SIST EN ISO 13849-1:2016

Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2015)

This part of ISO 13849 provides safety requirements and guidance on the principles for the design
and integration of safety-related parts of control systems (SRP/CS), including the design of software.
For these parts of SRP/CS, it specifies characteristics that include the performance level required for
carrying out safety functions. It applies to SRP/CS for high demand and continuous mode, regardless of
the type of technology and energy used (electrical, hydraulic, pneumatic, mechanical, etc.), for all kinds
of machinery.
It does not specify the safety functions or performance levels that are to be used in a particular case.
This part of ISO 13849 provides specific requirements for SRP/CS using programmable electronic
system(s).
It does not give specific requirements for the design of products which are parts of SRP/CS. Nevertheless,
the principles given, such as categories or performance levels, can be used.
NOTE 1 Examples of products which are parts of SRP/CS: relays, solenoid valves, position switches, PLCs,
motor control units, two-hand control devices, pressure sensitive equipment. For the design of such products,
it is important to refer to the specifically applicable International Standards, e.g. ISO 13851, ISO 13856‑1 and
ISO 13856‑2.
NOTE 2 For the definition of required performance level, see 3.1.24.
NOTE 3 The requirements provided in this part of ISO 13849 for programmable electronic systems are
compatible with the methodology for the design and development of safety-related electrical, electronic and
programmable electronic control systems for machinery given in IEC 62061.
NOTE 4 For safety-related embedded software for components with PLr = e, see IEC 61508–3:1998, Clause 7.

Sicherheit von Maschinen - Sicherheitsbezogene Teile von Steuerungen - Teil 1: Allgemeine Gestaltungsleitsätze (ISO 13849-1:2015)

Dieser Teil der ISO 13849 stellt Sicherheitsanforderungen und einen Leitfaden für die Prinzipien der Gestaltung und Integration sicherheitsbezogener Teile von Steuerungen (SRP/CS) bereit, einschließlich der Entwicklung von Software. Für diese Teile der SRP/CS werden Eigenschaften, einschließlich des Performance Levels, festgelegt, die zur Ausführung der entsprechenden Sicherheitsfunktionen erforderlich sind. Er ist anzuwenden auf SRP/CS aller Arten von Maschinen mit Betriebsart mit hoher Anforderungsrate und Betriebsart mit kontinuierlicher Anforderung, ungeachtet der verwendeten Technologie und Energie (elektrisch, hydraulisch, pneumatisch, mechanisch, usw.).
Er legt nicht fest, welche Sicherheitsfunktionen oder Performance Level für einen speziellen Fall verwendet werden.
Dieser Teil der ISO 13849 stellt spezielle Anforderungen für SRP/CS mit programmierbar elektronischem(n) System(en) bereit.
Er stellt keine speziellen Anforderungen an den Entwurf von Produkten, die Teile von SRP/CS sind. Trotzdem können die angegebenen Prinzipien, wie Kategorien oder Performance Level, verwendet werden.
ANMERKUNG 1 Beispiele von Produkten, die Teile von SRP/CS sind: Relais, Magnetventile, Positionsschalter, PLC(en), Antriebssteuerungen, Zweihandschaltungen, druckempfindliche Schutzeinrichtungen. Für den Entwurf solcher Produkte ist es wichtig, sich auf spezielle anwendbare Internationale Normen zu beziehen, z. B. ISO 13851, ISO 13856-1 und ISO 13856-2.
ANMERKUNG 2 Für die Definition des erforderlichen Performance Levels, siehe 3.1.24.
ANMERKUNG 3 Die in diesem Teil der ISO 13849 bereitgestellten Anforderungen für programmierbare elektronische Systeme sind kompatibel mit der Methodik für Gestaltung und Entwicklung sicherheitsbezogener elektrischer, elektronischer und programmierbarer elektronischer Steuerungen für Maschinen in der IEC 62061.
ANMERKUNG 4 Für sicherheitsbezogene Embedded-Software in Komponenten mit PLr = e, siehe IEC 61508-3:1998, Abschnitt 7.

