Petroleum, petrochemical and natural gas industries - Collection and exchange of reliability and maintenance data for equipment (ISO 14224:2016, Corrected version 2016-10-01)

ISO 14224:2016 provides a comprehensive basis for the collection of reliability and maintenance (RM) data in a standard format for equipment in all facilities and operations within the petroleum, natural gas and petrochemical industries during the operational life cycle of equipment. It describes data collection principles and associated terms and definitions that constitute a "reliability language" that can be useful for communicating operational experience. The failure modes defined in the normative part of this International Standard can be used as a "reliability thesaurus" for various quantitative as well as qualitative applications. This International Standard also describes data quality control and assurance practices to provide guidance for the user.
Standardization of data collection practices facilitates the exchange of information between parties, e.g. plants, owners, manufacturers and contractors. This International Standard establishes requirements that any in-house or commercially available RM data system is required to meet when designed for RM data exchange. Examples, guidelines and principles for the exchange and merging of such RM data are addressed. This International Standard also provides a framework and guidelines for establishing performance objectives and requirements for equipment reliability and availability performance.
Annex A contains a summary of equipment that is covered by this International Standard.
ISO 14224:2016 defines a minimum amount of data that is required to be collected, and it focuses on two main issues:
- data requirements for the categories of data to be collected for use in various analysis methodologies;
- standardized data format to facilitate the exchange of reliability and maintenance data between plants, owners, manufacturers and contractors.
The following main categories of data are to be collected:
a) equipment data, e.g. equipment taxonomy, equipment attributes;
b) failure data, e.g. failure cause, failure consequence;
c) maintenance data, e.g. maintenance action, resources used, maintenance consequence, down time.
NOTE Clause 9 gives further details on data content and data format.
The main areas where such data are used are the following:
1) reliability, e.g. failure events and failure mechanisms;
2) availability/efficiency, e.g. equipment availability, system availability, plant production availability;
3) maintenance, e.g. corrective and preventive maintenance, maintenance plan, maintenance supportability;
4) safety and environment, e.g. equipment failures with adverse consequences for safety and/or environment.
ISO 14224:2016 does not apply to the following:
i. data on (direct) cost issues;
ii. data from laboratory testing and manufacturing (e.g. accelerated lifetime testing), see also 5.2;
iii. complete equipment data sheets (only data seen relevant for assessing the reliability performance are included);
iv. additional on-service data that an operator, on an individual basis, can consider useful for operation and maintenance;
v. methods for analysing and applying RM data (however, principles for how to calculate some basic reliability and maintenance parameters are included in the annexes).

Erdöl-, petrochemische und Erdgasindustrie - Sammlung und Austausch von Zuverlässigkeits- und Wartungsdaten für Ausrüstungen (ISO 14224:2016, korrigierte Fassung 2016-10-01)

Industries du pétrole, de la pétrochimie et du gaz naturel - Collecte et échange de données de fiabilité et de maintenance des équipements (ISO 14224:2016, Version corrigée 2016-10-01)

ISO 14224:2016 fournit une base globale pour la collecte de données de fiabilité et maintenance (FM) en format normalisé pour les équipements utilisés dans toutes installations et exploitations des industries du pétrole, de la pétrochimie et du gaz naturel et pendant le cycle de vie utile de l'équipement. Elle décrit les principes de la collecte de données ainsi que les termes et définitions associés qui constituent la base d'un «langage propre à la fiabilité» utile pour transmettre l'expérience acquise sur le terrain. La partie normative de la présente Norme internationale définit les modes de défaillance pouvant être utilisés comme un «thésaurus de la fiabilité» pour diverses applications tant sur le plan quantitatif que sur le plan qualitatif. En outre, la présente Norme internationale décrit les pratiques de contrôle et d'assurance qualité des données afin de guider l'utilisateur.
La normalisation des procédures de collecte de données facilite l'échange des informations notamment entre les installations, les propriétaires, les fabricants et les sous-traitants. La présente Norme internationale définit les exigences auxquelles doit satisfaire tout système de données FM destinées à être échangées, qu'il soit interne ou disponible dans le commerce. Elle présente également des exemples/lignes directrices/principes portant sur l'échange et la fusion de ces données FM. La présente Norme internationale est également un excellent support pour la définition des objectifs et des exigences de performance en termes de fiabilité et de disponibilité des équipements et donne des lignes directrices à ce sujet.
L'Annexe A récapitule les équipements couverts par la présente Norme internationale.
ISO 14224:2016 spécifie une quantité minimale de paramètres à collecter et met l'accent sur deux aspects principaux:
- les exigences applicables au type de données à collecter et à utiliser selon les différentes méthodes d'analyse;
- le format de données normalisé permettant de faciliter l'échange de données FM entre installations, propriétaires, fabricants et sous-traitants.
Les principales catégories de données à collecter sont les suivantes:
a) les données relatives à l'équipement, par exemple la taxinomie de l'équipement, les attributs de l'équipement;
b) les données de défaillance, par exemple la cause de la défaillance, la conséquence de la défaillance;
c) les données de maintenance, par exemple le type d'action réalisé, les ressources utilisées, la conséquence de la maintenance, le temps d'indisponibilité.
NOTE L'Article 9 donne des détails supplémentaires sur le contenu et le format des données.
Les prinpaux domaines dans lesquels ces données seront utilisées sont les suivants:
1) fiabilité, par exemple événements de défaillance et mécanismes de défaillance;
2) disponibilité/efficacité, par exemple disponibilité d'un équipement, disponibilité d'un système, disponibilité de production d'une installation;
3) maintenance, par exemple maintenance corrective et préventive, plan de maintenance, supportabilité de maintenance;
4) sécurité et environnement, par exemple défaillances d'équipement ayant des conséquences défavorables sur la sécurité et/ou l'environnement.
La présente Norme internationale ne couvre pas:
i. les données relatives aux problématiques de coûts (directs);
ii. les données relatives aux essais et à la fabrication en laboratoire (par exemple les essais de durée de vie accélérés), voir également 5.2;
iii. les fiches techniq

