BRITISH STANDARD BS EN ISO 1:2002

Geometrical Product Specifications (GPS) Standard reference temperature for geometrical product specification and verification

The European Standard EN ISO 1:2002 has the status of a British Standard

ICS 17.040.01

BS EN ISO 1:2002

This British Standard, having been prepared under the direction of the Consumer Products and Services Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 20 September 2002

BSI 20 September 2002

ISBN 0 580 40447 1

National forewordThis British Standard is the official English language version of EN ISO 1:2002. It is identical with ISO 1:2002.

The UK participation in its preparation was entrusted to Technical Committee TDW/4, Engineering drawing, metrology precision, which has the responsibility to:

A list of organizations represented on this committee can be obtained on request to its secretary.

Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled International Standards Correspondence Index, or by using the Search facility of the BSI Electronic Catalogue or of British Standards Online.

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Compliance with a British Standard does not of itself confer immunity from legal obligations.

aid enquirers to understand the text;

present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;

monitor related international and European developments and promulgate them in the UK.

Summary of pagesThis document comprises a front cover, an inside front cover, the EN ISO titlepage, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 3and a back cover.

The BSI copyright date displayed in this document indicates when the document was last issued.

Amendments issued since publication

Amd. No. Date Comments

EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORM

EN ISO 1

July 2002

ICS 17.040.01

English version

Geometrical Product Specifications (GPS) - Standard referencetemperature for geometrical product specification and

verification (ISO 1:2002)Spcification gomtrique des produits (GPS) -

Temprature normale de rfrence pour la spcificationgomtrique des produits et vrification (ISO 1:2002)

Geometrische Produktspezifikation (GPS) -Referenztemperatur fr die geometrische

Produktspezifikation und -prfung (ISO 1:2002)

This European Standard was approved by CEN on 24 June 2002.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATIONC O M I T E U R O P E N D E N O R M A LI S A T I O NEUR OP IS C HES KOM ITEE FR NOR M UNG

Management Centre: rue de Stassart, 36 B-1050 Brussels

2002 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.

Ref. No. EN ISO 1:2002 E

CORRECTED 2002-07-31

Foreword

This document (ISO 1:2002) has been prepared by Technical Committee ISO/TC 213"Dimensional and geometrical product specifications and verification" in collaboration withTechnical Committee CEN/TC 290 "Dimensional and geometrical product specification andverification", the secretariat of which is held by AFNOR.

This European Standard shall be given the status of a national standard, either by publication ofan identical text or by endorsement, at the latest by January 2003, and conflicting nationalstandards shall be withdrawn at the latest by January 2003.

According to the CEN/CENELEC Internal Regulations, the national standards organizations ofthe following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.

Endorsement notice

The text of the International Standard ISO 1:2002 has been approved by CEN as a EuropeanStandard without any modifications.

EN ISO 1:2002

Reference numberISO 1:2002(E)

INTERNATIONAL STANDARD

ISO1

Second edition2002-07-15

Geometrical Product Specifications (GPS) Standard reference temperature for geometrical product specification and verification

Spcification gomtrique des produits (GPS) Temprature normale de rfrence pour la spcification gomtrique des produits et vrification

EN ISO 1:2002

IS:1 O2002(E)

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EN ISO 1:2002

ii

IS:1 O2002(E)

I SO 2002 All irthgs ersedevr iii

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 3.

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 International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 1 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 1:1975), which has been technically revised. Specifically, the following points have changed:

the standard reference temperature has been modified; consequently, the title has been changed, and the footnote, referring to a definition of the metre which no longer exists, has been deleted. Annex A is for information only.

EN ISO 1:2002

iii

IS:1 O2002(E)

vi I SO 2002 All irthgs ersedevr

Introduction

This International Standard is a geometrical product specification (GPS) standard and is to be regarded as a global GPS standard (see ISO/TR 14638). It influences all links in all chains of standards.

For more detailed information on the relationship of this International Standard to other standards and the GPS matrix model, see annex A.

The standard reference temperature is now applied to the GPS specification, i.e. all GPS characteristics are defined and specified at the standard reference temperature. Consequently, when measurements of geometrical features of workpieces and/or metrological characteristics of measuring equipment are carried out, deviations from the standard reference temperature will introduce errors and measurement uncertainties in the measurement result.

The definitions of the units of length and temperature were determined and adopted by the International Committee of Weights and Measures (CIPM) under the authority of the Convention of the Meter. These definitions are published in the Procs-verbaux of the CIPM [4], [5], [6].

This International Standard does not require that all calibrations of metrological characteristics of measuring equipment, workpiece measurements and manufacturing be carried out at the standard reference temperature. Uncertainty in temperature measurement and measurement at temperatures other than the standard reference temperature contribute to the uncertainty assessment of the measurement result and lead to systematic errors in the measurement result. An ISO Technical Report [2] which discusses these issues is being prepared.

EN ISO 1:2002

iv

INTENRATIONAL TSANDADR IS:1 O2002(E)

I SO 2002 All irthgs ersedevr 1

Geometrical Product Specifications (GPS) Standard reference temperature for geometrical product specification and verification

1 Scope

This International Standard specifies the standard reference temperature for geometrical product specification and verification.

2 Standard reference temperature

The standard reference temperature for geometrical product specification and verification is fixed at 20 C.

EN ISO 1:2002

1

IS:1 O2002(E)

2 I SO 2002 All irthgs ersedevr

Annex A (informative)

Relation to the GPS matrix model

A.1 General

For full details about the GPS matrix model, see ISO/TR 14638.

A.2 Information about this International Standard and its use

This International Standard is used whenever GPS specifications for workpieces and measuring equipment are given. It constitutes the basis for the evaluation of measurement uncertainty.

A.3 Position in GPS matrix model

This International Standard is a global GPS standard, which influences all links in all chains of standards in the general GPS matrix, as shown in Figure A.1.

Global GPS standards General GPS standards Chain link number 1 2 3 4 5 6 Size Distance Radius Angle Form of line independent of datum Form of line dependent of datum Form of surface independent of datum Form of surface dependent of datum Orientation Location Circular run-out Total run-out Datums Roughness profile Waviness profile Primary profile Surface imperfections

Fundamental GPS

standards

Edges

Figure A.1

A.4 Related International Standards

The related standards are those of the chains of standards indicated in Figure A.1.

EN ISO 1:2002

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IS:1 O2002(E)

I SO 2002 All irthgs ersedevr 3

Bibliography

[1] ISO/TR 14638:1995, Geometrical Product Specifications (GPS) Masterplan

[2] ISO/TR 16015:1) , Geometrical Product Specifications (GPS) Systematic errors and contributions to measurement uncertainty of length measurement due to thermal influences

[3] VIM:1993, International vocabulary of basic and general terms in metrology. BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML, 2nd edition, 1993

[4] Procs-verbaux du Comit international des poids et mesures, 1931 session

[5] Procs-verbaux du Comit international des poids et mesures, 72nd session, 1983

[6] Procs-verbaux du Comit international des poids et mesures, 78th session, 1989

1) To be published.

EN ISO 1:2002

3

BS EN ISO 1:2002

BSI

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