Norm

NEN-ISO 14855-1:2005 en

Bepaling van de ultieme aërobisch-biologische afbreekbaarheid van kunststof materialen onder gecontroleerde composteringsomstandigheden - Methode door analyse van de afgegeven koolstofdioxide - Deel 1: Algemene methode

  • Deze norm is ingetrokken sinds 19-09-2007

98,05

Over deze norm

Status Ingetrokken
Aantal pagina's 21
Commissie Kunststoffen
Gepubliceerd op 01-11-2005
Taal Engels
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.

Details

ICS-code 83.080.01
Nederlandse titel Bepaling van de ultieme aërobisch-biologische afbreekbaarheid van kunststof materialen onder gecontroleerde composteringsomstandigheden - Methode door analyse van de afgegeven koolstofdioxide - Deel 1: Algemene methode
Engelse titel Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis ofevolved carbon dioxide - Part 1: General method
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