EN 17658:2022

Chemical disinfectants and antiseptics - Chemical textile disinfection for the domestic area - Test method and requirements (phase 2, step 2)

This document specifies a test method and the minimum performance requirements for the microbicidal efficacy of a chemical product intended for use in a wash process in a domestic environment, in a domestic wash equipment at low temperatures (≤40 °C). This procedure does not apply to certain types of laundry disinfection technologies which require specific devices (i.e. active substances generated in situ using specific devices). This method is not limited to certain types of textiles, types of products or steps in the washing cycle.
According to a phase 2, step 2 test definition, this document establishes the efficacy in laboratory test simulating practical use conditions of a chemical product.
This document cannot be applied when the disinfection is medical indicated (medical area) or in hygiene-sensitive areas where professional reprocessing of laundry is required (i.e. food, healthcare, medical and cleanroom sectors, PPE, and workwear). In those cases, EN 16616 and EN 14065 will apply.
NOTE   This method corresponds to a phase 2, step 2 test (see EN 14885).
EN 14885 specifies in detail the relationship of the various tests to one another and to “use recommendations”.

Chemische Desinfektionsmittel und Antiseptika - Chemische Textildesinfektion für den häuslichen Bereich - Prüfverfahren und Anforderungen (Phase 2, Stufe 2)

Dieses Dokument legt ein Prüfverfahren für und die Mindestleistungsanforderungen an die mikrobizide Wirksamkeit eines chemischen Produkts fest, dessen vorgesehene Verwendung ein Waschvorgang im häuslichen Bereich in einer Haushaltswaschmaschine bei niedrigen Temperaturen (≤ 40 °C) ist. Dieses Verfahren gilt nicht für bestimmte Arten von Wäschedesinfektionstechnologien, für die spezielle Geräte erforderlich sind (d. h. Wirkstoffe werden in situ mithilfe spezieller Geräte erzeugt). Dieses Verfahren ist nicht auf bestimmte Arten von Textilien, von Produkten oder auf bestimmte Schritte im Waschzyklus beschränkt.
Entsprechend der Definition einer Prüfung der Phase 2, Stufe 2 ermittelt dieses Dokument die Wirksamkeit im Prüflabor, wobei die Praxisbedingungen für die Anwendung eines chemischen Produkts simuliert werden.
Dieses Dokument kann nicht angewendet werden, wenn die Desinfektion medizinisch indiziert ist (medizinischer Bereich) oder in hygienisch sensiblen Bereichen, in denen eine professionelle Aufbereitung der Wäsche erforderlich ist (z. B. Lebensmittelbereich, Gesundheitswesen, Medizin- und Reinraumsektor, PSA und Arbeitskleidung). In solchen Fällen gelten EN 16616 und EN 14065.
ANMERKUNG   Dieses Verfahren entspricht einer Prüfung der Phase 2, Stufe 2 (siehe EN 14885).
EN 14885 legt im Einzelnen die Beziehungen der verschiedenen Prüfungen untereinander und zu den „Anwendungsempfehlungen“ fest.

Antiseptiques et désinfectants chimiques - Désinfection chimique du textile pour le domaine domestique - Méthode d'essai et prescriptions (phase 2, étape 2)

Le présent document spécifie une méthode d’essai et les prescriptions minimales de performance relatives à l’efficacité microbicide d’un produit chimique destiné à être utilisé dans un procédé de lavage dans un environnement domestique, dans des machines à laver à usage domestique à basses températures (≤ 40 °C). Ce mode opératoire ne s’applique pas à certains types de technologies de désinfection du linge qui nécessitent des dispositifs spécifiques (c’est-à-dire, des substances actives générées in situ à l’aide de dispositifs spécifiques). Cette méthode ne se limite pas à certains types de textiles, types de produits ou étapes du cycle de lavage.
Selon la définition d’un essai de phase 2, étape 2, ce document établit l’efficacité lors d’un essai en laboratoire simulant les conditions pratiques d’utilisation d’un produit chimique.
Le présent document ne peut pas s’appliquer lorsque la désinfection est à usage médical (secteur médical) ou dans les domaines sensibles aux normes d’hygiène dans lesquels le retraitement professionnel du linge est requis (c’est-à-dire, industrie agroalimentaire, secteur des soins de santé, secteur médical et salles blanches, EPI et vêtements de travail). Dans ces cas, l’EN 16616 et l’EN 14065 s’appliqueront.
NOTE   Cette méthode correspond à un essai de phase 2, étape 2 (voir l’EN 14885).
L’EN 14885 précise de manière détaillée la relation entre les différents essais et les « recommandations d’utilisation ».

