BS EN ISO 19679:2017
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Plastics. Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sediment interface. Method by analysis of evolved carbon dioxide
Hardcopy , PDF
09-07-2020
English
23-02-2018
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test environment
6 Reagents
7 Apparatus
8 Procedure
9 Calculation and expression of results
10 Validity of results
11 Test report
Annex A (informative) - Example of respirometric
system based on CO[2] measurement
Bibliography
Defines 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.
| Committee |
PRI/21
|
| DevelopmentNote |
2017 Edition incorporates corrigendum to BS ISO 19679. Renumbers and supersedes BS ISO 19679. Supersedes 15/30320081 DC. (02/2018)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
This International Standard 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.
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 buried in marine sediment is outside the scope of this International Standard.
Measurement of aerobic biodegradation can also be obtained by monitoring the oxygen consumption, as described in ISO 18830.
The conditions described in this International Standard may not always correspond to the optimum conditions for the maximum degree of biodegradation to occur.
| Standards | Relationship |
| ISO 19679:2016 | Identical |
| EN ISO 19679:2017 | Identical |
| ISO 10210:2012 | Plastics — Methods for the preparation of samples for biodegradation testing of plastic materials |
| ISO 18830:2016 | Plastics Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sandy sediment interface Method by measuring the oxygen demand in closed respirometer |
| ISO 8245:1999 | Water quality Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC) |
| ISO 14852:1999 | Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium Method by analysis of evolved carbon dioxide |
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