本文件适用于用于生产地膜的可生物降解塑料材料，或用于农业和园艺中地膜应用的可生物降解地膜。 本文件通过说明以下特征，规定了试验方法和评估标准: a） 成分控制； b） 生物降解； c） 对陆地生物的负面影响。 注:本文件可用于评估不符合地膜要求的其他土壤生物降解塑料产品。例如:滴水胶带、绳线、夹子和花盆。

This document is applicable to biodegradable plastic materials used to produce mulch films or biodegradable mulch films ready to be used for mulch applications in agriculture and horticulture. This document specifies test methods and evaluation criteria by addressing the following characteristics: a) control of constituents; b) biodegradation; c) negative effects on terrestrial organisms. NOTE？This document is construed in a way that it can be used to assess other soil biodegradable plastic products that do not qualify as mulch films. For example: drip tape, twine, clips, and plant pots.