Kemična razkužila in antiseptiki - Kemično razkuževanje tekstila za domačo uporabo - Preskusne metode in zahteve (faza 2, stopnja 2)

Ta evropski standard določa preskusno metodo in minimalne zahteve za mikrobicidno aktivnost kemičnega izdelka, kadar je namenjen razkuževanju onesnaženega tekstila v gospodinjskem perilu in preprečevanju prenosa mikroorganizmov v pralno vodo in drug tekstil. To vključuje tudi izdelke, ki so namenjeni povečanju higiene gospodinjskega perila in/ali preprečevanju estetskih težav (npr. neprijetne vonjave, kvarjenje). S to metodo je mogoče izmeriti prispevek biocidnega proizvoda k zmanjšanju števila mikrobov v onesnaženih oblačilih in pralni tekočini. Opisana metoda je laboratorijski preskus faze 2, korak 2, ki simulira pogoje uporabe proizvoda in je namenjena določanju mikrobicidne aktivnosti proizvoda (PT2- dezinfekcija tekstila, gospodinjska uporaba). Ta metoda ni omejena na nekatere vrste tekstila, saj upošteva realno najslabši možni primer (bombažni nosilec in polibombažni balast). Ta metoda ni omejena na nekatere obremenitvene zmogljivosti balasta, saj upošteva realno najslabši možni primer glede na tržne študije (razmerje med tekočino 1:5) Ta metoda ni omejena na nekatere vrste navodil za uporabo izdelka (samostojno, kot kombinirani izdelek ali samostojno, vendar v kombinaciji z drugimi pralnimi izdelki, kot so detergenti). Ta metoda ni omejena na določene stopnje pranja, v katerih se izdelek uporablja (predpranje, glavno pranje ali izpiranje), saj je začetna mikrobna obremenitev realno najslabši možni primer, ki zajema vse situacije, pogoji umazanije pa so prilagojeni glede na praktične pogoje uporabe Pri tej metodi se za končno točko šteje konec stopnje pranja, v kateri naj bi izdelek deloval. Ta metoda ni primerna za tehnologije dezinfekcije perila, ki zahtevajo posebne naprave (npr. aktivne snovi, pridobljene na mestu samem z elektrolizo). Ta metoda ni namenjena uporabi za dezinfekcijo perila na zdravstvenem področju (za to uporabo glej standard EN 16616) Vsa ta druga področja uporabe ne bodo zajeta, saj ta metoda ni namenjena uporabi: drugi uporabi, kjer je potrebna dezinfekcija tekstila (npr. predelava hrane, hoteli, delovna oblačila, npr. iz farmacevtske industrije, laboratoriji, območja z živili ali podobne institucije).

General Information

• Status: Published
• Publication Date: 27-Sep-2022
• ICS: 71.100.35 - Chemicals for industrial and domestic disinfection purposes
• Technical Committee: CEN/TC 216 - Chemical disinfectants and antiseptics
• Drafting Committee: CEN/TC 216/WG 3 - Food hygiene and domestic and institutional use
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 28-Sep-2022
• Due Date: 21-Jul-2022
• Completion Date: 28-Sep-2022
• Ref Project: SIST EN 17658:2023 - Chemical disinfectants and antiseptics - Chemical textile disinfection for the domestic area - Test method and requirements (phase 2, step 2)

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2023
Kemična razkužila in antiseptiki - Kemično razkuževanje tekstila za domačo
uporabo - Preskusne metode in zahteve (faza 2, stopnja 2)
Chemical disinfectants and antiseptics - Chemical textile disinfection for the domestic
area - Test method and requirements (phase 2, step 2)
Chemische Desinfektionsmittel und Antiseptika - Chemische Textildesinfektion für den
häuslichen Bereich - Prüfverfahren und Anforderungen (Phase 2, Stufe 2)
Antiseptiques et désinfectants chimiques - Désinfection chimique du textile pour le
domaine domestique - Méthode d'essai et prescriptions (phase 2, étape 2)
Ta slovenski standard je istoveten z: EN 17658:2022
ICS:
71.100.35 Kemikalije za dezinfekcijo v Chemicals for industrial and
industriji in doma domestic disinfection
purposes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17658
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2022
EUROPÄISCHE NORM
ICS 71.100.35
English Version
Chemical disinfectants and antiseptics - Chemical textile
disinfection for the domestic area - Test method and
requirements (phase 2, step 2)
Antiseptiques et désinfectants chimiques - Désinfection Chemische Desinfektionsmittel und Antiseptika -
chimique du textile pour le domaine domestique - Chemische Textildesinfektion für den häuslichen
Méthode d'essai et prescriptions (phase 2, étape 2) Bereich - Prüfverfahren und Anforderungen (Phase 2,
Stufe 2)
This European Standard was approved by CEN on 15 August 2022.

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, Türkiye 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17658:2022 E
worldwide for CEN national Members.