Petrokemična industrija ter industrija za predelavo nafte in zemeljskega plina - Zbiranje in izmenjava podatkov o zanesljivosti in vzdrževanju opreme (ISO 14224:2016, popravljena različica 2016-10-01)

Ta mednarodni standard podaja obsežno osnovo za zbiranje podatkov o zanesljivosti in vzdrževanju (RM) v standardnem formatu za opremo v vseh obratih in postopkih v petrokemični industriji in industriji za predelavo nafte in zemeljskega plina med življenjskim ciklom opreme. Opisuje načela zbiranja podatkov ter s tem povezane izraze in opredelitve, ki sestavljajo »jezik zanesljivosti«, ki je uporaben za posredovanje izkušenj pri uporabi opreme. Načini odpovedi, ki so opredeljeni v normativnem delu tega mednarodnega standarda, se lahko uporabljajo kot »tezaver zanesljivosti« za različne kvantitativne in kvalitativne primere uporabe. Ta mednarodni standard opisuje tudi kontrolo kakovosti podatkov in prakse zagotavljanja kakovosti z namenom podajanja smernic uporabniku.
Standardizacija praks zbiranja podatkov omogoča lažjo izmenjavo informacij med strankami (npr. obrati, lastniki, proizvajalci in zunanjimi izvajalci). Ta mednarodni standard določa zahteve, ki jih mora vsak interni in komercialno dostopni sistem podatkov RM izpolnjevati, če je zasnovan za izmenjavo podatkov RM. Obravnavani so primeri, smernice ter načela izmenjave in združevanja podatkov RM. Ta mednarodni standard zagotavlja tudi okvirno strukturo in smernice za vzpostavljanje ciljev delovanja ter zahtev za zanesljivost in razpoložljivost opreme.
Dodatek A vsebuje povzetek opreme, ki je zajeta v tem mednarodnem standardu.
Ta mednarodni standard opredeljuje najmanjšo količino podatkov, ki jo je treba zajeti, in se osredotoča na dve glavni težavi:
– podatkovne zahteve za kategorije podatkov, ki jih je treba zbrati za uporabo pri različnih metodologijah analize;
– standardiziran format podatkov za lažjo izmenjavo podatkov o zanesljivosti in vzdrževanju med obrati, lastniki, proizvajalci in zunanjimi izvajalci.
Naslednje glavne kategorije podatkov so namenjene zbiranju:
a) podatki o opremi (npr. taksonomija opreme, lastnosti opreme);
b) podatki o odpovedi (npr. razlog za odpoved, posledica odpovedi);
c) podatki o vzdrževanju (npr. vzdrževalni ukrep, porabljeni viri, posledica vzdrževanja, čas nedejavnosti).
OPOMBA: Točka 9 podaja dodatne podrobnosti o vsebini podatkov in formatu podatkov.
Glavna področja, kjer se taki podatki uporabljajo:
1) zanesljivost (npr. odpovedi in mehanizmi odpovedi);
2) razpoložljivost/učinkovitost (npr. razpoložljivost opreme, razpoložljivost sistemov, razpoložljivost proizvodnega obrata);
3) vzdrževanje (npr. korektivno in preventivno vzdrževanje, načrt vzdrževanja, podpora vzdrževanja);
4) varnost in okolje (npr. okvare opreme z neželenimi posledicami za varnost in/ali okolje).
Ta mednarodni standard se ne uporablja za:
i.   podatke o vprašanjih glede (neposrednih) stroškov;
ii.    podatke iz laboratorijskih preskusov in proizvodnje (npr. preskusov s pospeševanjem življenjskega cikla), glej tudi točko 5.2;
iii.    celotne tehnične liste opreme (vključeni so samo podatki, ki so uporabni za ocenjevanje zanesljivosti opreme);
iv.   dodatne podatke o storitvi, ki jih operater po lastni presoji lahko smatra kot uporabne za uporabo ali vzdrževanje opreme;
v.   metode za analizo in uporabo podatkov RM (vendar načela izračuna nekaterih osnovnih
vi.   parametrov zanesljivosti in vzdrževanja so vključena v dodatke).

