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CEN ISO/TR 12489:2016

(Main)

Petroleum, petrochemical and natural gas industries - Reliability modelling and calculation of safety systems (ISO/TR 12489:2013)

Petroleum, petrochemical and natural gas industries - Reliability modelling and calculation of safety systems (ISO/TR 12489:2013)

ISO/TR 12489:2013 aims to close the gap between the state-of-the-art and the application of probabilistic calculations for the safety systems of the petroleum, petrochemical and natural gas industries. It provides guidelines for reliability and safety system analysts and the oil and gas industries.
The elementary approaches (e.g. PHA, HAZID, HAZOP, FMECA) are out of the scope of ISO/TR 12489:2013. Yet they are of utmost importance as their results provide the input information essential to properly undertake the implementation of the approaches described in ISO/TR 12489:2013: analytical formulae, Boolean approaches (reliability block diagrams, fault trees, event trees, etc.), Markov graphs and Petri nets.
ISO/TR 12489:2013 is focused on probabilistic calculations of random failures and, therefore, the non-random failures are out of the scope even if, to some extent, they are partly included into the reliability data collected from the field.

Erdöl-, petrochemische und Erdgasindustrie - Zuverlässigkeit der Modellierung und Berechnung von Sicherheitssystemen (ISO/TR 12489:2013)

Pétrole, pétrochimie et gaz naturel - Modélisation et calcul fiabilistes des systèmes de sécurité (ISO/TR 12489:2013)

Petrokemična industrija ter industrija za predelavo nafte in zemeljskega plina - Zanesljivost modeliranja in izračun varnostnega sistema (ISO/TR 12489:2013)

To tehnično poročilo želi zapolniti vrzel med najsodobnejšo tehnologijo in uporabo verjetnostnih izračunov za varnostne sisteme v petrokemični industriji ter industriji za predelavo nafte in zemeljskega plina. Poročilo podaja smernice za analitike sistemov zanesljivosti in varnosti v industriji za predelavo nafte in zemeljskega plina, ki jim omogočajo, da:
• pravilno razumejo pomen opredelitev, uporabljenih na področju zanesljivosti;
• prepoznajo
– zadevne varnostne sisteme;
– težave, s katerimi se lahko soočijo pri obravnavanju modeliranja zanesljivosti in izračunih varnostnih sistemov;
– relevantne verjetnostne parametre, ki jih je treba upoštevati;
• so obveščeni o učinkovitih rešitvah za premagovanje težav, s katerimi se soočijo, in lahko izvedejo
izračune na podlagi relevantnih verjetnostnih parametrov;
• pridobijo zadostno znanje o načelih in ogrodjih (npr. zmožnosti in omejitve modeliranja) ustaljenih pristopov, ki se trenutno uporabljajo na področju zanesljivosti:
– analitične formule;[1][2][13]
– Boolovi:
• blokovni diagrami zanesljivosti;[4]
• drevesa napak;[5]
– zaporedni diagrami: drevesa dogodkov,[8] diagrami vzroka in posledice[10] in diagram za analizo plasti zaščite (LOPA);[9]
– modeli Markova;[6]
– Petrijeve mreže;[7]
• pridobijo zadostno znanje o načelih verjetnostnih ocen:
– analitični izračuni (izvedeni npr. na Boolovih modelih ali modelih Markova);[1][2][3]
– simulacija Monte Carlo (izvedena npr. na Petrijevih mrežah[7]);
• izberejo pristop, ki ustreza zahtevnosti zadevnega varnostnega sistema in izvedene
raziskave zanesljivosti;
• varnost in zanesljivost (npr. za zagotavljanje proizvodnje, glejte točko 3.1.1) obravnavajo v okviru istega
ogrodja zanesljivosti.
Elementarni pristopi (npr. PHA, HAZID, HAZOP, FMECA) ne spadajo v področje uporabe tega tehničnega poročila. Kljub temu so ti pristopi nadvse pomembni in jih je treba primarno uporabiti, saj njihovi rezultati zagotovijo vhodne informacije, ki so ključnega pomena za ustrezno implementacijo pristopov, opisanih v tem tehničnem poročilu: analitičnih formul, Boolovih pristopov (blokovnih diagramov zanesljivosti, dreves napak, dreves
dogodkov itn.), grafov Markova in Petrijevih mrež.
To tehnično poročilo se osredotoča na verjetnostne izračune naključnih napak, zato nenaključne napake (tj. sistematične napake, kot so poimenovane v mednarodnem izrazju na področju zanesljivosti IEV 191[14]), ne spadajo v področje uporabe tega standarda, čeprav so v določeni meri vključene v podatke o zanesljivosti, zbrane na terenu.

