As ISO 14978-2007 Geometrical Product Specifications (GPS) - General Concepts and Requirements for GPS Measur

AS ISO 14978—2007

ISO 14978:2006

This is a free 9 page sample. Access the full version at http://infostore.saiglobal.com.

AS ISO 14978—2007

Australian Standard® Geometrical product specifications (GPS)—General concepts and requirements for GPS measuring equipment

This Australian Standard® was prepared by Committee ME-027, Engineering Tolerance Systems, Metrology, Surface Quality. It was approved on behalf of the Council of Standards Australia on 8 July 2007. This Standard was published on 12 September 2007.


The following are represented on Committee ME-027: • • • • • • • • •

Engineering Employers Association, S.A. Engineers Australia National Association of Testing Authorities Australia National Measurement Institute Queensland University of Technology Society of Manufacturing Engineers The CMM Group The University of Queensland University of Wollongong

This Standard was issued in draft form for comment as DR 06358. Standards Australia wishes to acknowledge the participation of the expert individuals that contributed to the development of this Standard through their representation on the Committee and through the public comment period.

Keeping Standards up-to-date Australian Standards® are living documents that reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments that may have been published since the Standard was published. Detailed information about Australian Standards, drafts, amendments and new projects can be found by visiting www.standards.org.au Standards Australia welcomes suggestions for improvements, and encourages readers to notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at [email protected], or write to Standards Australia, GPO Box 476, Sydney, NSW 2001.

AS ISO 14978—2007


Australian Standard® Geometrical product specifications (GPS)—General concepts and requirements for GPS measuring equipment

First published as AS ISO 14978—2007.

COPYRIGHT © Standards Australia All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Published by Standards Australia, GPO Box 476, Sydney, NSW 2001, Australia ISBN 0 7337 8371 6

ii ii

PREFACE This Standard was prepared by the Standards Australia Committee ME-027, Engineering Tolerance Systems, Metrology, Surface Quality. The objective of this Standard is to provide the general requirements for simple measuring equipment to facilitate communication between manufacturers or suppliers and purchasers or users when specifying such equipment. This Standard is identical with and has been reproduced from ISO 14978:2006, Geometrical product specifications (GPS)—General concepts and requirements for GPS measuring equipment. This is a free 9 page sample. Access the full version at http://infostore.saiglobal.com.

As this Standard is reproduced from an international standard, the following applies: (a)

Its number appears on the cover and title page while the international standard number appears only on the cover.

(b)

In the source text ‘this International Standard’ should read ‘this Australian Standard.’

(c)

A full point substitutes for a comma when referring to a decimal marker.

The terms ‘normative’ and ‘informative’ are used to define the application of the annex to which they apply. A normative annex is an integral part of a standard, whereas an informative annex is only for information and guidance. References to International Standards should be replaced by references to Australian Standards, as follows: Reference to International Standard ISO 1 Geometrical Product Specifications (GPS)—Standard reference temperature for geometrical product specification and verification

Australian Standard AS —

1101

Geometrical Product Specifications (GPS)—Geometrical tolerancing— Tolerances of form orientation, location and run-out

—

5459

Geometrical Product Specifications (GPS)—Geometrical tolerancing— Datums and datum systems

—

ISO/TS

AS

14253

4826

Geometrical Product Specifications (GPS)—Inspection by measurement of workpieces and measuring equipment 14253-1 Part 1: Decision rules for proving conformance or non-conformance with specifications

General Product Specifications (GPS)

4826.1 Inspection by measurement of workpieces and measuring equipment


iii iii ISO/TS 14253-2 Part 2: Guide to the estimation of uncertainty in GPS measurement, in calibration of measuring equipment and product verification

AS —

17450

Geometrical Product Specifications (GPS)—General concepts 17450-2 Part 2: Basic levels, specifications, operators and uncertainties

—

International vocabulary of basic and general terms in metrology (VIM), BIPM, IEC, IFCC, ISO, IUPAC, IUPAP.

—

International vocabulary of basic and general terms in metrology (VIM), BIPM, IEC, IFCC, ISO, IUPAC, IUPAP.

3807

Guide to the expression of uncertainty in measurement (GUM), BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML.

