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  • BSI
    20/30399391 DC BS ISO 23977-2. Plastics. Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 2. Method by measuring the oxygen demand in closed respirometer
    Edition: 2020
    $44.66
    / user per year

Description of 20/30399391 DC 2020

This proposal 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 test is performed with either seawater only (“pelagic seawater test”) or with seawater to which little sediment was added (“suspended sediment seawater test”).

The pelagic seawater test simulates the conditions found in offshore areas with low water currents and low tidal movements, whereas the suspended sediment seawater test simulates conditions which might be found in coastal areas with stronger water currents and tidal movements.

The conditions described in this proposal may not always correspond to the optimum conditions for the maximum degree of biodegradation, but this test method is designed to give an indication of the potential biodegradability of plastic materials.

NOTE

This document is addressing plastic materials but can also be used for other materials.



Standard Number20/30399391 DC
TitleBS ISO 23977-2. Plastics. Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 2. Method by measuring the oxygen demand in closed respirometer
StatusDefinitive
Publication Date2020-01-20
Identical National Standard OfISO/DIS 23977-2
DescriptorsPlastic analysis, Plastic packaging materials, Plastics, Seawater corrosion, Seawater
ICS83.080.01 Plastics in general
CommitteePRI/89
PublisherBSI
Pages20

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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