Abstract
ISO 14855-1:2005 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.
General information
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Status: WithdrawnPublication date: 2005-10Stage: Withdrawal of International Standard [95.99]
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Edition: 1Number of pages: 21
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Technical Committee :ISO/TC 61/SC 5ICS :83.080.01
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Life cycle
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Previously
WithdrawnISO 14855:1999
WithdrawnISO 14855:1999/Amd 1:2004
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Now
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00
Preliminary
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10
Proposal
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20
Preparatory
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30
Committee
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40
Enquiry
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50
Approval
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60
Publication
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90
Review
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95
Withdrawal
Corrigenda
Correct the current edition; free; not included in the text of the existing standard.WithdrawnISO 14855-1:2005/Cor 1:2009
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00
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Revised by
PublishedISO 14855-1:2012