General Information

Status
Published
Publication Date
18-Oct-2016
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
19-Oct-2016
Completion Date
19-Oct-2016

RELATIONS

Buy Standard

Standard
EN ISO 14224:2016 - BARVE na PDF-str 182
English language
281 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day
Standard
EN ISO 14224:2016 - BARVE na PDF-str 182
English language
281 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN ISO 14224:2016
01-december-2016
Nadomešča:
SIST EN ISO 14224:2007
Petrokemična industrija ter industrija za predelavo nafte in zemeljskega plina -
Zbiranje in izmenjava podatkov o zanesljivosti in vzdrževanju opreme (ISO
14224:2016, popravljena različica 2016-10-01)
Petroleum, petrochemical and natural gas industries - Collection and exchange of

reliability and maintenance data for equipment (ISO 14224:2016, Corrected version 2016

-10-01)
Erdöl-, petrochemische und Erdgasindustrie - Sammlung und Austausch von

Zuverlässigkeits- und Wartungsdaten für Ausrüstungen (ISO 14224:2016, korrigierte

Fassung 2016-10-01)

Industries du pétrole, de la pétrochimie et du gaz naturel - Collecte et échange de

données de fiabilité et de maintenance des équipements (ISO 14224:2016, Version
corrigée 2016-10-01)
Ta slovenski standard je istoveten z: EN ISO 14224:2016
ICS:
75.180.01 Oprema za industrijo nafte in Equipment for petroleum and
zemeljskega plina na splošno natural gas industries in
general
SIST EN ISO 14224:2016 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 14224:2016
---------------------- Page: 2 ----------------------
SIST EN ISO 14224:2016
EN ISO 14224
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2016
EUROPÄISCHE NORM
ICS 75.180.01; 75.200 Supersedes EN ISO 14224:2006
English Version
Petroleum, petrochemical and natural gas industries -
Collection and exchange of reliability and maintenance
data for equipment (ISO 14224:2016, Corrected version
2016-10-01)

Industries du pétrole, de la pétrochimie et du gaz Erdöl-, petrochemische und Erdgasindustrie -

naturel - Collecte et échange de données de fiabilité et Sammlung und Austausch von Zuverlässigkeits- und

de maintenance des équipements (ISO 14224:2016, Wartungsdaten für Ausrüstungen (ISO 14224:2016,

Version corrigée 2016-10-01) korrigierte Fassung 2016-10-01)
This European Standard was approved by CEN on 22 July 2016.

CEN 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 CEN

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 CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14224:2016 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 14224:2016
EN ISO 14224:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 14224:2016
EN ISO 14224:2016 (E)
European foreword

This document (EN ISO 14224:2016) has been prepared by Technical Committee ISO/TC 67 “Materials,

equipment and offshore structures for petroleum, petrochemical and natural gas industries” in

collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for

petroleum, petrochemical and natural gas industries” the secretariat of which is held by NEN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by April 2017, and conflicting national standards shall be

withdrawn at the latest by April 2017.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent

rights.
This document supersedes EN ISO 14224:2006.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
Endorsement notice

The text of ISO 14224:2016, Corrected version 2016-10-01 has been approved by CEN as

EN ISO 14224:2016 without any modification.
---------------------- Page: 5 ----------------------
SIST EN ISO 14224:2016
---------------------- Page: 6 ----------------------
SIST EN ISO 14224:2016
INTERNATIONAL ISO
STANDARD 14224
Third edition
2016-09-15
Corrected version
2016-10-01
Petroleum, petrochemical and
natural gas industries — Collection
and exchange of reliability and
maintenance data for equipment
Industries du pétrole, de la pétrochimie et du gaz naturel — Collecte
et échange de données de fiabilité et de maintenance des équipements
Reference number
ISO 14224:2016(E)
ISO 2016
---------------------- Page: 7 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

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

2 Normative references ...................................................................................................................................................................................... 2

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

4 Abbreviated terms ...........................................................................................................................................................................................18

5 Application ..............................................................................................................................................................................................................20

5.1 Equipment coverage ........................................................................................................................................................................20

5.2 Time periods ..........................................................................................................................................................................................20

5.3 Users of this International Standard .................................................................................................................................20

5.4 Limitations ...............................................................................................................................................................................................21

5.5 Exchange of RM data .......................................................................................................................................................................22

6 Benefits of RM data collection and exchange .......................................................................................................................23

7 Quality of data ......................................................................................................................................................................................................25

7.1 Obtaining quality data ...................................................................................................................................................................25

7.1.1 Definition of data quality .......................................................................................................................................25

7.1.2 Planning measures ......................................................................................................................................................25

7.1.3 Verification of quality ...............................................................................................................................................26

7.1.4 Limitations and problems .....................................................................................................................................27

7.2 Data collection process .................................................................................................................................................................27

7.2.1 Data sources ......................................................................................................................................................................27

7.2.2 Data collection methods .........................................................................................................................................28

7.2.3 Organization and training .....................................................................................................................................28

8 Equipment boundary, taxonomy and time definitions ..............................................................................................29

8.1 Boundary description ....................................................................................................................................................................29

8.2 Taxonomy .................................................................................................................................................................................................30

