ISO 14855-1:2012规定了一种在有控制的堆肥条件下，通过测量放出的二氧化碳量和塑料末端分解程度来确定塑料的最终需氧生物降解性的方法考试。该方法旨在模拟固体混合城市垃圾有机部分的典型需氧堆肥条件。将测试材料暴露于从堆肥得到的接种物。堆肥发生在温度，通风和湿度被密切监测和控制的环境中。测试方法被设计为产生测试材料中的碳转化成二氧化碳的转化率以及转化率。 还规定了该方法的变体，使用用特定活化阶段从堆肥获得的嗜热微生物接种的矿物床（蛭石），而不是成熟的堆肥。该变体被设计为产生转化为二氧化碳的测试物质中的碳的百分比和转化率

ISO 14855-1:2012 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.