Sécurité des machines - Parties des systèmes de commande relatives à la sécurité - Partie 1: Principes généraux de conception (ISO 13849-1:2015)

La présente partie de l'ISO 13849 fournit des exigences de sécurité et des conseils relatifs aux principes de conception et d'intégration des parties des systèmes de commande relatives à la sécurité (SRP/CS) incluant la conception du logiciel. Pour ces parties, elle spécifie les caractéristiques, incluant le niveau de performance requis, pour réaliser ces fonctions de sécurité. Elle s'applique aux SRP/CS pour le mode de demande élevée et le mode continu, indépendamment du type de technologie et d'énergie utilisé (électrique, hydraulique, pneumatique mécanique, etc.), quelques soient les machines.
Elle ne spécifie pas quelles fonctions de sécurité et quels niveaux de performance doivent être utilisés dans un cas particulier.
La présente partie de l'ISO 13849 fournit des exigences spécifiques pour les SRP/CS utilisant un (des) système(s) électronique(s) programmable(s).
Elle ne donne pas d'exigences spécifiques pour la conception de composants intégrés dans les SRP/CS. Néanmoins, les principes donnés, tels que les catégories ou les niveaux de performance, peuvent être utilisés.
NOTE 1       Exemples de composants intégrés dans les SRP/CS: relais, distributeur solénoïde, interrupteur de position, PLC, unité de commande de moteurs, dispositifs de commande bimanuelle, dispositifs de protection électrosensibles. Pour la conception de tels composants, il est recommandé de se référer aux normes spécifiques, par exemple l'ISO 13851, l'ISO 13856‑1 et l'ISO 13856‑2.
NOTE 2       Pour la définition du niveau de performance requis, voir 3.1.24.
NOTE 3       Les exigences fournies dans la présente partie de l'ISO 13849 pour les systèmes électroniques programmables sont compatibles avec la méthodologie pour la conception et le développement des systèmes, pour les machines, de commande électriques, électroniques et électroniques programmables relatifs à la sécurité donnés dans la IEC 61061.
NOTE 4       Pour le logiciel embarqué relatif à la sécurité pour des composants de PLr =  e, voir la IEC 61508-3:1998, Article 7.

Varnost strojev - Z varnostjo povezani deli krmilnih sistemov - 1. del: Splošna načela za načrtovanje (ISO 13849-1:2015)

Ta del standarda ISO 13849 zagotavlja varnostne zahteve ter smernice za načela načrtovanja in integracije z varnostjo povezanih delov krmilnih sistemov (SRP/CS), vključno z načrtovanjem programske opreme. Za te dele SRP/CS standard določa karakteristike, ki vključujejo zahtevano raven delovanja za izvajanje varnostnih funkcij. Velja za SRP/CS za visoke zahteve in neprekinjen način, ne glede na
vrsto uporabljene tehnologije in energije (električno, hidravlično, pnevmatično, mehansko itd.), za vse vrste
strojev. Ne določa varnostnih funkcij ali ravni delovanja, ki jih je treba uporabiti v določenem primeru. Ta del standarda ISO 13849 zagotavlja posebne zahteve za SRP/CS, ki uporabljajo programirljiv elektronski sistem ali sisteme.
Ne podaja posebnih zahtev za načrtovanje izdelkov, ki so del SRP/CS. Vseeno je mogoče uporabiti podana načela, npr. kategorije ali ravni delovanja.
OPOMBA 1: Primeri izdelkov, ki so del SRP/CS: releji, elektromagnetni ventili, položajna stikala, programirljivi krmilniki (PLC), krmilne naprave za upravljanje z dvema rokama ter tlačna oprema. Za načrtovanje takšnih izdelkov je pomembno upoštevati zlasti veljavne mednarodne standarde, npr. ISO 13851, ISO 13856 1 in ISO 13856 2.
OPOMBA 2: Za opredelitev zahtevane ravni delovanja glejte 3.1.24.
OPOMBA 3: Zahteve, navedene v tem delu standarda ISO 13849 za programirljive elektronske sisteme, so
združljive z metodologijo za načrtovanje in razvoj z varnostjo povezanih električnih, elektronskih in programirljivih elektronskih krmilnih sistemov za stroje, podane v standardu IEC 62061.
OPOMBA 4: Za z varnostjo povezano programsko opremo za komponente s PLr = e glejte standard IEC 61508–3:1998, klavzulo 7.