8.3 Timeline issues ....................................................................................................................................................................................32

8.3.1 Surveillance and operating period ................................................................................................................32

8.3.2 Data collection periods ............................................................................................................................................33

8.3.3 Maintenance times ......................................................................................................................................................34

9 Recommended data for equipment, failures and maintenance .......................................................................35

9.1 Data categories ....................................................................................................................................................................................35

9.2 Data format .............................................................................................................................................................................................35

9.3 Database structure ...........................................................................................................................................................................36

9.3.1 Description .................. .................................................... ...................................................................................................36

9.3.2 Logical structure ...........................................................................................................................................................36

9.3.3 Database architecture...............................................................................................................................................37

9.4 Equipment data ...................................................................................................................................................................................38

9.5 Failure data .............................................................................................................................................................................................40

9.6 Maintenance data...............................................................................................................................................................................42

9.6.1 General...................................................................................................................................................................................42

9.6.2 Maintenance categories ..........................................................................................................................................42

9.6.3 Reporting maintenance data ..............................................................................................................................43

Annex A (informative) Equipment-class attributes ...........................................................................................................................46

Annex B (normative) Interpretation and notation of failure and maintenance parameters .............176

Annex C (informative) Guide to interpretation and calculation of derived reliability and

maintenance parameters .....................................................................................................................................................................205

Annex D (informative) Typical requirements for data ...............................................................................................................229

© ISO 2016 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)

Annex E (informative) Key performance indicators (KPIs) and benchmarking ..............................................238

Annex F (informative) Classification and definition of safety critical failures ..................................................251

Bibliography .........................................................................................................................................................................................................................260

iv © ISO 2016 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received. www.iso.org/patents

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical

Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is Technical Committee ISO/TC 67, Materials, equipment

and offshore structures for petroleum, petrochemical and natural gas industries.

This third edition cancels and replaces the second edition (ISO 14224:2006), which has been technically

revised. The main changes are:
— Clause 3 — several new definitions;
— Clauses 8 and 9 — changes in some figures and tables;
— Annex A — new equipment classes;
— Annex B — associated new and aligned failure modes;
— Annex C — some changes and new subclauses, e.g. C.3.4 and C.7;
— Annex D — new subclause D.5;
— Annex E — new KPIs;
— Annex F — alignment with ISO/TR 12489:2013.

This corrected version of ISO 14224:2016 incorporates various editorial corrections.

© ISO 2016 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
Introduction

This International Standard has been prepared based on the previous edition (ISO 14224:2006),

experience gained through its use, and know-how and best practices shared through the international

development process.

In the petroleum, petrochemical and natural gas industries, great attention is being paid to safety,

availability, reliability and maintainability of equipment. The industry annual cost of equipment

unavailability is very large, although many plant owners have improved the availability of their

operating facilities by addressing this challenge. A stronger emphasis has recently been put on cost-

effective design and maintenance for new plants and existing installations among more industrial

parties. In this respect, data on failures, failure mechanisms and maintenance related to these industrial

facilities and its operations have become more important. It is necessary that this information is used

by, and communicated between, the various parties and its disciplines, within the same company or

between companies. Various analysis methodologies are used to estimate the risk of hazards to people

and environment, or to analyse plant or system performance. For such analyses to be effective and

decisive, equipment reliability and maintenance (RM) data are vital.

These analyses require a clear understanding of the equipment’s technical characteristics, its operating

and environmental conditions, its potential failures and its maintenance activities. It can be necessary

to have data covering several years of operation before sufficient data have been accumulated to

give confident analysis results and relevant decision support. It is necessary, therefore, to view data

collection as a long-term activity, planned and executed with appropriate goals in mind. At the same

time, clarity as to the causes of failures is key to prioritizing and implementing corrective actions that

result in sustainable improvements in availability, leading to improved profitability and safety.

Data collection is an investment. Data standardization, when combined with enhanced data-

management systems that allow electronic collection and transfer of data, can result in improved

quality of data for reliability and maintenance. A cost-effective way of optimizing data requirements

is through industry co-operation. To make it possible to collect, exchange and analyse data based on

common viewpoints, a standard is required. Standardization of data collection practices facilitates the

exchange of information between relevant parties e.g. plants, owners, manufacturers and contractors

throughout the world.
vi © ISO 2016 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 14224:2016
INTERNATIONAL STANDARD ISO 14224:2016(E)
Petroleum, petrochemical and natural gas industries —
Collection and exchange of reliability and maintenance
data for equipment
1 Scope

This International Standard provides a comprehensive basis for the collection of reliability and

maintenance (RM) data in a standard format for equipment in all facilities and operations within the

petroleum, natural gas and petrochemical industries during the operational life cycle of equipment. It

describes data collection principles and associated terms and definitions that constitute a “reliability

language” that can be useful for communicating operational experience. The failure modes defined in

the normative part of this International Standard can be used as a “reliability thesaurus” for various

quantitative as well as qualitative applications. This International Standard also describes data quality

control and assurance practices to provide guidance for the user.

