Sterilization of health care products - Low temperature steam and formaldehyde - Requirements for development, validation and routine control of a sterilization process for medical devices (ISO 25424:2018)

1.1    Inclusions
1.1.1    This document specifies requirements for the development, validation and routine control of a low temperature steam and formaldehyde (LTSF) sterilization process for medical devices using a mixture of low temperature steam and formaldehyde as sterilizing agent and which operates below ambient pressure.
NOTE       Although the scope of this document is limited to medical devices, it specifies requirements and provides guidance that can be applicable to other products and equipment.
1.1.2    This document is intended to be applied by process developers, manufacturers of sterilization equipment, manufacturers of medical devices to be sterilized and the organizations with responsibility for sterilizing medical devices (see ISO 14937:2009, Table E.1).
1.2    Exclusions
1.2.1    This document does not specify requirements for the development, validation and routine control of a process for inactivating the causative agents of spongiform encephalopathies such as scrapie, bovine spongiform encephalopathy and Creutzfeldt-Jakob disease. Specific recommendations have been produced in particular countries for the processing of materials potentially contaminated with these agents.
NOTE       See ISO 22442‑1, ISO 22442‑2 and ISO 22442‑3.
1.2.2    This document does not specify requirements for designating a medical device as "STERILE". Such requirements are given in EN 556‑1.
1.2.3    This document does not specify a quality management system for the control of all stages of production of medical devices.
NOTE       It is not a requirement of this document to have a complete quality management system during manufacture or reprocessing, but those elements of such a system that are required are normatively referenced at appropriate places in the text. Attention is drawn to the standards for quality management systems (see ISO 13485) that control all stages of production or reprocessing of medical devices including the sterilization process. Further guidance is given in E.4 of ISO 14937:2009.
1.2.4    This document does not specify requirements for occupational safety associated with the design and operation of LTSF sterilization facilities.
NOTE 1    Safety requirements for sterilizers are specified in IEC 61010‑2‑040.
NOTE 2    Attention is also drawn to the existence in some countries of regulations stipulating safety requirements.
1.2.5    This document does not cover analytical methods for determining levels or residues of formaldehyde and/or its reaction products.
NOTE 1    Attention is drawn to EN 14180.
NOTE 2    Attention is drawn to the possible existence in some countries of statutory regulations specifying limits for the level of formaldehyde residues on medical devices and products.
1.2.6    This document does not cover preparatory measures that might be necessary before sterilization such as cleaning, disinfection and packing.
NOTE       For reprocessable medical devices, the manufacturer(s) of these devices can supply information on the preparatory measures (see ISO 17664).

Sterilisation von Produkten für die Gesundheitsfürsorge - Niedertemperatur-Dampf-Formaldehyd - Anforderungen an die Entwicklung, Validierung und Routineüberwachung von Sterilisationsverfahren für Medizinprodukte (ISO 25424:2018)

