ISO 11737-1:2018/Amd 1:2021
(Amendment)Sterilization of health care products — Microbiological methods — Part 1: Determination of a population of microorganisms on products — Amendment 1
Sterilization of health care products — Microbiological methods — Part 1: Determination of a population of microorganisms on products — Amendment 1
Stérilisation des produits de santé — Méthodes microbiologiques — Partie 1: Détermination d'une population de microorganismes sur des produits — Amendement 1
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INTERNATIONAL ISO
STANDARD 11737-1
Third edition
2018-01
AMENDMENT 1
2021-05
Sterilization of health care products —
Microbiological methods —
Part 1:
Determination of a population of
microorganisms on products
AMENDMENT 1
Stérilisation des produits de santé — Méthodes microbiologiques —
Partie 1: Détermination d'une population de microorganismes sur des
produits
AMENDEMENT 1
Reference number
ISO 11737-1:2018/Amd.1:2021(E)
©
ISO 2021
---------------------- Page: 1 ----------------------
ISO 11737-1:2018/Amd.1:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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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
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Published in Switzerland
ii © ISO 2021 – All rights reserved
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ISO 11737-1:2018/Amd.1:2021(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 (see 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 (see 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 of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 198, Sterilization of health care produ
...
NORME ISO
INTERNATIONALE 11737-1
Troisième édition
2018-01
AMENDEMENT 1
2021-05
Stérilisation des produits de santé —
Méthodes microbiologiques —
Partie 1:
Détermination d'une population de
microorganismes sur des produits
AMENDEMENT 1
Sterilization of health care products — Microbiological methods —
Part 1: Determination of a population of microorganisms on products
AMENDMENT 1
Numéro de référence
ISO 11737-1:2018/Amd.1:2021(F)
©
ISO 2021
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ISO 11737-1:2018/Amd.1:2021(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2021
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
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être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
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Tél.: +41 22 749 01 11
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Web: www.iso.org
Publié en Suisse
ii © ISO 2021 – Tous droits réservés
---------------------- Page: 2 ----------------------
ISO 11737-1:2018/Amd.1:2021(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
L'ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a été
rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www
.iso .org/ directives).
L'attention est appelée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant
les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de
l'élaboration du document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de
brevets reçues par l'ISO (voir www .iso .org/ brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l'intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion
de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir le lien suivant: www .iso .org/ iso/ avant -propos .html.
Le présent document a été élaboré par le comité technique ISO/TC 198, Stérilisation des pr
...
FINAL
ISO
AMENDMENT
DRAFT
11737-1:2018
FDAM 1
ISO/TC 198
Sterilization of health care products —
Secretariat: ANSI
Microbiological methods —
Voting begins on:
2020-07-02
Part 1:
Voting terminates on:
Determination of a population of
2020-08-27
microorganisms on products
AMENDMENT 1
Stérilisation des produits de santé — Méthodes microbiologiques —
Partie 1: Détermination d'une population de microorganismes sur des
produits
AMENDEMENT 1
ISO/CEN PARALLEL PROCESSING
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 SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO 11737-1:2018/FDAM 1:2020(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2020
---------------------- Page: 1 ----------------------
ISO 11737-1:2018/FDAM 1:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 11737-1:2018/FDAM 1:2020(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 (see 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 (see 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 of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 198, Sterilization of health care products.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
© ISO 2020 – All rights reserved iii
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ISO 11737-1:2018/FDAM 1:2020(E)
Sterilization of health care products — Microbiological
methods —
Part 1:
Determination of a population of microorganisms on
products
AMENDMENT 1
Clause 4
Replace with the following:
4 General
4.1 The development, validation and routine control of a sterilization process is a critical element
in product realization of health care product. To ensure the consistent implementation of the
requirements specified in this document, the necessary processes need to be established, implemented
and maintained. Processes of particular importance in relation to the development, validation and
routine control of a sterilization process include but are not limited to:
— control of documentation, including records,
— assignment of management responsibility,
— provision of adequate resources, including competent human resources and infrastructure,
— control of product provided by external parties,
— identification and traceability of product throughout the process, and
— control of non-conforming product.
NOTE ISO 13485 covers all stages of the lifecycle of medical devices in the context of quality management
systems for regulatory purposes. National and/or regional regulatory requirements for the provision of health
care product can require the implementation of a full quality management system and the assessment of that
system by a recognized conformity assessment body.
4.2 A process shall be specified for the calibration of all equipment, including instrumentation for test
purposes, used in meeting the requirements of this document.
B.3.3.4
B.3.3.4 MPN methods are simple to perform, and the statistical basis for the method makes it
more appropriate for general assessment rather than accurate determinations. The MPN method for
[27]
10 samples of a single dilution is shown in Table 5 of the FDA BAM . This single dilution method
does not incorporate additional dilutions that could provide further information about the number of
microorganisms producing a positive sample. Alternatively, Formula (B.1) can be used for individual
© ISO 2020 – All rights reserved 1
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ISO 11737-1:2018/FDAM 1:2020(E)
samples or SIPs to determine a most probable number. Formula (B.1) is a simplified version of the
[42]
original formula from Cochran .
n 1
MPNs()dSor IP =ln (B.1)
sSIP
where
sd is for single dilution;
ln represents natural log;
n is the total number of samples tested;
s is the number of samples negative for growth.
