IEC TS 62500:2008
(Main)Process management for avionics - Defining and performing highly accelerated tests in aerospace systems - Application guide
Process management for avionics - Defining and performing highly accelerated tests in aerospace systems - Application guide
IEC/TS 62500:2008(E) specifies the targets assigned to highly accelerated tests, their basic principles, their scope of application and their implementation procedures. Is primarily intended for programme managers, designers, test managers, and RAMS experts to facilitate the draft of the specification and execution of highly accelerated tests. Is applicable to all programmes and is of primary interest to the industrial firms in charge of designing, developing and producing equipment built for these programmes, and also their customers.
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IEC/TS 62500
Edition 1.0 2008-07
TECHNICAL
SPECIFICATION
Process management for avionics – Defining and performing highly accelerated
tests in aerospace systems – Application guide
IEC/TS 62500:2008(E)
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 IEC or
IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.
IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
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It also gives information on projects, withdrawn and replaced publications.
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on-line and also by email.
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in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
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Centre FAQ or contact us:
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Fax: +41 22 919 03 00
IEC/TS 62500
Edition 1.0 2008-07
TECHNICAL
SPECIFICATION
Process management for avionics – Defining and performing highly accelerated
tests in aerospace systems – Application guide
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
W
ICS 03.100.50; 31.020; 49.060 ISBN 2-8318-9933-8
– 2 – TS 62500 © IEC:2008(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Terms and definitions .7
3 Acronyms .9
4 Highly accelerated test goals and principles .10
4.1 General characteristics.10
4.2 General principles of highly accelerated tests.11
4.3 Example of the limitations of highly accelerated tests .13
5 Industrial technical domains covered by highly accelerated tests.14
6 Highly accelerated tests in the lifecycle and associated assembly levels .14
7 Planning and management of highly accelerated tests.16
7.1 General .16
7.2 Validation and verification .16
7.3 Planning of highly accelerated tests .17
7.4 Management of highly accelerated tests.18
8 General methodology for implementing highly accelerated tests .18
8.1 Structure of the approach .18
8.2 Analysis of product sensitive points.19
8.3 Selection of applicable stresses .20
8.4 Producing a test plan.21
8.5 Performing tests .23
8.6 Analysis of test results, corrective action and resumption of testing.24
9 Building on and using experience .24
9.1 General .24
9.2 Creating the database .25
9.3 Inclusion in the company reference system .25
9.4 Use of results for environmental stress screening.25
9.5 Correlation with feedback .26
9.6 Synthesis and impact on company culture .26
10 Customer/supplier relations .26
10.1 Prime contractor/supplier relations .26
10.1.1 Responsibilities .26
10.1.2 Contract procedures .27
10.1.3 Tests synthesis.27
10.2 Supplier/test laboratory relations .27
11 Costs and savings .28
11.1 General .28
11.2 "Non-reliability" costs .28
11.2.1 Cost in delayed time to market .28
11.2.2 Cost of an in-service failure .29
11.2.3 Cost of a recovery operation.30
11.2.4 Impact on brand image .30
11.3 Expenses generated by the highly accelerated tests.30
11.3.1 Engineering upstream of testing .30
TS 62500 © IEC:2008(E) – 3 –
11.3.2 Test resources used .31
11.3.3 Manpower dedicated to highly accelerated tests .31
11.3.4 The cost of damaged or destroyed products .31
Annex A (informative) Comparative characteristics of highly accelerated tests and
reliability tests .32
Annex B (informative) Example of potential effectiveness table for stresses or loadings
according to the nature of the product sensitive point .33
Annex C (normative) Highly accelerated tests implementation logic .34
Annex D (informative) Margin-related statistical considerations – Example:
telecommunications circuit boards or board assembly.36
Bibliography.38
Figure 1 – Exploration of margins using a highly accelerated test .13
Figure 2 – Financial losses generated by a delay in time to market.29
Figure C.1 – General logical flowchart .34
Figure C.2 – Details of test performance.35
Figure D.1 – Examples of the margin options open to the designer .37
Table A.1 – Comparative characteristics of highly accelerated tests and reliability
tests .32
Table B.1 – Example of potential effectiveness table for stresses or loadings according
to the nature of the product sensitive point .33
– 4 – TS 62500 © IEC:2008(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PROCESS MANAGEMENT FOR AVIONICS –
DEFINING AND PERFORMING HIGHLY
ACCELERATED TESTS IN AEROSPACE SYSTEMS –
APPLICATION GUIDE
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62500, which is a technical specification, has been prepared by IEC technical committee
107: Process management for avionics.
