IEC PAS 62500:2006

Process management for avionics - Guide for defining and performing highly accelerated tests in avionic systems

Specifies the targets assigned to highly accelerated tests, their basic principle, their scope of application and their implementation procedures. Is a methodological document aimed at facilitating drafting of the specification and then performance of highly accelerated tests by programme managers.

General Information

• Status: Replaced
• Publication Date: 27-Nov-2006
• ICS: 03.100.50 - Production. Production management
• ICS: 31.020 - Electronic components in general
• Technical Committee: TC 107 - Process management for avionics
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 25-Jul-2008

Relations

• Replaced By: IEC TS 62500:2008 - Process management for avionics - Defining and performing highly accelerated tests in aerospace systems - Application guide
• Effective Date: 05-Sep-2023
• Revised: IEC TR 62500:2024 - Process management for avionics - Highly severe stress tests for operating margins identification and robustness improvement of avionics equipment - Application guidelines
• Effective Date: 17-May-2024

Standards Content (Sample)

PUBLICLY
IEC
AVAILABLE
PAS 62500
SPECIFICATION
First edition
Pre-Standard
2006-11
Process management for avionics –

Guide for defining and performing highly
accelerated tests in avionic systems

Reference number
IEC/PAS 62500:2006(E)
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PUBLICLY
IEC
AVAILABLE
PAS 62500
SPECIFICATION
First edition
Pre-Standard
2006-11
Process management for avionics –

Guide for defining and performing highly
accelerated tests in avionic systems

IEC 2006   Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
V
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – IEC/PAS 62500 © IEC 2006

CONTENTS
FOREWORD.3

1 Scope and object.4

2 Terms and definitions .5

3 Acronyms .7

4 Highly accelerated test goals and principles .7

4.1 General characteristics .7
4.2 General principles of highly accelerated tests.8
4.3 Example of the limitations of highly accelerated tests .10
5 Industrial technical domains covered by highly accelerated tests .11
6 Highly accelerated tests in the life cycle and associated assembly levels.11
7 Planning and management of highly accelerated tests.13
7.1 Validation and verification.13
7.2 Planning of highly accelerated tests .14
7.3 Management of highly accelerated tests.15
8 General methodology for implementing highly accelerated tests .15
8.1 Structure of the approach .15
8.2 Analysis of product sensitive points.16
8.3 Selection of applicable stresses .17
8.4 Producing a test plan.18
8.5 Tests performing .20
8.6 Analysis of test results, corrective action and resumption of testing .21
9 Building on and using experience.21
9.1 Creating the database .22
9.2 Inclusion in the company reference system .22
9.3 Use of results for environmental stress screening.22
9.4 Correlation with feedback .23
9.5 Synthesis and impact on company culture .23
10 Customer/supplier relations .23
10.1 Prime contractor/supplier relations .23
10.2 Supplier/test laboratory relations.24

11 Profitability of highly accelerated tests .25
11.1 General .25
11.2 "Non-reliability" costs.26
11.3 Expenses generated by the highly accelerated tests.28
Annex A (informative) Comparative characteristics of highly accelerated tests and
reliability tests .30
Annex B (informative) Example of potential effectiveness table for stresses or loadings
according to the nature of the product sensitive point .31
Annex C (informative) Highly accelerated tests implementation logic.32
Annex D (informative) Margin-related statistical considerations for telecommunications
circuit-boards or board assembly .34
Bibliography .35

IEC/PAS 62500 © IEC 2006 – 3 –

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
PROCESS MANAGEMENT FOR AVIONICS –

Guide for defining and performing highly accelerated tests

in avionic systems
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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A PAS is a technical specification not fulfilling the requirements for a standard but made
available to the public.
IEC-PAS 62500 has been prepared by IEC technical committee 107: Process management for
avionics.
The text of this PAS is based on the This PAS was approved for publication
following document: by the P-members of the committee
concerned as indicated in the following
document:
Draft PAS Report on voting
107/54/NP 107/61/RVN
Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned will transform it into an International Standard.
This PAS shall remain valid for an initial maximum period of three years starting from 2006-11.
The validity may be extended for a single three-year period, following which it shall be revised
to become another type of normative document or shall be withdrawn.

– 4 – IEC/PAS 62500 © IEC 2006

PROCESS MANAGEMENT FOR AVIONICS –

Guide for defining and performing highly accelerated tests

in avionic systems
1 Scope and object
In an increasingly harsh economic context (tighter performance requirements, shorter

development cycles, reduced cost of ownership, etc.), it is essential to ensure product
maturity rapidly and, in any case, by the time of commissioning.
It is with a view to remedying shortcomings in traditional development methods that "highly
accelerated" tests have been developed. The main underlying principle behind this new type
of test strategy is as follows: rather than reasoning in terms of conformity with a specification
and simply performing conventional tests, we on the contrary attempt to push the product to
its limits by applying environmental stresses and/or stimuli of levels higher than the
specification. The aim is thus to take full advantage of current technologies, by eliminating
defects which generate potential failures, as of the first prototypes.
A well-conducted accelerated test process should, in a relatively short time, lead to a
significant increase in the robustness of a product, as early as the initial prototypes stage at
the beginning of the development phase, thus accelerating early maturity of this product.
Furthermore, identification of the margins available on a "mature" product helps design and
size its future environmental stress screening profile more accurately, by increasing the
severity of the loadings applied to just what is needed, leading to a particularly significant
boost in the efficiency of this environmental stress screening process.
)
The object of this PAS is to specify the targets assigned to the highly accelerated tests,
their basic principle, their scope of application and their implementation procedures.
This guide is thus a methodological document aimed at facilitating drafting of the specification
and then performance of highly accelerated tests by the programme managers.
It is primarily intended for programme managers, designers, test managers, and RAMS
experts.
This guide concerns all programmes, in particular aeronautical, space and armaments
programmes. It primarily concerns the industrial firms in charge of designing, developing and

producing components built for these programmes, but also their customers who, in drafting
contractual clauses, may require that their suppliers implement highly accelerated tests.
The
...