SIST EN ISO 19679:2020

Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sediment interface - Method by analysis of evolved carbon dioxide (ISO 19679:2020)

This document specifies a test method to determine the degree and rate of aerobic biodegradation of plastic materials when settled on marine sandy sediment at the interface between seawater and the seafloor, by measuring the evolved carbon dioxide (CO2). This test method can also be applied to other solid materials.
This test method is a simulation under laboratory conditions of the habitat found in different seawater/sediment-areas in the sea, e.g. in a benthic zone where sunlight reaches the ocean floor (photic zone) that, in marine science, is called sublittoral zone
The determination of biodegradation of plastic materials and other solid materials buried in marine sediment is outside the scope of this document.
NOTE    Measurement of aerobic biodegradation can also be obtained by monitoring the oxygen consumption, as described in ISO 18830.
The conditions described in this document do not always correspond to the optimum conditions for the maximum degree of biodegradation to occur.

Kunststoffe - Bestimmung des aeroben Bioabbaus von nicht-schwimmenden Kunststoffmaterialien in einer Meerwasser/Sediment-Schnittstelle - rüfverfahren mittels Analyse des freigesetzten Kohlenstoffdioxids (ISO 19679:2020)

Dieses Dokument legt ein Prüfverfahren zur Bestimmung des Grades und der Geschwindigkeit des aeroben Bioabbaus von Kunststoffmaterialien fest, welche sich auf dem marinen sandigen Sediment an der Grenzfläche zwischen Meereswasser und dem Meeresboden abgesetzt haben, indem das freigesetzte Kohlenstoffdioxid (CO2) gemessen wird. Dieses Prüfverfahren kann auch auf andere Feststoffe angewendet werden.
Dieses Prüfverfahren ist eine Simulation des Lebensraums unter Laborbedingungen, der in unterschied¬lichen Meereswasser-/Sedimentbereichen im Meer anzutreffen ist, so z. B. das Benthal, in dem Sonnenlicht noch bis zum Meeresgrund vordringt (euphotische Zone), die in der Meereswissenschaft als Sublitoral bezeichnet wird.
Die Bestimmung des Bioabbaus von Kunststoffmaterialien und anderen Feststoffen, die von Meeressediment begraben sind, ist nicht Gegenstand dieses Dokuments.
ANMERKUNG Die Messung des aeroben Bioabbaus kann auch durch Überwachung des Sauerstoffverbrauchs erfolgen, wie in ISO 18830 beschrieben.
Die in diesem Dokument beschriebenen Bedingungen entsprechen nicht immer den Optimalbedingungen, unter denen der höchste Grad an biologischem Abbau möglich ist.

Plastiques - Détermination de la biodégradation aérobie des matières plastiques non-flottantes dans une interface eau de mer/sédiments - Méthode par analyse du dioxyde de carbone libéré (ISO 19679:2020)

Le présent document spécifie une méthode d'essai permettant de déterminer le taux et le niveau de biodégradation aérobie des matériaux plastiques lorsqu'ils se trouvent sur des sédiments sableux marins à l'interface entre l'eau de mer et le fond océanique, en mesurant le dioxyde de carbone (CO2) libéré. Cette méthode d'essai peut également être appliquée à d'autres matériaux solides.
Cette méthode d'essai est une simulation, dans les conditions de laboratoire, de l'habitat rencontré dans différentes zones d'eau de mer/de sédiments en mer, par exemple dans une zone benthique où les rayons du soleil atteignent le fond océanique (zone photique) c'est-à-dire ce qu'on appelle, en science marine, la zone sublittorale.
La détermination de la biodégradation des matériaux plastiques et autres matériaux solides enfouis dans les sédiments marins est hors du domaine d'application du présent document.
NOTE       Le mesurage de la biodégradation aérobie peut également être obtenu en surveillant la consommation d'oxygène, comme décrit dans l'ISO 18830.
Les conditions décrites dans le présent document ne correspondent pas nécessairement aux conditions optimales permettant d'obtenir le taux maximal de biodégradation.

