1、Assembly tools for screws and nuts Hand torque toolsPart 1: Requirements and methods for design conformance testing and quality conformance testing: minimum requirements for declaration of conformance(ISO 6789-1:2017) BS EN ISO 6789-1:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.ind
2、d 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN ISO 6789-1:2017. Together with BS EN ISO 6789-2:2017, it supersedes BS EN ISO 6789:2003 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MTE/15, Hand tools.A list o
3、f organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limite
4、d 2017ISBN 978 0 580 84935 0ICS 25.140.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate Text aff
5、ectedBRITISH STANDARDBS EN ISO 6789-1:2017EUROPEAN 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 q
6、uality conformance 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 minim
7、ales pour dclaration 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 Janua
8、ry 2017. 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 obta
9、ined 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 CE
10、N-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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland
11、, Italy, Latvia, 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 Managemen
12、t Centre: Avenue 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 EBS EN ISO 6789-1:2017EN ISO 6789-1:2017 (E) 2 Contents Page European foreword . 3 BS EN ISO 6789-1:2017EN ISO 6789-1:
13、2017 (E) 3 European foreword This document (EN ISO 6789-1:2017) has been prepared by Technical 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, an
14、d conflicting national standards shall be withdrawn at the latest by March 2018. 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 rights. This
15、document supersedes EN ISO 6789:2003. 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, Former Yugos
16、lav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, 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
17、:2017 has been approved by CEN as EN ISO 6789-1:2017 without any modification. BS EN ISO 6789-1:2017ISO 6789-1:2017(E)Foreword ivIntroduction vi1 Scope . 12 Normative references 13 Terms, definitions and symbols 13.1 Terms and definitions . 13.2 Symbols, designations and units . 34 Classification 35
18、 Requirements 35.1 Design conformance testing 35.1.1 General 35.1.2 Maximum torque values 45.1.3 Specified torque range 45.1.4 Scales, dials and displays 45.1.5 Maximum permissible deviation . 55.1.6 Overloading test . 55.1.7 Endurance test . 55.1.8 Effect of geometric changes 65.2 Quality conforman
19、ce testing . 75.3 Conformance test during use 76 Torque measurement 76.1 Torque measurement system . 76.2 Application of torque . 86.3 Ambient conditions . 86.4 Measurement requirements 96.5 Measurement sequence 116.5.1 General. 116.5.2 Indicating torque tools, Type I 116.5.3 Setting torque tools, T
20、ype II 117 Calculation of deviation .127.1 General 127.2 Calculation example 1 127.3 Calculation example 2 138 Declaration of conformance 149 Marking .15Annex A (normative) Examples of indicating torque tools (Type I) .16Annex B (normative) Examples of setting torque tools (Type II) 17Annex C (infor
21、mative) Measurement sequence flowchart for torque tools 19Bibliography .22 ISO 2017 All rights reserved iiiContents PageBS EN ISO 6789-1:2017ISO 6789-1:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies).
22、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-g
23、overnmental, 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
24、 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
25、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 IS
26、O 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
27、 related to conformity assessment, as well as information about ISOs 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 29, Small tools,
28、 Subcommittee SC 10, Assembly tools for screws and nuts, pliers and nippers.This first edition of ISO 6789-1, together with 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 specif
29、ies the requirements for design and manufacture including the content of a declaration of conformance. ISO 6789-2 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 measuremen
30、t device used for calibrating hand torque tools.b) The output drive designation of torque tools is expanded to include hexagonal 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 ch
31、anged.e) The importance of avoiding parasitic forces has been emphasized.f) Explanatory flowcharts for the measurement sequence 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
32、) The requirement for a “certificate of calibration” 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.iv ISO 2017 All rights re
33、servedBS EN ISO 6789-1:2017ISO 6789-1:2017(E)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. ISO 2017 All rights reserved vBS EN ISO 6789-1:2017ISO 6789-1:2017(E)IntroductionThe revision of ISO 6789:2003 has been designed
34、 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 designers and manufacturers with relevant minimum requirements for the development, productio
35、n 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 compare the calibrations from different laboratories. Additionally, minimum requirements for
36、the calibration of torque measurement devices are described in ISO 6789-2:2017, Annex C.vi ISO 2017 All rights reservedBS EN ISO 6789-1:2017INTERNATIONAL STANDARD ISO 6789-1:2017(E)Assembly tools for screws and nuts Hand torque tools Part 1: Requirements and methods for design conformance testing an
37、d quality conformance testing: minimum requirements for declaration of conformance1 ScopeThis document specifies the conformance testing and marking requirements for hand torque tools used for controlled tightening of screws and nuts. It also specifies the minimum requirements for declaration of con
38、formance for hand torque tools.This document applies to hand torque tools which are classified as indicating torque tools (Type I) and setting torque tools (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 an
39、d 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 r
40、equirements of calibration certificates for hand torque tools. These are described in ISO 6789-2.2 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
41、 cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1173, Assembly tools for screws and nuts Drive ends for hand- and machine-operated screwdriver bits and connecting parts Dimensions, torque testingISO 1174-1, Assembly tools f
42、or screws and nuts Driving squares Part 1: Driving squares for hand socket toolsISO 6789-2:2017, Assembly tools for screws and nuts Hand torque tools Part 2: Requirements for calibration and determination of measurement uncertaintyISO/IEC 17025, General requirements for the competence of testing and
43、 calibration laboratories3 Terms, definitions and symbols3.1 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :
44、/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp ISO 2017 All rights reserved 1BS EN ISO 6789-1:2017ISO 6789-1:2017(E)3.1.1design conformance testtechnical examination of conformance with those requirements to be met during design or modification of
45、hand torque tools3.1.2quality conformance testtechnical examination of conformance with those requirements to be met during manufacture of hand torque tools3.1.3declaration of conformancedocumented information provided by the manufacturer that the torque tool complies with the requirements of this d
46、ocument3.1.4maximum permissible deviationmaximum value of relative measurement deviation of the observed torque value on the torque measurement device measured as a percentage of the target torque value on the torque toolNote 1 to entry: Sometimes the term “accuracy” is still used in place of the te
47、rm “maximum permissible deviation” which is, however, not technically correct. The concept “measurement accuracy” is not a quantity and is not given a numerical quantity value. A measurement is said to be more accurate when it offers a smaller measurement deviation.Note 2 to entry: Maximum permissib
48、le deviation is different from measurement error which is used in ISO 6789-2 and defined in ISO/IEC Guide 99.3.1.5torque measurement systemcombination of a torque measurement device and the loading system for application of torque that acts as the measurement standard for the hand torque toolNote 1
49、to entry: A calibration system as defined in ISO 6789-2 can also be used as a torque measurement system in this document.3.1.6torque measurement deviceworking measurement standard provided either mechanically or by an electronic torque transducer and display3.1.7indicating torque tool (Type I)tool that indicates by means of a mechanical scale, dial or electronic display, the value of torque exerted by the tool at the output drive3.1.8setting torque tool (Type II)tool sensing torque transmitted by comparing the t
