标准摘要
[中文适用范围]： 本文件规定了一种在受控堆肥条件下，通过称量释放的二氧化碳量来确定塑料材料最终需氧生物降解性的方法。该方法旨在通过调节堆肥容器的湿度、通风和温度，以获得最佳生物降解速率。该方法适用于以下材料：自然和/或合成聚合物及其共聚物，以及这些聚合物的混合物；含有添加剂（如增塑剂或着色剂）的塑料材料；水溶性聚合物；在测试条件下不抑制接种物中存在微生物活性的材料。如果测试材料抑制接种物中的微生物，则可使用另一种成熟堆肥或预暴露堆肥。 [外文原描述]： This document specifies a method for determining the ultimate aerobic biodegradability of plastic materials under controlled composting conditions by gravimetric measurement of the amount of carbon dioxide evolved. The method is designed to yield an optimum rate of biodegradation by adjusting the humidity, aeration and temperature of the composting vessel. The method applies to the following materials: — natural and/or synthetic polymers and copolymers, and mixtures of these; — plastic materials that contain additives such as plasticizers or colorants; — water-soluble polymers; — materials that, under the test conditions, do not inhibit the activity of microorganisms present in the inoculum. If the test material inhibits microorganisms in the inoculum, another type of mature compost or pre-exposure compost can be used.
英文名称Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions — Method by analysis of evolved carbon dioxide — Part 2: Gravimetric measurement of carbon dioxide evolved in a laboratory-scale test