Polimerni materiali - Določanje aerobne biorazgradljivosti neplavajočih polimernih materialov v vmesnem predelu med morsko vodo in peščenim sedimentom - Metoda z analizo sproščenega ogljikovega dioksida (ISO 19679:2020)

General Information

• Status: Published
• Public Enquiry End Date: 23-Dec-2019
• Publication Date: 19-Jul-2020
• ICS: 83.080.01 - Plastics in general
• Technical Committee: IPMA - Polimer materials and products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Jul-2020
• Due Date: 13-Sep-2020
• Completion Date: 20-Jul-2020
• Ref Project: EN ISO 19679:2020 - Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sediment interface - Method by analysis of evolved carbon dioxide (ISO 19679:2020)

Relations

• Replaces: SIST EN ISO 19679:2018 - Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sediment interface - Method by analysis of evolved carbon dioxide (ISO 19679:2016)
• Effective Date: 08-Jul-2020
• Revised: SIST EN ISO 19679:2018 - Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sediment interface - Method by analysis of evolved carbon dioxide (ISO 19679:2016)
• Effective Date: 10-Jul-2019

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2020
Nadomešča:
SIST EN ISO 19679:2018
Polimerni materiali - Določanje aerobne biorazgradljivosti neplavajočih polimernih
materialov v vmesnem predelu med morsko vodo in peščenim sedimentom -
Metoda z analizo sproščenega ogljikovega dioksida (ISO 19679:2020)
Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a
seawater/sediment interface - Method by analysis of evolved carbon dioxide (ISO
19679:2020)
Kunststoffe - Bestimmung des aeroben Bioabbaus von nicht-schwimmenden
Kunststoffmaterialien in einer Meerwasser/Sediment-Schnittstelle - rüfverfahren mittels
Analyse des freigesetzten Kohlenstoffdioxids (ISO 19679:2020)
Plastiques - Détermination de la biodégradation aérobie des matières plastiques non-
flottantes dans une interface eau de mer/sédiments - Méthode par analyse du dioxyde
de carbone libéré (ISO 19679:2020)
Ta slovenski standard je istoveten z: EN ISO 19679:2020
ICS:
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 19679
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2020
EUROPÄISCHE NORM
ICS 83.080.01 Supersedes EN ISO 19679:2017
English Version
Plastics - Determination of aerobic biodegradation of non-
floating plastic materials in a seawater/sediment interface
- Method by analysis of evolved carbon dioxide (ISO
19679:2020)
Plastiques - Détermination de la biodégradation Kunststoffe - Bestimmung des aeroben Bioabbaus von
aérobie des matières plastiques non-flottantes dans nicht-schwimmenden Kunststoffmaterialien in einer
une interface eau de mer/sédiments - Méthode par Meerwasser/Sediment-Schnittstelle - Prüfverfahren
analyse du dioxyde de carbone libéré (ISO mittels Analyse des freigesetzten Kohlenstoffdioxids
19679:2020) (ISO 19679:2020)
This European Standard was approved by CEN on 7 June 2020.

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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19679:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 19679:2020) has been prepared by Technical Committee ISO/TC 61 "Plastics"
in collaboration with 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 January 2021, and conflicting national standards shall
be withdrawn at the latest by January 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 supersedes EN ISO 19679:2017.
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 19679:2020 has been approved by CEN as EN ISO 19679:2020 without any modification.

INTERNATIONAL ISO
STANDARD 19679
Second edition
2020-06
Plastics — Determination of aerobic
biodegradation of non-floating plastic
materials in a seawater/sediment
interface — Method by analysis of
evolved carbon dioxide
Plastiques — Détermination de la biodégradation aérobie des
matières plastiques non-flottantes dans une interface eau de mer/
sédiments — Méthode par analyse du dioxyde de carbone libéré
Reference number
ISO 19679:2020(E)
©
ISO 2020
ISO 19679:2020(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
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Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 19679:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Test environment . 2
6 Reagents . 2
7 Apparatus . 3
8 Procedure. 3
8.1 Test material . 3
8.2 Reference material . 4
8.3 Preparation of the sediment . 4
8.4 Test setup . 4
8.5 Pre-conditioning phase . 4
8.6 Start of the test . 5
8.7 Carbon dioxide measurement . 5
8.8 End of the test . 6
9 Calculation and expression of results . 6
9.1 Calculation . 6
9.1.1 Amount of CO produced . 6
9.1.2 Percentage of biodegradation. 8
9.2 Visual inspection . 8
9.3 Expression and interpretation of results . 8
10 Validity of results . 9
11 Test report . 9
Annex A (informative) Example of respirometric system based on CO measurement .11
Bibliography .12
ISO 19679:2020(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
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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 the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
The committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 14, Environmental
aspects, in collaboration with the European Committee for Standardization (CEN) Technical Committee
CEN/TC 249, Plastics, in accordance with the Agreement on technical cooperation between IS
...