Principles of main standards related to composting and biodegradability testing

PRINCIPLES OF MAIN STANDARDS RELATED TO COMPOSTING AND BIODEGRADABILITY TESTING [Pg.117]

ISO 14855-1 2005 - Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide- Part 1 General method [Pg.117]

It contains also 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. [Pg.117]

Principle The test method determines the ultimate biodegradability and degree of disintegration of test material under conditions simulating an intensive aerobic composting process. The inoculum used consists of stabilized, mature compost derived, if possible, from composting the organic fraction of solid municipal waste. [Pg.117]

The test material is mixed with the inoculum and introduced into a static composting vessel where it is intensively composted under optimum oxygen, temperature and moisture conditions for a test period not exceeding six months. [Pg.117]

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