1.1   In den Anwendungsbereich einbezogen
1.1.1   Dieses Dokument legt Anforderungen für die Entwicklung, Validierung und Routineüberwachung eines Sterilisationsverfahrens mit Niedertemperatur Dampf Formaldehyd (NTDF) für Medizinprodukte fest, bei dem ein Gemisch von Niedertemperatur Dampf Formaldehyd als sterilisierendes Agens verwendet wird, und das unterhalb des Umgebungsdrucks betrieben wird.
ANMERKUNG   Obgleich der Anwendungsbereich dieses Dokuments auf Medizinprodukte begrenzt ist, legt es Anforderungen fest und liefert Anleitungen, die auch für andere Produkte und Geräte gelten können.
1.1.2   Dieses Dokument ist dazu vorgesehen, von Verfahrensentwicklern, Herstellern von Sterilisations-ausrüstungen, Herstellern zu sterilisierender Medizinprodukte und von Organisationen angewendet zu werden, die Verantwortung für die Sterilisation von Medizinprodukten haben (siehe ISO 14937:2009, Tabelle E.1).
1.2   Vom Anwendungsbereich ausgeschlossen
1.2.1   Dieses Dokument legt keine Anforderungen für die Entwicklung, Validierung und Routinekontrolle für ein Verfahren zur Inaktivierung von Agenzien fest, welche spongiforme Enzephalopathien wie Scrapie, bovine spongiforme Enzephalopathie und Creutzfeldt Jakob Krankheit verursachen. In bestimmten Ländern sind spezifische Empfehlungen für die Behandlung von möglicherweise mit diesen Erregern kontaminierten Materialien erarbeitet worden.
ANMERKUNG   Siehe ISO 22442 1, ISO 22442 2 und ISO 22442 3.
1.2.2   Dieses Dokument legt keine Anforderungen zur Kennzeichnung eines Medizinprodukts als „STERIL“ fest. Solche Anforderungen sind in EN 556 1 angegeben.
1.2.3   Dieses Dokument legt kein Qualitätsmanagementsystem für die Überwachung aller Stufen der Herstellung von Medizinprodukten fest.
ANMERKUNG   Es ist keine Anforderung dieses Dokuments, dass ein vollständiges Qualitätsmanagementsystem während der Herstellung oder Wiederaufbereitung vorhanden ist, aber auf jene Elemente eines solchen Systems, die gefordert werden, erfolgen an den entsprechenden Stellen im Text normative Verweisungen. Zu beachten sind die Normen für Qualitätsmanagementsysteme (siehe ISO 13485), die alle Stufen der Herstellung oder Wiederaufbereitung von Medizinprodukten einschließlich des Sterilisationsverfahrens lenken. Eine weitere Anleitung wird in ISO 14937:2009, E.4, gegeben.
1.2.4   Dieses Dokument legt keine Anforderungen an den Arbeitsschutz fest, die mit Design und Betrieb von NTDF Sterilisationsanlagen zusammenhängen.
ANMERKUNG 1   Sicherheitsanforderungen für Sterilisatoren sind in IEC 61010 2 040 festgelegt.
ANMERKUNG 2   Es wird auch darauf hingewiesen, dass in einigen Ländern Bestimmungen bestehen, in denen Sicherheitsanforderungen festgelegt sind.
1.2.5   Dieses Dokument behandelt keine Analyseverfahren zur Bestimmung von Konzentrationen oder Rückständen von Formaldehyd und/oder dessen Reaktionsprodukten.
ANMERKUNG 1   Es wird auf EN 14180 hingewiesen.
ANMERKUNG 2   Es wird darauf hingewiesen, dass in einigen Ländern möglicherweise Bestimmungen bestehen, in denen Grenzwerte für die Konzentration von Formaldehydrückständen auf Medizinprodukten und Produkten festgelegt sind.

Stérilisation des produits de santé - Formaldéhyde et vapeur à faible température - Exigences pour le développement, la validation et le contrôle de routine d'un procédé de stérilisation pour dispositifs médicaux (ISO 25424:2018)