Standardization of data collection practices facilitates the exchange of information between parties, e.g.

plants, owners, manufacturers and contractors. This International Standard establishes requirements

that any in-house or commercially available RM data system is required to meet when designed for

RM data exchange. Examples, guidelines and principles for the exchange and merging of such RM data

are addressed. This International Standard also provides a framework and guidelines for establishing

performance objectives and requirements for equipment reliability and availability performance.

Annex A contains a summary of equipment that is covered by this International Standard.

This International Standard defines a minimum amount of data that is required to be collected, and it

focuses on two main issues:

— data requirements for the categories of data to be collected for use in various analysis methodologies;

— standardized data format to facilitate the exchange of reliability and maintenance data between

plants, owners, manufacturers and contractors.
The following main categories of data are to be collected:
a) equipment data, e.g. equipment taxonomy, equipment attributes;
b) failure data, e.g. failure cause, failure consequence;

c) maintenance data, e.g. maintenance action, resources used, maintenance consequence, down time.

NOTE Clause 9 gives further details on data content and data format.
The main areas where such data are used are the following:
1) reliability, e.g. failure events and failure mechanisms;

2) availability/efficiency, e.g. equipment availability, system availability, plant production availability;

3) maintenance, e.g. corrective and preventive maintenance, maintenance plan, maintenance

supportability;

4) safety and environment, e.g. equipment failures with adverse consequences for safety and/or

environment.
This International Standard does not apply to the following:
i. data on (direct) cost issues;
© ISO 2016 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)

ii. data from laboratory testing and manufacturing (e.g. accelerated lifetime testing), see also 5.2;

iii. complete equipment data sheets (only data seen relevant for assessing the reliability performance

are included);

iv. additional on-service data that an operator, on an individual basis, can consider useful for operation

and maintenance;

v. methods for analysing and applying RM data (however, principles for how to calculate some basic

reliability and maintenance parameters are included in the annexes).
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 20815:2008, Petroleum, petrochemical and natural gas industries — Production assurance and

reliability management
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

NOTE Some derived RM parameters, which can be calculated from collected RM data covered by this

International Standard, are contained in Annex C. References to Annex C are given as deemed appropriate.

3.1
active maintenance time
duration of a maintenance action, excluding logistic delay
Note 1 to entry: Technical delays are included in the active maintenance time.

Note 2 to entry: See Figure 4 and Annex C for a more detailed description and interpretation of maintenance

times. See also ISO/TR 12489:2013, Figure 5.

Note 3 to entry: A maintenance action can be carried out while the item is performing a required function.

[SOURCE: IEC 60050-192:2015, 192-07-04, modified – Notes 2 and 3 to entry have been added.]

3.2
active repair time
effective time to achieve repair of an item
Note 1 to entry: See also ISO/TR 12489:2013, Figures 5 and 6.

Note 2 to entry: See also definition of “mean active repair time (MART)” in ISO/TR 12489:2013, 3.1.34, that is

defined as “expected active repair time”.
3.3
availability
ability to be in a state to perform as required

Note 1 to entry: See Annex C for a more detailed description and interpretation of availability.

Note 2 to entry: Further terms are given in ISO/TR 12489:2013.

[SOURCE: IEC 60050-192:2015, 192-01-23, modified – Notes 1 and 2 to entry have been added.]

3.4
boundary
interface between an item and its surroundings
2 © ISO 2016 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
3.5
common cause failures

failures of multiple items, which would otherwise be considered independent of one another, resulting

from a single cause
Note 1 to entry: Common cause failures can also be common mode failures.

Note 2 to entry: The potential for common cause failures reduces the effectiveness of system redundancy.

Note 3 to entry: It is generally accepted that the failures occur simultaneously or within a short time of each other.

Note 4 to entry: Components that fail due to a shared cause normally fail in the same functional mode. The term

common mode is therefore sometimes used. It is, however, not considered to be a precise term for communicating

the characteristics that describe a common cause failure.
Note 5 to entry: See also ISO/TR 12489:2013, 3.2.14 and 5.4.2.
Note 6 to entry: See also C.1.6

[SOURCE: IEC 60050-192:2015, 192-03-18, modified – Notes 3-6 to entry have been added.]

3.6
common mode failures
failures of different items characterized by the same failure mode
Note 1 to entry: Common mode failures can have different causes.
Note 2 to entry: Common mode failures can also be common cause failures (3.5).

Note 3 to entry: The potential for common mode failures reduces the effectiveness of system redundancy.

[SOURCE: IEC 60050-192:2015, 192-03-19, modified]
3.7
condition-based maintenance
CBM
preventive maintenance based on the assessment of physical condition

Note 1 to entry: The condition assessment can be by operator observation, conducted according to a schedule, or

by condition monitoring of system parameters.
[SOURCE: IEC 60050-192:2015, 192-06-07, modified]
3.8
corrective maintenance
maintenance carried out after fault detection to effect restoration

Note 1 to entry: Corrective maintenance of software invariably involves some modification

Note 2 to entry: See also ISO/TR 12489:2013, Figures 5 and 6, which illustrate terms used for quantifying

corrective maintenance.

[SOURCE: IEC 60050-192:2015, 192-06-06, modified – Note 2 to entry has been added.]