General Information

Status
Published
Publication Date
26-Jan-2016
ICS
75.180.01 - Equipment for petroleum and natural gas industries in general
75.200 - Petroleum products and natural gas handling equipment
Technical Committee
CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
Drafting Committee
CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
27-Jan-2016
Completion Date
27-Jan-2016
Ref Project
SIST-TP CEN ISO/TR 12489:2016 - Petroleum, petrochemical and natural gas industries - Reliability modelling and calculation of safety systems (ISO/TR 12489:2013)

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SLOVENSKI STANDARD
01-marec-2016
3HWURNHPLþQDLQGXVWULMDWHULQGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD
=DQHVOMLYRVWPRGHOLUDQMDLQL]UDþXQYDUQRVWQHJDVLVWHPD ,6275
Petroleum, petrochemical and natural gas industries - Reliability modelling and
calculation of safety systems (ISO/TR 12489:2013)
Erdöl-, petrochemische und Erdgasindustrie - Zuverlässigkeit der Modellierung und
Berechnung von Sicherheitssystemen (ISO/TR 12489:2013)
Pétrole, pétrochimie et gaz naturel - Modélisation et calcul fiabilistes des systèmes de
sécurité (ISO/TR 12489:2013)
Ta slovenski standard je istoveten z: CEN ISO/TR 12489:2016
ICS:
75.180.01 Oprema za industrijo nafte in Equipment for petroleum and
zemeljskega plina na splošno natural gas industries in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN ISO/TR 12489
TECHNICAL REPORT
RAPPORT TECHNIQUE
January 2016
TECHNISCHER BERICHT
ICS 75.200; 75.180.01
English Version
Petroleum, petrochemical and natural gas industries -
Reliability modelling and calculation of safety systems
(ISO/TR 12489:2013)
Pétrole, pétrochimie et gaz naturel - Modélisation et Erdöl-, petrochemische und Erdgasindustrie -
calcul fiabilistes des systèmes de sécurité (ISO/TR Zuverlässigkeit der Modellierung und Berechnung von
12489:2013) Sicherheitssystemen (ISO/TR 12489:2013)

This Technical Report was approved by CEN on 28 March 2015. It has been drawn up by the Technical Committee CEN/TC 12.

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. CEN ISO/TR 12489:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
This document (CEN ISO/TR 12489:2016) 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.
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.
Endorsement notice
The text of ISO/TR 12489:2013 has been approved by CEN as CEN ISO/TR 12489:2016 without any
modification.
TECHNICAL ISO/TR
REPORT 12489
First edition
2013-11-01
Petroleum, petrochemical and natural
gas industries — Reliability modelling
and calculation of safety systems
Pétrole, pétrochimie et gaz naturel — Modélisation et calcul
fiabilistes des systèmes de sécurité
Reference number
ISO/TR 12489:2013(E)
©
ISO 2013
ISO/TR 12489:2013(E)
© ISO 2013
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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO/TR 12489:2013(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Analysis framework . 2
2.1 Users of this Technical Report . 2
2.2 ISO/TR 12489 with regard to risk and reliability analysis processes . 2
2.3 Overview of the reliability modelling and calculation approaches considered in this
Technical Report . 4
2.4 Safety systems and safety functions . 7
3 Terms and definitions . 8
3.1 Basic reliability concepts . 8
3.2 Failure classification.20
3.3 Safety systems typology .24
3.4 Maintenance issues .25
3.5 Other terms .28
3.6 Equipment-related terms .29
4 Symbols and abbreviated terms .30
5 Overview and challenges .33
5.1 General considerations about modelling and calculation challenges .33
5.2 Deterministic versus probabilistic approaches .35
5.3 Safe failure and design philosophy .35
5.4 Dependent failures .36
5.5 Human factors .37
5.6 Documentation of underlying assumptions .40
6 Introduction to modelling and calculations.41
6.1 Generalities about safety systems operating in “on demand” or “continuous” modes .41
6.2 Analytical approaches .44
7 Analytical formulae approach (low demand mode) .47
7.1 Introduction .47
7.2 Underlying hypothesis and main assumptions .47
7.3 Single failure analysis .48
7.4 Double failure analysis .50
7.5 Triple failure analysis .55
7.6 Common cause failures .56
7.7 Example of implementation of analytical formulae: the PDS method .57
7.8 Conclusion about analytical formulae approach .57
8 Boolean and sequential approaches .58
8.1 Introduction .58
8.2 Reliability block diagrams (RBD) .58
8.3 Fault Tree Analysis (FTA) .59
8.4 Sequence modelling: cause consequence diagrams, event tree analysis, LOPA .61
8.5 Calculations with Boolean models .61
8.6 Conclusion about the Boolean approach .64
9 Markovian approach .65
9.1 Introduction and principles .65
9.2 Multiphase Markov models .68
9.3 Conclusion about the Markovian approach .69
10 Petri net approach .69
10.1 Basic principle .69
10.2 RBD driven Petri net modelling .71
ISO/TR 12489:2013(E)
10.3 Conclusion about Petri net approach .74
11 Monte Carlo simulation approach .74
12 Numerical reliability data uncertainty handling .74
13 Reliability data considerations .75
13.1 Intro
...

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