EN IEC 62506:2023
(Main)Methods for product accelerated testing
Methods for product accelerated testing
IEC 62506:2023 provides guidance on the application of various accelerated test techniques for measurement or improvement of item reliability. Identification of potential failure modes that can be experienced in the use of an item and their mitigation is instrumental to ensure dependability of an item. The object of the methods is to either identify potential design weakness or provide information on item reliability, or to achieve necessary reliability and availability improvement, all within a compressed or accelerated period of time. This document addresses accelerated testing of non-repairable and repairable systems. It can be used for probability ratio sequential tests, fixed duration tests and reliability improvement/growth tests, where the measure of reliability can differ from the standard probability of failure occurrence. This document also extends to present accelerated testing or production screening methods that would identify weakness introduced into the item by manufacturing error, which can compromise item reliability. Services and people are however not covered by this document.
Verfahren für beschleunigte Produktprüfungen
Méthodes d'essais accélérés de produits
L'IEC 62506:2023 fournit des recommandations pour l’application de diverses techniques d’essais accélérés permettant de mesurer ou d’améliorer la fiabilité de l’entité. L’identification des modes de défaillance potentiels qui peuvent être rencontrés lors de l’utilisation d’une entité donnée et la manière d’y remédier contribuent à assurer la sûreté de fonctionnement d’une entité. L’objectif de ces méthodes est soit d’identifier les faiblesses potentielles de la conception et fournir des informations sur la fiabilité de l’entité, soit d’atteindre l’amélioration nécessaire de la fiabilité et de la disponibilité, dans les deux cas en comprimant ou en accélérant la durée. Le présent document couvre les essais accélérés de systèmes non réparables et de systèmes réparables. Elle peut être utilisée pour des essais de rapport de probabilité progressifs, des essais à durée fixe et des essais d’amélioration/croissance de la fiabilité, lorsque la mesure de la fiabilité peut être différente de la probabilité normale d’occurrence de défaillance. Le présent document décrit également des méthodes d’essais accélérés ou de déverminage de la production qui permettraient d’identifier les faiblesses induites par une éventuelle erreur de fabrication de l’entité et qui peuvent de ce fait d’en compromettre la fiabilité. Les services et les personnes ne sont cependant pas couverts par le présent document.
Metode za pospešeno preskušanje proizvodov (IEC 62506:2023)
Standard IEC 62506:2023 ponuja napotke za uporabo različnih metod za pospešeno preskušanje za ugotavljanje ali izboljšanje zanesljivosti elementov. Določitev potencialnih zvrsti napak, do katerih lahko pride med uporabo elementa, in ublažitev le-teh je bistvenega pomena pri zagotavljanju zanesljivosti elementa. Cilj metode je določitev morebitnih zasnovnih slabosti, zagotavljanje podatkov o zanesljivosti elementa ali izvajanje potrebnih izboljšav zanesljivosti in razpoložljivosti – vse to v strnjenem oz. pospešenem časovnem obdobju. Ta dokument obravnava pospešeno preskušanje nepopravljivih in popravljivih sistemov. Uporablja se lahko za sekvenčne preskuse razmerja verjetnosti, preskuse s fiksnim trajanjem in preskuse izboljšanja/povečanja zanesljivosti, pri čemer se lahko stopnja zanesljivosti razlikuje od standardne verjetnosti pojava napake. Ta dokument prav tako obravnava trenutno pospešeno preskušanje ali metode za pregled proizvodnje, ki določijo slabosti elementa, ki so posledica proizvodne napake in ki bi lahko ogrozile zanesljivost elementa. Dokument ne zajema storitev in ljudi.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2024
Metode za pospešeno preskušanje proizvodov (IEC 62506:2023)
Methods for product accelerated testing (IEC 62506:2023)
Verfahren für beschleunigte Produktprüfungen (IEC 62506:2023)
Méthodes d'essais accélérés de produits (IEC 62506:2023)
Ta slovenski standard je istoveten z: EN IEC 62506:2023
ICS:
03.120.01 Kakovost na splošno Quality in general
19.020 Preskuševalni pogoji in Test conditions and
postopki na splošno procedures in general
21.020 Značilnosti in načrtovanje Characteristics and design of
strojev, aparatov, opreme machines, apparatus,
equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 62506
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2023
ICS 03.120.01; 21.020 Supersedes EN 62506:2013
English Version
Methods for product accelerated testing
(IEC 62506:2023)
Méthodes d'essais accélérés de produits Verfahren für beschleunigte Produktprüfungen
(IEC 62506:2023) (IEC 62506:2023)
This European Standard was approved by CENELEC on 2023-12-12. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62506:2023 E
European foreword
The text of document 56/2000/FDIS, future edition 2 of IEC 62506, prepared by IEC/TC 56
"Dependability" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-09-12
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-12-12
document have to be withdrawn
