In a series of experiments, the results of this method using MODA-apparatus approximately correlated with JIS K6953 (ISO14855). It was suggested that the aeration-ratio and the water content played important roles in evolving carbon dioxide for the biodegradation of plastic materials. Degradations studies showed that other factors, such as the turning out intervals of the mass in a reactor and the water-holding capacity also have important roles in the degradation of them. In conclusion, under the controlled composting conditions during the experiment, this method demonstrates an effective screening test method for the compostability of plastic materials in a laboratory scale.
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