General Information

• Status: Withdrawn
• Public Enquiry End Date: 30-Nov-2013
• Publication Date: 27-Jan-2016
• Withdrawal Date: 19-Oct-2023
• ICS: 13.110 - Safety of machinery
• Technical Committee: VSN - Safety of machinery
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 19-Oct-2023
• Due Date: 11-Nov-2023
• Completion Date: 20-Oct-2023
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN ISO 13849-1:2015 - Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2015)

Relations

• Replaces: SIST EN ISO 13849-1:2008 - Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2006)
• Effective Date: 08-Jun-2022
• Replaces: SIST EN ISO 13849-1:2008/AC:2009 - Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2006/Cor 1:2009)
• Effective Date: 01-Mar-2016
• Replaces: SIST EN ISO 13849-1:2008 - Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2006)
• Effective Date: 01-Mar-2016
• Revised: SIST EN ISO 13849-1:2023 - Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2023)
• Effective Date: 03-May-2017

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 13849-1:2016
01-marec-2016
1DGRPHãþD
SIST EN ISO 13849-1:2008
SIST EN ISO 13849-1:2008/AC:2009
9DUQRVWVWURMHY=YDUQRVWMRSRYH]DQLGHOLNUPLOQLKVLVWHPRYGHO6SORãQD
QDþHOD]DQDþUWRYDQMH,62
Safety of machinery - Safety-related parts of control systems - Part 1: General principles
for design (ISO 13849-1:2015)
Sicherheit von Maschinen - Sicherheitsbezogene Teile von Steuerungen - Teil 1:
Allgemeine Gestaltungsleitsätze (ISO 13849-1:2015)
Sécurité des machines - Parties des systèmes de commande relatives à la sécurité -
Partie 1: Principes généraux de conception (ISO 13849-1:2015)
Ta slovenski standard je istoveten z: EN ISO 13849-1:2015
ICS:
13.110 Varnost strojev Safety of machinery
SIST EN ISO 13849-1:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 13849-1:2016

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SIST EN ISO 13849-1:2016


EN ISO 13849-1
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2015
EUROPÄISCHE NORM
ICS 13.110 Supersedes EN ISO 13849-1:2008
English Version

Safety of machinery - Safety-related parts of control
systems - Part 1: General principles for design (ISO 13849-
1:2015)
Sécurité des machines - Parties des systèmes de Sicherheit von Maschinen - Sicherheitsbezogene Teile
commande relatives à la sécurité - Partie 1: Principes von Steuerungen - Teil 1: Allgemeine
généraux de conception (ISO 13849-1:2015) Gestaltungsleitsätze (ISO 13849-1:2015)
This European Standard was approved by CEN on 20 June 2015.

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
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13849-1:2015 E
worldwide for CEN national Members.

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SIST EN ISO 13849-1:2016
EN ISO 13849-1:2015 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC . 4

2

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SIST EN ISO 13849-1:2016
EN ISO 13849-1:2015 (E)
European foreword
This document (EN ISO 13849-1:2015) 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 June 2016, and conflicting national standards shall be
withdrawn at the latest by June 2016.
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 13849-1:2008.
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(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
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, Cypru
...

b
SLOVENSKI
SIST EN ISO 13849-1
STANDARD  marec 2016
Varnost strojev – Z varnostjo povezani deli krmilnih sistemov –
1. del: Splošna načela za načrtovanje (ISO 13849-1:2015)
Safety of machinery – Safety-related parts of control systems –
Part 1: General principles for design (ISO 13849-1:2015)
Sécurité des machines – Parties des systèmes de commande relatives à la
sécurité – Partie 1: Principes généraux de conception (ISO 13849-1:2015)
Sicherheit von Maschinen – Sicherheitsbezogene Teile von Steuerungen –
Teil 1: Allgemeine Gestaltungsleitsätze (ISO 13849-1:2015)
Referenčna oznaka
ICS 13.110 SIST EN ISO 13849-1:2016 (sl)
Nadaljevanje na straneh II do III in od 1 do 98
© 2020-07. Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno.