This document supersedes EN 62506:2013 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62506:2023 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 62740:2015 NOTE Approved as EN 62740:2015 (not modified)
IEC 60812 NOTE Approved as EN IEC 60812
IEC 61163-2 NOTE Approved as EN IEC 61163-2
IEC 60300-3-4 NOTE Approved as EN IEC 60300-3-4
IEC 60068 (series) NOTE Approved as EN 60068 (series)
IEC 61014 NOTE Approved as EN 61014
IEC 61163-1 NOTE Approved as EN 61163-1
IEC 61164:2004 NOTE Approved as EN 61164:2004 (not modified)
IEC 61125:2018 NOTE Approved as EN IEC 61125:2018 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-192 - International electrotechnical vocabulary - - -
Part 192: Dependability
IEC 60300-3-5 - Dependability management - Part 3-5: - -
Application guide - Reliability test
conditions and statistical test principles
IEC 60605-2 - Equipment reliability testing - Part 2: - -
Design of test cycles
IEC 60721 series Classification of environmental conditions EN 60721 series
IEC 61123 2019 Reliability testing - Compliance test plans EN IEC 61123 2020
for success ratio
IEC 61124 2023 Reliability testing - Compliance tests for EN IEC 61124 2023
constant failure rate and constant failure
intensity
IEC 61649 2008 Weibull analysis EN 61649 2008
IEC 61709 - Electric components - Reliability - EN 61709 -
Reference conditions for failure rates and
stress models for conversion
IEC 61710 - Power law model - Goodness-of-fit tests EN 61710 -
and estimation methods
IEC 62429 - Reliability growth - Stress testing for early EN 62429 -
failures in unique complex systems
IEC 62506 ®
Edition 2.0 2023-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Methods for product accelerated testing
Méthodes d'essais accélérés de produits
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 03.120.01, 21.020 ISBN 978-2-8322-7727-0
– 2 – IEC 62506:2023 © IEC 2023
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions, symbols and abbreviated terms . 9
3.1 Terms and definitions . 9
3.2 Symbols and abbreviated terms . 11
4 General description of the accelerated test methods . 12
4.1 Cumulative damage model . 12
4.2 Classification, methods and types of test acceleration . 14
4.2.1 General . 14
4.2.2 Type A: qualitative accelerated tests . 15
4.2.3 Type B: quantitative accelerated tests . 15
4.2.4 Type C: quantitative time and event compressed tests . 16
5 Accelerated test models . 17
5.1 Type A, qualitative accelerated tests . 17
5.1.1 Highly accelerated limit tests (HALT) . 17
5.1.2 Highly accelerated stress test (HAST) . 21
5.1.3 Highly accelerated stress screening or audit (HASS or HASA) . 22
5.1.4 Engineering aspects of HALT and HASS . 23
5.2 Types B and C – Quantitative accelerated test methods. 23
5.2.1 Purpose of quantitative accelerated testing . 23
5.2.2 Physical basis for the quantitative accelerated Type B test methods . 23
5.2.3 Type C tests, time (C ) and event (C ) compression . 25
1 2
5.3 Failure mechanisms and test design . 27
5.4 Determination of stress levels, profiles and combinations in use and test –
Stress modelling . 27
5.4.1 General . 27
5.4.2 Step-by-step procedure . 28
5.5 Multiple stress acceleration methodology – Type B tests . 28
5.6 Single and multiple stress acceleration for Type B tests . 31
5.6.1 Single stress acceleration methodology . 31
5.6.2 Stress models with stress varying as a function of time – Type B tests . 38
5.6.3 Stress models that depend on repetition of stress applications – Fatigue
models. 40
5.6.4 Other acceleration models . 41
5.7 Acceleration of quantitative reliability tests. 42
5.7.1 Reliability requirements, goals, and use profile . 42
5.7.2 Accelerated testing for reliability demonstration or life tests . 44
5.7.3 Testing of components for a reliability measure . 55
5.7.4 Reliability measures for components and systems . 56
5.8 Accelerated reliability compliance or evaluation tests . 57
5.9 Accelerated reliability growth testing . 58
5.10 Guidelines for accelerated testing . 59
5.10.1 Accelerated testing for multiple stresses and the known use profile . 59
5.10.2 Level of accelerated stresses . 59
5.10.3 Accelerated reliability and verification tests . 59
IEC 62506:2023 © IEC 2023 – 3 –
6 Accelerated testing strategy in product development . 60
6.1 Accelerated testing sampling plan . 60
6.2 General discussion about test stresses and durations . 60
6.3 Testing components for multiple stresses. 61
6.4 Accelerated testing of assemblies . 61
6.5 Accelerated testing of systems . 61
6.6 Analysis of test results . 62
7 Limitations of accelerated testing methodology . 62
Annex A (informative) Highly accelerated limit test (HALT) . 63
A.1 HALT procedure . 63
A.2 HALT step-by-step procedure . 63
A.3 Example 1 – HALT test results for a DC/DC converter. 65
A.4 Example 2 – HALT test results for a medical item . 65
A.5 HALT test results for a Hi-Fi equipment . 67
Annex B (informative) Accelerated reliability compliance and growth test design . 68
B.1 Use environment and test acceleration . 68
B.2 Determination of stresses and stress duration . 68
B.3 Overall acceleration of a reliability test . 69
B.4 Example of reliability compliance test design assuming constant failure rate
or failure intensity . 70
B.4.1 General .
...
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