SIST EN ISO 3611:2011
(Main)Geometrical product specifications (GPS) - Dimensional measuring equipment: Micrometers for external measurements - Design and metrological characteristics (ISO 3611:2010)
Geometrical product specifications (GPS) - Dimensional measuring equipment: Micrometers for external measurements - Design and metrological characteristics (ISO 3611:2010)
This International Standard provides the most important design and metrological characteristics of micrometers for external measurements with maximum measuring range of 500 mm. - with analogue indication, - with digital indication: mechanical or electronic digital - display.
Geometrische Produktspezifikation (GPS) - Längenmessgeräte: Bügelmessschrauben - Konstruktionsmerkmale und messtechnische Merkmale (ISO 3611:2010)
Diese Internationale Norm legt die wichtigsten Konstruktionsmerkmale und messtechnische Merkmale für Bügelmessschrauben für Maße:
- mit Skalenanzeige,
- mit Ziffernanzeige: mechanische oder elektronische Ziffernanzeige
fest.
Spécification géométrique des produits (GPS) - Équipement de mesurage dimensionnel: Micromètres d'extérieur - Caractéristiques de conception et caractéristiques métrologiques (ISO 3611:2010)
L'ISO 3611:2010 spécifie les caractéristiques de conception et les caractéristiques métrologiques les plus importantes des micromètres pour mesurages extérieurs
avec indication analogique;
avec indication numérique: affichage numérique mécanique ou électronique.
Specifikacija geometrijskih veličin izdelka - Instrumenti za merjenje dimenzij - Mikrometri za zunanje meritve: konstrukcijske in meroslovne značilnostii (ISO 3611:2010)
Ta mednarodni standard določa najpomembnejše značilnosti za načrtovanje in meroslovje mikrometrov za zunanje meritve z največjim razponom merjenja 500 mm, – z analogno indikacijo - z digitalno indikacijo: mehanske ali elektronske digitalne – zaslon.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 3611:2011
01-oktober-2011
6SHFLILNDFLMDJHRPHWULMVNLKYHOLþLQL]GHOND,QVWUXPHQWL]DPHUMHQMHGLPHQ]LM
0LNURPHWUL]D]XQDQMHPHULWYH NRQVWUXNFLMVNHLQPHURVORYQH]QDþLOQRVWLL ,62
Geometrical product specifications (GPS) - Dimensional measuring equipment:
Micrometers for external measurements - Design and metrological characteristics (ISO
3611:2010)
Geometrische Produktspezifikation (GPS) - Längenmessgeräte: Bügelmessschrauben -
Konstruktionsmerkmale und messtechnische Merkmale (ISO 3611:2010)
Spécification géométrique des produits (GPS) - Équipement de mesurage dimensionnel:
Micromètres d'extérieur - Caractéristiques de conception et caractéristiques
métrologiques (ISO 3611:2010)
Ta slovenski standard je istoveten z: EN ISO 3611:2010
ICS:
17.040.30 Merila Measuring instruments
SIST EN ISO 3611:2011 de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 3611:2011
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SIST EN ISO 3611:2011
EUROPEAN STANDARD
EN ISO 3611
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2010
ICS 17.040.30
English Version
Geometrical product specifications (GPS) - Dimensional
measuring equipment: Micrometers for external measurements -
Design and metrological characteristics (ISO 3611:2010)
Spécification géométrique des produits (GPS) - Geometrische Produktspezifikation (GPS) -
Équipement de mesurage dimensionnel: Micromètres Längenmessgeräte: Bügelmessschrauben -
d'extérieur - Caractéristiques de conception et Konstruktionsmerkmale und messtechnische Merkmale
caractéristiques métrologiques (ISO 3611:2010) (ISO 3611:2010)
This European Standard was approved by CEN on 11 September 2010.
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,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3611:2010: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 3611:2011
EN ISO 3611:2010 (E)
Contents Page
Foreword .3
2
---------------------- Page: 4 ----------------------
SIST EN ISO 3611:2011
EN ISO 3611:2010 (E)
Foreword
This document (EN ISO 3611:2010) has been prepared by Technical Committee ISO/TC 213 “Dimensional
and geometrical product specifications and verification” in collaboration with Technical Committee
CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of which is
held by AFNOR.
