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  • BSI
    20/30408882 DC BS EN ISO 14852. Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium. Method by analysis of evolved carbon dioxide
    Edition: 2020
    $44.66
    / user per year

Description of 20/30408882 DC 2020

This document specifies a method, by measuring the amount of carbon dioxide evolved, for the determination of the degree of aerobic biodegradability of plastic materials, including those containing formulation additives. The test material is exposed in a synthetic medium under standardized laboratory conditions to an inoculum from activated sludge under aerobic, mesophilic conditions.

If an unadapted activated sludge is used as the inoculum, the test result can be used to assess the aerobic biodegradation processes which occur in a waste water treatment plant environment. If a mixed or pre-exposed inoculum is used, the method can be used to investigate the potential biodegradability of a test material.

The conditions used in this document do not necessarily correspond to the optimum conditions allowing maximum biodegradation to occur, but this test method is designed to measure the biodegradation of plastic materials and give an indication of their potential biodegradability.

The method enables the assessment of the biodegradation to be improved by calculating a carbon balance (optional, see Annex C).

The method applies to the following materials:

  1. natural and/or synthetic polymers, copolymers or mixtures thereof;

  2. plastic materials which contain additives such as plasticizers, colorants or other compounds;

  3. water-soluble polymers;

  4. materials which, under the test conditions, do not inhibit the microorganisms present in the inoculum. Inhibitory effects can be determined using an inhibition control or by another appropriate method (see, for example, ISO 8192[1]). If the test material is inhibitory to the inoculum, a lower test concentration, another inoculum or a pre-exposed inoculum can be used.



Standard Number20/30408882 DC
TitleBS EN ISO 14852. Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium. Method by analysis of evolved carbon dioxide
StatusDefinitive
Publication Date2020-07-02
Identical National Standard OfISO/DIS 14852
DescriptorsVolumetric analysis, Equations, Aerobic bacteria, Bibliography, Carbon dioxide, Biological analysis and testing, Determination of content, Dissolved gases, Microbiological analysis, Testing conditions, Plastics, Test specimens, Additives, Biodegradability, Carbon, Polymers, Specimen preparation, Chemical analysis and testing, Degradation, Test equipment, Gas analysis
ICS83.080.01 Plastics in general
CommitteePRI/89
PublisherBSI
Pages27

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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