1.1  Inclusions  1.1.1    Le présent document spécifie les exigences relatives à la mise au point, à la validation et au contrôle de routine d'un procédé de stérilisation à la vapeur et au formaldéhyde à basse température (LTSF, «Low Temperature Steam and Formaldehyde») pour les dispositifs médicaux, utilisant comme agent stérilisant un mélange à basse température de vapeur d'eau et de formaldéhyde et fonctionnant à une pression inférieure à la pression atmosphérique.
NOTE       Bien que le domaine d'application du présent document se limite aux dispositifs médicaux, il spécifie les exigences et fournit des recommandations qui peuvent s'appliquer à d'autres produits et équipements.
1.1.2    Le présent document est destiné à être appliqué par les personnes chargées de la mise au point des procédés, les fabricants d'équipements de stérilisation, les fabricants de dispositifs médicaux destinés à être stérilisés et les organismes responsables de la stérilisation des dispositifs médicaux (voir l'ISO 14937:2009, Tableau E.1).
1.2  Exclusions  1.2.1    Le présent document ne spécifie pas les exigences relatives à la mise au point, à la validation et au contrôle de routine d'un procédé permettant d'inactiver les agents responsables des encéphalopathies spongiformes telles que la tremblante du mouton, l'encéphalopathie spongiforme bovine et la maladie de Creutzfeldt-Jakob. Des recommandations spécifiques ont été formulées dans certains pays pour le traitement des matériaux potentiellement contaminés par ces agents.
NOTE       Voir l'ISO 22442‑1, l'ISO 22442‑2 et l'ISO 22442‑3.
1.2.2    Le présent document ne spécifie pas d'exigence pour qualifier un dispositif médical de «STÉRILE». De telles exigences sont fournies dans l'EN 556‑1.
1.2.3    Le présent document ne spécifie pas de système de management de la qualité pour le contrôle de l'ensemble des étapes de production des dispositifs médicaux.
NOTE       Dans le présent document, il n'est pas exigé d'avoir un système complet de management de la qualité pour l'étape de fabrication ou de retraitement, mais les éléments exigés compris dans un système de ce type sont référencés de manière normative aux endroits appropriés dans le texte. L'attention est attirée sur les normes relatives aux systèmes de management de la qualité (voir l'ISO 13485) qui contrôlent toutes les étapes de production ou de retraitement des dispositifs médicaux, y compris le procédé de stérilisation. Des recommandations supplémentaires sont fournies dans l'ISO 14937:2009, E.4.
1.2.4    Le présent document ne spécifie aucune exigence en matière de sécurité au travail dans le cadre de la conception et du fonctionnement des installations de stérilisation LTSF.
NOTE 1    Les exigences de sécurité concernant les stérilisateurs sont spécifiées dans l'IEC 61010‑2‑040.
NOTE 2    L'attention est également attirée sur l'existence, dans certains pays, de réglementations établissant des exigences de sécurité.
1.2.5    Le présent document ne couvre pas les méthodes analytiques servant à déterminer les teneurs ou résidus de formaldéhyde et/ou de ses produits de réaction.
NOTE 1    L'attention est attirée sur l'EN 14180.
NOTE 2    L'attention est attirée sur la possibilité qu'il existe, dans certains pays, des réglementations statutaires établissant les limites de la teneur en résidus de formaldéhyde sur les produits et dispositifs médicaux.
1.2.6    Le présent document ne couvre pas les mesures préparatoires pouvant s'avérer nécessaires ava