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 May 2011, and conflicting national standards shall be withdrawn at the
latest by May 2011.
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.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 3611:2010 has been approved by CEN as a EN ISO 3611:2010 without any modification.
3
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SIST EN ISO 3611:2011
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SIST EN ISO 3611:2011
INTERNATIONAL ISO
STANDARD 3611
Second edition
2010-11-01
Geometrical product specifications
(GPS) — Dimensional measuring
equipment: Micrometers for external
measurements — Design and
metrological characteristics
Spécification géométrique des produits (GPS) — Équipement de
mesurage dimensionnel: Micromètres d'extérieur — Caractéristiques de
conception et caractéristiques métrologiques
Reference number
ISO 3611:2010(E)
©
ISO 2010
---------------------- Page: 7 ----------------------
SIST EN ISO 3611:2011
ISO 3611:2010(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
COPYRIGHT PROTECTED DOCUMENT
© ISO 2010
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2010 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 3611:2011
ISO 3611:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Design characteristics .2
4.1 General design and nomenclature .2
4.2 Main dimensions .3
4.3 Types of indicating devices .3
4.3.1 General .3
4.3.2 Analogue indicating devices.4
4.3.3 Digital indicating devices, with mechanical digital display .5
4.3.4 Digital indicating devices with electronic digital display.6
4.4 Protection for field use .6
4.5 Frame.7
4.6 Measuring faces .7
4.7 Measuring force limiting device.7
4.8 Adjustment devices.7
4.9 Design characteristics (manufacturer's specification).7
5 Metrological characteristics.8
5.1 General .8
5.2 Effect of spindle clamp .8
5.3 Maximum permissible error of indication (limited by MPE).8
5.3.1 General .8
5.3.2 Full surface contact error, J (limited by MPE ) .8
J
5.3.3 Repeatability, R (limited by MPE ).8
R
5.3.4 Partial surface contact error, E (limited by MPE ).8
E
5.4 Measuring forces (limited by MPL) .8
5.5 Instrument specification sheet .8
6 Proof of conformance with specifications.9
7 Marking.9
Annex A (informative) Example of an error-of-indication curve .10
Annex B (informative) Example of data sheet for micrometers for external measurements.11
Annex C (informative) Calibration of metrological characteristics.12
Annex D (informative) Error tests.13
Annex E (informative) Notes on use .15
Annex F (informative) Relation to the GPS matrix model.16
Bibliography.18
© ISO 2010 – All rights reserved iii
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SIST EN ISO 3611:2011
ISO 3611:2010(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 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 3611 was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product
specifications and verification.
This second edition cancels and replaces the first edition (ISO 3611:1978), which has been technically revised.
iv © ISO 2010 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 3611:2011
ISO 3611:2010(E)
Introduction
This International Standard is a geometrical product specification (GPS) standard and is to be regarded as a
general GPS standard (see ISO/TR 14638). It influences the chain link 5 of the chain of standards on size in
the general GPS matrix.
For more detailed information on the relation between this International Standard, other standards and the
GPS matrix model, see Annex F.
© ISO 2010 – All rights reserved v
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SIST EN ISO 3611:2011
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SIST EN ISO 3611:2011
INTERNATIONAL STANDARD ISO 3611:2010(E)
Geometrical product specifications (GPS) — Dimensional
measuring equipment: Micrometers for external
measurements — Design and metrological characteristics
1 Scope
This International Standard specifies the most important design and metrological characteristics of
micrometers for external measurements:
⎯ with analogue indication;
⎯ with digital indication: mechanical or electronic digital display.
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 14253-1, Geometrical Product Specifications (GPS) — Inspection by measurement of workpieces and
measuring equipment — Part 1: Decision rules for proving conformance or non-conformance with
specifications
ISO 14253-2, Geometrical product specifications (GPS) — Inspection by measurement of workpieces and
measuring equipment — Part 2: Guidance for the estimation of uncertainty in GPS measurement, in
calibration of measuring equipment and in product verification
ISO 14978:2006, Geometrical product specifications (GPS) — General concepts and requirements for GPS
measuring equipment
IEC 60529, Degrees of protection provided by enclosures (IP Code)
ISO/IEC Guide 98-3, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in
measurement (GUM:1995)
ISO/IEC Guide 99, International vocabulary of metrology — Basic and general concepts and associated terms
(VIM)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14978, ISO/IEC Guide 99 and the
following apply.