TS 62500 © IEC:2008(E) – 5 –
This techn
...
IEC/TS 62500
Edition 1.0 2008-07
TECHNICAL
SPECIFICATION
Process management for avionics – Defining and performing highly accelerated
tests in aerospace systems – Application guide
IEC/TS 62500:2008(E)
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 IEC or
IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.
IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: csc@iec.ch
Tel.: +41 22 919 02 11
Fax: +41 22 919 03 00
IEC/TS 62500
Edition 1.0 2008-07
TECHNICAL
SPECIFICATION
Process management for avionics – Defining and performing highly accelerated
tests in aerospace systems – Application guide
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
W
ICS 03.100.50; 31.020; 49.060 ISBN 2-8318-9933-8
– 2 – TS 62500 © IEC:2008(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Terms and definitions .7
3 Acronyms .9
4 Highly accelerated test goals and principles .10
4.1 General characteristics.10
4.2 General principles of highly accelerated tests.11
4.3 Example of the limitations of highly accelerated tests .13
5 Industrial technical domains covered by highly accelerated tests.14
6 Highly accelerated tests in the lifecycle and associated assembly levels .14
7 Planning and management of highly accelerated tests.16
7.1 General .16
7.2 Validation and verification .16
7.3 Planning of highly accelerated tests .17
7.4 Management of highly accelerated tests.18
8 General methodology for implementing highly accelerated tests .18
8.1 Structure of the approach .18
8.2 Analysis of product sensitive points.19
8.3 Selection of applicable stresses .20
8.4 Producing a test plan.21
8.5 Performing tests .23
8.6 Analysis of test results, corrective action and resumption of testing.24
9 Building on and using experience .24
9.1 General .24
9.2 Creating the database .25
9.3 Inclusion in the company reference system .25
9.4 Use of results for environmental stress screening.25
9.5 Correlation with feedback .26
9.6 Synthesis and impact on company culture .26
10 Customer/supplier relations .26
10.1 Prime contractor/supplier relations .26
10.1.1 Responsibilities .26
10.1.2 Contract procedures .27
10.1.3 Tests synthesis.27
10.2 Supplier/test laboratory relations .27
11 Costs and savings .28
11.1 General .28
11.2 "Non-reliability" costs .28
11.2.1 Cost in delayed time to market .28
11.2.2 Cost of an in-service failure .29
11.2.3 Cost of a recovery operation.30
11.2.4 Impact on brand image .30
11.3 Expenses generated by the highly accelerated tests.30
11.3.1 Engineering upstream of testing .30
TS 62500 © IEC:2008(E) – 3 –
11.3.2 Test resources used .31
11.3.3 Manpower dedicated to highly accelerated tests .31
11.3.4 The cost of damaged or destroyed products .31
Annex A (informative) Comparative characteristics of highly accelerated tests and
reliability tests .32
Annex B (informative) Example of potential effectiveness table for stresses or loadings
according to the nature of the product sensitive point .33
Annex C (normative) Highly accelerated tests implementation logic .34
Annex D (informative) Margin-related statistical considerations – Example:
telecommunications circuit boards or board assembly.36
Bibliography.38
Figure 1 – Exploration of margins using a highly accelerated test .13
Figure 2 – Financial losses generated by a delay in time to market.29
Figure C.1 – General logical flowchart .34
Figure C.2 – Details of test performance.35
Figure D.1 – Examples of the margin options open to the designer .37
Table A.1 – Comparative characteristics of highly accelerated tests and reliability
tests .32
Table B.1 – Example of potential effectiveness table for stresses or loadings according
to the nature of the product sensitive point .33
– 4 – TS 62500 © IEC:2008(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PROCESS MANAGEMENT FOR AVIONICS –
DEFINING AND PERFORMING HIGHLY
ACCELERATED TESTS IN AEROSPACE SYSTEMS –
APPLICATION GUIDE
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62500, which is a technical specification, has been prepared by IEC technical committee
107: Process management for avionics.
TS 62500 © IEC:2008(E) – 5 –
This technical specification cancels and replaces IEC/PAS 62500 published in 2006. This first
edition constitutes a technical revision.
The text of this technical
...
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