EN ISO 22766:2021

Plastics - Determination of the degree of disintegration of plastic materials in marine habitats under real field conditions (ISO 22766:2020)

This document specifies test methods for the determination of the degree of disintegration of plastic materials exposed to marine habitats under real field conditions.
The marine areas under investigation are the sandy sublittoral and the sandy eulittoral zone where plastic materials can either be placed intentionally (e.g. biodegradable fishing nets) or end up as litter due to irresponsible human behaviour. This depends on their physical characteristics, form and size of the materials, and on water currents and tidal movements.
This document specifies the general requirements of the apparatus, and the procedures for using the test methods described.
The determination of the level of disintegration of plastic materials exposed to pelagic zones such as the sea surface or the water column above the seafloor are not within the scope of this document.
This document is not suitable for the assessment of disintegration caused by heat or light exposure.
The described field test is a disintegration test and not a biodegradation test. Therefore, it cannot be used for demonstrating biodegradation or for making unqualified claims such as "biodegradable in marine environment" and similar.

Kunststoffe - Bestimmung des Zersetzungsgrades von Kunststoff-Materialien in marinen Lebensräumen unter realen Feldbedingungen (ISO 22766:2020)

Dieses Dokument legt Prüfverfahren für die Bestimmung des Grads der Zersetzung von Kunststoffmaterialien, die Meereshabitaten ausgesetzt sind, unter realen Feldbedingungen fest.
Die untersuchten Meeresbereiche umfassen die sandige sublitorale und sandige eulitorale Zone, wo Kunststoffmaterialien entweder absichtlich (z. B. biologisch abbaubare Fischernetze) platziert werden oder als Abfall aufgrund von verantwortungslosem menschlichem Verhalten enden können. Dies hängt von ihren physikalischen Eigenschaften, der Form und Größe der Materialien sowie von Wasserströmungen und Gezeitenbewegungen ab.
Dieses Dokument legt allgemeine Anforderungen an die Prüfeinrichtung und die Verfahrensanweisungen zur Verwendung der beschriebenen Prüfverfahren fest.
Die Bestimmung des Zersetzungsgrads von Kunststoffmaterialien, die Pelagialzonen wie etwa der Meeresoberfläche oder der Wassersäule über dem Meeresboden ausgesetzt sind, ist nicht vom Anwendungsbereich dieses Dokuments umfasst.
Dieses Dokument ist nicht für die Beurteilung von Zersetzung durch Wärme- oder Lichtexposition geeignet.
Die beschriebene Feldprüfung ist eine Zersetzungsprüfung und keine Bioabbauprüfung. Sie kann daher nicht für den Nachweis des Bioabbaus oder unqualifizierte Aussagen wie „bioabbaubar in Meeresumgebung“ oder Ähnliches verwendet werden.

Plastiques - Détermination du degré de désintégration des matériaux plastiques dans les habitats marins en conditions réelles (ISO 22766:2020)

Le présent document spécifie des méthodes d’essai pour la détermination du degré de désintégration des matériaux plastiques exposés à des habitats marins en conditions réelles.
Les zones marines étudiées sont la zone sublittorale sableuse et la zone eulittorale sableuse, dans lesquelles des matériaux plastiques peuvent soit être placés intentionnellement (par exemple filets de pêche biodégradables), soit se retrouver sous forme de déchets en raison d’un comportement humain irresponsable. Cela dépend de leurs caractéristiques physiques, de leur forme et de leur taille, et des courants et mouvements de marées.
Le présent document spécifie les exigences générales relatives à l’appareillage et les modes opératoires permettant d’utiliser les méthodes d’essai décrites.
La détermination du niveau de désintégration des matériaux plastiques exposés à des zones pélagiques, telles que la surface de la mer ou la colonne d’eau au-dessus du fond océanique, n’entre pas dans le domaine d’application du présent document.
Le présent document ne convient pas pour évaluer la désintégration causée par une exposition à la chaleur ou à la lumière.
L’essai sur le terrain décrit est un essai de désintégration et non un essai de biodégradation. Par conséquent, il ne peut pas être utilisé pour démontrer la biodégradation ou pour émettre des affirmations générales de type «biodégradable en milieu marin» ou autres assertions similaires.

Polimerni materiali - Ugotavljanje stopnje razpada polimernih materialov v morskih habitatih v realnih terenskih pogojih (ISO 22766:2020)

Ta dokument določa preskusne metode za ugotavljanje stopnje razpada polimernih materialov, izpostavljenih morskim habitatom v realnih terenskih pogojih.
Morska območja, ki se preiskujejo, so peščena sublitoralna in peščena eulitoralna območja, kjer se lahko polimerni materiali odlagajo namerno (npr. biorazgradljive ribiške mreže) ali zaradi neodgovornega človekovega vedenja tam končajo kot smeti. To je odvisno od njihovih fizičnih lastnosti, oblike in velikosti materialov ter vodnih tokov in plimovanja.
Ta dokument določa splošne zahteve naprave in postopke za uporabo opisanih preskusnih metod.
Ugotavljanje stopnje razpada polimernih materialov, izpostavljenih pelagičnim območjem, kot je morska gladina ali vodni steber nad morskim dnom, ne spada na področje uporabe tega dokumenta.
Ta dokument ni primeren za ocenjevanje razpada zaradi izpostavljenosti toploti ali svetlobi.
Opisani terenski preskus je preskus razpadanja in ne preskus biorazgradljivosti, zato ga ni mogoče uporabiti za dokazovanje biorazgradljivosti ali podajanje neustreznih trditev, kot je »biorazgradljivo v morskem okolju«, in podobno.

