EN ISO 23977-1:2021
(Main)Plastics - Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 1: Method by analysis of evolved carbon dioxide (ISO 23977-1:2020)
Plastics - Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 1: Method by analysis of evolved carbon dioxide (ISO 23977-1:2020)
This document specifies a laboratory test method for determining the degree and rate of the aerobic biodegradation level of plastic materials. Biodegradation is determined by measuring the CO2 evolved from plastic materials when exposed to seawater sampled from coastal areas under laboratory conditions.
The conditions described in this document might not always correspond to the optimum conditions for the maximum degree of biodegradation, however this test method is designed to give an indication of the potential biodegradability of plastic materials.
NOTE This document addresses plastic materials but can also be used for other materials.
Kunststoffe - Bestimmung des aeroben Bioabbaus von Meerwasser ausgesetzten Kunststoff-Materialien - Teil 1: Verfahren mittels Analyse des freigesetzten Kohlenstoffdioxids (ISO 23977 1:2020)
Dieses Dokument legt ein Laborprüfverfahren für die Bestimmung des Grads und der Geschwindigkeit des aeroben Bioabbaus von Kunststoffmaterialien fest. Der Bioabbau wird durch die Messung des CO2, das von Kunststoffmaterialien in Kontakt mit Meerwasser aus Küstenbereichen freigesetzt wird, unter Labor-bedingungen bestimmt.
Die in diesem Dokument beschriebenen Bedingungen entsprechen möglicherweise nicht immer den optima¬len Bedingungen für den maximalen Grad des Bioabbaus, jedoch ist dieses Prüfverfahren dafür ausgelegt, einen Hinweis auf die potentielle Bioabbaubarkeit von Kunststoffmaterialien zu liefern.
ANMERKUNG Dieses Dokument behandelt Kunststoffmaterialien, kann aber auch für andere Materialien verwendet werden.
Plastiques - Détermination de la biodégradation aérobie des matières plastiques exposées à l'eau de mer - Partie 1: Méthode par analyse du dioxyde de carbone dégagé (ISO 23977-1:2020)
Le présent document spécifie une méthode d’essai en laboratoire permettant de déterminer le taux et le niveau de biodégradation aérobie des matériaux plastiques. La biodégradation est déterminée en mesurant le CO2 libéré par des matériaux plastiques exposés à de l’eau de mer prélevée dans des zones côtières, dans des conditions de laboratoire.
Les conditions décrites dans le présent document ne correspondent pas nécessairement aux conditions optimales permettant d’obtenir le taux maximal de biodégradation; cependant, cette méthode d’essai est conçue pour donner une indication de la biodégradabilité potentielle des matériaux plastiques.
NOTE Le présent document concerne les matériaux plastiques, mais il peut aussi être utilisé pour d’autres matériaux.
Polimerni materiali - Določanje aerobne biorazgradljivosti polimernih materialov, izpostavljenih morski vodi - 1. del: Metoda z analizo sproščenega ogljikovega dioksida (ISO 23977-1:2020)
Ta dokument določa laboratorijsko preskusno metodo za določevanje stopnje in hitrosti aerobne biorazgradljivosti polimernih materialov. Biorazgradljivost se določi z merjenjem CO2, ki se sprošča iz polimernih materialov ob izpostavljenosti morski vodi, vzorčeni iz obalnih območij pod laboratorijskimi pogoji.
Pogoji, ki so opisani v tem dokumentu, morda niso vedno enaki idealnim pogojem, pri katerih pride do največje stopnje biorazgradljivosti, vendar je ta preskusna metoda zasnovana tako, da podaja oceno potencialne biorazgradljivosti polimernih materialov.
OPOMBA: Ta dokument obravnava polimerne materiale, vendar ga je mogoče uporabiti tudi za druge materiale.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2022
Polimerni materiali - Določanje aerobne biorazgradljivosti polimernih materialov,
izpostavljenih morski vodi - 1. del: Metoda z analizo sproščenega ogljikovega
dioksida (ISO 23977-1:2020)
Plastics - Determination of the aerobic biodegradation of plastic materials exposed to
seawater - Part 1: Method by analysis of evolved carbon dioxide (ISO 23977-1:2020)
Kunststoffe - Bestimmung des aeroben Bioabbaus von Meerwasser ausgesetzten
Kunststoff-Materialien - Teil 1: Verfahren mittels Analyse des freigesetzten
Kohlenstoffdioxids (ISO 23977 1:2020)
Plastiques - Détermination de la biodégradation aérobie des matières plastiques
exposées à l'eau de mer - Partie 1: Méthode par analyse du dioxyde de carbone dégagé
(ISO 23977-1:2020)
Ta slovenski standard je istoveten z: EN ISO 23977-1:2021
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 23977-1
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2021
EUROPÄISCHE NORM
ICS 83.080.01
English Version
Plastics - Determination of the aerobic biodegradation of
plastic materials exposed to seawater - Part 1: Method by
analysis of evolved carbon dioxide (ISO 23977-1:2020)
Plastiques - Détermination de la biodégradation Kunststoffe - Bestimmung des aeroben Bioabbaus von
aérobie des matières plastiques exposées à l'eau de Meerwasser ausgesetzten Kunststoff-Materialien - Teil
mer - Partie 1: Méthode par analyse du dioxyde de 1: Verfahren mittels Analyse des freigesetzten
carbone dégagé (ISO 23977-1:2020) Kohlenstoffdioxids (ISO 23977 1:2020)
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 23977-1:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 23977-1:2020 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 23977-1:2021
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 23977-1:2020 has been approved by CEN as EN ISO 23977-1:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 23977-1
First edition
2020-11
Plastics — Determination of the
aerobic biodegradation of plastic
materials exposed to seawater —
Part 1:
Method by analysis of evolved carbon
dioxide
Plastiques — Détermination de la biodégradation aérobie des
matières plastiques exposées à l'eau de mer —
Partie 1: Méthode par analyse du dioxyde de carbone dégagé
Reference number
ISO 23977-1:2020(E)
©
ISO 2020
ISO 23977-1:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2020 – All rights reserved
ISO 23977-1:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 3
5 Test environment . 3
6 Reagents . 3
7 Apparatus . 4
8 Procedure. 5
8.1 Test material . 5
8.2 Reference materials . 5
8.3 Test set up . 6
8.4 Pre-conditioning phase . 6
8.5 Start of the test . 6
8.6 Carbon dioxide measurement . 7
8.7 End of the test . 7
9 Calculation and expression of results . 8
9.1 Calculation . 8
9.1.1 Amount of CO produced . 8
9.1.2 Percentage of biodegradation.10
9.2 Visual inspection .11
9.3 Expression and interpretation of results .11
10 Validity of results .11
11 Test report .12
Annex A (informative) Example of a respirometric system .13
Bibliography .15
ISO 23977-1:2020(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
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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
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www .iso .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 14,
Environmental aspects.
A list of all parts in the ISO 23997 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
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