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EN ISO 14855-1:2012

Current
Current

The latest, up-to-date edition.

Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 1: General method (ISO 14855-1:2012)
Published date

01-12-2012

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) - Principle of test system
Annex B (informative) - Examples of graphical
        representation of carbon dioxide evolution
        and biodegradation curves
Annex C (informative) - Example of mass loss
        determination
Annex D (informative) - Round-robin testing
Annex E (informative) - Examples of forms
Bibliography

ISO 14855-1:2012 specifies a method for the determination of the ultimate aerobic biodegradability of plastics, based on organic compounds, under controlled composting conditions by measurement of the amount of carbon dioxide evolved and the degree of disintegration of the plastic at the end of the test. This method is designed to simulate typical aerobic composting conditions for the organic fraction of solid mixed municipal waste. The test material is exposed to an inoculum which is derived from compost. The composting takes place in an environment wherein temperature, aeration and humidity are closely monitored and controlled. The test method is designed to yield the percentage conversion of the carbon in the test material to evolved carbon dioxide as well as the rate of conversion.Also specified is a variant of the method, using a mineral bed (vermiculite) inoculated with thermophilic microorganisms obtained from compost with a specific activation phase, instead of mature compost. This variant is designed to yield the percentage of carbon in the test substance converted to carbon dioxide and the rate of conversion.

Committee
CEN/TC 249
DevelopmentNote
Supersedes EN ISO 14855. (09/2007)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

UNI CEN/TR 15822 : 2010 PLASTICS - BIODEGRADABLE PLASTICS IN OR ON SOIL - RECOVERY, DISPOSAL AND RELATED ENVIRONMENTAL ISSUES
CEN/TR 15822:2009 Plastics - Biodegradable plastics in or on soil - Recovery, disposal and related environmental issues
UNE-CEN/TR 15822:2011 IN Plastics - Biodegradable plastics in or on soil - Recovery, disposal and related environmental issues
S.R. CEN TR 15822:2009 PLASTICS - BIODEGRADABLE PLASTICS IN OR ON SOIL - RECOVERY, DISPOSAL AND RELATED ENVIRONMENTAL ISSUES

ISO 5663:1984 Water quality — Determination of Kjeldahl nitrogen — Method after mineralization with selenium
ISO 8245:1999 Water quality Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC)

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