© ISO 2010 – All rights reserved 1
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SIST EN ISO 3611:2011
ISO 3611:2010(E)
3.1
micrometer for external measurements
measuring instrument which gives the evaluation of a dimensional quantity of an external feature of a
workpiece on the basis of movement of a spindle with a measuring face, moving relatively to a material
measure and an anvil, with the movement generated by a screw thread
NOTE 1 The guiding elements of the spindle and of the anvil are connected by a frame.
NOTE 2 Usually, micrometers for external measurements have a thread as a material measure with the anvil, spindle
and material measure arranged in a line.
3.2
measuring face contact
contact between the measuring face and a feature of a workpiece
3.2.1
full measuring face contact
contact between the full area of the measuring face and a feature of a workpiece
3.2.2
partial measuring face contact
contact between a partial area of the measuring face and a feature of a workpiece
4 Design characteristics
4.1 General design and nomenclature
The general design and workmanship of the micrometer for external measurements shall be such that its
metrological characteristics comply with the requirements of this International Standard under all operational
orientations, unless otherwise specified by the manufacturer. See Figure 1 for the general design.
Key
1 measuring faces 7 sleeve
2 anvil 8 fiducial line
3 measuring spindle 9 analogue indication
4 frame 10 thimble
5 thermally insulating plate 11 fast drive
6 spindle clamp
Figure 1 — Nomenclature and general design of a micrometer for external measurements
2 © ISO 2010 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 3611:2011
ISO 3611:2010(E)
4.2 Main dimensions
The micrometer for external measurements shall conform to the dimensions specified in Figure 2 and Table 1.
Figure 2 — Dimensions of a micrometer for external measurements
Table 1 — Dimensions of a micrometer for external measurements
Dimension Nominal value
Anvil length, L
1
Spindle length in end position, L
2
Maximum dimension measurable, L
3
c
Measuring span, L 25 mm
4
b
Frame depth, L
5
a
Spindle and anvil diameter, D 6,35 mm, 6,5 mm, 7,5 mm, 8 mm
1
NOTE The dimensions D , L and L are important for the interchangeability of
1 1 2
accessories mounted on the measuring faces.
a
At the manufacturer's discretion. Other diameters are possible.
b
Usually, the frame is shaped to permit the measurement of a cylinder whose diameter is
equal to the last value of the measuring range.
c
Usually, the measuring span L is 25 mm. Other measuring spans are possible.
4
4.3 Types of indicating devices
4.3.1 General
Several types of indicating devices are possible:
⎯ analogue indicating devices;
⎯ digital indicating devices with mechanical digital display;
⎯ digital indicating devices with electronic digital display.
On micrometers with analogue indicating devices, the scale interval and its unit shall be labelled.
On micrometers with a digital indicating device, the unit of the indication shall be labelled.
NOTE Combinations of analogue and digital indicating devices are possible.
© ISO 2010 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 3611:2011
ISO 3611:2010(E)
4.3.2 Analogue indicating devices
4.3.2.1 General
The measuring spindle should have a pitch of 0,5 mm or 1 mm. In the case of micrometers with spindles
having a pitch of 0,5 mm, the 0,5 mm graduation lines on the main scale shall be clearly distinguishable from
the 1 mm graduation lines by means of their arrangement above and below the fiducial line.
The secondary scale on the thimble should have a scale graduated with 50 (pitch 0,5 mm) or 100 (pitch 1 mm)
gra
...