General Information

• Status: Published
• Publication Date: 09-Nov-2021
• Withdrawal Date: 30-May-2022
• ICS: 83.080.01 - Plastics in general
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249 - Plastics
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 10-Nov-2021
• Due Date: 21-Aug-2023
• Completion Date: 10-Nov-2021
• Ref Project: SIST EN ISO 22766:2022 - Plastics - Determination of the degree of disintegration of plastic materials in marine habitats under real field conditions (ISO 22766:2020)

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2022
Polimerni materiali - Ugotavljanje stopnje razpada polimernih materialov v morskih
habitatih v realnih terenskih pogojih (ISO 22766:2020)
Plastics - Determination of the degree of disintegration of plastic materials in marine
habitats under real field conditions (ISO 22766:2020)
Kunststoffe - Bestimmung des Zersetzungsgrades von Kunststoff-Materialien in marinen
Lebensräumen unter realen Feldbedingungen (ISO 22766:2020)
Plastiques - Détermination du degré de désintégration des matériaux plastiques dans les
habitats marins en conditions réelles (ISO 22766:2020)
Ta slovenski standard je istoveten z: EN ISO 22766:2021
ICS:
13.020.40 Onesnaževanje, nadzor nad Pollution, pollution control
onesnaževanjem in and conservation
ohranjanje
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 22766
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2021
EUROPÄISCHE NORM
ICS 83.080.01
English Version
Plastics - Determination of the degree of disintegration of
plastic materials in marine habitats under real field
conditions (ISO 22766:2020)
Plastiques - Détermination du degré de désintégration Kunststoffe - Bestimmung des Zersetzungsgrades von
des matériaux plastiques dans les habitats marins en Kunststoff-Materialien in marinen Lebensräumen
conditions réelles (ISO 22766:2020) unter realen Feldbedingungen (ISO 22766:2020)
This European Standard was approved by CEN on 8 November 2021.

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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22766:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 22766:2020 has been prepared by Technical Committee ISO/TC 61 "Plastics” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 22766:2021 by
Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN.
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 2022, and conflicting national standards shall be
withdrawn at the latest by May 2022.
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 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 22766:2020 has been approved by CEN as EN ISO 22766:2021 without any modification.

INTERNATIONAL ISO
STANDARD 22766
First edition
2020-03
Plastics — Determination of the
degree of disintegration of plastic
materials in marine habitats under
real field conditions
Plastiques — Détermination du degré de désintégration des
matériaux plastiques dans les habitats marins en conditions réelles
Reference number
ISO 22766:2020(E)
©
ISO 2020
ISO 22766:2020(E)
© 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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 22766:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 3
5 Test procedure . 3
5.1 Test material . 3
5.2 Reference material . 4
5.3 Preparation of test and reference materials . 4
5.4 Number of replicates . 4
5.5 Exposure to marine habitats . 5
5.6 Termination of the field test . 5
6 Analysis and monitoring of the field test . 6
6.1 Photographic documentation . 6
6.2 Determination of disintegration . 6
6.2.1 General. 6
6.2.2 Sieving procedure . 6
6.2.3 Image analysis (photogrammetry) . 7
6.3 Analysing characteristics of plastic materials (optional) . 8
6.4 Monitoring environmental parameters (optional) . 8
7 Demonstration of a biologically active marine environment (optional) .9
8 Test report . 9
Annex A (normative) Exposure to the sublittoral zone .10
Annex B (normative) Exposure to the eulittoral zone .12
Annex C (informative) Example of image analysis (photogrammetry) .15
Bibliography .17
ISO 22766:2020(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 61, Plastics, Subcommittee SC 14,
Environmental aspects.
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.
iv © ISO 2020 – All rights reserved

ISO 22766:2020(E)
Introduction
Even though plastics that are biodegradable according to established land-based treatment standards
are not and never were intended as a solution to marine littering, the United Nations Environment
Programme (UNEP) recognizes that "biodegradability in seawater" can be part of the solution
(EuBP, 2016; UNEP, 2016). Hence, plastic materials that are biodegradable might be used as a potential
alternative option in order to reduce the residence time of plastic waste in case of dispersion. Thus, the
degree and rate of disintegration is of interest in order to determine the durability of products when
exposed to the marine environment and the physical disappearance of waste in case of dispersal.
This document descr
...