EN ISO 23977-2:2021

Plastics - Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 2: Method by measuring the oxygen demand in closed respirometer (ISO 23977-2:2020)

This document specifies a laboratory test method for determining the degree and rate of the aerobic biodegradation level of plastic materials. Biodegradation of plastic materials is determined by measuring the oxygen demand in a closed respirometer 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 2: Verfahren mittels Messung des Sauerstoffbedarfs in einem geschlossenen Respirometer (ISO 23977-2:2020)

Dieses Dokument legt ein Laborprüfverfahren für die Bestimmung des Grads und der Geschwindigkeit des aeroben Bioabbaus von Kunststoffmaterialien fest. Der Bioabbau von Kunststoffmaterialien wird durch die Messung des Sauerstoffbedarfs in einem geschlossenen Respirometer bei Kontakt mit Meerwasser aus Küstenbereichen unter Laborbedingungen 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 2: Méthode par mesure de la demande en oxygène dans un respiromètre fermé (ISO 23977-2:2020)

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 des matériaux plastiques est déterminée en mesurant la demande en oxygène dans un respiromètre fermé lorsqu’ils sont 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 - 2. del: Metoda z merjenjem porabe kisika v zaprtem respirometru (ISO 23977-2:2020)

Ta dokument določa laboratorijsko preskusno metodo za določevanje stopnje in hitrosti aerobne biorazgradljivosti polimernih materialov. Biorazgradljivost polimernih materialov se določi z merjenjem porabe kisika v zaprtem respirometru 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

• 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 23977-2:2022 - Plastics - Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 2: Method by measuring the oxygen demand in closed respirometer (ISO 23977-2:2020)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 23977-2:2022
01-januar-2022
Polimerni materiali - Določanje aerobne biorazgradljivosti polimernih materialov,
izpostavljenih morski vodi - 2. del: Metoda z merjenjem porabe kisika v zaprtem
respirometru (ISO 23977-2:2020)
Plastics - Determination of the aerobic biodegradation of plastic materials exposed to
seawater - Part 2: Method by measuring the oxygen demand in closed respirometer (ISO
23977-2:2020)
Kunststoffe - Bestimmung des aeroben Bioabbaus von Meerwasser ausgesetzten
Kunststoff-Materialien - Teil 2: Verfahren mittels Messung des Sauerstoffbedarfs in
einem geschlossenen Respirometer (ISO 23977-2:2020)
Plastiques - Détermination de la biodégradation aérobie des matières plastiques
exposées à l'eau de mer - Partie 2: Méthode par mesure de la demande en oxygène
dans un respiromètre fermé (ISO 23977-2:2020)
Ta slovenski standard je istoveten z: EN ISO 23977-2:2021
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
SIST EN ISO 23977-2:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 23977-2:2022

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SIST EN ISO 23977-2:2022


EN ISO 23977-2
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 2: Method by
measuring the oxygen demand in closed respirometer (ISO
23977-2:2020)
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 2: Méthode par mesure de la demande en 2: Verfahren mittels Messung des Sauerstoffbedarfs in
oxygène dans un respiromètre fermé (ISO 23977- einem geschlossenen Respirometer (ISO 23977-
2:2020) 2:2020)
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 23977-2:2021 E
worldwide for CEN national Members.

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SIST EN ISO 23977-2:2022
EN ISO 23977-2:2021 (E)
Contents Page
European foreword . 3

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SIST EN ISO 23977-2:2022
EN ISO 23977-2:2021 (E)
European foreword
The text of ISO 23977-2:2020 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 23977-2:2021
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
...