SS-ISO-14855-1 Determination of the ultimate aerobic biodegradability of plastic materials under controlled omposting conditions - Method by analysis of evolved carbon dioxide - Part 1: General method (ISO 14855-1:2005, IDT)

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This part of ISO 14855 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. Subclauses 8.6 and 8.7 specify 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. The conditions described in this part of ISO 14855 may not always correspond to the optimum conditions for the maximum degree of biodegradation to occur.

To find similar documents by classification:

83.080.01 (Plastics in general)

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Designation Name

SS-ISO 14855-1:2005

Revision Level




Publication Date

Dec. 28, 2005



Page Count


International Equivalent

ISO 14855-1:2005(IDT)