Plastics. Determination of the ultimate aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved

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Hardcopy , PDF

Language(s)

English

Published date

11-06-2019

Publisher

British Standards Institution

This document specifies a method for determining the ultimate aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a closed respirometer or the amount of carbon dioxide evolved. The method is designed to yield an optimum degree of biodegradation by adjusting the humidity of the test soil.

If a non-adapted soil is used as an inoculum, the test simulates the biodegradation processes which take place in a natural environment; if a pre-exposed soil is used, the method can be used to investigate the potential biodegradability of a test material.

This method applies to the following materials:

natural and/or synthetic polymers, copolymers or mixtures of these;
plastic materials which contain additives such as plasticizers or colorants;
water-soluble polymers.

It does not necessarily apply to materials which, under the test conditions, inhibit the activity of the microorganisms present in the soil. Inhibitory effects can be measured using an inhibition control or by another suitable method. If the test material inhibits the microorganisms in the soil, a lower test material concentration, another type of soil or a pre-exposed soil can be used.

Committee	PRI/89
DocumentType	Standard
ISBN	9780580522451
Pages	34
PublisherName	British Standards Institution
Status	Current
Supersedes	BS EN ISO 17556:2012

Standards	Relationship
ISO 17556:2019	Identical
EN ISO 17556:2019	Identical

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BS EN ISO 17556:2019

Plastics. Determination of the ultimate aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved

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