SIST EN ISO 11737-1:2018/A1:2021
(Amendment)Sterilization of health care products - Microbiological methods - Part 1: Determination of a population of microorganisms on products - Amendment 1 (ISO 11737-1:2018/Amd 1:2021)
Sterilization of health care products - Microbiological methods - Part 1: Determination of a population of microorganisms on products - Amendment 1 (ISO 11737-1:2018/Amd 1:2021)
Sterilisation von Produkten für die Gesundheitsfürsorge - Mikrobiologische Verfahren - Teil 1: Bestimmung der Population von Mikroorganismen auf Produkten - Änderung 1 (ISO 11737-1:2018/Amd 1:2021)
No scope available
Stérilisation des produits de santé - Méthodes microbiologiques - Partie 1: Détermination d'une population de microorganismes sur des produits - Amendement 1 (ISO 11737-1:2018/Amd 1:2021)
Sterilizacija izdelkov za zdravstveno nego - Mikrobiološke metode - 1. del: Določevanje populacije mikroorganizmov na izdelku - Dopolnilo A1 (ISO 11737-1:2018/Amd 1:2021)
General Information
- Status
- Published
- Public Enquiry End Date
- 04-Sep-2019
- Publication Date
- 22-Jul-2021
- Technical Committee
- VAZ - Healthcare
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 23-Jun-2021
- Due Date
- 28-Aug-2021
- Completion Date
- 23-Jul-2021
Relations
- Effective Date
- 01-Sep-2019
Overview
EN ISO 11737-1:2018/A1:2021 is Amendment 1 to ISO 11737‑1:2018, adopted by CEN to support harmonized microbiological methods for the sterilization of health care products. The standard specifies procedures for the determination of a population of microorganisms on products (commonly referred to as bioburden). This amendment updates the European adoption of the ISO document and clarifies its relationship to EU regulatory requirements (MDR 2017/745 and IVDR 2017/746).
Keywords: EN ISO 11737-1:2018/A1:2021, ISO 11737-1, bioburden, sterilization validation, microbiological methods, medical devices, MDR, IVDR.
Key topics and requirements
- Scope: Methods for determining the microbial population present on health-care products prior to sterilization (bioburden assessment).
- Purpose: Support validation and maintenance of sterilization processes and, where applicable, development/validation of processes to achieve specific microbial states other than sterility.
- Normative references: Cited standards include ISO 10012, ISO 13485, ISO 15189 and ISO/IEC 17025 (as referenced in the European foreword). Undated references imply the latest editions apply.
- Regulatory linkage: Annex ZA and ZB map the standard’s clauses to the General Safety and Performance Requirements of EU Regulations (MDR 2017/745 and IVDR 2017/746), providing a presumption of conformity for relevant requirements when the standard is cited in the Official Journal of the EU.
- Limitations: The standard addresses bioburden determination but does not cover packaging design for maintenance of sterility during transport/storage or manufacturing aspects unrelated to bioburden testing. Risk management references must be consistent with the applicable EU regulation wording.
Applications
- Sterilization validation and routine control: Establishing baseline bioburden for validation protocols and ongoing process monitoring.
- Product development: Assessing microbial load during design iterations when planning sterilization strategies.
- Quality and regulatory compliance: Demonstrating conformity with regulatory expectations for microbiological characterization of medical devices and in‑vitro diagnostic products.
- Laboratory implementation: Guidance for microbiology and testing laboratories performing product bioburden assays and for accreditation alignment (e.g., ISO/IEC 17025).
Who should use this standard
- Medical device and IVD manufacturers (quality, sterilization, R&D teams)
- Contract sterilization and microbiological testing laboratories
- Regulatory affairs professionals preparing conformity documentation for MDR/IVDR
- Accreditation bodies and notified bodies assessing sterilization validation evidence
Related standards
- ISO 11737‑2 (sterility testing methods) - complementary to Part 1
- ISO 13485 (quality management for medical devices)
- ISO/IEC 17025, ISO 15189 (laboratory competence)
Use EN ISO 11737‑1:2018/A1:2021 when establishing robust, regulatory‑aware bioburden testing programs that feed sterilization validation and ongoing process control.