Bibliography
Add the following:
Cochran W. Estimation of Bacterial Densities by Means of the Most Probable Number, Biometrics. 6:105-
116, 1950
2 © ISO 2020 – All rights reserved
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ISO 11737-1:2018/FDAM 1:2020(E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 90/385/EEC on active implantable
medical devices [OJ L 189] aimed to be covered
This European standard has been prepared under a Commission’s standardisation request M/023 to
provide one voluntary means of conforming to essential requirements of Council Directive 90/385/EEC
of 20 June 1990 on the approximation of the laws of the Member States relating to active implantable
medical devices [OJ L 189].
Once this standard is cited in the Official Journal of the European Union under that Directive, compliance
with the normative clauses of this standard given in Table ZA.1 confers, within the limits of the scope
of this standard, a presumption of conformity with the corresponding Essential Requirements of that
Directive and associated EFTA regulations.
NOTE 1 Where a reference from a clause of this standard to the risk management process is made, the risk
management process needs to be in compliance with 90/385/EEC, as amended by 2007/47/EC. This means that
risks have to be reduced ‘as far as possible’, ‘to a minimum’, ‘to the lowest possible level’, ‘minimized’ or ‘removed’,
according to the wording of the corresponding essential requirement.
NOTE 2 The manufacturer’s policy for determining acceptable risk must be in compliance with essential
requirements 1, 4, 5, 8, 9 and 10of the Directive.
NOTE 3 This Annex ZA is based on normative references according to the table of references in the European
foreword, replacing the references in the core text.
NOTE 4 When an Essential Requirement does not appear in Table ZA.1, it means that it is not addressed by this
European Standard.
© ISO 2020 – All rights reserved 3
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ISO 11737-1:2018/FDAM 1:2020(E)
Table ZA.1 — Correspondence between this European Standard and Annex I
of Directive 90/385/EEC [OJ L 189]
Essential Requirements (ERs) Clauses of this EN Qualifying remarks/Notes
of Directive 90/385/EEC
7 4, 5, 6, 7, 8, 9 This standard addresses the deter-
mination of the population of micro-
organisms on or in a medical device
as part of the validation and routine
control of a sterilization process.
This relevant Essential Require-
ment is partly addressed in this
European Standard and only in
conjunction with the applicable
standard for validation and routine
control of the sterilization process
being employed. Design and pack-
aging for maintenance of sterility
during transportation and storage
are not covered. Aspects of manu-
facture other than those related to
sterilization are not covered.
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users
of this standard should consult frequently the latest list published in the Official Journal of the
European Union.
WARNING 2 — Other Union legislation may be applicable to the products falling within the scope
of this standard.
4 © ISO 2020 – All rights reserved
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ISO 11737-1:2018/FDAM 1:2020(E)
Annex ZB
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 93/42/EEC on medical devices [OJ L
169] aimed to be covered
This European Standard has been prepared under a Commission's standardization request M/023 to
provide one voluntary means of conforming to essential requirements of Council Directive 93/42/EEC
of 14 June 1993 concerning medical devices [OJ L 169].
Once this standard is cited in the Official Journal of the European Union under that Directive, compliance
with the normative clauses of this standard given in Table ZB.1 confers, within the limits of the scope
of this standard, a presumption of conformity with the corresponding Essential Requirements of that
Directive and associated EFTA regulations.
NOTE 1 Where a reference from a clause of this standard to the risk management process is made, the risk
management process needs to be in compliance with 93/42/EEC, as amended by 2007/47/EC. This means that
risks have to be reduced ‘as far as possible’, ‘to a minimum’, ‘to the lowest possible level’, ‘minimized’ or ‘removed’,
according to the wording of the corresponding essential requirement.
NOTE 2 The manufacturer’s policy for determining acceptable risk must be in compliance with essential
requirements 1, 2, 5, 6, 7, 8, 9, 11 and 12 of the Directive.
NOTE 3 This Annex ZB is based on normative references according to the table of references in the European
foreword, replacing the references in the core text.
NOTE 4 When an Essential Requirement does not appear in Table ZB.1, it means that it is not addressed by this
European Standard.
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ISO 11737-1:2018/FDAM 1:2020(E)
Table ZB.1 — Correspondence between this European Standard and Annex I
of Directive 93/42/EEC [OJ L 169]
Essential Requirements (ERs) Clauses of this EN Qualifying remarks/Notes
of Directive 93/42/EEC
8.3 4, 5, 6, 7, 8, 9 This standard addresses the deter-
mination of the population of micro-
organisms on or in a medical device
as part of the validation and routine
control of a sterilization process.
This relevant Essential Require-
ment is partly addressed in this
European Standard and only in
conjunction with the applicable
standard for validation and routine
control of the sterilization process
being employed. Design and pack-
aging for maintenance of sterility
during transportation and storage
are not covered. Aspects of manu-
facture other than those related to
sterilization are not covered.
8.4 4, 5, 6, 7, 8, 9 This relevant Essential Require-
ment is only partly addressed in
this European Standard. Aspects
of manufacture other than those
related to determination of the
population of microorganisms are
not covered.
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained
...
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