SLOVENSKI STANDARD
oSIST prEN ISO 3611:2008
01-maj-2008
6SHFLILNDFLMDJHRPHWULMVNLKYHOLþLQL]GHOND,QVWUXPHQWL]DPHUMHQMHGLPHQ]LM
0LNURPHWUL]D]XQDQMHPHULWYH GL]DMQLQPHURVORYQH]QDþLOQRVWLL ,62',6
Geometrical product specifications (GPS) - Dimensional measuring instruments -
Micrometers for external measurements; Design and metrological characteristics
(ISO/DIS 3611:2008)
Geometrische Produktspezifikation (GPS) - Längenmessgeräte - Bügelmessschrauben;
Konstruktionsmerkmale und messtechnische Merkmale (ISO/DIS 3611:2008)
Spécification géométrique des produits (GPS) - Instruments de mesurage dimensionnel -
Micromètres pour mesurages extérieurs: Conception et caractéristiques métrologiques
(ISO/DIS 3611:2008)
Ta slovenski standard je istoveten z: prEN ISO 3611
ICS:
17.040.30
oSIST prEN ISO 3611:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
DRAFT
prEN ISO 3611
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2008
ICS 17.040.30
English Version
Geometrical product specifications (GPS) - Dimensional
measuring instruments - Micrometers for external
measurements; Design and metrological characteristics
(ISO/DIS 3611:2008)
Spécification géométrique des produits (GPS) - Geometrische Produktspezifikation (GPS) -
Instruments de mesurage dimensionnel - Micromètres pour Längenmessgeräte -Bügelmessschrauben;
mesurages extérieurs: Conception et caractéristiques Konstruktionsmerkmale und messtechnische Merkmale
métrologiques (ISO/DIS 3611:2008) (ISO/DIS 3611:2008)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 290.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 3611:2008: E
worldwide for CEN national Members.
---------------------- Page: 2 ----------------------
prEN ISO 3611:2008 (E)
Contents Page
Foreword.3
2
---------------------- Page: 3 ----------------------
prEN ISO 3611:2008 (E)
Foreword
This document (prEN ISO 3611:2008) has been prepared by Technical Committee ISO/TC 213 "Dimensional
and geometrical product specifications and verification" in collaboration Technical Committee CEN/TC 290
“Dimensional and geometrical product specification and verification” the secretariat of which is held by
AFNOR.
This document is currently submitted to the parallel Enquiry.
Endorsement notice
The text of ISO/DIS 3611:2008 has been approved by CEN as a prEN ISO 3611:2008 without any
modification.
3
---------------------- Page: 4 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 3611
ISO/TC 213 Secretariat: DS
Voting begins on: Voting terminates on:
2008-03-13 2008-08-13
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Geometrical product specifications (GPS) — Dimensional
measuring instruments — Micrometers for external
measurements; Design and metrological characteristics
Spécification géométrique des produits (GPS) — Instruments de mesurage dimensionnel — Micromètres pour
mesurages extérieurs: Conception et caractéristiques métrologiques
[Revision of first edition (ISO 3611:1978)]
ICS 17.040.30
ISO/CEN PARALLEL ENQUIRY
The CEN Secretary-General has advised the ISO Secretary-General that this ISO/DIS covers a subject
of interest to European standardization. In accordance with the ISO-lead mode of collaboration as
defined in the Vienna Agreement, consultation on this ISO/DIS has the same effect for CEN
members as would a CEN enquiry on a draft European Standard. Should this draft be accepted, a
final draft, established on the basis of comments received, will be submitted to a parallel two-month FDIS
vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the committee secretariat.
ISO Central Secretariat work of editing and text composition will be undertaken at publication
stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©
International Organization for Standardization, 2008
---------------------- Page: 5 ----------------------
ISO/DIS 3611
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall
not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the
unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user's country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, photocopying,
recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO's
member body in the country of the requester.
ISO copyright office
Case postale 56 CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
©
ii ISO 2008 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/DIS 3611
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Design characteristics .2
4.1 General design and nomenclature .2
4.2 Dimensions .3
4.3 Types of indication devices .4
4.3.1 General .4
4.3.2 Analogue indicating devices.4
4.3.3 Digital indicating device with mechanical digital display .6
4.3.4 Digital indicating devices with electronic digital display.6
4.4 Protection for field use .7
4.5 Frame.7
4.6 Measuring faces .7
4.7 Measuring force limiting device.7
4.8 Adjustment devices.8
4.9 Design characteristics (manufacturers specification) .8
5 Metrological characteristics.8
5.1 General .8
5.2 Effect of spindle clamp .8
5.3 Maximum permissible error of indication (limited by MPE).9
5.3.1 General .9
5.3.2 Full contact error J (limited by MPE ) .9
J
5.3.3 Repeatability R (limited by MPE ).9
R
5.3.4 Partial surface contact error-E (limited by MPE ) .9
E
5.4 Measuring forces (limited by MPL).9
5.5 Instrument specification sheet .9
6 Proving of conformance with specification.10
7 Marking.10
Annex A (informative) Example of a diagram of errors of indication .11
Annex B (informative) Example of data sheet for micrometers for external measurements.12
Annex C (informative) Calibration of metrological characteristics.13
Annex D (informative) Error tests.14
Annex E (informative) Notes on use .16
Annex F (informative) Relation to the GPS matrix model.17
Bibliography.18
© ISO 2007 – All rights reserved iii
DRAFT 2008
---------------------- Page: 7 ----------------------
ISO/DIS 3611
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 3611 was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product
specifications and verification.