Sterilizacija izdelkov za zdravstveno nego - Para z nizko temperaturo in s formaldehidom - Zahteve za razvoj, validacijo in rutinsko kontrolo sterilizacijskih postopkov za medicinske pripomočke (ISO 25424:2018)

Ta standard podaja zahteve za razvoj, validacijo in rutinsko kontrolo sterilizacijskih postopkov s paro nizke temperature in formaldehidom (LTSF) za medicinske pripomočke, pri katerih se kot sterilizacijsko sredstvo uporablja mešanica pare z nizko temperaturo in formaldehida ter ki potekajo pri nizkem zračnem tlaku. Ta dokument je namenjen uporabi s strani razvijalcev postopkov, proizvajalcev sterilizacijske opreme, proizvajalcev medicinskih pripomočkov, ki jih je treba sterilizirati, in organizacij, ki so odgovorne za sterilizacijo medicinskih pripomočkov (glej preglednico E.1 standarda ISO 14937:2009).

General Information

Status
Published
Publication Date
19-Nov-2019
Withdrawal Date
30-May-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
20-Nov-2019
Completion Date
20-Nov-2019

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SLOVENSKI STANDARD
01-februar-2020
Nadomešča:
SIST EN ISO 25424:2011
Sterilizacija izdelkov za zdravstveno nego - Para z nizko temperaturo in s
formaldehidom - Zahteve za razvoj, validacijo in rutinsko kontrolo sterilizacijskih
postopkov za medicinske pripomočke (ISO 25424:2018)
Sterilization of health care products - Low temperature steam and formaldehyde -
Requirements for development, validation and routine control of a sterilization process
for medical devices (ISO 25424:2018)
Sterilisation von Produkten für die Gesundheitsfürsorge - Niedertemperatur-Dampf-
Formaldehyd - Anforderungen an die Entwicklung, Validierung und Routineüberwachung
von Sterilisationsverfahren für Medizinprodukte (ISO 25424:2018)
Stérilisation des produits de santé - Formaldéhyde et vapeur à faible température -
Exigences pour le développement, la validation et le contrôle de routine d'un procédé de
stérilisation pour dispositifs médicaux (ISO 25424:2018)
Ta slovenski standard je istoveten z: EN ISO 25424:2019
ICS:
11.080.01 Sterilizacija in dezinfekcija na Sterilization and disinfection
splošno in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 25424
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 11.080.01 Supersedes EN ISO 25424:2011
English Version
Sterilization of health care products - Low temperature
steam and formaldehyde - Requirements for development,
validation and routine control of a sterilization process for
medical devices (ISO 25424:2018)
Stérilisation des produits de santé - Formaldéhyde et Sterilisation von Produkten für die
vapeur à faible température - Exigences pour le Gesundheitsfürsorge - Niedertemperatur-Dampf-
développement, la validation et le contrôle de routine Formaldehyd - Anforderungen an die Entwicklung,
d'un procédé de stérilisation pour dispositifs médicaux Validierung und Routineüberwachung von
(ISO 25424:2018) Sterilisationsverfahren für Medizinprodukte (ISO
25424:2018)
This European Standard was approved by CEN on 4 November 2019.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 25424:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
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 . 5
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. 7
Annex ZC (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 98/79/EC on in vitro diagnostic medical devices [OJ L
331] aimed to be covered . 9
Annex ZD (informative)  Relationship between this European standard and the General
Safety and Performance Requirements of Regulation (EU) 2017/745 aimed to be
covered. 11
Annex ZE (informative)  Relationship between this European standard and the General
Safety and Performance Requirements of Regulation (EU) 2017/746 aimed to be
covered. 14
European foreword
This document (EN ISO 25424:2019) has been prepared by Technical Committee ISO/TC 198
"Sterilization of health care products" in collaboration with Technical Committee CEN/TC 204
“Sterilization of medical devices” the secretariat of which is held by BSI.
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 May 2020, and conflicting national standards shall be
withdrawn at the latest by May 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 25424:2011 with a revised European Foreword and European
Annexes ZA, ZB and ZC, and additional European Annexes ZD and ZE.
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 the relationship with EU Directive(s) see informative Annex ZA, ZB, ZC, ZD or ZE, which is an
integral part of this document.
The following referenced documents are indispensable for the application of this document. For
undated references, the edition of the referenced document (including any amendments) listed below
applies. For dated references, only the edition cited applies. However, for any use of this standard
within the meaning of Annex ZA, ZB, ZC, ZD or ZE the user should always check that any referenced
document has not been superseded and that its relevant contents can still be considered the generally
acknowledged state-of-art.
When an IEC or ISO standard is referred to in the ISO standard text, this should be understood as a
normative reference to the corresponding EN standard, if available, and otherwise to the dated version
of the ISO or IEC standard as listed below.
NOTE The way in which these referenced documents are cited in normative requirements determines the
extent (in whole or in part) to which they apply.

Table – Correlation between normative references and dated EN and ISO standards
Normative references Equivalent dated standard
as listed in Clause 2 of the ISO
EN ISO
standard
ISO 11138-1:2017 EN ISO 11138-1:2017 ISO 11138-1:2017
ISO 11138-5:2017 EN ISO 11138-5:2017 ISO 11138-5:2017
ISO 11140-1:2014 EN ISO 11140-1:2014 ISO 11140-1:2014
ISO 11737-1 EN ISO 11737-1:2006 ISO 11737-1:2006
ISO 11737-2:2009 EN ISO 11737-2:2009 ISO 11737-2:2009
NOTE One standard normatively referred to by EN ISO 25424:2019 is undated. The referred standards also
include normative references to other dated and undated standards. For undated normative references, it should
always be assumed that the latest edition applies.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 25424:2018 has been approved by CEN as EN ISO 25424:2019 without any modification.

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/BC/CEN/89/9 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.
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive
90/385/EEC [OJ L 189]
Essential Requirements (ERs) of Clauses of this EN Qualifying remarks/Notes
Directive 90/385/EEC
7 4,5,6,7,8,9,10,11,12 This standard provides
requirements for the development,

validation and routine control of a
sterilization process using low
temperature steam and
formaldehyde for medical devices,
including requirements that the
sterilized medical device is safe and
performs as intended after
sterilization. This Essential
Requirement is addressed only with
regard to devices for which
sterilization by low temperature
steam and formaldehyde is
appropriate.
This relevant Essential Requirement
is only partly addressed in this
European Standard. Design and
packaging for maintenance of
sterility during transportation and
storage are not covered. Aspects of
manufacture other than those
related to sterilization by low
temperature steam and
formaldehyde 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.
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/BC/CEN/89/9 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.
Table ZB.1 — Correspondence between this European Standard and Annex I of Directive
93/42/EEC [OJ L 169]
Essential Requirements (ERs) of Clauses of this EN Qualifying remarks/Notes
Directive 93/42/EEC
8.3 4,5,6,7,8,9,10,11,12 This standard provides
requirements for the development,
validation and routine control of a
...

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