Contents Page
European foreword .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .6
4 Requirements .7
5 Test method .9
5.1 Principle .9
5.2 Materials and reagents .9
5.2.1 Test organisms .9
5.2.2 Culture media and reagents .9
5.3 Apparatus and glassware . 11
5.3.1 General. 11
5.4 Preparation of test organism suspensions . 14
5.4.1 Test organism suspensions (test suspension) . 14
5.5 Procedure for assessing the microbicidal activity of the product . 16
5.5.1 General. 16
5.5.2 Method . 17
5.6 Experimental data and calculation . 21
5.6.1 Explanation of terms and abbreviations . 21
5.6.2 Calculation . 21
5.7 Verification of methodology . 25
5.7.1 General. 25
5.7.2 Control of weighted mean counts . 25
5.7.3 Basic limits . 25
5.8 Expression of results and precision . 26
5.8.1 Reduction . 26
5.8.2 Repetitions . 26
5.9 Interpretation of results – conclusion . 27
5.9.1 General. 27
5.9.2 Microbicidal activity . 27
5.10 Test report . 30
Annex A (informative) Referenced strains in national collections . 32
Annex B (informative) Suitable neutralizers and rinsing liquids . 34
B.1 General. 34
B.2 Neutralizers . 34
B.3 Neutralizer added to the agar for counting . 35
Annex C (informative) Graphical representations of the test method . 36
Annex D (informative) Example of lab-scale devices . 38
Annex E (informative) Test report (example) . 39
Annex F (informative) SBL2004 composition . 46
Annex G (informative) Stainers and markers validated . 47
Bibliography . 48
European foreword
This document (EN 17658:2022) has been prepared by Technical Committee CEN/TC 216 “Chemical
disinfectants and antiseptics”, the secretariat of which is held by AFNOR.
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 March 2023, and conflicting national standards shall
be withdrawn at the latest by March 2023.
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.
Any feedback and questions on this document should be directed to the users’ national standards
body. A complete listing of these bodies can be found on the CEN website.
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, 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,
Türkiye and the United Kingdom.
Introduction
In the last few years, the need of energy saving has led to decreasing washing temperature of
domestic laundry to ≤ 40 °C. This fact compromises the level of microorganisms in the laundry items
after the washing process. Moreover, the fashion trends on textile design and fibre technology
provides cloth items that need to be washed in special care conditions (cool water, short cycles, soft
chemistry) in order to preserve their properties but at the same time without compromising their
hygienic level.
Chemistry plays an important role to provide good hygienic conditions to domestic laundry under
such described conditions.
This document is a phase 2 step 2 test, specifies a lab-scale methodology for establishing if a chemical
product used in any of the domestic laundry procedures (main wash and rinse cycle) have a
microbicidal activity (bactericidal and yeasticidal activity) on contaminated textiles, washing bath
and, an effect in avoiding cross contamination of microorganisms from contaminated textiles to non-
contaminated textiles.
This lab-scale methodology is carried out by using a tumbling device able to rotate an exposure
chamber 360° around a horizontal axis (Rotawash, Launderometer, Gyrowash, Linitester and Mathis
BFA have been validated in the Ring Trial). This tumbling device maintains optimal agitation
[constant 40 r/min (±2 r/min)] and precise temperature for consistently reliable test results.
Microorganisms are inoculated on textile carriers that are introduced in an exposure chamber to
simulate practical conditions including contact time, temperature, test organisms and interfering
substance (conditions which may influence the action of the product in practice). The manufacturer’s
instructions should be sufficient to allow the method in this document to be carried out fully [dosing,
washing phase (main wash, rinse cycle) temperature and washing time].
This test pretends to generate a common experimental framework in which products can be tested
to specify their effective dosage for each chosen experimental condition. Instructions for use
generated from the results of this test are the responsibility of manufacturers of products.

1 Scope
This document specifies a test method and the minimum performance requirements for the
microbicidal efficacy of a chemical product intended for use in a wash process in a domestic
environment, in a domestic wash equipment at low temperatures (≤40 °C). This procedure does not
apply to certain types of laundry disinfection technologies which require specific devices (i.e. active
substances generated in situ using specific devices). This method is not limited to certain types of
textiles, types of products or steps in the washing cycle.
According to a phase 2, step 2 test definition, this document establishes the efficacy in laboratory test
simulating practical use conditions of a chemical product.
This document cannot be applied when the disinfection is medical indicated (medical area) or in
hygiene-sensitive areas where professional reprocessing of laundry is required (i.e. food, healthcare,
medical and cleanroom sectors, PPE, and workwear). In those cases, EN 16616 and EN 14065 will
apply.
NOTE This method corresponds to a phase 2, step 2 test (see EN 14885).
EN 14885 specifies in detail the relationship of the various tests to one another and to “use
recommendations”.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
EN 1276, Chemical disinfectants and antiseptics - Quantitative suspension test for the evaluation of
bactericidal activity of chemical disinfectants and antiseptics used in food,
...