO 6789-1:2017 (E) 4 IntroductionThe revision of ISO 6789:2003 has been designed to achieve the following improvements.ISO 6789 has been split to provide two levels of documentation. It recognizes the different needs of different users of the standard.This document continues to provide design
45、ers and manufacturers with relevant minimum requirements for the development, production and documentation of hand torque tools.ISO 6789-2 provides detailed methods for calculation of uncertainties and requirements for calibrations. This will allow users of calibration services to more easily compar
46、e the calibrations from different laboratories. Additionally, minimum requirements for the calibration of torque measurement devices are described in ISO 6789-2:2017, Annex C.DIN EN ISO 6789-1:2017-07 EN ISO 6789-1:2017 (E) 5 1 ScopeThis document specifies the conformance testing and marking require
47、ments for hand torque tools used for controlled tightening of screws and nuts. It also specifies the minimum requirements for declaration of conformance for hand torque tools.This document applies to hand torque tools which are classified as indicating torque tools (Type I) and setting torque tools
48、(Type II).NOTE Hand torque tools covered by this document are those identified in ISO 1703:2005 by reference numbers 6 1 00 11 0, 6 1 00 11 1 and 6 1 00 12 0, 6 1 00 12 1 and 6 1 00 14 0, 6 1 00 15 0. ISO 1703 is currently under revision. In the next edition, torque tools will be moved to an own clause, and with this change the reference numbers will also change and additional reference numbers will be added.This document does not specify requirements of calibration certificates for hand torque
