ISO 14855-1 :
ISO 14855-1, titled “Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions – Method by analysis of evolved carbon dioxide,” measures the ultimate aerobic biodegradation of plastics in controlled composting environments focusing on thermophilic temperatures. These temperatures replicate the heat generated within compost heaps, which is vital for achieving efficient composting and organic matter breakdown.
How it works :
Sample Preparation : The plastic material, including biopolymers, is prepared into a suitable form for testing, such as pellets, films, or other shapes.
Controlled Composting Conditions : The prepared sample is introduced into a composting reactor or vessel, along with other organic materials, to simulate a controlled composting environment.
Monitoring of Evolved Carbon Dioxide (CO2) : During the composting process, the evolved CO2 resulting from the biodegradation of the plastic material is continuously monitored and measured.
Calculation of Biodegradation Efficiency : By analyzing the amount of CO2 produced over a specific period, the biodegradation efficiency of the plastic material is determined.
Reporting of Results : The results are reported as a percentage of carbon converted to CO2, indicating the extent of aerobic biodegradation.