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SIST EN ISO 13849-1 : 2016
NACIONALNI UVOD
Standard SIST EN ISO 13849-1 (sl), Varnost strojev – Z varnostjo povezani deli krmilnih sistemov –
1. del: Splošna načela za načrtovanje (ISO 13849-1:2015), 2016, ima status slovenskega standarda in
je istoveten evropskemu standardu EN ISO 13849-1 (en), Safety of machinery – Safety-related parts of
control systems – Part 1: General principles for design (ISO 13849-1:2015), 2015.
NACIONALNI PREDGOVOR
Evropski standard EN ISO 13849-1:2015 je pripravil tehnični odbor Mednarodne organizacije za
standardizacijo ISO/TC 199 Varnost strojev v sodelovanju s tehničnim odborom Evropskega komiteja
za standardizacijo CEN/TC 114 Varnost strojev, katerega tajništvo je v pristojnosti DIN. Slovenski
standard SIST EN ISO 13849-1:2016 je prevod evropskega standarda EN ISO 13849-1:2015. V
primeru spora glede besedila slovenskega prevoda v tem standardu je odločilen izvirni evropski
standard v angleškem jeziku. Slovensko izdajo standarda je odobril tehnični odbor SIST/TC VSN
Varnost strojev 16. aprila 2016.
ZVEZA Z NACIONALNIMI STANDARDI
S privzemom tega evropskega standarda veljajo za omejeni namen referenčnih standardov vsi
standardi, navedeni v izvirniku, razen tistih, ki so že sprejeti v nacionalno standardizacijo:
SIST EN ISO 12100:2011 Varnost strojev – Splošna načela načrtovanja – Ocena tveganja in
zmanjšanje tveganja (ISO 12100:2010)
SIST EN ISO 13849-2:2013 Varnost strojev – Z varnostjo povezani deli krmilnih sistemov – 2. del:
Potrjevanje (ISO 13849-2:2012)
SIST IEC 60050-191:2017 Mednarodni elektrotehniški slovar – 191. del: Zagotovljivost (vključuje
IEC 60050-191:1990, IEC 60050-191-am1:1999 in IEC 60050-191-
am2:2002:1999)
SIST EN 61508-3:2011 Funkcijska varnost električnih/elektronskih/elektronsko programirljivih
varnostnih sistemov – 3. del: Programske zahteve (IEC 61508-
3:2010)
SIST EN 61508-4:2011 Funkcijska varnost električnih/elektronskih/elektronsko programirljivih
varnostnih sistemov – 4. del: Definicije in kratice (IEC 61508-4:2010)
SIST-TP CLC/TR 62061-1:2010 Navodilo za uporabo ISO 13849-1 in IEC 62061 pri načrtovanju z
varnostjo povezanih nadzornih sistemov za strojno opremo (IEC/TR
62061-1:2010)
OSNOVA ZA IZDAJO STANDARDA
– privzem standarda SIST EN ISO 13849-1:2015
PREDHODNA IZDAJA
– SIST EN ISO 13849-1:2008, Varnost strojev – Z varnostjo povezani deli krmilnih sistemov – 1. del:
Splošna načela za načrtovanje (ISO 13849-1:2006)
– SIST EN ISO 13849-1:2008/AC:2009, Varnost strojev – Z varnostjo povezani deli krmilnih sistemov
– 1. del: Splošna načela za načrtovanje (ISO 13849-1:2006/Cor 1:2009)
II