3.9
critical failure

failure of an equipment unit that causes an immediate cessation of the ability to perform a required

function
Note 1 to entry: Includes failures requiring immediate action towards c
...

SLOVENSKI STANDARD
SIST EN ISO 14224:2016
01-december-2016
1DGRPHãþD
SIST EN ISO 14224:2007
3HWURNHPLþQDLQGXVWULMDWHULQGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD
=ELUDQMHLQL]PHQMDYDSRGDWNRYR]DQHVOMLYRVWLLQY]GUåHYDQMXRSUHPH ,62

Petroleum, petrochemical and natural gas industries - Collection and exchange of
reliability and maintenance data for equipment (ISO 14224:2016)
Erdöl-, petrochemische und Erdgasindustrie - Sammlung und Austausch von
Zuverlässigkeits- und Wartungsdaten für Ausrüstungen (ISO 14224:2016)

Industries du pétrole, de la pétrochimie et du gaz naturel - Recueil et échange de

données de fiabilité et de maintenance des équipements (ISO 14224:2016)
Ta slovenski standard je istoveten z: EN ISO 14224:2016
ICS:
75.180.01 Oprema za industrijo nafte in Equipment for petroleum and
zemeljskega plina na splošno natural gas industries in
general
SIST EN ISO 14224:2016 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 14224:2016
---------------------- Page: 2 ----------------------
SIST EN ISO 14224:2016
EN ISO 14224
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2016
EUROPÄISCHE NORM
ICS 75.180.01; 75.200 Supersedes EN ISO 14224:2006
English Version
Petroleum, petrochemical and natural gas industries -
Collection and exchange of reliability and maintenance
data for equipment (ISO 14224:2016)

Industries du pétrole, de la pétrochimie et du gaz Erdöl-, petrochemische und Erdgasindustrie -

naturel - Collecte et échange de données de fiabilité et Sammlung und Austausch von Zuverlässigkeits- und

de maintenance des équipements (ISO 14224:2016) Wartungsdaten für Ausrüstungen (ISO 14224:2016)

This European Standard was approved by CEN on 22 July 2016.

CEN 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 CEN

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 CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14224:2016 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 14224:2016
EN ISO 14224:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 14224:2016
EN ISO 14224:2016 (E)
European foreword

This document (EN ISO 14224:2016) has been prepared by Technical Committee ISO/TC 67 “Materials,

equipment and offshore structures for petroleum, petrochemical and natural gas industries” in

collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for

petroleum, petrochemical and natural gas industries” the secretariat of which is held by NEN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by April 2017, and conflicting national standards shall be

withdrawn at the latest by April 2017.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent

rights.
This document supersedes EN ISO 14224:2006.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
Endorsement notice

The text of ISO 14224:2016 has been approved by CEN as EN ISO 14224:2016 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 14224:2016
---------------------- Page: 6 ----------------------
SIST EN ISO 14224:2016
INTERNATIONAL ISO
STANDARD 14224
Third edition
2016-09-15
Corrected version
2016-10-01
Petroleum, petrochemical and
natural gas industries — Collection
and exchange of reliability and
maintenance data for equipment
Industries du pétrole, de la pétrochimie et du gaz naturel — Collecte
et échange de données de fiabilité et de maintenance des équipements
Reference number
ISO 14224:2016(E)
ISO 2016
---------------------- Page: 7 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

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

2 Normative references ...................................................................................................................................................................................... 2

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

4 Abbreviated terms ...........................................................................................................................................................................................18

5 Application ..............................................................................................................................................................................................................20

5.1 Equipment coverage ........................................................................................................................................................................20

5.2 Time periods ..........................................................................................................................................................................................20

5.3 Users of this International Standard .................................................................................................................................20

5.4 Limitations ...............................................................................................................................................................................................21

5.5 Exchange of RM data .......................................................................................................................................................................22

6 Benefits of RM data collection and exchange .......................................................................................................................23

7 Quality of data ......................................................................................................................................................................................................25

7.1 Obtaining quality data ...................................................................................................................................................................25

7.1.1 Definition of data quality .......................................................................................................................................25

7.1.2 Planning measures ......................................................................................................................................................25

7.1.3 Verification of quality ...............................................................................................................................................26

7.1.4 Limitations and problems .....................................................................................................................................27

7.2 Data collection process .................................................................................................................................................................27

7.2.1 Data sources ......................................................................................................................................................................27

7.2.2 Data collection methods .........................................................................................................................................28

7.2.3 Organization and training .....................................................................................................................................28

8 Equipment boundary, taxonomy and time definitions ..............................................................................................29

8.1 Boundary description ....................................................................................................................................................................29

8.2 Taxonomy .................................................................................................................................................................................................30

8.3 Timeline issues ....................................................................................................................................................................................32

8.3.1 Surveillance and operating period ................................................................................................................32

8.3.2 Data collection periods ............................................................................................................................................33

8.3.3 Maintenance times ......................................................................................................................................................34

9 Recommended data for equipment, failures and maintenance .......................................................................35

9.1 Data categories ....................................................................................................................................................................................35