—

—

Vocabulary of basic and general terms in metrology

iv iv

Contents

CONTENTS

Page


Foreword............................................................................................................................................................ iv Page Introduction ........................................................................................................................................................ v 1

Scope ..................................................................................................................................................... 1

2

Normative references ........................................................................................................................... 1

3

Terms and definitions........................................................................................................................... 2

4

Abbreviations ...................................................................................................................................... 12

5 5.1 5.2 5.3

Design characteristics........................................................................................................................ 13 General................................................................................................................................................. 13 Indicating measuring equipment ...................................................................................................... 14 Material measures............................................................................................................................... 14

6 6.1 6.2 6.3 6.4

Metrological characteristics .............................................................................................................. 15 General................................................................................................................................................. 15 Identification, definition and choice of metrological characteristics............................................ 16 Indicating measuring equipment — identification of general metrological characteristics....... 17 Material measures — Identification of general metrological characteristics ............................... 19

7 7.1 7.2 7.3 7.4 7.5 7.6

Types of presentation and types of specifications for characteristics......................................... 21 General................................................................................................................................................. 21 Presentation of characteristic curves — Fixed and floating zero ................................................. 21 Presentation of a characteristic — Statistical ................................................................................. 24 Specifications for single-value metrological characteristics......................................................... 25 Specification for metrological characteristics defined in a range................................................. 25 Specification for metrological characteristics defined in a two- or three-dimensional range .................................................................................................................................................... 29

8 8.1 8.2 8.3

Calibration of metrological characteristics...................................................................................... 29 Manufacturer and supplier of measuring instruments ................................................................... 29 User of measuring instruments......................................................................................................... 29 Measurement uncertainty .................................................................................................................. 29

9

Marking ................................................................................................................................................ 30

Annex A (normative) General minimum requirements and guidance for clauses in GPS standards for specific measuring equipment .................................................................................................... 31 Annex B (informative) Data sheet for measuring equipment requirements............................................... 33 Annex C (normative) Relation to the GPS matrix model.............................................................................. 35 Bibliography ..................................................................................................................................................... 37

© ISO 2006 – All rights reserved

iii

ISO 14978:2006(E)

v v

Introduction

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 chain links 5 and 6 of all chains of standards in the general GPS matrix. For more detailed information of the relation of this International Standard to other standards and the GPS matrix model, see Annex C.


This International Standard contains guidance for writing the standards for specific measuring equipment. This International Standard is intended to give the user a basic understanding of the use of ISO standards for GPS measuring equipment. This International Standard presents and defines general concepts to be used in connection with GPS measuring equipment to avoid multiple repetitions in the ISO standards for specific GPS measuring equipment. This International Standard is also intended as guidance for the manufacturer to evaluate and present specifications for characteristics for GPS measurement equipment. This International Standard should be close at hand when reading and using ISO standards for a specific GPS measuring equipment.

© ISO 2006 – All rights reserved

v


vi vi

NOTES

INTERNATIONAL STANDARD

ISO 14978:2006(E)

1

1

AUSTRALIAN STANDARD

Geometrical product specifications (GPS) — General concepts and requirements for GPS measuring equipment


1

Scope

This International Standard specifies the general requirements, terms and definitions of characteristics of simple GPS measuring equipment, e.g. micrometers, dial gauges, callipers, surface plates, height gauges, gauge blocks, but not necessarily excluding more complicated equipment. It forms the basis for standards defining and describing the design characteristics and metrological characteristics for measuring equipment. It also gives guidance for the development and content of standards for GPS measuring equipment. This International Standard is intended to ease the communication between manufacturer/supplier and customer/user and to make the specification phase of GPS measuring equipment more accurate. This International Standard is also intended as a tool to be used in companies in the process of defining and selecting relevant characteristics for measuring equipment to be used in the quality assurance of measuring processes, i.e. in calibration and in workpiece measurements. This International Standard also includes terms which are frequently used in connection with the characterization of specific measuring equipment.

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 1:2002, Geometrical Product Specifications (GPS) — Standard reference temperature for geometrical product specification and verification ISO 1101:2004, Geometrical Product Specifications (GPS — Geometrical tolerancing — Tolerances of form, orientation, location and run-out ISO 5459:—1), Geometrical Product Specifications (GPS) — Geometrical tolerancing — Datums and datum systems ISO 14253-1:1998, 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 14253-2:1999, 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 product verification ISO/TS 17450-2, Geometrical product specifications (GPS) — General concepts — Part 2: Basic tenets, specifications, operators and uncertainties International vocabulary of basic and general terms in metrology (VIM), BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, 1987

1)

To be published. (Revision of ISO 5459:1981.)

© ISO 2006 – All rights reserved www.standards.org.au

1 © Standards Australia


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