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

Status
Published
Public Enquiry End Date
24-May-2008
Publication Date
15-Sep-2011
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
09-Sep-2011
Due Date
14-Nov-2011
Completion Date
16-Sep-2011

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 3611:2011
01-oktober-2011
6SHFLILNDFLMDJHRPHWULMVNLKYHOLþLQL]GHOND,QVWUXPHQWL]DPHUMHQMHGLPHQ]LM
0LNURPHWUL]D]XQDQMHPHULWYHNRQVWUXNFLMVNHLQPHURVORYQH]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.
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SIST EN ISO 3611:2011
EN ISO 3611:2010 (E)
Contents Page

Foreword ..............................................................................................................................................................3

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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.

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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
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SIST EN ISO 3611:2011
ISO 3611:2010(E)
PDF disclaimer

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ii © ISO 2010 – All rights reserved
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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

5.3.3 Repeatability, R (limited by MPE ).......................................................................................................8

5.3.4 Partial surface contact error, E (limited by MPE ).............................................................................8

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
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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
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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
Spindle length in end position, L
Maximum dimension measurable, L
Measuring span, L 25 mm
Frame depth, L
Spindle and anvil diameter, D 6,35 mm, 6,5 mm, 7,5 mm, 8 mm
NOTE The dimensions D , L and L are important for the interchangeability of
1 1 2
accessories mounted on the measuring faces.
At the manufacturer's discretion. Other diameters are possible.

Usually, the frame is shaped to permit the measurement of a cylinder whose diameter is

equal to the last value of the measuring range.
Usually, the measuring span L is 25 mm. Other measuring spans are possible.
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
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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
...

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