Frequently Asked Questions
SIST EN ISO 11737-1:2018/A1:2021 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Sterilization of health care products - Microbiological methods - Part 1: Determination of a population of microorganisms on products - Amendment 1 (ISO 11737-1:2018/Amd 1:2021)". This standard covers: No scope available
No scope available
SIST EN ISO 11737-1:2018/A1:2021 is classified under the following ICS (International Classification for Standards) categories: 07.100.10 - Medical microbiology; 11.080.01 - Sterilization and disinfection in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 11737-1:2018/A1:2021 has the following relationships with other standards: It is inter standard links to SIST EN ISO 11737-1:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 11737-1:2018/A1:2021 is associated with the following European legislation: EU Directives/Regulations: 2017/745, 2017/746; Standardization Mandates: M/575, M/575 AMD 2. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2021
Sterilizacija izdelkov za zdravstveno nego - Mikrobiološke metode - 1. del:
Določevanje populacije mikroorganizmov na izdelku - Dopolnilo A1 (ISO 11737-
1:2018/Amd 1:2021)
Sterilization of health care products - Microbiological methods - Part 1: Determination of
a population of microorganisms on products - Amendment 1 (ISO 11737-1:2018/Amd
1:2021)
Sterilisation von Produkten für die Gesundheitsfürsorge - Mikrobiologische Verfahren -
Teil 1: Bestimmung der Population von Mikroorganismen auf Produkten - Änderung 1
(ISO 11737-1:2018/Amd 1:2021)
Stérilisation des produits de santé - Méthodes microbiologiques - Partie 1: Détermination
d'une population de microorganismes sur des produits - Amendement 1 (ISO 11737-
1:2018/Amd 1:2021)
Ta slovenski standard je istoveten z: EN ISO 11737-1:2018/A1:2021
ICS:
07.100.10 Medicinska mikrobiologija Medical microbiology
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 11737-1:2018/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2021
EUROPÄISCHE NORM
ICS 07.100.10; 11.080.01
English Version
Sterilization of health care products - Microbiological
methods - Part 1: Determination of a population of
microorganisms on products - Amendment 1 (ISO 11737-
1:2018/Amd 1:2021)
Stérilisation des produits de santé - Méthodes Sterilisation von Produkten für die
microbiologiques - Partie 1: Détermination d'une Gesundheitsfürsorge - Mikrobiologische Verfahren -
population de microorganismes sur des produits - Teil 1: Bestimmung der Population von
Amendement 1 (ISO 11737-1:2018/Amd 1:2021) Mikroorganismen auf Produkten - Änderung 1 (ISO
11737-1:2018/Amd 1:2021)
This amendment A1 modifies the European Standard EN ISO 11737-1:2018; it was approved by CEN on 28 September 2020.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant 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 amendment 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11737-1:2018/A1:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European standard and the General
Safety and Performance Requirements of Regulation (EU) 2017/745 aimed to be
covered. 5
Annex ZB (informative) Relationship between this European standard and the General
Safety and Performance Requirements of Regulation (EU) 2017/746 aimed to be
covered. 7
European foreword
This document (EN ISO 11737-1:2018/A1:2021) 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 Amendment to the European Standard EN ISO 11737-1:2018 shall be given the status of a national
standard, either by publication of an identical text or by endorsement, at the latest by December 2021,
and conflicting national standards shall be withdrawn at the latest by December 2021.
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 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) and Regulations, see informative Annex ZA and ZB, which are 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 or ZB, 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 10012 EN ISO 10012:2003 ISO 10012:2003
ISO 13485 EN ISO 13485:2016 ISO 13485:2016
ISO 15189 EN ISO 15189:2012 ISO 15189:2012
ISO/IEC 17025 EN ISO/IEC 17025:2017 ISO/IEC 17025:2017
NOTE The standards normatively referred to by ISO 11737-1:2018/Amd 1:2021 are undated. These 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 11737-1:2018/Amd1:2021 has been approved by CEN as EN ISO 11737-
1:2018/A1:2021 without any modification.
Annex ZA
(informative)
Relationship between this European standard and the General Safety and
Performance Requirements of Regulation (EU) 2017/745 aimed to be
covered
This European standard has been prepared under a Commission’s standardisation request to provide
one voluntary means of conforming to the General Safety and Performance Requirements of Regulation
(EU) 2017/745 of 5 April 2017 concerning medical devices [OJ L 117].
This document is an adoption of an International Standard. As the scope of the applicable regulatory
requirements differ from nation to nation and region to region, the scope of this document can differ
from the scope of the European Regulations that it supports. This document supports European
regulatory requirements only to the extent of the scope of the European regulations for medical devices
((EU) 2017/745).
Once this standard is cited in the Official Journal of the European Union under that Regulation,
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 General Safety and
Performance Requirements of that Regulation, 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 Regulation (EU) 2017/745. This means that risks have to be
‘reduced as far as possible’, ‘reduced to the lowest possible level’, ‘reduced as far as possible and appropriate’,
‘removed or reduced as far as possible’, ‘eliminated or reduced as far as possible’, ’removed or minimized as far as
possible’, or ‘minimized’, according to the wording of the corresponding General Safety and Performance
Requirement.
NOTE 2 The manufacturer’s policy for determining acceptable risk must be in compliance with General Safety
and Performance Requirements 1, 2, 3, 4, 5, 8, 9, 10, 11, 14, 16, 17, 18, 19, 20, 21 and 22 of the Regulation.