9.2 Data format .............................................................................................................................................................................................35

9.3 Database structure ...........................................................................................................................................................................36

9.3.1 Description .................. .................................................... ...................................................................................................36

9.3.2 Logical structure ...........................................................................................................................................................36

9.3.3 Database architecture...............................................................................................................................................37

9.4 Equipment data ...................................................................................................................................................................................38

9.5 Failure data .............................................................................................................................................................................................40

9.6 Maintenance data...............................................................................................................................................................................42

9.6.1 General...................................................................................................................................................................................42

9.6.2 Maintenance categories ..........................................................................................................................................42

9.6.3 Reporting maintenance data ..............................................................................................................................43

Annex A (informative) Equipment-class attributes ...........................................................................................................................46

Annex B (normative) Interpretation and notation of failure and maintenance parameters .............176

Annex C (informative) Guide to interpretation and calculation of derived reliability and

maintenance parameters .....................................................................................................................................................................205

Annex D (informative) Typical requirements for data ...............................................................................................................229

© ISO 2016 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)

Annex E (informative) Key performance indicators (KPIs) and benchmarking ..............................................238

Annex F (informative) Classification and definition of safety critical failures ..................................................251

Bibliography .........................................................................................................................................................................................................................260

iv © ISO 2016 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received. www.iso.org/patents

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical

Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is Technical Committee ISO/TC 67, Materials, equipment

and offshore structures for petroleum, petrochemical and natural gas industries.

This third edition cancels and replaces the second edition (ISO 14224:2006), which has been technically

revised. The main changes are:
— Clause 3 — several new definitions;
— Clauses 8 and 9 — changes in some figures and tables;
— Annex A — new equipment classes;
— Annex B — associated new and aligned failure modes;
— Annex C — some changes and new subclauses, e.g. C.3.4 and C.7;
— Annex D — new subclause D.5;
— Annex E — new KPIs;
— Annex F — alignment with ISO/TR 12489:2013.

This corrected version of ISO 14224:2016 incorporates various editorial corrections.

© ISO 2016 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
Introduction

This International Standard has been prepared based on the previous edition (ISO 14224:2006),

experience gained through its use, and know-how and best practices shared through the international

development process.

In the petroleum, petrochemical and natural gas industries, great attention is being paid to safety,

availability, reliability and maintainability of equipment. The industry annual cost of equipment

unavailability is very large, although many plant owners have improved the availability of their

operating facilities by addressing this challenge. A stronger emphasis has recently been put on cost-

effective design and maintenance for new plants and existing installations among more industrial

parties. In this respect, data on failures, failure mechanisms and maintenance related to these industrial

facilities and its operations have become more important. It is necessary that this information is used

by, and communicated between, the various parties and its disciplines, within the same company or

between companies. Various analysis methodologies are used to estimate the risk of hazards to people

and environment, or to analyse plant or system performance. For such analyses to be effective and

decisive, equipment reliability and maintenance (RM) data are vital.

These analyses require a clear understanding of the equipment’s technical characteristics, its operating

and environmental conditions, its potential failures and its maintenance activities. It can be necessary

to have data covering several years of operation before sufficient data have been accumulated to

give confident analysis results and relevant decision support. It is necessary, therefore, to view data

collection as a long-term activity, planned and executed with appropriate goals in mind. At the same

time, clarity as to the causes of failures is key to prioritizing and implementing corrective actions that

result in sustainable improvements in availability, leading to improved profitability and safety.

Data collection is an investment. Data standardization, when combined with enhanced data-

management systems that allow electronic collection and transfer of data, can result in improved

quality of data for reliability and maintenance. A cost-effective way of optimizing data requirements

is through industry co-operation. To make it possible to collect, exchange and analyse data based on

common viewpoints, a standard is required. Standardization of data collection practices facilitates the

exchange of information between relevant parties e.g. plants, owners, manufacturers and contractors

throughout the world.
vi © ISO 2016 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 14224:2016
INTERNATIONAL STANDARD ISO 14224:2016(E)
Petroleum, petrochemical and natural gas industries —
Collection and exchange of reliability and maintenance
data for equipment
1 Scope

This International Standard provides a comprehensive basis for the collection of reliability and

maintenance (RM) data in a standard format for equipment in all facilities and operations within the

petroleum, natural gas and petrochemical industries during the operational life cycle of equipment. It

describes data collection principles and associated terms and definitions that constitute a “reliability

language” that can be useful for communicating operational experience. The failure modes defined in

the normative part of this International Standard can be used as a “reliability thesaurus” for various

quantitative as well as qualitative applications. This International Standard also describes data quality

control and assurance practices to provide guidance for the user.

Standardization of data collection practices facilitates the exchange of information between parties, e.g.

plants, owners, manufacturers and contractors. This International Standard establishes requirements

that any in-house or commercially available RM data system is required to meet when designed for

RM data exchange. Examples, guidelines and principles for the exchange and merging of such RM data

are addressed. This International Standard also provides a framework and guidelines for establishing

performance objectives and requirements for equipment reliability and availability performance.

Annex A contains a summary of equipment that is covered by this International Standard.

