EN ISO 6789-2:2017
(Main)Assembly tools for screws and nuts - Hand torque tools - Part 2: Requirements for calibration and determination of measurement uncertainty (ISO 6789-2:2017)
Assembly tools for screws and nuts - Hand torque tools - Part 2: Requirements for calibration and determination of measurement uncertainty (ISO 6789-2:2017)
ISO 6789-2:2017 specifies the method for the calibration of hand torque tools and describes the method of calculation of measurement uncertainties for the calibration.
ISO 6789-2:2017 specifies the minimum requirements for the calibration of the torque measurement device where the relative measurement uncertainty interval, W´md, is not already provided by a traceable calibration certificate.
ISO 6789 is applicable for the step by step (static) and continuous (quasi-static) calibration of torque measurement devices, the torque of which is defined by measuring of the elastic form change of a deformable body or a measured variable which is in proportion to the torque.
ISO 6789-2:2017 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 the ones 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.
Schraubwerkzeuge - Handbetätigte Drehmoment-Schraubwerkzeuge - Teil 2: Anforderungen an die Kalibrierung und die Bestimmung der Messunsicherheit (ISO 6789-2:2017)
Dieses Dokument legt das Verfahren für die Kalibrierung von handbetätigten Drehmoment-Schraubwerkzeugen fest und beschreibt das Verfahren für die Berechnung von Messunsicherheiten für die Kalibrierung.
Dieses Dokument legt die Mindestanforderungen an die Kalibrierung der Drehmomentmesseinrichtung für den Fall fest, dass das Intervall der maximalen relativen Messunsicherheit W´md nicht bereits mit einem rückverfolgbaren Kalibrierschein dokumentiert wurde.
ISO 6789 gilt für die schrittweise (statische) und die kontinuierliche (quasi-statische) Kalibrierung von Drehmomentmesseinrichtungen, deren Drehmoment anhand der Messung der elastischen Formänderung eines verformbaren Körpers oder einer dem Drehmoment proportionalen gemessenen Variablen festgelegt wird.
Dieses Dokument gilt für die handbetätigten Drehmoment Schraubwerkzeuge, welche als anzeigende Drehmoment Schraubwerkzeuge (Typ I) und auslösende Drehmoment Schraubwerkzeuge (Typ II) eingestuft sind.
ANMERKUNG Die von diesem Dokument abgedeckten Drehmoment Schraubwerkzeuge werden in ISO 1703:2005 mit den Referenznummern 6 1 00 11 0, 6 1 00 11 1 und 6 1 00 12 0, 6 1 00 12 1 sowie 6 1 00 14 0, 6 1 00 15 0 identifiziert. ISO 1703 wird momentan überarbeitet. In der nächsten Ausgabe werden Drehmoment-Schraubwerkzeuge in einen eigenen Abschnitt übernommen werden. Mit dieser Überarbeitung ändern sich auch die Bezugsnummern und weitere, zusätzliche Bezugsnummern werden hinzugefügt.
Outils de manoeuvre pour vis et écrous - Outils dynamométriques à commande manuelle - Partie 2: Exigences d'étalonnage et détermination de l'incertitude de mesure (ISO 6789-2:2017)
ISO 6789-2:2017 spécifie la méthode d'étalonnage des outils dynamométriques à commande manuelle et décrit la méthode de calcul des incertitudes de mesure associées à l'étalonnage.
ISO 6789-2:2017 spécifie les exigences minimales relatives à l'étalonnage du dispositif de mesure de couple lorsque l'intervalle d'incertitude de mesure relative, W´md, n'est pas déjà fourni par un certificat d'étalonnage traçable.
L'ISO 6789 s'applique à l'étalonnage pas à pas (statique) et continu (quasi-statique) des dispositifs de mesure de couple, dont le couple est établi en mesurant la variation élastique d'un corps déformable ou une variable mesurée proportionnelle au couple.
ISO 6789-2:2017 s'applique aux outils dynamométriques à commande manuelle classés en tant qu'outils dynamométriques à lecture directe (Type I) et outils dynamométriques à déclenchement (Type II).
NOTE Les outils dynamométriques à commande manuelle couverts par le présent document sont ceux identifiés dans l'ISO 1703:2005 sous les numéros de référence 6 1 00 11 0, 6 1 00 11 1 et 6 1 00 12 0, 6 1 00 12 1 et 6 1 00 14 0, 6 1 00 15 0. L'ISO 1703 est en cours de révision. Dans la prochaine édition, les outils dynamométriques seront traités dans un article distinct, et du fait de cette modification, les numéros de référence changeront également et des numéros de référence supplémentaires seront ajoutés.
Orodja za vijake in matice - Ročna vrtilna orodja - 2. del: Zahteve za umerjanje in določanje merilne negotovosti (ISO 6789-2:2017)
Ta dokument določa metodo za umerjanje ročnih vrtilnih orodij in opisuje metodo za izračun merilnih negotovosti pri umerjanju.
Ta dokument določa minimalne zahteve za umerjanje naprave za merjenje navora, kjer relativni interval merilne negotovosti W´md še ni podan s sledljivim certifikatom o umerjanju.
Standard ISO 6789 se uporablja za postopno (statično) in stalno (kvazistatično) umerjanje naprav za merjenje navora, pri katerih je navor opredeljen z merjenjem spremembe elastične oblike upogljivega telesa ali z izmerjeno spremenljivko, ki je sorazmerna z navorom.
