EN ISO 13849-2:2012

SLOVENSKI STANDARD
01-april-2013
1DGRPHãþD
SIST EN ISO 13849-2:2008
Varnost strojev - Z varnostjo povezani deli krmilnih sistemov - 2. del: Potrjevanje
(ISO 13849-2:2012)
Safety of machinery - Safety-related parts of control systems - Part 2: Validation (ISO
13849-2:2012)
Sicherheit von Maschinen und Geräten - Sicherheitsbezogene Teile von Steuerungen -
Teil 2: Validierung (ISO 13849-2:2012)
Sécurité des machines - Parties des systèmes de commande relatifs à la sécurité -
Partie 2: Validation (ISO 13849-2:2012)
Ta slovenski standard je istoveten z: EN ISO 13849-2:2012
ICS:
13.110 Varnost strojev Safety of machinery
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 13849-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2012
ICS 13.110 Supersedes EN ISO 13849-2:2008
English Version
Safety of machinery - Safety-related parts of control systems -
Part 2: Validation (ISO 13849-2:2012)
Sécurité des machines - Parties des systèmes de Sicherheit von Maschinen - Sicherheitsbezogene Teile von
commande relatives à la sécurité - Partie 2: Validation (ISO Steuerungen - Teil 2: Validierung (ISO 13849-2:2012)
13849-2:2012)
This European Standard was approved by CEN on 14 October 2012.

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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13849-2:2012: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC .4

Foreword
This document (EN ISO 13849-2:2012) has been prepared by Technical Committee ISO/TC 199 “Safety of
machinery” in collaboration with Technical Committee CEN/TC 114 “Safety of machinery” the secretariat of
which is held by DIN.
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 2013, and conflicting national standards shall be withdrawn at the
latest by April 2013.
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 13849-2:2008.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document.
According to the CEN/CENELEC Internal Regulations, the national standards organisations 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 13849-2:2012 has been approved by CEN as a EN ISO 13849-2:2012 without any
modification.
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide a means of conforming to Essential Requirements of the
New Approach Directive Machinery, 2006/42/EC.
Once this standard is cited in the Official Journal of the European Union under that Directive and has been
implemented as a national standard in at least one Member State, compliance with the normative clauses of
this standard confers, within the limits of the scope of this standard, a presumption of conformity with the
relevant Essential Requirements 1.2.1 of that Directive and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard.
INTERNATIONAL ISO
STANDARD 13849-2
Second edition
2012-10-15
Safety of machinery — Safety-related
parts of control systems —
Part 2:
Validation
Sécurité des machines — Parties des systèmes de commande relatives
à la sécurité —
Partie 2: Validation
Reference number
ISO 13849-2:2012(E)
©
ISO 2012
ISO 13849-2:2012(E)
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any
means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the
address below or ISO’s member body in the country of the requester.
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ii © ISO 2012 – All rights reserved

ISO 13849-2:2012(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Validation process . 1
4.1 Validation principles . 1
4.2 Validation plan . 3
4.3 Generic fault lists . . 4
4.4 Specific fault lists. 4
4.5 Information for validation . 4
4.6 Validation record . 6
5 Validation by analysis . 6
5.1 General . 6
5.2 Analysis techniques . 7
6 Validation by testing . 7
6.1 General . 7
6.2 Measurement accuracy . 8
6.3 More stringent requirements . 8
6.4 Number of test samples . 8
7 Validation of safety requirements specification for safety functions .9
8 Validation of safety functions . 9
9 Validation of performance levels and categories .10
9.1 Analysis and testing .10
9.2 Validation of category specifications .10
9.3 Validation of MTTF , DC and CCF .12
d avg
9.4 Validation of measures against systematic failures related to performance level and
category of SRP/CS .13
9.5 Validation of safety-related software .13
9.6 Validation and verification of performance level .14
9.7 Validation of combination of safety-related parts .14
10 Validation of environmental requirements .15
11 Validation of maintenance requirements .15
12 Validation of technical documentation and information for use .16
Annex A (informative) Validation tools for mechanical systems .17
Annex B (informative) Validation tools for pneumatic systems .21
Annex C (informative) Validation tools for hydraulic systems .31
Annex D (informative) Validation tools for electrical systems .40
Annex E (informative) Example of validation of fault behaviour and diagnostic means .53
Bibliography .
...