This International Standard defines a minimum amount of data that is required to be collected, and it

focuses on two main issues:

— data requirements for the categories of data to be collected for use in various analysis methodologies;

— standardized data format to facilitate the exchange of reliability and maintenance data between

plants, owners, manufacturers and contractors.
The following main categories of data are to be collected:
a) equipment data, e.g. equipment taxonomy, equipment attributes;
b) failure data, e.g. failure cause, failure consequence;

c) maintenance data, e.g. maintenance action, resources used, maintenance consequence, down time.

NOTE Clause 9 gives further details on data content and data format.
The main areas where such data are used are the following:
1) reliability, e.g. failure events and failure mechanisms;

2) availability/efficiency, e.g. equipment availability, system availability, plant production availability;

3) maintenance, e.g. corrective and preventive maintenance, maintenance plan, maintenance

supportability;

4) safety and environment, e.g. equipment failures with adverse consequences for safety and/or

environment.
This International Standard does not apply to the following:
i. data on (direct) cost issues;
© ISO 2016 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)

ii. data from laboratory testing and manufacturing (e.g. accelerated lifetime testing), see also 5.2;

iii. complete equipment data sheets (only data seen relevant for assessing the reliability performance

are included);

iv. additional on-service data that an operator, on an individual basis, can consider useful for operation

and maintenance;

v. methods for analysing and applying RM data (however, principles for how to calculate some basic

reliability and maintenance parameters are included in the annexes).
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 20815:2008, Petroleum, petrochemical and natural gas industries — Production assurance and

reliability management
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

NOTE Some derived RM parameters, which can be calculated from collected RM data covered by this

International Standard, are contained in Annex C. References to Annex C are given as deemed appropriate.

3.1
active maintenance time
duration of a maintenance action, excluding logistic delay
Note 1 to entry: Technical delays are included in the active maintenance time.

Note 2 to entry: See Figure 4 and Annex C for a more detailed description and interpretation of maintenance

times. See also ISO/TR 12489:2013, Figure 5.

Note 3 to entry: A maintenance action can be carried out while the item is performing a required function.

[SOURCE: IEC 60050-192:2015, 192-07-04, modified – Notes 2 and 3 to entry have been added.]

3.2
active repair time
effective time to achieve repair of an item
Note 1 to entry: See also ISO/TR 12489:2013, Figures 5 and 6.

Note 2 to entry: See also definition of “mean active repair time (MART)” in ISO/TR 12489:2013, 3.1.34, that is

defined as “expected active repair time”.
3.3
availability
ability to be in a state to perform as required

Note 1 to entry: See Annex C for a more detailed description and interpretation of availability.

Note 2 to entry: Further terms are given in ISO/TR 12489:2013.

[SOURCE: IEC 60050-192:2015, 192-01-23, modified – Notes 1 and 2 to entry have been added.]

3.4
boundary
interface between an item and its surroundings
2 © ISO 2016 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 14224:2016
ISO 14224:2016(E)
3.5
common cause failures

failures of multiple items, which would otherwise be considered independent of one another, resulting

from a single cause
Note 1 to entry: Common cause failures can also be common mode failures.

Note 2 to entry: The potential for common cause failures reduces the effectiveness of system redundancy.

Note 3 to entry: It is generally accepted that the failures occur simultaneously or within a short time of each other.

Note 4 to entry: Components that fail due to a shared cause normally fail in the same functional mode. The term

common mode is therefore sometimes used. It is, however, not considered to be a precise term for communicating

the characteristics that describe a common cause failure.
Note 5 to entry: See also ISO/TR 12489:2013, 3.2.14 and 5.4.2.
Note 6 to entry: See also C.1.6

[SOURCE: IEC 60050-192:2015, 192-03-18, modified – Notes 3-6 to entry have been added.]

3.6
common mode failures
failures of different items characterized by the same failure mode
Note 1 to entry: Common mode failures can have different causes.
Note 2 to entry: Common mode failures can also be common cause failures (3.5).

Note 3 to entry: The potential for common mode failures reduces the effectiveness of system redundancy.

[SOURCE: IEC 60050-192:2015, 192-03-19, modified]
3.7
condition-based maintenance
CBM
preventive maintenance based on the assessment of physical condition

Note 1 to entry: The condition assessment can be by operator observation, conducted according to a schedule, or

by condition monitoring of system parameters.
[SOURCE: IEC 60050-192:2015, 192-06-07, modified]
3.8
corrective maintenance
maintenance carried out after fault detection to effect restoration

Note 1 to entry: Corrective maintenance of software invariably involves some modification

Note 2 to entry: See also ISO/TR 12489:2013, Figures 5 and 6, which illustrate terms used for quantifying

corrective maintenance.

[SOURCE: IEC 60050-192:2015, 192-06-06, modified – Note 2 to entry has been added.]

3.9
critical failure

failure of an equipment unit that causes an immediate cessation of the ability to perform a required

function

Note 1 to entry: Includes failures requiring immediate action towards cessation of performing the function, even

though actual operation can continue for a short period of time. A critical failure results in an unscheduled repair.

Note 2 to entry: See also definition of “critical dangerous failur
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.