Ta dokument se uporablja za ročna vrtilna orodja, ki so razvrščena med vrtilna orodja (vrsta I) in nastavitvena vrtilna orodja (vrsta II).
OPOMBA: Ročna vrtilna orodja, ki so zajeta v tem dokumentu, so orodja, identificirana v standardu ISO 1703:2005 z referenčnimi številkami 6 1 00 11 0, 6 1 00 11 1 in 6 1 00 12 0, 6 1 00 12 1 ter 6 1 00 14 0, 6 1 00 15 0. Standard ISO 1703 je trenutno v postopku revizije. V naslednji izdaji bodo vrtilna orodja premaknjena v lastno točko, s to spremembo pa se bodo spremenile tudi referenčne številke in dodane bodo nove referenčne številke.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2017
1DGRPHãþD
SIST EN ISO 6789:2004
2URGMD]DYLMDNHLQPDWLFH5RþQDYUWLOQDRURGMDGHO =DKWHYH]DXPHUMDQMHLQ
GRORþDQMHPHULOQHQHJRWRYRVWL ,62
Assembly tools for screws and nuts - Hand torque tools - Part 2: Requirements for
calibration and determination of measurement uncertainly (ISO 6789-2:2017)
Schraubwerkzeuge - Handbetätigte Drehmoment-Werkzeuge - Teil 2: Anforderungen an
die Kalibrierung und die Bestimmung der Messunsicherheit (ISO 6789-2:2017)
Outils de manoeuvre pour vis et écrous - Outils dynamométriques à commande
manuelle (ISO 6789-2:2017)
Ta slovenski standard je istoveten z: EN ISO 6789-2:2017
ICS:
25.140.30 2URGMD]DURþQRXSRUDER Hand-operated tools
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 6789-2
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2017
EUROPÄISCHE NORM
ICS 25.140.30 Supersedes EN ISO 6789:2003
English Version
Assembly tools for screws and nuts - Hand torque tools -
Part 2: Requirements for calibration and determination of
measurement uncertainly (ISO 6789-2:2017)
Outils de manoeuvre pour vis et écrous - Outils Schraubwerkzeuge - Handbetätigte
dynamométriques à commande manuelle - Partie 2: Drehmomentwerkzeuge - Teil 2: Anforderungen an die
Exigences d'étalonnage et détermination de Kalibrierung und die Bestimmung der
l'incertitude de mesure (ISO 6789-2:2017) Messunsicherheit (ISO 6789-2:2017)
This European Standard was approved by CEN on 14 January 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 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
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, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
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Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6789-2:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 6789-2:2017) 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, and 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 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 Yugoslav 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 6789-2:2017 has been approved by CEN as EN ISO 6789-2:2017 without any
modification.
INTERNATIONAL ISO
STANDARD 6789-2
First edition
2017-02
Assembly tools for screws and nuts —
Hand torque tools —
Part 2:
Requirements for calibration and
determination of measurement
uncertainty
Outils de manoeuvre pour vis et écrous — Outils dynamométriques à
commande manuelle —
Partie 2: Exigences d’étalonnage et détermination de l’incertitude
de mesure
Reference number
ISO 6789-2:2017(E)
©
ISO 2017
ISO 6789-2:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2017 – All rights reserved
ISO 6789-2:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 1
3.1 Terms and definitions . 2
3.2 Symbols, designations and units . 2
4 Requirements for calibration . 4
4.1 Calibration during use . 4
4.2 Calibration method. 4
4.3 Calibration system . 4
5 Measurement error . 5
5.1 Calculation of the relative measurement error . 5
5.2 Exemplary calculations of the relative measurement error . 5
5.2.1 Example 1 . 5
5.2.2 Example 2 . 6
6 Sources of uncertainty . 7
6.1 General . 7
6.2 Evaluation of Type B uncertainties due to the torque tool . 8
6.2.1 Scale, dial or display resolution, r .8
6.2.2 Variation due to the reproducibility of the torque tool, b .
rep 10
6.2.3 Variation due to the interface between the torque tool and the
calibration system.11
6.2.4 Variation due to the variation of the force loading point, b .
l 12
6.3 Evaluation of Type A uncertainty due to the torque tool .13
6.3.1 General.13
6.3.2 Variation due to the repeatability of the torque tool, b .
re 13
7 Determination of the calibration result .13
7.1 Determination of the relative standard measurement uncertainty, w. 13
7.2 Determination of the relative expanded measurement uncertainty, W . 14
7.3 Determination of the relative measurement uncertainty interval, W’ . 14
8 Calibration certificate .15
Annex A (informative) Calculation example for an indicating torque tool (Type I) .16
Annex B (informative) Calculation example for a setting torque tool (Type II) .25
Annex C (normative) Minimum requirements for the calibration of the torque
measurement device and the estimation of its measurement uncertainty .34
Bibliography .41
ISO 6789-2:2017(E)
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
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electrotechnical standardization.
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described 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
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Attention is drawn to the possibility that some of the elements of this document may be the subject of
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URL: w w w . i s o .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 6789-2, together with ISO 6789-1, cancels and replaces ISO 6789:2003 which
has been technically revised
...
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