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SIST EN ISO 13849-1 : 2016
OPOMBE
– Povsod, kjer se v besedilu standarda uporablja izraz “evropski standard”, v SIST EN ISO 13849-
1:2016 to pomeni “slovenski standard”.
– Nacionalni uvod in nacionalni predgovor nista sestavni del standarda.
– Ta nacionalni dokument je enakovreden EN ISO 13849-1:2015 in je objavljen z dovoljenjem
CEN-CENELEC
Upravni center
Avenue Marnix 17
B-1000 Bruselj
This national document is identical with EN ISO 13849-1:2015 and is published with the permission
of
CEN-CENELEC
Management Centre
Avenue Marnix 17
B-1000 Brussels
III

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SIST EN ISO 13849-1 : 2016
(prazna stran)
IV

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EVROPSKI STANDARD EN ISO 13849-1
EUROPEAN STANDARD
NORME EUROPÉENNE
 december 2015
EUROPÄISCHE NORM
ICS 13.110 Nadomešča EN ISO 13849-1:2008
Slovenska izdaja
Varnost strojev – Z varnostjo povezani deli krmilnih sistemov –
1. del: Splošna načela za načrtovanje (ISO 13849-1:2015)
Safety of machinery – Sécurité des machines – Bauteile – Sicherheit von
Safety-related parts of control Parties des systèmes de Maschinen – Sicherheits-
systems – Part 1: General commande relatives à la bezogene Teile von
principles for design sécurité – Partie 1: Principes Steuerungen – Teil 1:
(ISO 13849-1:2015) généraux de conception Allgemeine Gestaltungsleitsätze
(ISO 13849-1:2015) (ISO 13849-1:201
...

SLOVENSKI STANDARD
SIST EN ISO 13849-1:2008/oprA1:2013
01-november-2013
9DUQRVWVWURMHY=YDUQRVWMRSRYH]DQLGHOLNUPLOQLKVLVWHPRYGHO6SORãQD
QDþHOD]DQDþUWRYDQMH,62'$0
Safety of machinery - Safety-related parts of control systems - Part 1: General principles
for design (ISO 13849-1:2006/DAM 1:2013)
Sicherheit von Maschinen - Sicherheitsbezogene Teile von Steuerungen - Teil 1:
Allgemeine Gestaltungsleitsätze (ISO 13849-1:2006/DAM 1:2013)
Sécurité des machines - Parties des systèmes de commande relatives à la sécurité -
Partie 1: Principes généraux de conception (ISO 13849-1:2006/DAM 1:2013)
Ta slovenski standard je istoveten z: EN ISO 13849-1:2008/prA1
ICS:
13.110 Varnost strojev Safety of machinery
SIST EN ISO 13849-1:2008/oprA1:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 13849-1:2008/oprA1:2013

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SIST EN ISO 13849-1:2008/oprA1:2013

DRAFT AMENDMENT ISO 13849-1:2006/DAM 1
ISO/TC 199 Secretariat: DIN
Voting begins on Voting terminates on

2013-08-29 2014-01-29
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION    МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ    ORGANISATION INTERNATIONALE DE NORMALISATION


Safety of machinery — Safety-related parts of control
systems —
Part 1:
General principles for design
AMENDMENT 1
Sécurité des machines — Parties des systèmes de commande relatives à la sécurité —
Partie 1: Principes généraux de conception
AMENDEMENT 1
ICS 13.110






ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.

To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.

THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME
STANDARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©  International Organization for Standardization, 2013

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SIST EN ISO 13849-1:2008/oprA1:2013
ISO 13849-1:2013/DAM 1

COPYRIGHT PROTECTED DOCUMENT


©  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
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Permission can be requested from either ISO at the address below or ISO’s member body in the country of the requester.
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Published in Switzerland

ii © ISO 2013 – All rights reserved

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SIST EN ISO 13849-1:2008/oprA1:2013
ISO 13849-1:2006/DAM 1
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task
...