This second edition cancels and replaces the first edition (ISO 3611:1978), which has been technically revised.
iv © ISO 2007 – All rights reserved
DRAFT 2008
---------------------- Page: 8 ----------------------
ISO/DIS 3611
Introduction
This International Standard is a Geometrical Product Specification (GPS) standard and is to be regarded as a
general GPS standard (see ISO/TR 14638). It influences the chain link 5 of the chain of standards on Size in
the general GPS matrix.
For more detailed information of the relation of the standard to other standards and the GPS matrix model see
Annex F.
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DRAFT INTERNATIONAL STANDARD ISO/DIS 3611
Geometrical product specifications (GPS) — Dimensional
measuring instruments — Micrometers for external
measurements; Design and metrological characteristics
1 Scope
This International Standard provides the most important design and metrological characteristics of
micrometers for external measurements with maximum measuring range of 500 mm.
with analogue indication,
with digital indication: mechanical or electronic digital – display,
Normative references.
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 3650, Geometrical Product Specifications (GPS) — Length standards — Gauge blocks
ISO 14253-1, Geometrical Product Specifications (GPS) — Inspection by measurement of workpieces and
measuring equipment — Part 1: Decision rules for proving conformance or non-conformance with
specifications
ISO/TS 14253-2, Geometrical Product Specifications (GPS) — Inspection by measurement of workpieces and
measuring equipment — Part 2: Guide to the estimation of uncertainty in GPS measurement, in calibration of
measuring equipment and in product verification
ISO 14978:2006, Geometrical product specifications (GPS) — General concepts and requirement for GPS
measurement equipment
IEC 60529, Degrees of protection by enclosures (IP code)
Guide to the expression of uncertainty in measurement (GUM). BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML,
1st edition, 1995
International Vocabulary of Basic and General Terms in Metrology (VIM). BIPM, IFCC, IEC, ISO, IUPAP,
OIML, 2nd edition, 1993
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14978, VIM and the following apply.
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ISO/DIS 3611
3.1
micrometers for external measurements
measuring instrument, which gives the evaluation of a dimensional quantity of an external feature on the basis
of movement of a spindle with a measuring face, moving relatively to a material measure and an anvil, with
the movement generated by a screw thread
NOTE 1 The guiding of the spindle and the anvil are connected by a frame.
NOTE 2 Usually micrometers for external measurements have a thread as material measure with anvil, spindle and
material measure arranged in one line.
3.2
measuring face contact
contact between the measuring face and a feature
3.2.1
full measuring face contact
contact between the full area of the measuring face and a feature
3.2.2
partial measuring face contact
contact between a partial area of the measuring face and a feature
3.2.3
measuring face line contact
contact between a line on the measuring face and a feature
NOTE Form deviations in either the measuring face(s) or the feature are disregarded for the purposes of these
definitions.
4 Design characteristics
4.1 General design and nomenclature
The general design and workmanship shall be such that the performance of the micrometer for external
measurements complies with the requirements of this International Standard under all orientation of operation
unless otherwise specified by the manufacturer.
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ISO/DIS 3611
Key
1 Measuring faces 7 Sleeve
2 Anvil 8 Fiducial line
3 Measuring spindle 9 Analogue indication
4 Frame 10 Thimble
5 Insulating plate 11 Fast drive
6 Spindle clamp
Figure 1 — Nomenclature and general design of micrometer for external measurements
4.2 Dimensions
The micrometer for external measurements shall conform to the dimensions specified in Figure 2 and Table 1.
Figure 2 — Dimensions of micrometer for external measurements
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ISO/DIS 361
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