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 a General Safety and Performance 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 Regulation (EU)
2017/745 [OJ L 117]
General Safety and Performance
Clause(s) / sub-clause(s)
Requirements of Regulation Remarks / Notes
of this EN
(EU) 2017/745
11.3 4,5,6,7,8,9 This standard addresses the
determination of bioburden in the
validation and maintenance of a
sterilization process for medical
devices. It could also be applied in the
development, validation and routine
control of a process for attainment of a
specific microbial state other than
sterility.
This relevant General Safety and
Performance Requirement is only
partly addressed in this European
Standard. Design and packaging for
maintenance of a specific microbial
state during transportation and storage
are not covered. Aspects of
manufacture other than those related
to determination of bioburden in
attainment of a specific microbial state
are not covered.
11.4 first sentence only 4,5,6,7,8,9 This standard addresses the
determination of bioburden in the
validation and maintenance of a
sterilization process for medical
devices.
This relevant General Safety and
Performance 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 determination of
bioburden in definition, validation and
maintenance of a sterilization process
are not covered.
...
記事のタイトル:SIST EN ISO 11737-1:2018 / A1:2021 - 医療機器の滅菌 - 微生物学的な方法 - 第1部:製品上の微生物の数の決定 - Amendment 1(ISO 11737-1:2018 / Amd 1:2021) 記事の内容:この記事では、医療機器の滅菌に関する基準であるSIST EN ISO 11737-1:2018 / A1:2021の改訂について説明しています。この改訂、ISO 11737-1:2018 / Amd 1:2021は、製品上の微生物の数の決定に焦点を当てています。この改訂では、滅菌プロセスの効果を確保するための微生物学的試験の最新のガイドラインと方法を提供しています。医療施設は、これらの基準に従って製品の安全性と品質を維持し、患者を潜在的な感染から保護する必要があります。
記事のタイトル:SIST EN ISO 11737-1:2018/A1:2021 - 医療機器の滅菌 - 微生物学的方法 - 第1部:製品上の微生物の集団の決定 - 改訂1(ISO 11737-1:2018/Amd 1:2021) 記事の内容:この記事は、標準規格であるSIST EN ISO 11737-1:2018/A1:2021の改訂1について論じています。この標準は、医療機器の滅菌に関連し、製品上の微生物の集団を決定するための微生物学的な方法を概説しています。改訂では、標準に関する追加情報と更新が提供されています。
The article discusses an amendment (Amendment 1) to the standard SIST EN ISO 11737-1:2018/A1:2021. This standard pertains to the sterilization of healthcare products and outlines the microbiological methods for determining the population of microorganisms on these products. The amendment provides additional information and updates to the standard.
The article discusses the amendment to the SIST EN ISO 11737-1:2018/A1:2021 standard, which focuses on the sterilization of healthcare products. The amendment, known as ISO 11737-1:2018/Amd 1:2021, specifically addresses the determination of a population of microorganisms on products. This amendment is important for ensuring the effectiveness of sterilization methods in healthcare settings.
기사 제목: SIST EN ISO 11737-1:2018/A1:2021 - 의료기기의 살균 - 미생물학적 방법 - 제품상 미생물 군락의 판정 - 개정 1 (ISO 11737-1:2018/Amd 1:2021) 기사 내용: 이 기사는 의료기기의 살균에 관한 표준인 SIST EN ISO 11737-1:2018/A1:2021의 개정에 대해 논의하고 있다. 이 개정인 ISO 11737-1:2018/Amd 1:2021은 제품상 미생물 군락의 판정에 중점을 둔다. 이 개정은 살균 과정의 효과를 보장하기 위해 미생물학적 실험에 대한 업데이트된 지침과 방법을 제공한다. 의료 시설은 이러한 표준을 준수하여 제품의 안전성과 품질을 유지하고, 환자들이 잠재적인 감염으로부터 보호되도록 해야 한다.
기사 제목: SIST EN ISO 11737-1:2018/A1:2021 - 의료기기의 멸균 - 미생물학적 방법 - 제1부: 제품에 있는 미생물군의 결정 - Amendment 1 (ISO 11737-1:2018/Amd 1:2021) 기사 내용: 이 기사는 표준인 SIST EN ISO 11737-1:2018/A1:2021에 대한 Amendment 1에 관해 논의하고 있습니다. 이 표준은 의료기기의 멸균에 관련되며, 제품에 있는 미생물군을 결정하기 위한 미생물학적 방법을 개요로 설명합니다. 해당 개정판은 표준에 대한 추가 정보와 업데이트를 제공합니다.
The article discusses an amendment to the standard SIST EN ISO 11737-1:2018/A1:2021 regarding the sterilization of healthcare products. The amendment, known as ISO 11737-1:2018/Amd 1:2021, focuses on the determination of a population of microorganisms on products. This amendment provides updated guidelines and methods for microbiological testing in order to ensure the effectiveness of sterilization processes. It is essential for healthcare facilities to follow these standards to maintain the safety and quality of their products and protect patients from potential infections.










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